Log in

Relevant bibliographies by topics / Concrete construction quality / Journal articles

To see the other types of publications on this topic, follow the link: Concrete construction quality.

Journal articles on the topic 'Concrete construction quality'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Concrete construction quality.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Gjørv, Odd E. "Quality Control and Quality Assurance for Concrete Durability." Key Engineering Materials 711 (September 2016): 76–83. http://dx.doi.org/10.4028/www.scientific.net/kem.711.76.

Full text

Abstract:

The durability of concrete structures in severe environments is not only related to design and materials but also to construction. Thus, much of the observed durability problems can be ascribed due to lack of proper quality control and quality assurance during concrete construction resulting in poorly achieved construction quality. Upon completion of new concrete structures, the achieved construction quality typically shows a high scatter and variability, and during operation of the structures, any weaknesses and deficiencies will soon be revealed whatever durability specifications and materials have been applied. To a certain extent, a probability approach to the durability design can accommodate the high scatter and variability. However, a numerical approach alone is insufficient for ensuring the durability; greater control and improvements in durability also require the specification of performance-based durability requirements which can be verified and controlled during concrete construction in order to achieve quality assurance. For new major concrete infrastructure, documentation of achieved construction quality and compliance to the durability specification should be essential parts of any rational approach to controlling and increasing the durability. In the present paper, a case study is presented which provides comparisons of work performed under performance and prescriptive durability specifications.

APA, Harvard, Vancouver, ISO, and other styles

2

Davidyuk, Artem, and Igor Rumyantsev. "Quality control of high-performance concrete in high-rise construction during operation." MATEC Web of Conferences 170 (2018): 01035. http://dx.doi.org/10.1051/matecconf/201817001035.

Full text

Abstract:

With onset of the XXI century, the demand for construction of high-rise buildings with the load-bearing framework made of high-performance cast-in-situ concrete has increased many-fold in the construction sector. Specific features of the high-performance concrete of bearing structures in the situation of real operation of high-rise buildings are continuously studied by scientists and specialists all over the world, and regulatory and methodological documents are being complemented and adjusted. High-performance concretes and structures made of them possess some specific features that should be taken into account in quality control. The methods of concrete inspection and concrete strength evaluation described in GOST 18105 “Concretes. Guidelines on Testing and Evaluation of Strength” and GOST 22690 “Concretes. Evaluation of Strength by Mechanic Non-Destructive Test Methods” were written when precast reinforced concrete was predominantly used in the construction sector and were limited to the functions of intra-factory quality control of reinforced concrete products. At present, instruments for non-destructive testing using indirect methods are usually calibrated with the help of local destructions, as a rule, a pull out or rib shear test. The said methods are in fact indirect since they indicate the force of destruction of the surface layer of a structure.

APA, Harvard, Vancouver, ISO, and other styles

3

Chen, Yu, Cheng Zhu Yan, and Chao Ouyang. "Quality Control Measures of Concrete Work." Applied Mechanics and Materials 214 (November 2012): 460–63. http://dx.doi.org/10.4028/www.scientific.net/amm.214.460.

Full text

Abstract:

Today's social engineering construction cannot be separated from the concrete, Concrete is a non-uniform brittle material, Concrete in the construction process will encounter many real problems. And this article is to discuss common quality problems in concrete construction, and to introduce effective control measures.

APA, Harvard, Vancouver, ISO, and other styles

4

Zhang, Jin Yang. "Commercial Concrete Quality Test." Applied Mechanics and Materials 193-194 (August 2012): 887–90. http://dx.doi.org/10.4028/www.scientific.net/amm.193-194.887.

Full text

Abstract:

The appearance of commercial concrete has heightened architectural construction level, improved construction civilization and offered the guarantee of the popularization and application of new tech significantly. Meanwhile, its popularization has brought the issues of structural solid concrete strength test and early plastic cracks. Currently, the solution for commercial concrete structural strength test is mainly done by means of method of non-destructive test of core-drilling correction. Merely the primary analysis can be done over the early plastic cracks to find no reasonable explanation toward those cracks, nor define the responsibilities of the related subjectival responsible parts that cause the cracks.

APA, Harvard, Vancouver, ISO, and other styles

5

Cheng, Shao Tsai, and I. Tsen Liu. "Construction Technology for Improving Concrete Surface Quality." Applied Mechanics and Materials 353-356 (August 2013): 2803–7. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.2803.

Full text

Abstract:

The reinforced concrete is widely used in the current building system; there are several finishing-free concrete surface techniques for the time being, but the undesirable phenomena affecting flatness and smoothness, such as air voids, pores, honeycombs and cold joints on the completed surface often appear. For this study, the Vibration Degassing Machine (VDM) was created and patented which is used to conduct the second partial ramming modification on the interfaces between concrete and formworks that eliminates the air voids on concrete surface efficiently and reduces the pits after removing formworks to enhance the smoothness on concrete surface which ideally presents the beauty of original design.

APA, Harvard, Vancouver, ISO, and other styles

6

Wang, Gui Ling, Ming Lei Ma, Dong Mei Miao, and Hong Juan Ma. "Pump Ability of Concrete Mixture Improvement Based on Rich Mortar Theory Testing Method." Applied Mechanics and Materials 472 (January 2014): 704–7. http://dx.doi.org/10.4028/www.scientific.net/amm.472.704.

Full text

Abstract:

Ready-mixed concrete has gained more and more popularity in the construction projects in China. Long distance or high dislocation pump of concrete mixture is difficult to control the concrete quality , even more worse, the concrete may become drier or stocked during the pumping. How to improve the concretes pump ability is a major concern of the construction company. With the development of civil engineering, the building get much more higher and the bridge get much more longer, the pump ability of concrete matters the final product quality of the structure. This article proposed a comprehensive research on pump-ability of concrete mixture from the in field experiences by CCEED (China Construction Eighth Engineering Division).

APA, Harvard, Vancouver, ISO, and other styles

7

Sun, Li Gong. "Pump Concrete Construction Technology." Applied Mechanics and Materials 229-231 (November 2012): 2518–21. http://dx.doi.org/10.4028/www.scientific.net/amm.229-231.2518.

Full text

Abstract:

In recent years, pump concrete construction technology is widely put in use because the modern architecture trends to over- height, large- span, and over-load. In the basis of the railway engineering examples, the thesis elaborates the ratio design of high-strength pump concrete, construction technology and quality control with reference to projects of the same kind.

APA, Harvard, Vancouver, ISO, and other styles

8

Kazlitina, O. V., Karina Y. Martynova, Artem K. Golubinsky, and S. A. Kazlitin. "Development of the Compositional Binder for Cement-Concrete Used in Monolithic Construction." Materials Science Forum 974 (December 2019): 9–13. http://dx.doi.org/10.4028/www.scientific.net/msf.974.9.

Full text

Abstract:

One of the urgent problems of modern concrete science is the use and improvement of high-quality concrete. The emergence of such concretes has opened a new era in construction. Their unique properties are: high strength and corrosion resistance, water resistance and frost resistance, adjustable deformability. High-quality concretes provide high guaranteed parameters of the operational reliability of buildings and structures under the conditions of complex environmental effects and loads, significantly reduce construction time and reduce investment risks. One of the promising materials that allows you to ensure all of the above characteristics is fine-grained concrete based on a composite binder.

APA, Harvard, Vancouver, ISO, and other styles

9

Gudimettla, Jagan M., Michael F. Praul, and Jim Grove. "New Quality Assurance Tests for Building Quality Concrete Pavement." Transportation Research Record: Journal of the Transportation Research Board 2630, no. 1 (January 2017): 41–50. http://dx.doi.org/10.3141/2630-06.

Full text

Abstract:

Concrete materials and paving technologies have evolved considerably during the past century. However, testing technologies for concrete during construction have not kept pace. Some of the tests that are routinely used are not necessarily performance indicators and some are not made in real time. Seven new technologies are presented that are simple, real-time, field implementable, and economical and in many cases are performance indicators. Although some of these technologies could be used during the mixture design stage, others could be used during construction and some for both purposes. These technologies can be used to supplement or, in some cases, to replace the traditional tests for paving concrete. The discussion focuses on three items: ( a) traditional tests for paving concrete, ( b) new tests and technologies that could be used to supplement or replace the traditional tests, and ( c) suggested future specifications. Data collected by the FHWA Mobile Concrete Laboratory from its technology implementation efforts are presented to support the narrative on the benefits of these new technologies.

APA, Harvard, Vancouver, ISO, and other styles

10

Li, Xiu. "The Quality Control on Shengmi Bridge Arch Rib Construction." Advanced Materials Research 1004-1005 (August 2014): 1464–67. http://dx.doi.org/10.4028/www.scientific.net/amr.1004-1005.1464.

Full text

Abstract:

Introduced the essential construction craft of Nanchang Shengmi bridge (75+2×228+75m center bearing type steel tube concrete tie bar arched bridge). According to the construction craft and the quality specification request, discussed the steel arched bridge manufacture and the anticorrosion, the steel arched bridge rib erects, the steel arched bridge rib welding, the steel arched bridge in concrete configuration and the scene constructs, the steel tube protection coating construction, then proposed the construction quality control of large span steel tube concrete arch bridge. The conclusion of the article may be used at the similar steel tube concrete arched bridge construction.

APA, Harvard, Vancouver, ISO, and other styles

11

Bowders, John J., J. Erik Loehr, Deepak Neupane, and Abdelmalek Bouazza. "Construction Quality Control for Asphalt Concrete Hydraulic Barriers." Journal of Geotechnical and Geoenvironmental Engineering 129, no. 3 (March 2003): 219–23. http://dx.doi.org/10.1061/(asce)1090-0241(2003)129:3(219).

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Kaitukov, Batraz, Mihail Stepanov, and Pavel Kapyrin. "The choice of concrete mixers for the concrete preparation." MATEC Web of Conferences 178 (2018): 06016. http://dx.doi.org/10.1051/matecconf/201817806016.

Full text

Abstract:

The production of commodity concretes is a large segment of the construction industry and a testing base for concrete mixers. The choice of high-reliable concrete mixers for high-quality production of various brands of concrete is topical. When choosing concrete mixers, the most important is condition for improving the quality of mixing. Solving this problem, the analysis of various parameters and structural designs of concrete mixers is carried out. Dependencies are established that show the properties of concrete of various brands with their composition and technical characteristics of concrete mixers. Variants of rational selection of concrete mixers that provide high uniformity of concretes and a combination of the components of the mixture are proposed. The capacities of various concrete mixers for the preparation of commodity concrete are determined and the optimum rotational speeds of the working elements of concrete mixers are determined. Reasonable speeds of movement of working elements are revealed and dependences of the Reynolds number on frequency of rotation of a drum between capacity and diameter of a drum of a concrete mixer are established. This method of selecting rational concrete mixers allows reducing operating costs and improving the quality of concrete.

APA, Harvard, Vancouver, ISO, and other styles

13

Wu, Wen Gui, Qing Xia Gu, Jun Wang, Tie Ming Wu, Huai Li Lin, Ke Ping Sun, and Qing Li. "Construction and Quality Control of Concrete Using Barite as Aggregate." Key Engineering Materials 302-303 (January 2006): 462–69. http://dx.doi.org/10.4028/www.scientific.net/kem.302-303.462.

Full text

Abstract:

This paper presents mix proportion design and the construction of the barite concrete structure, mixing, transportation and construction characteristic of the barite concrete. Technical solutions were proposed to problems in construction.

APA, Harvard, Vancouver, ISO, and other styles

14

Yang, Shui Sheng, Jin Cai Su, Xiao Qian Yang, and Wei Zhang. "Cement Concrete Pavement Condition and Construction Quality Control in Hengshui City." Advanced Materials Research 857 (December 2013): 288–96. http://dx.doi.org/10.4028/www.scientific.net/amr.857.288.

Full text

Abstract:

This article overviews the general condition of roads and cement concrete in Hengshui City; Summarizes the characteristics of cement concrete pavement; Analyses the causes of current route status. Take the cement concrete pavement of Hengde Highway Jingzhou Connecting Line as an example, the article introduces the cement concrete pavement construction technology, construction quality control measures and effects, and the changes of construction quality two years after opening to traffic.

APA, Harvard, Vancouver, ISO, and other styles

15

Xu, Chun Hong, and Zhan Fu Jing. "Analysis on the Mass Concrete Test and Application in Stadium Project." Applied Mechanics and Materials 416-417 (September 2013): 1738–40. http://dx.doi.org/10.4028/www.scientific.net/amm.416-417.1738.

Full text

Abstract:

Mass concrete technology has been widely used in the construction field. In engineering construction, the quality and construction technology of mass concrete are directly related to the quality of the projects. Thus, before the construction of mass concrete, a series of experiments should be made, and also the key points of the construction technology should be strictly followed in the construction process. In this paper, by taking the application of mass concrete in stadium project as an example, the test before the construction of mass concrete and the technical application in the construction are analyzed.

APA, Harvard, Vancouver, ISO, and other styles

16

Li, Yong, and Chang Sheng Guan. "Innovation on Commercial Concrete Floor Slab Construction Technology." Applied Mechanics and Materials 353-356 (August 2013): 2836–39. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.2836.

Full text

Abstract:

Take Shunjing International Plaza project as an example, investigate on the status of large areas of cast-in-place pumping commercial concrete floor construction , In view of common quality defects of early shrinkage cracks, innovate pumping concrete construction technology, namely, set the sub-grid band, strictly control the quality of raw materials and the concrete mix ratio, rub repeatedly both manually and mechanically, enhance early maintenance, adopt appropriate technical intermittence process and so on, After the engineering applications, the technology had guaranteed the concrete quality smooth and dense, eliminated the early cracks of the concrete.

APA, Harvard, Vancouver, ISO, and other styles

17

Wang, Jian Ping, Xiang Yu Zhao, and Cheng Lin Li. "Reliability Control of Quality of Reinforced Concrete Structure during Construction." Advanced Materials Research 594-597 (November 2012): 761–65. http://dx.doi.org/10.4028/www.scientific.net/amr.594-597.761.

Full text

Abstract:

The reliability control of reinforced concrete structure during construction is important for ensuring the safety of the structure. The paper puts forth the main influence factors of construction quality and the control measures of these factors through the discussion of reliability control of construction quality, and given the processing method of quality defects of reinforced concrete structure during construction.

APA, Harvard, Vancouver, ISO, and other styles

18

Han, Suqin, Xiuyong Ni, and Ruimin Huang. "Study on Quality Control of Concrete Raw Materials in Road and Bridge Construction." Frontiers Research of Architecture and Engineering 4, no. 1 (May 19, 2021): 22. http://dx.doi.org/10.30564/frae.v4i1.3118.

Full text

Abstract:

The main material of concrete is a construction building material composed of water and mineral mixture and cement and chemical additives in the corresponding proportion and below the standard. In the process of making concrete material, slurry and cement are needed to mix, then cement slurry and sand are mixed into mortar according to the corresponding proportion, and aggregate is added to mortar to form concrete building material. In the process of concrete preparation, the most important construction link is mixing, which needs to be fully stirred to make the performance of concrete meet the construction needs. In the process of concrete construction technology development, both mix ratio and production technology have become more and more mature, but there are still some problems, which have an impact on the quality of concrete. Therefore, this paper discusses the quality control of concrete raw materials according to the construction process of road and bridge.

APA, Harvard, Vancouver, ISO, and other styles

19

Dong, Ying Na, and Su Hua Yin. "New Construction Technique Applied in Super High Rise Concrete Structure - Wanxin Building in Shenyang, China." Advanced Materials Research 424-425 (January 2012): 1293–96. http://dx.doi.org/10.4028/www.scientific.net/amr.424-425.1293.

Full text

Abstract:

The current development of concrete structure tends to mass concrete structure and superhigh concrete structure. But construction quality for ultrahigh concrete structure is difficult to be controlled due to its disadvantages such as large volume, high strength, complicated structure and difficult construction etc. This paper elaborates the key construction technique of concrete filled steel tube composite column and concrete structure applied in ultrahigh concrete structure—Wanxin Building in Shenyang, China, which can provide a useful reference for construction quality control of relevant concrete projects.

APA, Harvard, Vancouver, ISO, and other styles

20

Bu, Na Rui, Huan Qing Cai, Run Shan Bai, and Zhi Qiang Li. "Quality Inspection of Reinforced Concrete Structures and Reinforcement." Advanced Materials Research 479-481 (February 2012): 1036–40. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.1036.

Full text

Abstract:

In the modern design and construction of building structures, building structural safety, reliability is a top priority for construction work. In combination with practical engineering quality inspection and reinforcement methods the building structure are analyzed and presented.

APA, Harvard, Vancouver, ISO, and other styles

21

Li, Wei. "Vibrating-Type Asphalt Concrete Construction Test." Advanced Materials Research 512-515 (May 2012): 2937–42. http://dx.doi.org/10.4028/www.scientific.net/amr.512-515.2937.

Full text

Abstract:

Vibrating-type Asphalt Concrete is a new term. As a new type of asphalt concrete, various tests with regard to it are of practical significance. Mix of asphalt concrete indoors recommended by tests is verified and adjusted in the construction tests so that preparation, storage, mixing, transportation, paving, quality test, etc. of raw material of asphalt concrete and corresponding processing parameter can be identified to guide the construction of vibrating-type concrete core wall.

APA, Harvard, Vancouver, ISO, and other styles

22

Kazlitina, O. V., E. S. Glagolev, A. S. Milkina, and S. A. Kazlitin. "Study of High-Quality Concrete Properties for Roadway Surfaces." Materials Science Forum 974 (December 2019): 477–81. http://dx.doi.org/10.4028/www.scientific.net/msf.974.477.

Full text

Abstract:

Currently, the device of cement concrete pavements is still less popular than the asphalt covering. In the construction of roads, great attention should be paid to the widespread use of new, efficient building materials and products of improved quality, with a high degree of prefabrication, ensuring an increase in the level of industrialism, a reduction in material consumption and the cost of road construction. The experience of research, design and devices allows a systematic approach to the design appointment, the choice of materials and technologies for the device of cement concrete roads. The device of cement concrete web of fiber-reinforced concrete is one of the promising areas in the construction complex.

APA, Harvard, Vancouver, ISO, and other styles

23

Yalong, Liu. "Analysis on key technical nodes of prefabricated concrete construction." E3S Web of Conferences 236 (2021): 05009. http://dx.doi.org/10.1051/e3sconf/202123605009.

Full text

Abstract:

Prefabricated concrete (PC) buildings are a relatively new type of housing construction. It is not only necessary to ensure the quality of PC components, but also to guarantee the quality of key technical nodes of construction. Based on specific engineering project cases, this article proposes solutions and methods for the key technical nodes of prefabricated concrete construction, and proves their feasibility and effectiveness through practical applications. It illustrates an optimization of prefabricated concrete construction technology to improve construction quality.

APA, Harvard, Vancouver, ISO, and other styles

24

Tam, Vivian W. Y., X. F. Gao, and C. M. Tam. "Quality Improvement of Recycled Aggregate Concrete." Key Engineering Materials 302-303 (January 2006): 308–13. http://dx.doi.org/10.4028/www.scientific.net/kem.302-303.308.

Full text

Abstract:

The developments of recycled aggregate concrete pressing hard in construction activities; however, the limitations on their applications had never being ended. The focus of this paper is: i) investigating the waste management strategy in construction; ii) proposing the two-stage mixing approach (TSMA) to improve the quality of RAC; and iii) experimenting the TSMA and assessing the benefits possibly gained. It proposes a new approach in mixing concrete, namely, the two-stage mixing method, to improve compressive strength of RAC and lower its strength variability. The replacement ratio from zero to thirty is under experiment on their compressive strength. Based upon the experimental results, improvements of 31 % in strength at 28 days with 30 % RA substitute was achieved. The effect can be attributably to the porous nature of the RA and the pre-mix process which can make some pores filled up resulting in a denser concrete and thus leading to higher strength when compared with the traditional mixing approach. Therefore, two-stage mixing approach can open up a wider application of recycled aggregate concrete.

APA, Harvard, Vancouver, ISO, and other styles

25

Lo, King-Chi, Heung-Wing Terry Kwok, Ming-Fung Francis Siu, Qiping Geoffrey Shen, and Chi-Keung Lau. "Internet of Things-Based Concrete Curing Invention for Construction Quality Control." Advances in Civil Engineering 2021 (June 7, 2021): 1–13. http://dx.doi.org/10.1155/2021/9933615.

Full text

Abstract:

The efficiency of the traditional concrete curing process on site is low, due to the difficulties in providing continuous supervision and control of the curing environment, leading to considerable variation in the curing regimes experienced by different concrete pours. To enhance concrete curing practice, technologies have been harnessed which eliminate human involvement enabling more rigorous control of the environmental conditions affecting curing, but the potential for Internet of Things (IoT) technologies had yet to be explored in this context. This research study examined an IoT-based concrete curing control system based on sensor technologies invented for monitoring and controlling the moisture content of hardening concrete to the levels appropriate for good quality hardened concrete. Based on on-site experiments, the performance of this IoT-based method was compared with the performance of traditional curing methods. The results indicate that the system invented outperforms the traditional approach both in terms of concrete curing quality and time spent on supervision.

APA, Harvard, Vancouver, ISO, and other styles

26

Zhou, Ting. "Analysis on Construction Quality Control Technology of Reinforced Concrete Shear Wall Structure." Frontiers Research of Architecture and Engineering 1, no. 4 (November 7, 2018): 117. http://dx.doi.org/10.30564/frae.v1i4.251.

Full text

Abstract:

In the process of continuous development of construction enterprises, new requirements have been put forward for construction projects. By strengthening the construction quality control of reinforced concrete shear wall structure, the construction level of reinforced concrete can be continuously improved, the construction quality can be guaranteed, and the construction project can be successfully completed, which is worthy of extensive application and promotion in construction enterprises, thus providing a broader development space for construction enterprises.

APA, Harvard, Vancouver, ISO, and other styles

27

Yu, Le Hua, Shuang Xi Zhou, and Wen Wu Deng. "Evaluation on Quality of Cement Concrete in Pavement of Highway." Advanced Materials Research 717 (July 2013): 295–300. http://dx.doi.org/10.4028/www.scientific.net/amr.717.295.

Full text

Abstract:

According to the construction specification and relevant data collected from construction situ, quality of cement concrete in pavement of highway was evaluated by statistic result of flexural strength in this paper. The assessment and analysis were based on three statistic parameters of flexural strength, which are the qualified value of flexural strength, the minimum of flexural strength and variation coefficient of flexural strength, respectively. The estimating results could be summarized that the pavement concrete had been endowed with stronger flexural strength and better stability so to satisfy relevant target of highway standards. Meanwhile it was discussed that quality characteristics of pavement concrete was changed with main construction factors included milepost distance, section distribution, half-side spatial position, construction time and other environment. Furthermore, the technical methods for enhancing concrete pavement were proposed.

APA, Harvard, Vancouver, ISO, and other styles

28

Jin, Guo Hui, Xiao Dan Niu, and Xiao Li Wang. "Research on the Construction Quality Control of Unbonded Prestressed Concrete." Applied Mechanics and Materials 501-504 (January 2014): 2195–98. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.2195.

Full text

Abstract:

On account of unbonded prestressed concrete construction technology is a high demand specialized, strict operation, high technical content job [, so the construction quality control study of unbonded prestressed concrete play a vital role to the quality of the structure construction, impact the quality of the whole project. In view of this, this paper analysis and inductive the main point of it from three stages: before, under and after the construction, expect to play a role of reference and guidance to the engineering practice.

APA, Harvard, Vancouver, ISO, and other styles

29

Nakarai, K., I. Kurashige, and T. Kishi. "Post-Construction Quality Verification of In-Place Reinforced Concrete." Concrete Journal 51, no. 2 (2013): 153–58. http://dx.doi.org/10.3151/coj.51.153.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Kuroiwa, S., and M. Iijima. "Role the Engineer in Quality Management of Concrete Construction." Concrete Journal 52, no. 9 (2014): 780–83. http://dx.doi.org/10.3151/coj.52.780.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Wu, Wen-qing, Feng Lin, and Jia-Jia Fu. "Investigation on Construction Quality Indices for Concrete Box Girders." IABSE Symposium Report 97, no. 14 (January 1, 2010): 62–68. http://dx.doi.org/10.2749/222137810796062923.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Niu, Hui. "Technical Research on Quality Control of Fly Ash Concrete." Advanced Materials Research 230-232 (May 2011): 592–95. http://dx.doi.org/10.4028/www.scientific.net/amr.230-232.592.

Full text

Abstract:

Based on comprehensive quality management theory, we have studied quality factors of fly ash high-performance concrete in construction, put forward the method of beforehand control, course control and afterwards control. From the project construction of the actual conditions, the raw material selection, mixture design and try gradation and concrete performance of fly ash concrete, has been comprehensively studied and analysised. The optimal dosage of fly ash has been determined with good workability of different fly ash concrete strength grade and mechanical properties meeting the design requirements and good durability, which demonstrates the good effect of the high-performance concrete implementation of total quality control management through the engineering practice.

APA, Harvard, Vancouver, ISO, and other styles

33

Zhao, Chun Zhi, Yi Liu, Shi Wei Ren, and Jiang Quan. "Testing and Green Assessment Technology for Ready-Mixed Concrete." Key Engineering Materials 768 (April 2018): 306–13. http://dx.doi.org/10.4028/www.scientific.net/kem.768.306.

Full text

Abstract:

Concrete is the most extensively used material in building and civil project structure. With the rapid development of economic construction, urban construction and infrastructure construction increase year by year, so there is a greater demand for concrete, which brings the rapid development of ready-mixed concrete industry. During the rapid development, structural safety and durability problems caused by concrete quality appear frequently. Meanwhile, to implement the fundamental national policies of resource conservation and environment protection, according to Green Building Action Plan (GUOBANFA [2013] No.1) approved by CPC Central Committee and the State Council, besides meeting the quality requirements, ready-mixed concrete must also meet the green products requirements of "energy conservation, emission reduction, safety, convenience and recyclability" for the vigorous development of green building material and supporting the requirements for building energy conservation, green building and new-type urbanization construction. By quality testing, this paper elaborates the green assessment technology for ready-mixed concrete in combination with raw material quality control, design of mix ratio, production process quality control, construction process quality control, residual concrete treatment, hardened concrete quality control, and control of dust, noise and wastewater. The greening of ready-mixed concrete brings the production and application of green building material, promotes the transformation and upgrading of building material industry and drives the development of green building.

APA, Harvard, Vancouver, ISO, and other styles

34

Zhang, Shao Jun. "The Construction Quality Control Measures of Reinforced Concrete Cover Research." Applied Mechanics and Materials 599-601 (August 2014): 1094–97. http://dx.doi.org/10.4028/www.scientific.net/amm.599-601.1094.

Full text

Abstract:

reinforced concrete structures reinforced protective layer deviation will directly affect the mechanical properties and durability of the reinforced concrete member, in relation to the structure of the use of safety and service life. The control to the protective layer of reinforced concrete structures include the following aspects: to do a good job of double sample, reinforced the blue prints.the design, production and installation of template engineering, reinforcing steel bar colligation molding process, placed, binding of fixed steel protective layer block and the requirements on the installation of the steel skeleton.

APA, Harvard, Vancouver, ISO, and other styles

35

Belentsov, Yuri A., and Liliya F. Kazanskaya. "Non-destructive methods of concrete quality control as factor in reliability of concrete and reinforced concrete structures in transport facilities." Transportation Systems and Technology 4, no. 1 (March 15, 2018): 058–67. http://dx.doi.org/10.17816/transsyst2018041058-067.

Full text

Abstract:

Aim: The development of theory and practice of construction science leads to a need to enhance the basics of design, construction and operation of concrete and reinforced concrete structures. Despite significant progress, there is risk of collapse of different structures at various stages of their lifecycle. Current state of construction industry leads to a need to increase the quality and reliability of buildings and structures under construction. Methods: The authors have used methods of probabilistic forecasting in this work Results: The development of methods of construction materials control, particularly concrete and reinforced concrete, leads to a gradual implementation of non-destructive control methods. To assess the change of confidence and reliability coefficients of designed structures, the authors have substantiated the transition to probabilistic rationing of strength properties of concrete and reinforced concrete structures using classes. Also, the authors suggest implementation of non-destructive control methods. However, non-destructive control methods have a number of drawbacks, the key among these being the decrease of confidence coefficient while preparing a calibration curve, which drastically affects the results of quality control. It is possible to solve the problem by creating a set of control tests including both destructive and non-destructive quality control methods. This will provide systems for collecting testing information of high accuracy.

APA, Harvard, Vancouver, ISO, and other styles

36

Hatungimana, Daniel, Şemsi Yazıcı, and Ali Mardani-Aghabaglou. "EFFECT OF RECYCLED CONCRETE AGGREGATE QUALITY ON PROPERTIES OF CONCRETE." Journal of Green Building 15, no. 2 (March 1, 2020): 57–69. http://dx.doi.org/10.3992/1943-4618.15.2.57.

Full text

Abstract:

ABSTRACT The possibility of the use of recycled aggregates from the construction industry in green concrete production is of increasing importance to reduce the negative environmental impact associated with construction and demolition wastes. The objective of this study is to investigate the effect of recycled concrete aggregate (RCA) quality on the properties of hardened concrete properties such as compressive strength, splitting tensile strength, density, water absorption capacity and porosity accessible to water. The RCA used in this study was obtained from the crushing of waste concrete with two different compressive strengths (LRCA obtained from the crushing of waste concrete having compressive strengths below 30 MPa and HRCA obtained from the crushing of waste concrete having compressive strengths above 30 MPa). The natural coarse limestone aggregate was 100% replaced with coarse LRCA and HRCA. As a result of the study, the use of 100% HRCA and %100 LRCA instead of limestone coarse aggregate in the concrete adversely affected its mechanical and physical properties. In addition, HRCA showed better performance in terms of compressive strength, tensile strength, water absorption and porosity compared to the use of LRCA. Furthermore, the percentage of adhered mortar on the surface of LRCA and HRCA was analyzed using a computerized micro tomography device, and it was found that the percentages of attached mortar and aggregates are 61% and 35.5% for LRCA, whilst the attached mortar and aggregate contents for HRCA are 45.9% and 53.7%, respectively.

APA, Harvard, Vancouver, ISO, and other styles

37

Farid, Hamad, Muhammad Shoaib Mansoor, Syyed Adnan Raheel Shah, Nasir Mahmood Khan, Rana Muhammad Farooq Shabbir, Muhammad Adnan, Hunain Arshad, Inzmam-Ul Haq, and Muhammad Waseem. "Impact Analysis of Water Quality on the Development of Construction Materials." Processes 7, no. 9 (September 2, 2019): 579. http://dx.doi.org/10.3390/pr7090579.

Full text

Abstract:

This research dealt with the impact of the quality of the water source on the mechanical properties of construction materials. The mechanical properties of construction materials include compressive, tensile, and flexural strength. Water samples were collected from different resources, these samples were then synthetically investigated to identify and compare their quality parameters. After a detailed chemical analysis of water samples from three sources—wastewater, surface or canal water, and ground water—construction concrete material samples were prepared. The construction materials were developed with the same water–cement ratio, i.e., 0.60 for each concrete mix sample at two mix ratios—M1 (1:2:4) and M2 (1:1.5:3). Slump cone and compacting factor tests were conducted on the fresh concrete to determine its workability prior to its hardening. Then, at 7, 14, 21, and 28 days for each mix, tests for mechanical properties were carried out to determine the compressive, tensile, and flexure strengths. Results showed that the mechanical properties of the concrete made by utilizing wastewater and surface water were more noteworthy as compared to the concrete made by groundwater. This study will help in the production of concrete which depends on waste and surface canal water, even for large projects like rigid pavement construction and water-related structures.

APA, Harvard, Vancouver, ISO, and other styles

38

Pulyaev, I. S., and S. M. Pulyaev. "OBJECTS OF TRANSPORT INFRASTRUCTURE: EXPERIENCE OF SCIENTIFIC SUPPORT IN CONSTRUCTION WITHIN THE “QUALITY” CONCEPT IMPLEMENTATION." Russian Automobile and Highway Industry Journal 16, no. 5 (November 2, 2019): 618–34. http://dx.doi.org/10.26518/2071-7296-2019-5-618-634.

Full text

Abstract:

Introduction. The paper deals with the issues related to the implementation of the “quality” concept in the construction of reinforced concrete transport facilities linked with the scientific support during design and construction. Nowadays this problem particularly relevant in the context of the modern construction solutions, combined with the need to obtain the required properties of concrete structures and ensure the economic feasibility of construction. The aim of the research is to generalize and systematize the main methods and techniques of concrete works, which minimize the defects and cracks while the construction of transport infrastructure.Materials and methods. On the example of different technologies used in the Russian construction over last 10 years, the authors demonstrated the developed methods of obtaining high quality concrete products taking into account tested and proved modern building materials.Results. The results of the research formed the basis of the projects, technological regulations for the production, specifications and standards of organizations, guidelines. Moreover, the results also allowed implementing the concept of “quality” in transport construction based on obtaining defect-free reinforced concrete structures with specified properties, taking into account the use of modern building materials.Discussion and conclusions. The research allows carrying out construction of various massiveness and extent. The obtained results form the basis of construction technology of other industrial and civil construction objects with reinforced concrete application. The paper is interesting and useful for specialists in providing defect-free construction of reinforced concrete building structures, for engineering and technical staff. The authors dedicate the research to the memory of Professor and Doctor of Technical Sciences, A.R. Solovyanchik (1938-2019).

APA, Harvard, Vancouver, ISO, and other styles

39

BUTENKO, Sergey A., and Dinara R. ZALYAKAEVA. "ASSESSMENT OF QUALITY AND STRENGTH OF CONCRETE IN CONDITIONS OF REAL CONSTRUCTION." Urban construction and architecture 9, no. 4 (December 15, 2019): 4–10. http://dx.doi.org/10.17673/vestnik.2019.04.1.

Full text

Abstract:

The determination of the actual class of concrete in monolithic reinforced concrete structures is the most important factor determining the quality and strength of structures. In practice, the actual grade of concrete may differ from the design value. If this difference occurs in the direction of decreasing the actual concrete class, then the normative and design characteristics of concrete, the bearing capacity and rigidity of the structures, respectively, decrease and there is a need to strengthen the structures. Current regulatory documents allow you to determine the actual class of concrete in both continuous and spot inspection of structures. The article discusses specific examples to determine the actual class of concrete and draws conclusions about the rational use of a continuous or selective examination of structures of various types with specific examples.

APA, Harvard, Vancouver, ISO, and other styles

40

Zhao, Shun Bo, and Chun Jie Liu. "Construction and Quality Evaluation of Prestressed High-Strength Concrete Hollow Slabs." Applied Mechanics and Materials 90-93 (September 2011): 1092–95. http://dx.doi.org/10.4028/www.scientific.net/amm.90-93.1092.

Full text

Abstract:

Combined with the application of high-performance concrete in bridge engineering, the construction technics of pretensioned prestressed high-strength concrete (PPHC) hollow slabs with new section is summarized. The qualities of concrete in C80 strength grade are statistically analyzed based on the precast of 75 PPHC hollow slabs for two bridges. The results show that it is reliable to precast PPHC hollow slabs for bridge construction.

APA, Harvard, Vancouver, ISO, and other styles

41

Hu, Chen. "Roller Compacted Concrete Dam Compacted Thickness Increased Analytical Quality Assurance." Applied Mechanics and Materials 405-408 (September 2013): 3127–30. http://dx.doi.org/10.4028/www.scientific.net/amm.405-408.3127.

Full text

Abstract:

At present, roller compacted concrete (called RCC) technology has developed rapidly. So in order to make the RCC dam, RCC dam construction technologies have been further developed and accelerate its construction schedule. Many projects have begun to regulate the conduct of RCC which has been breakthrough in compaction layer thickness 30cm field test, which by increasing RCC compaction layer thickness. Many experiments construction proved that: RCC roller compacted concrete layer thickness increasing is feasible. However the increasing compaction thickness, the deck construction process and the successful completion of the jelling time of concrete is the key factors to ensure quality of the dam. It is the big prerequisite for completion. We will integrate field test to the quality control of the dam after the compacted layer thickness is increased.

APA, Harvard, Vancouver, ISO, and other styles

42

Behzodi, B., K. A. Andrianov, and A. F. Zubkov. "Modeling of thermal processes in construction of nonrigid pavements using bitumen concrete mixes." Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture 23, no. 2 (April 30, 2021): 146–61. http://dx.doi.org/10.31675/1607-1859-2021-23-2-146-161.

Full text

Abstract:

The remoteness of the construction site from the production base, large volumes of work, insufficient productivity of asphalt concrete plants for the preparation of hot asphalt concrete mixtures makes urgent the use of cold bitumen concrete mixes for the road construction. The preliminary mix preparation on the production sites with preservation of its properties for several months allows to increase the duration of the construction season. Purpose. Quality improvement of construction of non-rigid road surfaces using cold bitumen concrete mixes. Materials and methods. Models of road pavement structure based on cold bitumen concrete mixes are proposed to clarify the influence of the structural, climatic, technological and thermophysical properties of materials on the pavement quality. Research results. It is shown that the construction of road surfaces using cold bitumen concrete mixes even at positive ambient temperatures, does not provide the required surface quality. Conclusions. To improve the road paving quality using cold bitumen concrete mixes is necessary to heat the base before laying the cold mix. The heating temperature of the base depends on the layer thickness and ambient temperature.

APA, Harvard, Vancouver, ISO, and other styles

43

Benghida, Djamil. "Concrete as a Sustainable Construction Material." Key Engineering Materials 744 (July 2017): 196–200. http://dx.doi.org/10.4028/www.scientific.net/kem.744.196.

Full text

Abstract:

Sustainable concrete is nowadays one of the biggest challenges in the construction industry. Performance-based specifications for concrete can materially help meet this new challenge while supporting the concept of “sustainable construction”. Concrete can be found in almost every building structure, be it a pavement, a bridge, a house, a tunnel or a dam. Scholars nowadays are researching the best balanced mix in concrete in order to diminish its environmental impact, especially the cement component which is known for its high carbon emissions. This paper describes concrete durability and outlines what project specifications will significantly influence concrete performance, including its environmental impacts. The paper argues that, despite the sustainability of concrete, concerted efforts on the part of scientists and engineers are still necessary to improve the design of concrete in order to ensure their expected sustainable quality and reliability.

APA, Harvard, Vancouver, ISO, and other styles

44

Chen, Min. "The Construction of the Later Poured Band and Quality Control." Advanced Materials Research 926-930 (May 2014): 661–64. http://dx.doi.org/10.4028/www.scientific.net/amr.926-930.661.

Full text

Abstract:

Setting the late poured band is to solve different settlement between high-rise buildings and to settle the reinforced concrete body temperature--contraction stress. In addition, it effectively avoids the harmful cracks caused by the reinforced concrete body. So it is vital to set the late poured band and organize the correct construction. This paper aims at elaborating types of post pouring belt, construction preparation, construction technique, quality and so on.

APA, Harvard, Vancouver, ISO, and other styles

45

Diwan, Ravinder M., Shashikant Shah, and John Eggers. "Statistical Quality Control and Quality Assurance Evaluation of Structural and Paving Concrete." Transportation Research Record: Journal of the Transportation Research Board 1861, no. 1 (January 2003): 71–85. http://dx.doi.org/10.3141/1861-09.

Full text

Abstract:

The variability associated with the production, construction, and testing of structural and paving concrete is discussed. Data from more than 900 projects constructed from 1992 through 1999 representing more than 25,000 lots were evaluated. The data were collected from the Louisiana Department of Transportation and Development’s (DOTD’s) computerized Material Test Data Reporting System. The analysis indicated that ( a) overall price reductions were less than 0.2% for structural concrete and about 0.5% for paving concrete, ( b) the thickness of concrete cores is the major contributor to the overall reduction in the price of paving concrete, ( c) there was good control in the production and testing of structural concrete, and ( d) there was an increase in the nonuniformity of paving concrete acceptance criteria. Recommendations include a need to maintain better control of the variability of paving concrete through the application of control charts or unknown variability in the specification types and a need for continued evaluation for monitoring the overall quality control and quality assurance program of the DOTD.

APA, Harvard, Vancouver, ISO, and other styles

46

Wang, Zheng Jun, Mei Han, and Felix Zhao. "Applying Research on Testing Technique of High Performance Concrete." Advanced Materials Research 378-379 (October 2011): 226–29. http://dx.doi.org/10.4028/www.scientific.net/amr.378-379.226.

Full text

Abstract:

In order to master timely and accurately construction quality of high performance concrete, detection of compressive strength of high performance concrete can be tested non-destructively, rapidly and accurately. The paper did preliminary research on high performance concrete with redound method, furthermore, it established estimation model between rebound value and compressive strength. Experiment shows that rebound method can effetely test compressive strength of high performance concrete. Construction quality of Cement concrete structure or component can timely grasped in period of construction with the method.

APA, Harvard, Vancouver, ISO, and other styles

47

Sestak, Jan, Monika Utěšená, and Radka Pernicova. "Review of Factors Affecting the Quality of Architectural Concrete." Key Engineering Materials 808 (June 2019): 9–14. http://dx.doi.org/10.4028/www.scientific.net/kem.808.9.

Full text

Abstract:

The paper deals with the properties, quality and durability of the exposed concrete. The main part of this paper are characteristic of architectural (sometimes called visible or naked) concrete and the criterion of the quality evaluation of the performed work. This is mainly the colour balance of the subject area, the quantity and the size of the pores, the quality of the raw material and the surface structure. Achieving the quality of architectural concrete is considerably more technologically demanding compared with conventional concrete. This is reflected also in its cost. In conclusion, the problems of surface layers of architectural concrete are summarized. Especially environments can cause faster degradation, reducing the lifetime of the whole construction, but also pointing to one of the main problems in construction, which is technological discipline.

APA, Harvard, Vancouver, ISO, and other styles

48

Nath, Ranjit K., M. F. M. Zain, Abdul Amir Hassan Kadhum, and Rabiul Alam. "Mixed Photocatalyst for Sustainable Concrete Construction." Advanced Materials Research 626 (December 2012): 39–43. http://dx.doi.org/10.4028/www.scientific.net/amr.626.39.

Full text

Abstract:

An innovative approach to the material science has demonstrated that photocatalytic activity may be conferred to cement-based construction materials, such as concrete, mortars, paints, etc. Photocatalyst is needed for a cleaner environment and a better quality of life that leads to thoughts of a more eco-compatable use of light. Addition of photocatalytic materials to the RC structure during its construction phase could reduce the corrosion problem of RC materials. This material hinders calcium oxide to form acidic compound. In this study, cement-based mixed photocatalytic material has been presented, which would adjustable with RC material for enhancing oxidization process and reducing corrosion problem.

APA, Harvard, Vancouver, ISO, and other styles

49

Elsen, J., N. Lens, J. Vyncke, T. Aarre, D. Quenard, and V. Smolej. "Quality assurance and quality control of air entrained concrete." Cement and Concrete Research 24, no. 7 (1994): 1267–76. http://dx.doi.org/10.1016/0008-8846(94)90111-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Makul, Natt, Roman Fediuk, Mugahed Amran, Abdullah M. Zeyad, Sergey Klyuev, Irina Chulkova, Togay Ozbakkaloglu, Nikolai Vatin, Maria Karelina, and Afonso Azevedo. "Design Strategy for Recycled Aggregate Concrete: A Review of Status and Future Perspectives." Crystals 11, no. 6 (June 17, 2021): 695. http://dx.doi.org/10.3390/cryst11060695.

Full text

Abstract:

Currently, a number of disadvantages hampers the use of recycled concrete aggregates (RCA). The current review proves that concretes made with complete replacement of natural aggregate with RCA allow the production of high-quality concrete. One of the possibilities for improving concrete properties with RCA is the use of extended curing and pozzolanic materials with varying cement ratios. The potential use of RCA concretes is in the production of high-value materials that increase environmental and financial benefits. RCA have strong potential in the development of a new generation of concrete and stimulate economic activity in many countries in addition to optimizing natural resources. Economic benefits include minimal travel costs; cheaper sources of concrete than newly mined aggregates; reduction of the landfill area required for the placement of concrete waste; the use of RCA minimizes the need for gravel extraction, etc. The proposed strategy could be to sequentially separate demolition waste such as roof finishes, waterproof materials, interior and exterior materials, etc. Closing life cycles is the main approach used for efficient structures for the recycling and reuse of construction and demolition waste in the production and recovery of materials, especially when recycling and reusing materials. In the life cycle, the recycling of recovered materials allows them to be used for new construction purposes, avoiding the use of natural concrete aggregates. Government, design institutes, construction departments and project managers should be involved in the creation and use of RCA. In demolition and construction, the main players are the project owners. Their obligations, expectations and responsibilities must be properly aligned. For the past 20 years, recycled concrete aggregate from demolition and construction waste has been considered as an alternative to pure concrete in structural concrete to minimize the environmental impact of construction waste and demolition waste and the conversion of natural aggregate resources. It is now recognized that the use of RCA for the generations of concrete is a promising and very attractive technology for reducing the environmental impact of the construction sector and conserving natural resources. In the market, the selling price is not an obstacle for market applications of RCA, as there are scenarios in which their cost is lower than the cost of products made from conventional building materials. This is more of an acceptance factor in the market for recycled concrete aggregates. In this sector, the lack of identification, accreditation and uniform quality certification systems and their narrow application cause some marketing problems. With proper RCA preparation, concrete with standard physical and mechanical properties and performance characteristics can be obtained.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!