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Journal articles on the topic 'Concrete masonry'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Yang, Xu, Mingming Jia, Bin Chi, Mingzhi Wang, and Jianfeng Zheng. "A Mesoscale Approach for Concrete Block Masonry." Advances in Civil Engineering 2022 (July 21, 2022): 1–10. http://dx.doi.org/10.1155/2022/5018645.

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A comprehensive understanding of the concrete block masonry’s mesostructure on its macroscopic mechanical behavior is meaningful for modern masonry. The mesoscale numerical method provides an extremely powerful analyzing tool for this problem. However, it is still difficult to analyze the mesomodel efficiently due to a large number of operating processes caused by the components’ nonlinear mechanical properties. An efficient finite-element-method-based mesoscale approach for concrete block masonry was introduced in this paper. The benchmark test results obtained show that this approach is able

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2

Hao, Tong, and Dong Li. "Study on the Basic Mechanical Properties of Recycled Concrete Hollow Block Masonry." Applied Mechanics and Materials 438-439 (October 2013): 749–55. http://dx.doi.org/10.4028/www.scientific.net/amm.438-439.749.

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By the experimental studying on the basic mechanical properties of recycled concrete hollow block masonry, the compressive and shear behavior of recycled aggregate concrete hollow block masonry under different mortar strength were analyzed. Research indicated that the compressive and shear behavior of recycled aggregate concrete hollow block masonry was similar to that of ordinary concrete hollow block masonry. The normal formula was recommended to calculate the compressive strength of the masonry. The shear strength of the masonry was affected by the mortar strength. The shear strength calcul

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3

Yang, Xinlei, Hanchen Wu, Jianxin Zhang, and Hailiang Wang. "Shear Behavior of Hollow Concrete Block Masonry with Precast Concrete Anti-Shear Blocks." Advances in Materials Science and Engineering 2019 (April 24, 2019): 1–10. http://dx.doi.org/10.1155/2019/9657617.

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In order to improve the shear behavior of hollow concrete block masonry, precast concrete anti-shear blocks were proposed to enhance the shear strength of hollow concrete block masonry. Four groups of hollow concrete block masonry triplets with precast concrete anti-shear blocks were tested under shear loading, and their behaviors were compared with a control group. The results show that as the height of precast concrete anti-shear blocks increases, the shear strength of the masonry increases. The maximum shear strength of masonry triplets with precast concrete anti-shear blocks was 234.48 per

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4

Ahn, Namshik, Min Sook Kim, Seong-Eon Song, and Young Hak Lee. "Seismic performance of reinforced concrete frames retrofitted with inserted steel frame and adhered waved steel panel." Journal of Vibroengineering 18, no. 2 (2016): 1041–51. http://dx.doi.org/10.21595/jve.2015.16756.

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In this paper, two types of seismic retrofitting methods for reinforced concrete frames were suggested and examined through the cyclic loading tests: one is to insert a steel frame to existing partially masonry infilled concrete frame of the building after removing masonry from the concrete frame and the other is to adhere waved steel panels to the existing masonry fully infilled concrete frame. In order to evaluate validity of the suggested methods in seismic performance, five specimens were manufactured and tested: a bare concrete frame, a partially masonry infilled concrete frame, a masonry

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Grinfeld, G. I., Alexsandr S. Gorshkov, and Nikolay I. Vatin. "Tests Results Strength and Thermophysical Properties of Aerated Concrete Block Wall Samples with the Use of Polyurethane Adhesive." Advanced Materials Research 941-944 (June 2014): 786–99. http://dx.doi.org/10.4028/www.scientific.net/amr.941-944.786.

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This article deals with the strength and thermophysical test results made on the basis of the masonry samples of cellular autoclave curing concrete (aerated concrete blocks) with the use of polyurethane adhesive. Aerated concrete masonry walling with the use of polyurethane adhesive is indicated herein to be technologically feasible and economically viable. The major advantage of the masonry option under consideration lies in the following aspect: thermal conductivity of polyurethane adhesive used to fasten aerated concrete blocks in masonry walls is significantly less than thermal conductivit

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6

Ajmal, Muhammad Mubashir, Asad Ullah Qazi, Ali Ahmed, et al. "Structural Performance of Energy Efficient Geopolymer Concrete Confined Masonry: An Approach towards Decarbonization." Energies 16, no. 8 (2023): 3579. http://dx.doi.org/10.3390/en16083579.

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Geopolymer concrete is preferred over OPC due to its use of energy waste such as fly ash, making it more sustainable and energy-efficient. However, limited research has been done on its seismic characterization in confined masonry, highlighting a gap in sustainable earthquake-resistant structures. Our study compares the performance of alkali-activated fly-ash-based geopolymer concrete bare frame and confined masonry wall panels with conventional concrete. Experimental results showed that geopolymer concrete bare frame has 3.5% higher initial stiffness and 1.0% higher lateral load-bearing capac

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7

Redmond, Laura, Lawrence Kahn, and Reginald DesRoches. "Design and Construction of Hybrid Concrete-Masonry Structures Informed by Cyclic Tests." Earthquake Spectra 32, no. 4 (2016): 2337–55. http://dx.doi.org/10.1193/051615eqs070m.

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Reinforced concrete buildings with masonry infill are vulnerable in earthquakes primarily because the masonry walls often fail due to out-of-plane forces and can trigger soft-story collapses. In order to prevent these failures, many engineers in the Caribbean have partially reinforced the infill walls and connected them to the reinforced concrete frame. This forms a hybrid concrete-masonry structure. Hybrid concrete-masonry structures have the potential to improve the seismic performance of many structures across the globe, as they are an easy adaptation from traditional unreinforced masonry i

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Zavalis, Robertas, Bronius Jonaitis, and Gediminas Marčiukaitis. "NUMERICAL AND EXPERIMENTAL ANALYSIS OF GROUTED HOLLOW BLOCK MASONRY UNDER COMPRESSION / BLOKŲ SU BETONU UŽPILDYTOMIS TUŠTYMĖMIS GNIUŽDOMOJO MŪRO ĮTEMPIŲ BŪVIO SKAITINĖ IR EKSPERIMENTINĖ ANALIZĖ." Engineering Structures and Technologies 5, no. 2 (2013): 45–53. http://dx.doi.org/10.3846/2029882x.2013.811784.

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Highly hollow masonry units, which allow reducing the weight of masonry constructions and improving heat and sound insulation qualities, are commonly used in masonry construction. Filling the hollows with concrete, or concrete with light additives, results in complex masonry. Overall performance of such masonry is affected by initial stresses, which are caused by shrinkage deformations of different infill concrete and masonry units. Behaviour of infill concrete and concrete blocks is analysed by applying numerical detailed micro modelling. Experiments revealed that masonry deformations of bloc

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9

Xie, Xiang Zan. "Simulation Analysis for Reinforced Concrete Aqueduct of Lijia Pumping Station." Applied Mechanics and Materials 488-489 (January 2014): 605–8. http://dx.doi.org/10.4028/www.scientific.net/amm.488-489.605.

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Reinforced concrete masonry arch aqueduct is a common water diversion engineering structure. Aqueduct is decorated on the concrete cushion layer, cushion layer effects on masonry arch, the structures stress is uniform, carrying capacity is strong. This paper adopts finite element method to carry out force analysis for reinforced concrete masonry arch aqueduct of Lijia pumping station, considering aqueduct weight, water pressure and earthquake effect, etc. Researching stress and deformation distribution law of reinforced concrete masonry arch aqueduct.

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10

Yuan, Hanquan, Lihua Zhu, Yixuan Wang, and Fengjian Zhang. "Mechanical and Thermal Properties of RCB Masonry Containing Three Rows of Holes." Advances in Materials Science and Engineering 2021 (July 15, 2021): 1–13. http://dx.doi.org/10.1155/2021/5553406.

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In order to promote and apply the structures of the recycled concrete block (RCB) masonry, the thermal and mechanical properties of the recycled concrete specimens were tested in this study. The RCB can meet load-bearing and seismic requirements and was prepared through experiments. Concurrently, the mechanical property experiment was conducted on the RCB masonry, and then its failure process and mode were discussed. In addition, a thermal property test was completed on the RCB wall, and the difference in the thermal properties of single-row hole, three-row hole, and solid blocks was analyzed

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Vasil'ev, M., V. Belavskiy, and O. Tkachenko. "ANALYSIS OF THE STRESS-STRAIN STATE OF MASONRY MADE OF AERATED CONCRETE BLOCKS REINFORCED WITH COMPOSITE POLYMER MESHES." Construction and industrial safety, no. 36 (June 23, 2025): 31–36. https://doi.org/10.29039/2413-1873-2025-36-31-36.

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The article presents modeling cellular concrete masonry reinforced with composite meshes. Local numerical models were verified by physical experiments. Using three-dimensional models, an assessment of impact on bearing capacity of reinforcing the masonry with composite polymer meshes was made. Subject: numerical modeling of stress-strain state for buildings made of cellular concrete masonry. Materials and methods: the research was carried out on numerical models in the LIRA-SAPR software using the finite element method in a physically nonlinear formulation Results: using local models, nonlinea

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12

Wang, Qi Fang. "Analysis of Regression for Strength Index of Concrete Performed Brick Masonry." Advanced Materials Research 639-640 (January 2013): 803–6. http://dx.doi.org/10.4028/www.scientific.net/amr.639-640.803.

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Based on the data of the strength tests of concrete performed brick masonry，the basic strength formulas of concrete performed brick masonry are obtained. Through regressive analysis, it will be coherent to the compressive strength of concrete performed brick masonry to introduce the adjustment coefficient of mortar contrast to the Code for Design of Masonry Structures of China. The shear strength, bending strength along straight joint and bending strength along straight joint are uniform with the Code for Design of Masonry Structures of China.

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13

Tena, A., A. Liga, A. Pérez, and F. González. "Proposal for improved mixes to produce concrete masonry units with commonly used aggregates available in the Valley of Mexico." Revista ALCONPAT 7, no. 1 (2017): 36–56. http://dx.doi.org/10.21041/ra.v7i1.170.

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Proposal for improved mixes to produce concrete masonry units with commonly used aggregates available in the Valley of MexicoABSTRACTIn this paper, a proposal is done to update the masonry index compressive strength design value f*m for solid concrete masonry units for the masonry guidelines of Mexico´s Federal District Code (NTCM-2004). Solid units were made by taking into account the characteristics of the most commonly used raw materials available in the Valley of Mexico to fabricate such units in the Metropolitan Area of Mexico City. Different tests were conducted for both raw materials an

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14

Li, Ke, Guo Ping Chen, and Lan Tang. "Analysis in Seismic Behaviors of the Masonry-Concrete Shear Wall." Advanced Materials Research 163-167 (December 2010): 1928–34. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.1928.

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The masonry-concrete shear wall is a kind of new composite structure developed from the masonry wall, and the seismic behavior of it is better than the traditional one. The article used ANSYS to do the time history analysis for the traditional masonry wall and masonry-concrete shear wall with different characteristic stiffness coefficients, different installation modes of shear walls.The calculation data not only proved researches in reasonable value of characteristic stiffness coefficients, but also about the effects in the seismic ability of different masonry-concrete shear walls installatio

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15

Drobiec, Łukasz, Wojciech Mazur, and Tomasz Rybarczyk. "Analysis of confined masonry with Strut and Tie models." MATEC Web of Conferences 323 (2020): 02002. http://dx.doi.org/10.1051/matecconf/202032302002.

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Strut & Tie (S-T) models are used quite commonly for the analysis of reinforced concrete structures and in the calculation of masonry structures. Creating the S-T model of the confined masonry is slightly different from models of reinforced concrete or models of classic masonry structures. These models should take into account different stiffness of concrete and masonry. This article proposes a Strut & Tie model for the analysis of confined masonry. The results of calculations were compared with the results of tests of full scale masonry walls with and without opening. Good compliance

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16

Singh, H., and N. Cooke. "Ductile behaviour of reinforced masonry columns." Bulletin of the New Zealand Society for Earthquake Engineering 27, no. 2 (1994): 83–95. http://dx.doi.org/10.5459/bnzsee.27.2.83-95.

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This paper presents the results of an experimental investigation into the strength and level of ductile performance of two reinforced concrete masonry columns and one reinforced clay brick column by Singh [1993]. The results show that strength of reinforced concrete and clay masonry can be predicted by using full cross-section dimensions. Columns constructed from concrete masonry behave in a ductile manner but clay masonry columns behave in a very limited ductile manner.

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17

Marčiukaitis, Gediminas. "SHRINKAGE INFLUENCE ON STRESS-STRAIN STATE OF COMPOSITE MASONRY MEMBERS/SUSITRAUKIMO DEFORMACIJŲ ĮTAKA KOMPLEKSINIŲ MŪRO ELEMENTŲ ĮTEMPIŲ IR DEFORMACIJŲ BŪVIUI." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 7, no. 3 (2001): 177–83. http://dx.doi.org/10.3846/13921525.2001.10531721.

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Composite masonry structures consists of various units (bricks or ceramic, concrete and other blocks) masonry and concrete or reinforced concrete layers. Analysis has shown that in most cases deformation properties of masonry, concrete and reinforced concrete are different. There is a big difference in modulus of elasticity and shrinkage deformations. Methods for determination of shrinkage and modulus of elasticity for different types of masonry and reinforced concrete have been presented. Analysis of distribution of stresses and deformations in layers has shown that for a given difference of

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18

Pavlu, Tereza, Kristina Fortova, Jakub Divis, and Petr Hajek. "The Utilization of Recycled Masonry Aggregate and Recycled EPS for Concrete Blocks for Mortarless Masonry." Materials 12, no. 12 (2019): 1923. http://dx.doi.org/10.3390/ma12121923.

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The main aim of this paper is to carry out the environmentally based enhancement of a concrete mixture containing recycled materials whilst considering natural resource consumption as well as mechanical and thermal property levels. The developed concrete is intended to be used in mortarless masonry wall structures. Ten concrete mixtures with different types and replacement rates of recycled masonry aggregate and recycled expanded polystyrene were prepared, and their mechanical and thermal properties were experimentally investigated. It was found that the use of recycled masonry aggregate led t

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Suleymanov, K., I. Pogorelova, and I. Ryabchevskiy. "INCREASING THE THERMAL UNIFORMITY OF WALLS MADE OF CELLULAR CONCRETE BLOCKS." Bulletin of Belgorod State Technological University named after. V. G. Shukhov 7, no. 5 (2022): 17–24. http://dx.doi.org/10.34031/2071-7318-2022-7-5-17-24.

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The development of effective protecting structures is currently one of the most popular areas in the construction industry. Masonry made of aerated concrete blocks is used in conditions of ensuring energy efficiency and environmental safety in the construction of civil buildings as enclosing structures. It has high thermal protection properties. The issue of filling through seams of aerated concrete masonry is acute, since adhesive and cement-sand mortars in masonry have low thermal conductivity and are temperature bridges. The authors have developed a two-row energy-efficient wall masonry mad

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20

Xiao, Li Guang, Rui Bo Li, Cun You Yan, and Guan Jie Li. "Study on Special Thermal-Insulation Masonry Mortar for the North Cold Regions Autoclaved Aerated Concrete." Applied Mechanics and Materials 174-177 (May 2012): 1498–501. http://dx.doi.org/10.4028/www.scientific.net/amm.174-177.1498.

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Because the difference between the autoclaved aerated concrete and ordinary masonry mortar with thermal conductivity is too large, also easy to cause the bricking-up appearance the cold bridge and even the phenomenon of condensation, the author have study special thermal-insulation masonry mortar for autoclaved aerated concrete, about solving between the aerated concrete and ordinary mortar problem filling cracks, it is more important to resolve the big difference between the thermal conductivity, improving the insulation properties of aerated concrete special mortar. The performance as per sp

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21

He, Xi Xi, and Ye Lin. "Research on Compressive Strength of Grouted Dry-Stack Concrete Block Masonry." Applied Mechanics and Materials 638-640 (September 2014): 202–7. http://dx.doi.org/10.4028/www.scientific.net/amm.638-640.202.

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Compressive strengths of full-grouted dry-stack concrete block masonry were tested. Contribution of block and grouted concrete in carrying capacity of the masonry were analyzed through compressive strength data of 18 specimens. Related masonry capacity formulas were recommended accordingly.

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Zhao, Kao Zhong, and Zhi Feng Zhu. "Experimental Study on Behavior of the Channel-Masonry-Concrete Composite Structures." Applied Mechanics and Materials 578-579 (July 2014): 1251–56. http://dx.doi.org/10.4028/www.scientific.net/amm.578-579.1251.

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channel - masonry - concrete composite structures underpinning is a new type of underpinning technology, the two channel steel and the concrete of compression flange and the masonry between the channel combined into an overall flexural members, it can used in masonry structure underpinning the transformation of the wall, it has simple construction, safety and reliability, the combination of large carrying capacity and other characteristics. Through this combination of three members in bending tests, we can get, reinforced by setting off key, channel, masonry and concrete can form a combination

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Peng, Peng Fei, Xian Ming Qin, and Yu Sheng Wu. "Performance Study on Masonries of Different Aerated Concrete Blocks." Key Engineering Materials 633 (November 2014): 299–302. http://dx.doi.org/10.4028/www.scientific.net/kem.633.299.

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The masonries with a square of 2m×3m of 3 different aerated concrete blocks were built respectively, and plastered with plastering mortar. The shrinkage-cracking property and other performances of different aerated concrete masonries were studied in natural condition. The results showed that, there were less cracks and smaller crack width in the masonry of aerated concrete with low water absorption, the condition of aerated concrete cracking can be improved by plastering with plastering mortar; the shrinkage of aerated concrete block masonry with low water absorption is smaller, the shrinkage

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Vitorio Junior, Paulo Cezar, Víctor Yepes, and Moacir Kripka. "Comparison of Brazilian Social Interest Housing Projects Considering Sustainability." International Journal of Environmental Research and Public Health 19, no. 10 (2022): 6213. http://dx.doi.org/10.3390/ijerph19106213.

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Considering the importance of the development of new housing projects, the purpose of this research is to provide a model oriented to the identification of the most sustainable alternative in single-family housing projects of social interest from the perspective of life cycle thinking (LCT) and the analytical hierarchical process (AHP). A ceramic masonry project and a concrete masonry project were evaluated. In the environmental dimension, the results showed that the ceramic masonry project had more significant environmental impacts and greater damage to human health and the availability of re

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Hu, Da Lin, Long Gang Chen, and Feng Chen. "Test Study of Compressive Strength of High-Strength Stone Masonry." Applied Mechanics and Materials 71-78 (July 2011): 3794–99. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.3794.

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Stone masonry with micro-aggregate concrete joints has been widely used in long span arch bridges in China. However, the mechanical properties of this kind of high-strength masonry have been seldom studied. This paper presents compressive strength test study of eight groups of masonry specimens, which consist of C30 or C40 micro-aggregate concrete joints and five kinds of dressed stone blocks. The masonry mechanical behavior is described and test results are analyzed. An empiric formula of the masonry compressive strength is obtained. Finally, design value of masonry compressive strength is as

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Liu, Chao, Chao Zhu, Guoliang Bai, Zonggang Quan, and Jian Wu. "Experimental Investigation on Compressive Properties and Carbon Emission Assessment of Concrete Hollow Block Masonry Incorporating Recycled Concrete Aggregates." Applied Sciences 9, no. 22 (2019): 4870. http://dx.doi.org/10.3390/app9224870.

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In this paper, the compressive strength experiment for three groups of recycled aggregate concrete (RAC) specimens with different replacement ratios of recycled aggregate (0%, 50%, 100%) was carried out. The mechanism of the block and mortar properties on the compressive strength of block masonry was investigated by means of a static loading test. The formula for calculating the compressive strength of a recycled concrete block was obtained based on experimental data. Moreover, the global warming potential (GWP) of recycled aggregate concrete (RAC) block masonry was evaluated by life cycle ass

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B.K., DZHAMUEV. "Increasing the Monolithic Nature of Masonry Made of Cellular Concrete Blocks by Using Polyurethane Foam Glue as a Masonry Mortar." Stroitel'nye Materialy 786, no. 11 (2020): 4–9. http://dx.doi.org/10.31659/0585-430x-2020-786-11-4-9.

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This study is a continuation of previously published work [1]. The results of experimental determination of the strength of normal adhesion (under axial tension) in masonry made of autoclave–hardened cellular concrete blocks of compressive strength classes B1,5-B3,5 on cement mortars and polyurethane foam adhesives are presented. The tests were carried out in the laboratory of the Department “Reinforced Concrete and Stone Structures” of the Moscow State University of Civil Engineering (National Research University). The experiment was carried out on samples-cubes with a size of 150x150x150 mm,

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Pokorný, Jaroslav, Radek Ševčík, Jiří Šál, Lucie Zárybnická, and Jaroslav Žák. "Lightweight Concretes with Improved Water and Water Vapor Transport for Remediation of Damp Induced Buildings." Materials 14, no. 19 (2021): 5902. http://dx.doi.org/10.3390/ma14195902.

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Most of the historical and old building stock in Europe are constructed from masonry, when brick, stones, or their combination are bound with traditional mortars. Rising damp, due to accompanying effects, is the main factor influencing the quality of indoor climate as well as having an important impact on the durability of masonry structures. In this study, new types of lightweight concrete with waste aggregate content as a suitable material for remediation of damp damaged masonries were designed and tested. Alternative aggregate served as silica sand substitution in the range of 0–100 vol.%.

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Hess, Jennifer A., Laurel Kincl, Tal Amasay, and Peter Wolfe. "Ergonomic evaluation of masons laying concrete masonry units and autoclaved aerated concrete." Applied Ergonomics 41, no. 3 (2010): 477–83. http://dx.doi.org/10.1016/j.apergo.2009.10.003.

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Aris Parsekian, Guilherme, Jairo Borges Ferreira Júnior, Gláucia Maria Dalfré, and Roberto Marcio da Silva. "Flatjack application on existing hollow concrete block masonry." MATEC Web of Conferences 403 (2024): 04001. http://dx.doi.org/10.1051/matecconf/202440304001.

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This work aims to validate new flatjack in evaluating existing hollow concrete block masonry. The flatjack method is used as a non-destructive on-site test in masonry structures to obtain the actual stress-strain curve of masonry and estimate its strength. This method is already internationally standardized by ASTM and RILEM standard codes. However, most of the studies, standards, and available jacks refer to masonry with solid units, such as bricks and stones. The research adapted the deformability test performed on hollow block walls with the double flatjack to estimate the elasticity module

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Zhang, Feng Jian, Guo Liang Bai, Zong Gang Quan, and Long Pan. "Experimental Research on Shear Strength of Recycled Concrete Block Masonry." Advanced Materials Research 374-377 (October 2011): 1623–26. http://dx.doi.org/10.4028/www.scientific.net/amr.374-377.1623.

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Recycled concrete hollow blocks are made with recycled fine aggregates and recycled coarse aggregates, so recycled block is a kind of green environmental material and can be used for masonry structure. Shear property is one main mechanical property of recycled concrete hollow block masonry. From the shear test of masonry, the shear strength has been researched. At the same time the rule calculated results and test results are compared and analyzed, conclude the design value of shear strength in this paper. The test results show that recycled concrete block masonry has better shear strength, so

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Chen, Xu Yong, and Xiao Xie. "Research on Masonry Arch-Bridges Reinforcement and Reconstruction Methods." Applied Mechanics and Materials 501-504 (January 2014): 1152–56. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.1152.

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We analyze existing masonry arch-bridges and corresponding reinforcement methods in this paper and bring about the method of using strip-shaped outer-wrap reinforced concrete with chemically planted bar to improve the new and old concretes cooperative work so as to strengthen the wholeness and improve impermeability of the bridge. We also compare two experiments on one actual bridge of 30 cm strip-shaped outer-wrap reinforced concrete in the main arch ring and 20 cm global outer-wrap reinforcement concrete, of which the data shows the superiority of strip-shaped outer-wrap reinforced concrete

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Chonratana, Yossakorn, and Vuttichai Chatpattananan. "A Damage Index for Assessing Seismic-Resistant Designs of Masonry Wall Buildings Reinforced with X-Bracing Concrete Frames." Applied Sciences 13, no. 23 (2023): 12566. http://dx.doi.org/10.3390/app132312566.

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In this paper, a suitable damage index is demonstrated to assess the seismic-resistant design of masonry wall buildings reinforced with double x-bracing concrete frames. As a criterion indicative of the damage level that might occur after an earthquake, the damage index can be calculated by using analytic results, by using the Park–Ang formula on masonry wall buildings reinforced with concrete structures, and by adjusting the index values in accordance with the results of the analysed models. The data used in this study are collected from the results of four-storey concrete structures with mas

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Yang, Wei Jun, Ning Guo, and Hai Dian Zhang. "Finite Element Study on Influence of Ring Beam at Top Window Sill Elevation on Temperature Effect of Masonry." Applied Mechanics and Materials 204-208 (October 2012): 4110–14. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.4110.

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This paper mainly studies on the problem of the temperature cracks of the concrete perforated brick masonry structure by finite element model simulation and the stress distribution of masonry at the top window sill elevation under temperature difference effect. Analysis the influence of setting ring beam at the top window sill elevation on temperature stress of masonry, Summed up some measures about control and prevention of masonry temperature cracks at the top window sill elevation, it can be referenced for concrete perforated brick masonry structure design and construction.

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Hu, Da Lin, Feng Cheng, and Long Gang Chen. "Test Study of Shear Strength of High Strength Stone Masonry." Key Engineering Materials 452-453 (November 2010): 365–68. http://dx.doi.org/10.4028/www.scientific.net/kem.452-453.365.

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In China many long span stone arch bridges were built in the last 5 decades, most of these bridges were built with micro-aggregate concrete joint masonry. However, the mechanical properties of this kind masonry have been seldom studied. Based on 5 groups of specimens with C30 or C40 micro-aggregate concrete joints and dressed blocks, shear strength of the masonry is tested and analyzed, friction coefficients and empiric formulas of shear strength of the masonry are presented in this paper, design value of shear strength of the masonry is assessed and discussed.

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Sutandar, Erwin, Asep Supriyadi, and Cek Putera Andalan. "Effect of Cement Variation on Properties of CLC Concrete Masonry Brick." MATEC Web of Conferences 159 (2018): 01008. http://dx.doi.org/10.1051/matecconf/201815901008.

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One of the methods used to reduce the weight of a construction is by reducing the weight of the walls of the building. In such a case, a wall made of red brick has a volume weight of 1,500–2,000 kg/m3, and concrete masonry bricks made of CLC have a volume weight of 400–1,800 kg/m3. So, in comparison, concrete masonry bricks have a volume weight that is ≤ 50% of that of red brick. In the manufacturing of concrete masonry bricks, one variant is CLC (Cellular Lightweight Concrete), produced using a mixture of cement, sand, chemical admixture and water, with the filler material in the form of air

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Hrischev, Lachezar, and Ivan-Aleksandar Conev. "Resistance of plastic anchors for fixing on ETICS in different types of base materials." IOP Conference Series: Materials Science and Engineering 1323, no. 1 (2024): 012006. https://doi.org/10.1088/1757-899x/1323/1/012006.

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Abstract The durability of external thermal insulation composite systems and their resistance to wind load mainly depends on the resistance of plastic anchors by means of which the systems are fixed to the substrate. A large part of the facade walls are made of reinforced concrete and various types of masonry units. This article presents an experimental study of the resistance of plastic anchors for ETICS, with different types of base materials, typical of the facade walls of buildings implemented in Bulgaria. The resistance of anchors installed in base materials with different characteristics

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S., Ramya M., and Shashishankar A. "Experimental Study on the Compressive Strength of Masonry Blocks with Geopolymer Mortar." International Journal of Research and Scientific Innovation X, no. XI (2023): 336–45. http://dx.doi.org/10.51244/ijrsi.2023.1011028.

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Masonry units are the major building materials used in construction work. There are several masonry units available in the market today. Some of the widely used masonry units are burnt clay bricks, concrete blocks, fly ash blocks, compressed stabilized soil/earth blocks, geopolymer mud blocks, geopolymer concrete blocks, and so on. These blocks are used for the construction of load bearing structure. To bond two masonry units together, mortar plays a vital role. Fly ash based geopolymer mortar has been used in this study. The strength of masonry units namely bricks, concrete blocks and stabili

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Bagnoli, Matteo, Ernesto Grande, and Gabriele Milani. "Reinforced Concrete Infilled Frames." Encyclopedia 2, no. 1 (2022): 473–85. http://dx.doi.org/10.3390/encyclopedia2010030.

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Masonry-Infilled Reinforced Concrete Frames are a very widespread structural typology all over the world for civil, strategic or productive uses. The damages due to these masonry panels can be life threatening to humans and can severely impact economic losses, as shown during past earthquakes. In fact, during a seismic event, most victims are caused by the collapse of buildings or due to nonstructural elements. The damage caused by an earthquake on nonstructural elements, i.e., those not belonging to the actual structural body of the building, is important for the purposes of a more general de

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Dias, José Miranda. "Damage of Infill Masonry Walls due to Vertical Loads in Buildings with Reinforced Concrete Structure." WSEAS TRANSACTIONS ON APPLIED AND THEORETICAL MECHANICS 18 (April 4, 2023): 32–49. http://dx.doi.org/10.37394/232011.2023.18.4.

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Buildings are subjected to deformations of their reinforced concrete structure due to vertical loads that can lead, in certain cases, to the significant cracking of the unreinforced masonry (URM) infill walls, therefore requiring the development of specific knowledge of these types of deformations in order to minimise them. Aiming the evaluation of buildings with reinforced concrete structures subjected to vertical deformations, the mechanical characteristics of their infill masonry walls, as well as of their interface with the supporting concrete elements, are here analysed. The basic compres

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Haach, V. G., G. Vasconcelos, and Paulo B. Lourenço. "Assessment of the Flexural Behavior of Concrete Block Masonry Beams." Materials Science Forum 636-637 (January 2010): 1313–20. http://dx.doi.org/10.4028/www.scientific.net/msf.636-637.1313.

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This paper focus on the experimental flexural behavior of masonry beams. In the sequence of the development of a novel structural solution for reinforced masonry walls at University of Minho, different possibilities for the construction of lintels with concrete block masonry have been tested. Reinforced concrete beams with three and two hollow cell concrete blocks and with different reinforcement ratios have been built and tested in a four point loading test configuration. It was clear that horizontal bed joint reinforcement increased the ultimate flexure capacity as well as the ultimate defle

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Lou, Ya Fei, Bai Tao Sun, and Xuan Zhang. "The Masonry Crack Propagation Simulation Based on LS-DYNA." Advanced Materials Research 1021 (August 2014): 105–10. http://dx.doi.org/10.4028/www.scientific.net/amr.1021.105.

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Due to the development of the computer hardware and the difficulties in determining the constitutive relation, it is difficult to research the crack propagation of large-scale masonry with the finite elements analysis method. The paper analyses the single storey concrete block masonry experimental model with the software LS-DYNA, using winfrith concrete material model instead of masonry material. And the calculated results were compared with the test results. The comparison indicates that the crack propagation of masonry can be simulated better with winfrith material model, which can be used i

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Shoaib, Muhammad, Amjad Naseer, Khan Shahzada, Akhtar Naeem Khan, and M. Ashraf. "Earthquake Disaster Mitigation through Retrofitting of Unreinforced Concrete Block Masonry Buildings." Advanced Materials Research 255-260 (May 2011): 2627–31. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.2627.

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This paper presents an experimental study on the improvement of unreinforced block masonry buildings against earthquake disasters. Unreinforced concrete block masonry piers have been tested for lateral strength before and after retrofitting. Welded mesh and injection of cement grout techniques have been used for piers retrofitting. The analysis of experimental results demonstrates that proper retrofitting can decrease the risk to concrete block masonry buildings in future scenario earthquakes. Retrofitting increases not only the overall strength of unreinforced masonry piers but also the ducti

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Rico, Saul, Roshanak Farshidpour, and Fariborz M. Tehrani. "State-of-the-Art Report on Fiber-Reinforced Lightweight Aggregate Concrete Masonry." Advances in Civil Engineering 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/8078346.

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Masonry construction is the most widely used building method in the world. Concrete masonry is relatively low in cost due to the vast availability of aggregates used within the production process. These aggregate materials are not always reliable for structural use. One of the principal issues associated with masonry is the brittleness of the unit. When subject to seismic loads, the brittleness of the masonry magnifies. In regions with high seismic activity and unspecified building codes or standards, masonry housing has developed into a death trap for countless individuals. A common approach

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Guo, Zhang Gen, Wei Min Sun, Jian Wang, Jian Long Chen, and Yi Fan Xu. "Experimental Study on Seismic Behavior of Recycled Concrete Perforated Brick Masonry." Advanced Materials Research 163-167 (December 2010): 1879–82. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.1879.

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In order to investigate the seismic performance of recycled concrete perforated brick masonry, an experiment was conducted on three specimens of recycled concrete perforated brick walls subjected to low frequency reversed cyclic load test. The loading process, failure mechanism, ultimate bearing capacity was studied. The seismic behavior such as hysteretic characteristics, backbone curve, ductility, energy dissipation capacity were analyzed too. The test results show that the seismic performance of recycled concrete perforated brick masonry is similar to those of ordinary concrete perforated b

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Gu, Song, Guo Ping Chen, and Shui Wen Zhu. "Mechanical Analysis of the Recycled Concrete Brick Masonry Wall under In-Plane Load." Advanced Materials Research 250-253 (May 2011): 278–82. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.278.

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The purpose of this paper was to investigate the mechanical behavior and failure mode of recycled concrete brick masonry wall under cycling in-plane load. These models of masonry walls were constructed in the laboratory and experimented under in-plane cycling load. The masonry wall was made of recycled concrete bricks joined by mortar, with gypsum lining on both faces. A simulation based on the experiment was carried out using the finite element software ANSYS. In the proposed FE model, the recycling concrete bricks and joints were modeled separately, allowing for nonlinear deformation charact

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Ramaglia, Giancarlo, Francesco Russo Spena, Gian Piero Lignola, and Andrea Prota. "Two Parameters Confinement Model for Clay Brick Masonry." International Journal of Computational Methods 17, no. 05 (2019): 1940010. http://dx.doi.org/10.1142/s0219876219400103.

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Modeling of masonry confinement has been usually derived from concrete confinement, which was deeply tested in the last decades. However concrete and masonry have some crucial differences, e.g., ordinary concrete performance can be usually fully defined by the cylindrical compressive strength, while masonry does not. In the present work, a failure criterion is considered on a solid mechanics base. Such criteria are useful not only to introduce non-uniform stress states, as those developed in non-axisymmetric confined elements, but also to be implemented in FEM. The validity of the adopted fail

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Trad, Ayman, Hassan Ghanem, Nivine Abbas, and Ziad Hamdan. "THIN LAYER CONCRETE BLOCKWORK IN COMPRESSION: AN EXPERIMENTAL ANALYSIS." Engineering Structures and Technologies 7, no. 2 (2015): 91–96. http://dx.doi.org/10.3846/2029882x.2015.1115377.

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The compressive strength of concrete block masonry is dependent upon the unit compressive strength, the type of unit, the mortar and the form of masonry construction (Mirza et al. 1995). The design codes allow masonry compressive strength to be established (or better: estimated) by calculation, from tests, or from tabulated values. In this way the current European masonry standard EN 1996: Part 1-1 (LST EN 1996-1-1) tabulates the masonry strength for concrete blocks with thin layers of mortar. In France, doubts exist on the validity of these tabulated values for the blocks made with lightweigh

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Wang, Yin, Zhi Jian Shi, and Ya Di Hu. "The Impact of Cracks on Different Age of Concrete Small-Sized Hollow Block Masonry." Applied Mechanics and Materials 204-208 (October 2012): 3303–6. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.3303.

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In the latter part of concrete small-sized hollow block masonry cracks after using many reasons, including the design factors that are not in place, the material factors, construction factors, climate, natural conditions, factors, etc., in which the age of c concrete small-sized hollow block length of cracks in the masonry of the impact is different. Cracks in the masonry structure will cause adverse effects, affecting the use of construction and durability, this paper field test, to identify non-instars of concrete small-sized hollow block masonry cracks on impact. To reduce or prevent age of

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Ponomarev, Oleg I., Aleksandra Yu Dozorova, and Mikhail A. Mukhin. "Assessment of the effect of moisture on the strength of concrete and ceramic masonry wall products." Concrete and Reinforced Concrete 620, no. 1 (2024): 14–21. http://dx.doi.org/10.37538/0005-9889-2024-1(620)-14-21.

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Introduction. The material of the article considers the strength characteristics of ceramic and concrete masonry products, the operation of which is carried out in difficult conditions. The analysis of domestic and foreign publications and sources carried out in this work, including the results of previously performed experiments and field studies, showed that the values of the tensile strength of concrete and ceramic masonry products largely depend on moisture saturation.  Aim. When analyzing previously performed works, it was found that moisture saturation and operating condition

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