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Artículos de revistas sobre el tema "Concrete construction Standards Australia"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 29 de enero de 2023

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1

Rossi, Laura, Luiz Miranda de Lima, Yubo Sun, Frank Dehn, John Provis, Guang Ye, and Geert De Schutter. "Future perspectives for alkali-activated materials: from existing standards to structural applications." RILEM Technical Letters 7 (January 12, 2023): 159–77. http://dx.doi.org/10.21809/rilemtechlett.2022.160.

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The production of cement and concrete contributes significantly to global greenhouse gas emissions. Alkali-activated concretes (AACs) are a family of existing alternative construction materials that could reduce the current environmental impact of Portland cement (PC) production and utilisation. Successful applications of AACs can be found in Europe and the former USSR since the 1950s and more recently in Australia, China and North America, proving their potential as construction materials. However, their utilisation is limited presently by the lack of normative and construction guidelines. Ra

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2

Elbasha, Nuri Mohamed. "LIGHTER HIGH STRENGTH CONCRETE BEAM." Scientific Journal of Applied Sciences of Sabratha University 2, no. 2 (September 27, 2019): 17–26. http://dx.doi.org/10.47891/sabujas.v2i2.17-26.

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High strength concrete (HSC) has been used extensively in civil construction projects worldwide because it reduces the cross section and the weight of long construction members. In recent years a marked increase in the use of High Strength Concrete (HSC) has been evident in Australian building construction despite the fact that the current Australian design standard provides no design rules for such a material. Very limited information on the properties of HSC and its design and construction processes are available in Australia, although in recent times many studies have been undertaken to pro

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3

Gunasekara, Chamila, Charitha Seneviratne, David W. Law, and Sujeeva Setunge. "Feasibility of Developing Sustainable Concrete Using Environmentally Friendly Coarse Aggregate." Applied Sciences 10, no. 15 (July 28, 2020): 5207. http://dx.doi.org/10.3390/app10155207.

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Quarry aggregate reserves are depleting rapidly within Australia and the rest of the world due to an increasing demand for aggregates driven by expansion in construction. The annual production of premix concrete in Australia is approximately 30 million cubic meters, while 3–5% of concrete delivered to site remains unused and is disposed of in landfill or crushing plants. The production of coarse aggregates using this waste concrete is potentially a sustainable approach to reduce environmental and economic impact. A testing program has been conducted to investigate mechanical performance and pe

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4

Shamsaei, Ezzatollah, Owen Bolt, Felipe Basquiroto de Souza, Emad Benhelal, Kwesi Sagoe-Crentsil, and Jay Sanjayan. "Pathways to Commercialisation for Brown Coal Fly Ash-Based Geopolymer Concrete in Australia." Sustainability 13, no. 8 (April 14, 2021): 4350. http://dx.doi.org/10.3390/su13084350.

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Utilising geopolymer as a construction material has gained institutional and commercial interest over the past decade, due to its favourable emissions profile as an alternative to carbon-intensive Ordinary Portland Cement-based concrete, which currently accounts for around 7% of global carbon emissions. While significant research has been performed into the material properties of geopolymer, the commercialisation of the technology is still in its infancy, and several key barriers require rectification to facilitate more widespread adoption. This article analyses the current state of geopolymer

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5

Azman, Mohamed Nor Azhari, Mohd Sanusi S. Ahamad, Taksiah A.Majid, and Mohd Hanizun Hanafi. "Status of Industrialized Building System Manufacturing Plant in Malaysia." Journal of Civil Engineering, Science and Technology 2, no. 2 (December 1, 2011): 8–16. http://dx.doi.org/10.33736/jcest.89.2011.

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The trend construction industry have move from project based to product based in term of long term investment. Industrialized building system (IBS) in Malaysia is defined as a construction system where components are manufactured at factories on or off site, transported and then assembled into a structure with minimum work. IBS also is known as off-site construction or prefabrication. Thus, IBS have the similarity drive and challenge with the United States (US), United Kingdom (UK) and Australia; and among the factors are skilled craft worker, fast track completion, cost and transportation. Un

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6

John, Keerthana, Mahmud Ashraf, Matthias Weiss, and Riyadh Al-Ameri. "Experimental Investigation of Novel Corrugated Steel Deck under Construction Load for Composite Slim-Flooring." Buildings 10, no. 11 (November 18, 2020): 208. http://dx.doi.org/10.3390/buildings10110208.

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Trapezoidal-shaped thin-walled metallic profiled sheets are used in composite floor construction to enable rapid construction and reduce reinforcement and formwork requirements in concrete casting. However, relevant literature reported the early failure of steel sections due to the buckling and shear of existing trapezoidal and re-entrant decking profiles. There are also limitations regarding design rules for composite flooring systems. Current work aims to develop a new type of composite top-hat section for possible use in composite slim-floor construction. Sinusoidal metallic corrugated shee

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7

Fatahi, Behzad, and S. Hamid Reza Tabatabaiefar. "Effects of Soil Plasticity on Seismic Performance of Mid-Rise Building Frames Resting on Soft Soils." Advances in Structural Engineering 17, no. 10 (November 2014): 1387–402. http://dx.doi.org/10.1260/1369-4332.17.10.1387.

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In this study, the effects of Plasticity Index (PI) variation on the seismic response of mid-rise building frames resting on soft soil deposits are investigated. To achieve this goal, three structural models including 5, 10, and 15 storey buildings are simulated in conjunction with a clayey soil representing soil class Ee according to the classification of AS1170.4–2007 (Earthquake actions in Australia) and then varying the Plasticity Index. Structural sections of the selected frames were designed according to AS3600–2009 (Australian Standard for Concrete Structures) after undertaking dynamic

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8

Wong, Koon Wan, and Vanissorn Vimonsatit. "Determination of Shear Capacity for Load Rating of Concrete Bridges to AS 5100.7-2017." Infrastructures 7, no. 11 (November 17, 2022): 156. http://dx.doi.org/10.3390/infrastructures7110156.

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According to Modified Compression Field Theory (MCFT), the ultimate shear capacity of a reinforced concrete section depends on load effects (shear, moment, torsion, and axial force) caused by factored design loads. In many design standards, including Australian AS 5100.7, MCFT has been incorporated for bridge assessment, which requires a load rating to be carried out according to the loading of the nominated rating vehicle as prescribed in the standard. Recently, some approaches have been proposed for bridge load rating that have suggested using an iterative-search procedure to determine the s

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9

Gaurkar, Prachi P., and Amey Khedikar. "Comparison of Various Codes of Fire on Structural Design." International Journal for Research in Applied Science and Engineering Technology 10, no. 6 (June 30, 2022): 490–504. http://dx.doi.org/10.22214/ijraset.2022.43781.

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Abstract: Fire situation is the significant issue in India and that of different designs is severely impacted by them. A portion of the design might fall after the fire in view of temperature impact. In this research, the primary spotlight on the beam and column of the structure. The standard fire curve is presented in IS code for a substantial steel support however for concrete neither fire curve is created nor any issue proclamation is given with the goal that various codes are utilized for the issue explanation. In this venture IS code, Euro Code, National Building codes of Canada and Natio

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10

Hedulian, S. I., O. A. Gara, and S. V. Savchenko. "COMPARATIVE ANALYSIS OF THE USE OF EXPANSION AGENTS IN REPAIR SOLUTIONS OF DRY BUILDING MIXTURES FOR IMPROVING HARDENING CONDITIONS." Modern construction and architecture, no. 1 (September 29, 2022): 55–62. http://dx.doi.org/10.31650/2786-6696-2022-1-55-62.

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The article examines the possibility of increasing the compatibility of repair solutions based on dry mixes with damaged concrete and reinforced concrete structures by improving the curing conditions of such materials through comparative analysis of adhesive strength and linear shrinkage of cement samples using different types of superabsorbents, namely SAP Newsorb based on sodium polyacrylates from the Japanese manufacturer Newstone, Chinese MNC-SAP based on potassium polyacrylates from MUHU Construction Materials and AquaGel based on cross-linked copolymer of acrylamide and potassium acrylat

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11

Nikitin, A. E. "Monitoring of international standards in the scope of ISO/TC 71 “Concrete, reinforced concrete, pre-stressed concrete”." Bulletin of Science and Research Center of Construction 33, no. 2 (April 22, 2022): 161–72. http://dx.doi.org/10.37538/2224-9494-2022-2(33)-161-172.

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Introduction. At present, various approaches to standardization in construction are used that are often in poor agreement. This hinders international cooperation and collaborative planning, design, and construction of facilities. The harmonization of construction standards has been long overdue.Aim. In this work, international standards were monitored and compared with Russian analogs in order to develop an approach to their harmonization.Materials and methods. The European and American standards of the International Organization for Standardization (ISO) were selected for further comparison w

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12

Kurth, Helmut, Karl Heinz Winter, and Vaclav Pospíchal. "Ecological Requirements for Concrete Construction." Applied Mechanics and Materials 796 (October 2015): 111–18. http://dx.doi.org/10.4028/www.scientific.net/amm.796.111.

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The population explosion has lead to a markedly increased exploitation of our natural environment, hence the expression „sustainable development“ has become a catch phrase. In a historical perspective ecological problems recently became acute and this is why it is necessary to act quickly. It is obvious that we have to pay extreme attention to how we treat our environment and our sources. This necessarily will be reflected in the actions of the lawmakers in the future, and for the building industry the results will be that the authorities will enforce new law and regulations with direct conseq

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13

Mew, Geoff, and Adrian Humphris. "The 102-foot Australian Invasion of Central Wellington in the 1920s." Architectural History Aotearoa 8 (January 1, 2011): 30–35. http://dx.doi.org/10.26686/aha.v8i.7098.

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A significant change to the building bylaws by the Wellington City Council in the early 1920s allowed for the design and erection of much taller buildings in the central city than had previously been permitted. Coupled with the use of steel frames and concrete floors, buildings started to reach eight or nine storeys; not tall by American standards, but regarded as skyscrapers in a city where three- and four-storey buildings were still the norm. The fact that several of the most prominent of these new buildings were designed mainly by Australian architects, both in the 1920s and the early 1930s

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14

Stracchi, Paolo. "Prefabrication of a Thin Concrete Shell: The Case of St Kevin's Church in Dee Why, Australia." Journal of the International Association for Shell and Spatial Structures 62, no. 3 (September 1, 2021): 227–30. http://dx.doi.org/10.20898/j.iass.2021.009.

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Location of Project: Dee Why, NSW, Australia<br/> Structural Type: Prefabricated thin concrete shell <br/> Project Scale: Length 30 m, width 15.5 m, height 12 m <br/> Owner/Client: Warringah Catholic Parish <br/> Architect: Gibbons & Gibbons Architects <br/> Structural Engineer: Concrete Industries Australia (Monier) Engineers Pty. Ltd.<br/> Construction: Concrete Industries Australia (Monier) Pty. Ltd. <br/> Construction year: 1961<br/>

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15

Sriravindrarajah, Rasiah, and Elizebeth Tran. "Waterproofing practices in Australia for building construction." MATEC Web of Conferences 195 (2018): 01002. http://dx.doi.org/10.1051/matecconf/201819501002.

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Waterproofing is an essential component in building construction to maintain the integrity of buildings with reduced maintenance cost. A comprehensive waterproofing system is an integrated combination of factors, and includes product selection, membrane detail, substrate preparation, design, installation and maintenance. It is designed to work under different environmental conditions, substrates and applications. Proper understanding of the issues related to waterproofing membrane systems is important to minimise the waterproofing failures in both commercial and residential buildings. This pap

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16

B. Uy. "Modern design, construction and maintenance of composite steelconcrete structures: Australian experiences." Electronic Journal of Structural Engineering, no. 2 (December 1, 2007): 42–48. http://dx.doi.org/10.56748/ejse.802.

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Modern design, construction innovation and maintenance issues have been extensively utilised for composite steel-concrete building structures in Australia. This paper provides an overview of the design codes, innovative construction applications and maintenance issues for steel-concrete composite members in Australia. The paper initially provides an overview of the various codes of practice for steel-concrete composite members in Australia. In identifying construction innovation significant projects to adopt composite construction techniques are considered. Many of these projects have found th

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17

Scutarasu, Constantin Sorin, Dan Diaconu-Şotropa, and Marinela Barbuta. "Case Study on Modeling Fire Action Complexity in Fire Safety Engineering of Structures." Advanced Engineering Forum 21 (March 2017): 102–7. http://dx.doi.org/10.4028/www.scientific.net/aef.21.102.

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Important goals in the fire safety design, such as preventing loss of life and goods damage, are achieved by maintaining the stability of structures exposed to fire for a period of time established by norms and standards. Real fire scenarios confirm that the specific technical regulations which actually have a prescriptive character (both national and international) do not deal with sufficient possibilities regarding the assessment of structural fire safety. The new approach on structural safety, based on engineering notions, gives us additional prospects on it and it is included in the issues

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18

Nguyen, Kate TQ, Tuan Ngo, Priyan Mendis, and David Heath. "Performance of high-strength concrete walls exposed to fire." Advances in Structural Engineering 21, no. 8 (September 26, 2017): 1173–82. http://dx.doi.org/10.1177/1369433217732500.

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High-strength concrete is becoming very popular around the world due to its many advantages over normal-strength concrete. There are significant behavioural differences between high-strength concrete and normal-strength concrete, most notably the brittleness and sudden spalling under elevated temperatures, whereby pieces of hardened concrete explosively dislodge. Although all high-rise and even many medium-rise buildings have high-strength concrete walls, the spalling of high-strength concrete walls in fire has generally been ignored by the designers and the fire resistance of walls has been c

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19

Lazovic Radovanovic, Marija M., Jelena Z. Nikolic, Janko R. Radovanovic, and Svetlana M. Kostic. "Structural Behaviour of Axially Loaded Concrete-Filled Steel Tube Columns during the Top-Down Construction Method." Applied Sciences 12, no. 8 (April 8, 2022): 3771. http://dx.doi.org/10.3390/app12083771.

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The paper discusses the structural behaviour of concrete-filled steel tube columns (CFT) when applied to the top-down construction method as temporary internal supports for ceilings. Their ultimate capacity to take into account the actual boundary conditions of the column is essential for successful application in construction. The paper presents the full-scale in situ testing of four slender specimens with variable D/t ratios under concentric axial loading. The CFT columns were supported on the previously jacked concrete piles. In addition, detailed finite element numerical models in ABAQUS a

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20

Krylov, Sergey B., Ravil S. Sharipov, Sergey A. Zenin, and Yury S. Volkov. "Directions of Convergence of the Requirements of the Main Domestic Standard for the Design of Concrete and Reinforced Concrete Structures SP 63.13330.2012 with the Requirements of the International Standard ISO 19338." Scientific journal “ACADEMIA. ARCHITECTURE AND CONSTRUCTION”, no. 1 (March 18, 2019): 93–98. http://dx.doi.org/10.22337/2077-9038-2019-1-93-98.

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Design standards on building structures should contain, first of all, the performance and assessment requirements of structures. At the same time, design standards should provide the possibility for design and construction of concrete and reinforced concrete parts of buildings and structures that meet the requirements of the Technical regulations "On the safety of buildings and structures". Taking into account the importance of ensuring the reliability and safety of buildings and structures erected with the use of structural concrete, the technical Committee of the international organiza

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21

Topchiy, Dmitry V., Alina S. Bolotova, Aleksey S. Vorobev, and Alevtina V. Atamanenko. "Technical rationing of the construction technology of reinforced concrete floor slabs using non-removable void formers." RUDN Journal of Engineering Researches 20, no. 2 (December 15, 2019): 155–62. http://dx.doi.org/10.22363/2312-8143-2019-20-2-155-162.

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Technically sound standards of time and production standards are designed to improve production efficiency, technical and economic indicators of construction enterprises, timely commissioning of buildings and structures being erected, as well as ensuring the proper organization of workers' wages. Labor standards are used in determining the need for construction machinery and equipment, the required number of workers, and also serve as the basis for the development of network and calendar schedules that are part of the project of construction organization (PCO) and the project of construction p

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Senaratne, Sepani, Gregory Lambrousis, Olivia Mirza, Vivian W. Y. Tam, and Won-Hee Kang. "Recycled Concrete in Structural Applications for Sustainable Construction Practices in Australia." Procedia Engineering 180 (2017): 751–58. http://dx.doi.org/10.1016/j.proeng.2017.04.235.

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Hooton, RD, and LJ Struble. "Introduction to Symposium on Concrete Fracture Mechanics Standards." Cement, Concrete and Aggregates 19, no. 2 (1997): 77. http://dx.doi.org/10.1520/cca10318j.

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Falikman, V. R., and P. N. Sirotin. "Prospects of using crushed stone in accordance with GOST 32703 to produce concrete for general civil construction." Bulletin of Science and Research Center of Construction 33, no. 2 (April 14, 2022): 194–212. http://dx.doi.org/10.37538/2224-9494-2022-2(33)-194-212.

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Introduction. With the introduction of a new national standard GOST 32703–2014 “Automobile roads of general use. Crushed stone and gravel from rocks. Technical requirements”, mining companies producing crushed stone from dense rocks faced the problem of ensuring the production output in compliance with two significantly different standards, both regulating the properties of crushed stone. The complexity of a balanced approach to production planning and stock reserve maintenance determines the need to assess the possibility of using crushed stone produced according to GOST 32703 when producing

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25

Castel, Arnaud, Raoul François, Maria Paola Santisi d’Avila, and Doug Jenkins. "New service limit state criteria for reinforced concrete in chloride environments." Corrosion Reviews 37, no. 1 (January 28, 2019): 21–29. http://dx.doi.org/10.1515/corrrev-2017-0100.

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AbstractIn chloride environments, reinforcement stress limits, intended to control flexural cracking, are one of the most important requirements for service limit state (SLS) design. However, concrete damage at the steel-concrete interface between bending cracks, so called cover-controlled cracking, is always correlated to areas of severe steel reinforcement corrosion. Based on the assumption that cover-controlled cracking should be limited, a model has been developed to provide alternative reinforcement stress limits in marine exposure conditions such as concrete in sea water, including perma

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26

Venkrbec, Václav. "Optimization of Re-Mixing Recyclated Concrete Aggregates." Applied Mechanics and Materials 824 (January 2016): 116–23. http://dx.doi.org/10.4028/www.scientific.net/amm.824.116.

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Under the concept of sustainable construction it is necessary to establish harmonized indicators, standards and methods for assessing the impact of building products and technological processes of the construction industry on the environment. One of the basic commodity that have a significant impact on the environment is construction waste and his recycling options. Concrete aggregate (RCA), which can be made from concrete elements, has a great potential in reducing the volume of landfills and full re-using of concrete rubble. It can also fulfill sustainability criteria for construction by the

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Kumar, V. K. Pradeep, A. Sai Kumar, P. Venkat, and J. S. Kalyana Rama. "Economical Robust Mix Proportioning of Self-Compacting Concrete Mixes - A Comparative Study." Proceedings of the 12th Structural Engineering Convention, SEC 2022: Themes 1-2 1, no. 1 (December 19, 2022): 171–78. http://dx.doi.org/10.38208/acp.v1.491.

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Concrete being the second largest consumed material after water needs attention towards sustainable construction with an increase in infrastructure. The world is moving towards innovative techniques and methodologies for sustainable and durable construction of concrete structures. The selection of suitable ingredients for making concrete and determining the relative amounts with an objective of producing a concrete of required strength and durability is the need of the hour. Standard mix proportioning of concrete should satisfy the workability requirements and also meet the requirement for mec

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Yang, Fang, De Peng Lv, Hua Cao, Yan Fang Zhou, and Yu Rong Wu. "The Appraisal Example of the Reliability and Seismic Performance of a Reinforced Concrete Chimney." Applied Mechanics and Materials 204-208 (October 2012): 2399–404. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.2399.

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In the state that the chimney is being used, we evaluate the seismic performance of the reinforced concrete chimney on the basis of testing the tilt, mechanical properties and chemical composition, configuration of the steel and construction measures, the lining damage, the cylinder damage, the subsidiary systems and dynamic characteristics of the chimney. The results show that: For the long-term wind action, corrosion and hot action, and lower level of construction and lower design standards, the reliability of the chimney structure can’t meet the current standards requirements, and need to t

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Andrzej Moczko, Vladimir I. Andreev, and Marta Moczko. "Concrete quality testing in existing structures. Methods of european standards." Vestnik MGSU, no. 8 (August 2019): 967–75. http://dx.doi.org/10.22227/1997-0935.2019.8.967-975.

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Introduction: strength testing of cores cut from existing structures, as a rule, is believed the most reliable source of actual concrete quality information. However, this statement is true in part only. Although current European standards allow applying cut core testing for determination of actual structural condition with no restriction, they foresee that the given testing cannot replace concrete quality testing based on standard specimens taken by with the rules in effect. The study purpose is obtaining relevant information on concrete quality and structure, filler type and granularity, and

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Sun, Fei Long, Shuai Wu, Quan Jiang, and Ting Ting Liu. "Study on the Threshold Value and Test Methods for Chloride Ion Content in Sea Sand." Key Engineering Materials 680 (February 2016): 482–85. http://dx.doi.org/10.4028/www.scientific.net/kem.680.482.

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The building sand is mainly composed of river sand at early stage. Recently, with the depletion of river sand, the new mined river sand cannot meet the demands for building sand. The sea sand is resourceful and can remedy the deficiency of sand for construction. However, the sea sand contains high content of chlorine salt, shell and lightweight matters. They are harmful for the strength and durability of concrete and will lead to premature corrosion of rebar. This will endanger the safety of construction. The studies demonstrate that high content of chlorine salt in sea sand is the main factor

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Kropidłowska, Oliwia. "Application of sawdust concrete in construction." Budownictwo i Architektura 21, no. 3 (October 31, 2022): 005–18. http://dx.doi.org/10.35784/bud-arch.2927.

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Sawdust concrete is a type of lightweight concrete in which some of the mineral aggregate is replaced by sawdust - a by-product of wood processing. It is not a new material, but its potential is not utilised to its full degree. Taking into account the most important advantages of sawdust concrete - lower density and greater thermal and acoustic insulation than ordinary concrete - it is worth to consider the possibilities of its usage in construction wider than currently . In order to present the properties of sawdust concrete, the review of contemporary technical literature has been performed.

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Lakusic, Stjepan. "Construction of a new day hospital in Zadar using recycled aggregate concrete." Journal of the Croatian Association of Civil Engineers 73, no. 08 (September 2021): 833–44. http://dx.doi.org/10.14256/jce.3233.2021.

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This paper presents the pilot project of application of recycled aggregate during construction of a new day hospital in Zadar. The project included the demolition of an existing hospital building and the use of generated construction waste as recycled aggregate in the construction of a part of the building. The 16/32 mm fraction of aggregate was obtained by mechanical processing of the generated waste which was then tested in accordance with the HRN EN 206 and HRN EN 12620 standards. Four concrete mixes were prepared, and the fresh (slump, density, air content) and hardened properties were tes

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Khodakov, Artem, Maksim Tochenyy, Svetlana Belyaeva, Olga Nikonova, and Leonid Pakrastinsh. "Features of Using the Russian State Standards and the Eurocodes for the Protection and Repair of Concrete Structures." Applied Mechanics and Materials 633-634 (September 2014): 997–1001. http://dx.doi.org/10.4028/www.scientific.net/amm.633-634.997.

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The corrosion is one of the main deterioration reasons of structural concrete and reinforced concrete. The corrosion is a consequence of unsatisfactory construction maintenances, poor diagnosis of defects' causes and no fracture control of concrete structures and also incorrect repair specifications and incorrect products and techniques selecting for the repair inevitably lead to the concrete structures' deterioration. The most countries are taking care to developing of the national standards for using as manuals for the protection and repair of concrete structures against corrosion to avoid t

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Kessy, J., M. Alexander, and H. Beushausen. "Concrete durability standards: International trends and the South African context." Journal of the South African Institution of Civil Engineering 57, no. 1 (January 2015): 47–58. http://dx.doi.org/10.17159/2309-8775/2015/v57n1a.

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Durability problems in reinforced concrete (RC) structures are an issue of global concern, since they threaten economic growth, natural resources and human safety. As a result, attempts have been made in design standards developed in most countries to include requirements to provide durable RC structures. This paper examines and compares such durability requirements in standards from the United States, Australia, Canada, Europe, India and South Africa. It focuses on aspects such as exposure conditions, limiting values of material compositions and proportions, and cover depth to the reinforcing

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35

Li, Chuan Xi, and Xin Zhong Wang. "Construction of Steel Tube Concrete Arch Bridge after Axes Change." Advanced Materials Research 255-260 (May 2011): 831–35. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.831.

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In this paper ,the axes of a three-span dumbbell-shaped steel tube concrete arch bridge was changed due to deviation in bridge piers, tie beam construction and steel tube production, thereby steel tube arch ring can not be closed, and suspender hole can not be aligned. The side-span hollow steel tubes were intercepted and adjusted for three times through calculation and analysis, therefore the structure stress is reasonable and achieved original design standards under the condition of not changing the original arch axes, and the bridge was successfully constructed, thereby providing reference

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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.

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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

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Makunza, John. "Concrete Technology in a Rapidly Growing Urban Environment – The Case of Dar es Salaam City." Tanzania Journal of Engineering and Technology 41, no. 4 (December 31, 2022): 1–14. http://dx.doi.org/10.52339/tjet.v41i4.869.

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Concrete is a building material that is used in great quantities second only to our use of water. The ingredient materials of concrete include cement, fine and coarse aggregates plus a reasonable amount of water, and sometimes additives. The construction of various structures like, residential buildings, commercial buildings, hospitals, schools, bridges, etc, needs good quality concrete. Good modern technologies are needed by the construction industry in order to effectively construct buildings which are durable. A study has been done with the main objective of assessing the concrete technolog

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38

Choong, Wei Sheng, Jian Chong Chiu, Flavio Lopez-Martinez, Abdullah Alaklabi, Mariana Claudia Oliveira, Surya Dewi Puspitasari, and Julius Adebayo. "Utilization of Green Material for Concrete in Construction." Civil and Sustainable Urban Engineering 2, no. 2 (October 24, 2022): 82–95. http://dx.doi.org/10.53623/csue.v2i2.116.

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In this modern technological era today, green materials are highly regarded as one of the most important elements when designing and conducting an environmentally sustainable construction project. The cement that is utilized in conventional concrete today is one of the culprits for the high levels of carbon dioxide generated, which is damaging to the environment. Many researchers have shown and suggested that cement substitution is a favorite technique for minimizing the generation of greenhouse gas (GHG) emissions as well as substituting unused raw materials with concrete. The concept of gree

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39

Lim, Jee Hock, Qing Wei Chan, Yong Eng Tu, Parnam Singh, and Siong Kang Lim. "A comparison study on Australia, Eurocode, and US reinforced concrete structure repair codes." E3S Web of Conferences 347 (2022): 01006. http://dx.doi.org/10.1051/e3sconf/202234701006.

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Currently, there is no local standard on reinforced concrete structures repairing in Malaysia. The aim of this study is to discuss the similarities and differences of the reinforced concrete structure repair codes of Australia, Eurocode, and United States.In the methodology and work plan stage, preliminary decision for concrete repair is made after the structural assessment. Next, repair work is conducted in relation to the general planning. Lastly, repair products applied in the system are ensured to be mutually compatible in order to accept the repair work. According to the 11 principles lis

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40

Xu, Haixue, and Brahim Benmokrane. "Strengthening of existing concrete dams using post-tensioned anchors: a state-of-the-art review." Canadian Journal of Civil Engineering 23, no. 6 (December 1, 1996): 1151–71. http://dx.doi.org/10.1139/l96-925.

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Many old dams are in need of strengthening and rehabilitation as a result of aging, deterioration, deficiencies in design and construction, and more stringent safety standards. These standards include the probable maximum flood and the maximum credible earthquake. Post-tensioned anchors are the most practical and cost-effective method of strengthening existing concrete dams subjected to direct tension, sliding, overturning and seismic loading. In some cases, they are used to stabilize rock abutments and concrete locks and to combat the effects of alkaline and aggregate reaction. The post-tensi

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41

Chen, Zheng Fa, and Gui Feng Liu. "The Application of Reinforced Concrete Composite Floor System of Superimposing Box and Net Beam to Zibo Athletes Apartment." Advanced Materials Research 163-167 (December 2010): 1732–35. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.1732.

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According to the construction site of Zibo athlete apartment and the relevant standards, the structure constitution of the composite floor system, construction method and the problems that should be paid attention during construction were introduced in detail. Reinforced concrete composite floor system of superimposing box and net beam consisted of small prefabricated components- two reinforced concrete plates locating at top and bottom of the box and the cast-in-site concrete beam. This composite floor system was a whole structure of beam and plate combination, with a continuous box section.

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42

Jeong, Jae-Soo, and Chan-Sik Lee. "An Experimental Study on Quality Control Standards of Exposed Concrete in Construction Stage." Korean Journal of Construction Engineering and Management 13, no. 2 (March 31, 2012): 48–57. http://dx.doi.org/10.6106/kjcem.2012.13.2.048.

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43

Peng, Xiao Tao, Yi Xiong, Yong Wu, and Dan Meng. "The Alignment Control of Large-Span Continuous Beam Bridge Cantilever Construction Method." Applied Mechanics and Materials 351-352 (August 2013): 1226–30. http://dx.doi.org/10.4028/www.scientific.net/amm.351-352.1226.

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One long-span bridge adopted the cantilever casting method, which is pre-stressed concrete variable cross-section continuous box girder structure. In the construction process, due to the concrete pouring, hanging basket moving, construction loads, pre-stressed tension, concrete shrinkage and creep, temperature, humidity and many other factors. There will be such problems of cantilever beam segment closed error and the bridge line-type do not coincide in design goals. In this paper, we use the bridge dedicated finite element program MIDAS / Civil procedural for modeling and structural analysis.

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Badraddin, Abdulmalek K., Afiqah R. Radzi, Saud Almutairi, and Rahimi A. Rahman. "Critical Success Factors for Concrete Recycling in Construction Projects." Sustainability 14, no. 5 (March 7, 2022): 3102. http://dx.doi.org/10.3390/su14053102.

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This study explores the success factors of concrete recycling in construction projects, using Malaysia as a case study. The objectives include (1) identifying the critical success factors for concrete recycling in construction projects, (2) comparing the critical success factors between large enterprises (LEs) and small–medium enterprises (SMEs), and (3) developing constructs that group the critical success factors. First, a list of success factors was identified through semi-structured interviews with fifteen construction industry professionals and a systematic literature review of journal ar

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Garcez, Estela O., Muhammad I. Kabir, Mahbube Subhani, Alastair MacLeod, Andras Fehervari, Mitchell Hall, and Patrick Moulton. "Development of high strength self-compacting fibre reinforced concrete for prefabricated concrete industry." MATEC Web of Conferences 275 (2019): 02011. http://dx.doi.org/10.1051/matecconf/201927502011.

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Prefabricated construction is an emerging industry in Australia and considered a key mechanism to boost productivity in the construction industry. The use of fibre reinforced concrete has a huge potential in the prefabricated industry as the concrete can be delivered straight to the precast mould, eliminating in many cases the steel reinforcement, thus increasing production quotas and cost savings. Such results can be further improved by utilising self-compacting concrete reinforced with fibres. Although the use of steel fibres as reinforcement is now well established, in the precast industry

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46

Ohama, Yoshihiko, and Ota Masahiro. "Recent Trends in Research and Development Activities of Polymer-Modified Paste, Mortar and Concrete in Japan." Advanced Materials Research 687 (April 2013): 26–34. http://dx.doi.org/10.4028/www.scientific.net/amr.687.26.

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The present paper reviews the recent trends in research and development activities of polymer-modified paste, mortar and concrete in the Japanese construction industry. In Japan, the active research and development of the polymer-modified paste, mortar and concrete have been carried out for the past about 50 years, and they are nowadays used as dominant construction materials in various applications because of their high performance, multifunctionality and sustainability compared to conventional cement paste, mortar and concrete. The recent research and development activities of the polymer-mo

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47

Chaturvedi, Shashikant, Ajitanshu Vedrtnam, Maged A. Youssef, Martin T. Palou, Gonzalo Barluenga, and Kishor Kalauni. "Fire-Resistance Testing Procedures for Construction Elements—A Review." Fire 6, no. 1 (December 24, 2022): 5. http://dx.doi.org/10.3390/fire6010005.

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Fire accidents are a significant risk to human life and civil infrastructure. As a countermeasure, the regulatory bodies of different countries have established standards for evaluating the performance of construction elements during fire exposure. ISO 834 is the globally accepted fire-resistance testing standard. Other standards include ASTM E119, BS 476, IS 3809, JIS A 1304, AS 1503, EN 1363, and GB/T 9978, which are utilized by the US, Britain, India, Japan, Australia, Europe, and China, respectively. This article presents a summary and comparison of the fire-resistance testing standards. I

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Titus, P. G. "WEST TUNA I BREAM B: APPLICATION OF CONCRETE TECHNOLOGY OFFSHORE AUSTRALIA." APPEA Journal 37, no. 1 (1997): 546. http://dx.doi.org/10.1071/aj96033.

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Esso/BHPP's West Tuna and Bream B Platforms are the first completed concrete-based platforms in Australia and are Exxon's first designed, built and operated concrete gravity structures (CGSs). Both platforms were towed to location, complete with commissioned topsides facilities, in fourth quarter 1996 and successfully installed in 61 m of water. They will add in excess of 45,000 BOPD (7200 kl/d) of oil production to Bass Strait volumes. West Tuna, with 48 well slots, will be Esso/BHPP's largest and most complex Bass Strait production facility, whereas Bream B will be an 18-slot, unstaffed mini

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49

Awoyera, Paul O., Oyinkansola Awobayikun, Ravindran Gobinath, and Emmanuel I. Ugwu. "Rheological, Mineralogical and Strength Variability of Concrete due to Construction Water Impurities." International Journal of Engineering Research in Africa 48 (May 2020): 78–91. http://dx.doi.org/10.4028/www.scientific.net/jera.48.78.

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Various national and international standards recommend potable water for mixing concrete; however, the availability of potable water is virtually a daunting task in some developing communities. Concrete workers in such environments tend to utilize any available water for mixing concrete, and this may be detrimental to the quality of the concrete being produced. This study investigates the rheological, mineralogical and strength variability of concrete due to construction water impurities. Water samples were collected from four different construction sites within Southwestern region of Nigeria

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50

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.

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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

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