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Juan Pablo Covarrubias V.
Pág. Page 181 - 197
A new technology has been developed to design concrete pavements, which reduces slabs' thickness and optimizes their sizes, because of trucks axles' geometry. The design is supported by a gravel base treated with concrete or asphalt. It assumes there is ...
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Aghiad Alhafez, Shingo Miyazawa, Nobukazu Nito, Ryuichiroh Kuga and Etsuo Sakai
Cement with fly ash has rarely been used in Japan, mainly because its strength development is slower than ordinary Portland cement. In this research, the effect of the new type of fly ash (which was modified by the electrostatic belt separation method) w...
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Paulo Marcelo Vieira Ribeiro and Pierre Léger
Concrete dams are massive unreinforced quasi-brittle structures prone to cracking from multiple causes. The structural safety assessment of cracked concrete dams is typically performed using computational analysis through numerical methods, with adequate...
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Michael Frenzel, Enrico Baumgärtel, Steffen Marx and Manfred Curbach
This article presents the cracking and load-bearing behaviour of carbon-reinforced prismatic concrete tensile specimens. Grids with different geometries and impregnations were used as carbon reinforcement. In addition, the roving surfaces were partially ...
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Jawad Ahmad, Dumitru Doru Burduhos-Nergis, Mohamed Moafak Arbili, Saleh M. Alogla, Ali Majdi and Ahmed Farouk Deifalla
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Bin Zeng, Yuzhou Wang, Fuyuan Gong and Koichi Maekawa
Concrete cracking is the significant stage of RC structural deterioration induced by steel corrosion. To predict the corrosion-induced cracking of the loaded RC structure, a multi-scale model is proposed. The formation and transport of corrosion products...
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Miguel-Ángel Climent, Marina Miró, Jesús-Nuño Eiras, Pedro Poveda, Guillem de Vera, Enrique-Gonzalo Segovia and Jaime Ramis
This work presents results allowing an unequivocal correlation of the observations of strong nonlinear elastic features of ultrasonic waves (values of the nonlinearity parameters exceeding the thresholds corresponding to undamaged states), with the criti...
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Jifeng Yuan, Jin Wu, Tian Su and Dadi Lin
Airport runway pavements often undergo the direct impact of aircraft landings. For the purposes of designing the structure, it is of great importance to know about the dynamic response of the pavement and its behavior under impact loading. However, the d...
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Euibae Lee, Jeongwon Ko, Jaekang Yoo, Sangjun Park and Jeongsoo Nam
In this study, the drying shrinkage cracking characteristics of concrete containing 30% fly ash were investigated for various dune sand (DS) replacements and unit water contents. In the results of compressive strength, the mixture with a DS-to-fine aggre...
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Feng Zhang, Xun Xi and Shangtong Yang
In this paper, the recent research progress on the corrosion of reinforced alkali-activated materials (AAMs) concrete structures is reviewed. The corrosion mechanisms induced by carbonation and chloride ingress in AAMs concrete are discussed, from the pe...
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Hiep Dang Vu, Duy Nguyen Phan
Pág. 222 - 234
This study aims at experimentally and theoretically investigating the cracking moment (Mcrc) of hybrid Fiber Reinforced Polymer (FRP)/steel Reinforced Concrete (RC) beams. Six hybrid Glass FRP (GFRP)/steel and three GFRP RC beams with various GFRP and st...
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Zhenming Li, Xingliang Yao, Yun Chen, Tianshi Lu and Guang Ye
Alkali-activated slag and fly ash (AASF) materials are emerging as promising alternatives to conventional Portland cement. Despite the superior mechanical properties of AASF materials, they are known to show large autogenous shrinkage, which hinders the ...
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Richard Malm, Rikard Hellgren and Jonas Enzell
Dams located in cold areas are subjected to large seasonal temperature variations and many concrete dams have cracked as a result. In the 14th International Commission on Large Dams (ICOLD) Benchmark Workshop, a case study was presented where contributor...
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Francesco Micelli, Leandro Candido, Emilia Vasanelli, Maria Antonietta Aiello and Giovanni Plizzari
The enhanced post-cracking properties of fiber-reinforced concrete (FRC), as compared to plain concrete (PC), are extensively proven by many experimental findings. However, still limited experimental data are available on the behavior of such materials i...
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Daniel Ruiz, Claudia Ramírez, Laura Logreira, María León
Pág. Page 17 - 31
Conventional non-reinforced concrete is a brittle material with a low tensile strength and low strain capacity. To improve these mechanical properties of concrete, fibers have been used in the last decades in structural engineering applications in Colomb...
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Pedro Montes-Garcia, H López-Calv, T Bremner
Pág. Page 233 - 244
The effectiveness of calcium nitrite based corrosión inhibitor as a prevention method of steel reinforcing bars embedded in cracked concrete slabs was investigated. A factorial design was deveioped to evalúate the effect of cracking in concrete consideri...
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José Castorena, Adán Borunda, Citlalli Gaona, Alberto Martínez, Facundo Almeraya
Pág. Page 35 - 42
Based on studies with finite element method, a model able to predict the quantity of steel corrosion (rcrit) necessary for the first visible crack appearance in the surface of the concrete cover was obtained. For the finite element analysis the software ...
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Julio Portella
Pág. Page 15 - 24
This paper provides a bibliographic review regarding some physical and mechanical properties of polypropylene fibers and their use in concrete. The inclusion of fibrous reinforcements in concrete is growing up. However this association is only experiment...
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B. H. Klochko,O. O. Kushvid
Pág. 124 - 126
The article presents the results of experimental and theoretical studies of the conditions of concrete destruction in the structures, exposed to the influence of aggressive media. The possible mechanisms of micro-crack formation, depending on the structu...
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Nabeel H. Al-Salim, Muna H. Jaber, Rafea F. Hassan, Nisreen S. Mohammed and Husam H. Hussein
Fiber-reinforced concrete is widely acknowledged for its ability to resist cracking effectively and limit its propagation. By preventing cracks from spreading, the addition of fiber composites to concrete can enhance its extensibility and tensile strengt...
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