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Eyad K. Sayhood, Nisreen S. Mohammed, Salam J. Hilo and Salih S. Salih
This paper presents comprehensive empirical equations to predict the shear strength capacity of reinforced concrete deep beams, with a focus on improving the accuracy of existing codes. Analyzing 198 deep beams imported from 15 existing investigations, t...
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Amirhassan Alizadeh, Taleb Moradi Shaghaghi, Masoud Pourbaba, Seyed Saeed Mirrezaei and Yousef Zandi
Shear failure is an unfavorable phenomenon as it is a brittle type of failure; however, adding rebars and fibers to a concrete beam can minimize its detrimental effects. The objective of this study was to experimentally investigate the shear behavior of ...
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Evgenii M. Shcherban?, Sergey A. Stel?makh, Alexey Beskopylny, Levon R. Mailyan and Besarion Meskhi
The problem of increasing the service life of buildings and structures for agricultural purposes operated in aggressive environments is relevant. The aim and scientific novelty of the work were to determine the relationship between the structure and prop...
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Nicolas González, Jesús Castaño, Yezid Alvarado, Isabel Gasch
Pág. Page 220 - 233
In this paper the performance of an Ultra-High Performance Concrete (UHPC) reinforced with different contents of metal fibers is evaluated. This concrete was produced using materials available in Colombia and conventional manufacturing techniques;, ie no...
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Khandaker M. A. Hossain, Katie Chu and Muhammed S. Anwar
This paper presents the behavior of concrete-filled steel tube (CFST) columns infilled with fiber-reinforced self-consolidating ultrahigh strength concrete (UHSC) subjected to axial concentric monotonic loading to failure. UHSC is expected to improve eas...
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Yi Zhang, Hui Li, Qingqing Lu, Jie Yang and Tao Wang
To solve the problem of insufficient strength and durability of porous concrete pavement, seven different admixtures were used in this study so that the above properties could be optimized. The strengthening effect of admixtures on the strength and anti-...
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Seonguk Hong, Sangki Yoon, Jonghyun Kim, Changjong Lee, Seunghun Kim and Yongtaeg Lee
The purpose of this study is to estimate the compressive strength according to the age of the concrete structure using ultrasonic pulse velocity method. If the correlation between the ultrasonic pulse velocity and the compressive strength according to th...
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Zhihong Xie, Zhijian Duan, Yongchang Guo, Xiang Li and Junjie Zeng
Fiber-reinforced polymer (FRP) has become increasingly popular in repairing existing steel-reinforced concrete (RC) members or constructing new structures. Although the quasi-static axial compression performance of FRP-confined concrete (FCC) has been co...
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Julin Wang
Pág. 334 - 348
In this paper, four concrete frame joints with high-strength stirrups and one with normal-strength stirrups were tested to investigate the mechanical properties of concrete beam-column joints with high-strength stirrups under low cyclic reversed lo...
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Seyed-Ali Sadegh-Zadeh, Arman Dastmard, Leili Montazeri Kafshgarkolaei, Sajad Movahedi, Saeed Shiry Ghidary, Amirreza Najafi and Mozafar Saadat
Superplasticizers (SPs), also known as naturally high-water reducers, are substances used to create high-strength concrete. Due to the system?s complexity, predicting concrete?s compressive strength can be difficult. In this study, a prediction model for...
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Alexsandera Shishkina,Oleg Nastich,Kateryna Romanenko,Svitlana Oliinyk
Pág. 48 - 53
The chemical processes of Portland cement hydration enable the formation of concrete compressive strength. Under certain conditions, increasing the rate of cement hydration contributes to the improved strength of concrete at compression. This is especial...
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Handoko Sugiharto,Tedy Gunawan,Yusuf Muntu
Pág. pp. 87 - 92
High Early Strength Self Compacting Concrete, a new phenomenon in the world of concrete technology, offers advantages such as high workability, high durability and high early strength characteristic that can well be applied especially in the pre-cast con...
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Doddy Prayogo
Pág. 21 - 29
Estimating the accurate concrete strength has become a critical issue in civil engineering. The 28-day concrete cylinder test results depict the concrete's characteristic strength which was prepared and cast as part of the concrete work on the project....
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Dong-Hwan Kim, Min-Jun Kim, Min-Su Jo, Hyeong-Gook Kim, Yeo-Jin Yoon and Kil-Hee Kim
This study aimed to evaluate the flexural behavior characteristics of prestressed concrete hollow-core slabs (HCSs) through bending experiments. Six specimens were used as variables, both with and without reinforced concrete, in the HCS. A four-point loa...
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Saied Kashkash, Oliver Czoboly and Zoltan Orban
Large quantities of construction and demolition waste are generated annually, and in many parts of the world, it is disposed of in landfills. Utilizing this waste to produce coarse aggregates for concrete production offers a potentially sustainable appro...
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Ibrahim Baran Karasin
Ensuring the safety and stability of buildings during earthquakes is of utmost importance. This can be achieved by assessing the seismic performance of reinforced concrete structures with consideration of design details. This study focused on the seismic...
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Yelbek Utepov, Assel Tulebekova, Aliya Aldungarova, Timoth Mkilima, Shyngys Zharassov, Zhanbolat Shakhmov, Daniyar Bazarbayev, Temirkhan Tolkynbayev and Zhanar Kaliyeva
Concrete strength gain can be significantly affected by the initial characteristics of the raw materials. Unfortunately, information on the potential influence of the initial water pH on concrete strength gain is still scarce. In this study, the potentia...
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Di Zhao, Jigang Zhang, Ling Lu, Haizhi Liang and Zhehao Ma
Steel tube confined concrete (STCC) stub columns have great strength and facilitate construction. In this study, the axial compressive strength of an aluminum alloy tube confined concrete column with (ATCC-CHS) and without (ATCC) a circular hollow sectio...
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Ali S. Alqarni, Husain Abbas, Khattab M. Al-Shwikh and Yousef A. Al-Salloum
Worldwide the concrete industry has started embracing the utilization of recycled concrete aggregates (RCAs) resulting from demolition and construction waste as full or partial substituents in the production of high-strength concrete (HSC) due to their e...
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Rui Ren, Xinjiang Xu, Dongbo Li, Li Fan, Qinlong Liu and Xiguang Liu
To study the bond?slip behavior of steel?steel fiber recycled aggregate concrete, push-out tests of 16 specimens were carried out using steel fiber volume ratio, steel fiber aspect ratio, steel protective layer thickness and steel embedded length as the ...
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