Searched for: subject%3A%22Concrete%22
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Tu, Botao (author), Yang, Xinkui (author), Xu, S. (author), Liang, X. (author), Liu, C. (author), Jiang, Jian (author), Fan, Lulu (author), Tu, Liangliang (author)
Using solid waste to replace limestone filler in asphalt concrete can not only reduce the cost of road construction, but also improve the utilization rate of solid waste. In this study, PHC pile waste concrete (PPWC) was innovatively used to replace limestone filler in asphalt mixture and its effect on the physical and rheological properties...
journal article 2023
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Moharekpour, Milad (author), Liu, Pengfei (author), Schmidt, Joshua (author), Oeser, Markus (author), Jing, R. (author)
The Guide for Design of Pavement Structures (AASHTO 86/93) and Mechanistic Empirical Pavement Design Guide (MEPDG) are two common methods to design continuously reinforced concrete pavement (CRCP) published by the American Association of State Highway and Transportation Officials (AASHTO) in the USA. The AASHTO 86/93 is based on empirical...
journal article 2022
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Li, Z. (author), Liang, X. (author), Liu, C. (author), Liang, M. (author), van Breugel, K. (author), Ye, G. (author)
This study investigates the deformation of free and stress of restrained alkali-activated slag concrete (AASC), respectively, under semi-adiabatic condition. The concrete shows first thermal expansion, which is compensated soon by autogenous shrinkage. The subsequent cooling down of the concrete aggravates shrinkage and development of tensile...
journal article 2022
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Sun, Yubo (author), Liu, Zhiyuan (author), Ghorbani, Saeid (author), Ye, G. (author), De Schutter, Geert (author)
The present study explores the possibility of replacing blast furnace slag (BFS) with coal fly ash (FA) to produce alkali-activated material (AAM) concrete with hybrid precursors. With an increased FA replacement ratio, the reaction kinetics, fresh and hardened properties of AAM mixtures have been investigated. The retardation effect on the...
journal article 2022
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Pan, Tanbo (author), Zheng, Yonglai (author), Zhou, Yujue (author), Liu, Yongcheng (author), Yu, Kunlong (author), Zhou, Y. (author)
This paper presents the results of an experimental study on the flexural behavior of carbon fibre reinforced polymer (CFRP) anchorage system strengthened reinforced concrete (RC) beams under the coupled effects of corrosion damage and sustained loading. The test beams were subjected to combined accelerated corrosion in 5% NaCl solution and...
journal article 2022
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Zheng, Yonglai (author), Wen, Yuan (author), Pan, Tanbo (author), Liu, Yongcheng (author), Zhou, Yujue (author), Li, Ruizhi (author), Zhou, Y. (author)
This study investigated the relationship between the acoustic emission (AE) signals parameter sequence fractal characteristics and the damage evolution information of corroded reinforced concrete (RC) beams under four-point bending. Strength deterioration behavior and AE data can be obtained by coupling the four-point bending test and the AE...
journal article 2022
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Wang, XiaoX (author), Liu, JiaP (author), Zhong, PeiH (author)
When the corrosion expansion stress of the steel reinforcement exceeds the ultimate tensile strength of the concrete, the concrete will crack and eventually cause structural damage. Therefore, direct characterization methods of steel corrosion expansion stress can help predict the concrete cracking time, prevent corrosion expansion and repair...
conference paper 2021
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Wang, Haochuan (author), Feng, Pan (author), Geng, Zifan (author), Liu, Qi (author)
The deterioration of organic coatings on concrete is closely linked to the efficiency in the protection process of reinforced structures. In the present work, polyurea resin and epoxy resin, which are widely used engineering coatings, were selected to measure and compare the performance under artificial aging. Fourier Transform infrared...
conference paper 2021
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Cai, Yuxin (author), Liu, Qing feng (author), Yu, Linwen (author), Meng, Zhaozheng (author), Hu, Zhe (author), Yuan, Qiang (author), Šavija, B. (author)
Fresh concrete needs vibration to compact, fill the mould and reach a dense state. During the compaction process, coarse aggregates (CAs) tend to settle, affecting the homogeneity and eventually the long-term durability of hardened concrete. In this study, a 3-D, multi-phase numerical model for fresh concrete is developed for better...
journal article 2021
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Liu, X. (author), Kasbergen, C. (author), Li, J (author), Scarpas, Athanasios (author)
The adhesive bonding strength of the membrane layers between the asphalt concrete surface layers and the decks of steel bridges has a strong influence on the fatigue life of orthotropic steel deck bridges (OSDBs). The most important requirement for the application of membrane materials to orthotropic steel deck bridges is that the membrane...
journal article 2020
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Liu, X. (author), Kasbergen, C. (author), Li, J (author), Scarpas, Athanasios (author), Tzimiris, G. (author)
The adhesive bonding strength of the membrane layers between the asphalt concrete surface layers and the decks of steel bridges has a strong influence on the fatigue life of orthotropic steel deck bridges (OSDBs). The interfacial properties between the membrane and the layers bonded to it have not been extensively studied in the current...
journal article 2020
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Wang, H. (author), Yang, Jun (author), Lu, Guoyang (author), Liu, X. (author)
Self-healing of asphalt concrete (AC) is highly dependent on temperature, and its healing capacity increases with elevated temperatures. The main objective of this study is to investigate the effect of microwave heating on promotion of self-healing in AC. With this purpose, two types of AC specimens (neat AC without additives and conductive...
journal article 2020
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Liu, Faqi (author), Yang, Hua (author), Yan, R. (author), Wang, Wei (author)
The behaviour of square steel tube confined reinforced concrete columns after fire exposure was studied experimentally and numerically in this paper. Eighteen stub columns were first heated following the ISO 834 standard fire including both heating and cooling phases, and were subsequently loaded to failure after cooling to ambient temperature....
journal article 2019
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Li, Z. (author), Liu, Jiahua (author), Ye, G. (author)
This study investigates the drying shrinkage and the shrinkage-induced stress of alkali-activated blast furnace slag and fly ash concrete (AC) in comparison with ordinary Portland cement concrete (OC). For samples that were dried from 1 day after casting, the drying shrinkage of AC was much higher than that of OC. For samples that were stored...
journal article 2019
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Liu, X. (author), Li, J (author), Tzimiris, G. (author), Scarpas, Athanasios (author)
The orthotropic steel deck bridges (OSDBs) in the Netherlands consists mostly of multilayer system: top porous asphalt layer, guss asphalt layer, steel deck and two membrane layers. The five-point bending (5PB) beam test is the standard device in France for characterization of fatigue response of asphalt concrete surfacings used on...
journal article 2019
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Ye, G. (author), Lukovic, M. (author), Ghiassi, B. (author), Aldin, Zainab (author), Prinsse, Silke (author), Liu, Jonh (author), Nedeljković, Marija (author), Hordijk, D.A. (author), Lagendijk, P. (author), Bosman, A. (author), Blom, T.A. (author), van Leeuwen, M. (author), Huang, Zhekang (author), Celada, Ulric (author), Du, C. (author), van den Berg, J.A.M. (author), Thijssen, A. (author), Wijte, Simon (author)
The sustainability of infrastructure projects is becoming increasingly important issue in engineering practice. This means that in the future the construction materials will be selected on the basis of the contribution they can make to reach sustainability requirements. Geopolymers are materials based on by-products from industries. By using...
journal article 2019
document
Xiong, Zhihua (author), Liu, Yuqing (author), Zuo, Yize (author), Xin, H. (author)
In order to evaluate the shear performance of sand-coated glass fiber-reinforced polymer (GFRP) perforated connectors (SCGPC) embedded in concrete, 8 pull-out tests were conducted. Finite element (FE) analysis considering GFRP failure and cohesion between GFRP and concrete of SCGPC were conducted for parametric analysis. Effects of surface...
journal article 2019
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Zhang, Youyou (author), Liu, Yuqing (author), Xin, H. (author), He, Jun (author)
Steel-concrete composite high bridge pier has been applied increasingly in China and around the world. Most applied steel type in the composite piers are H-shaped steel and steel pipe, while seldom research or practice is associated with angle steel. This paper conducted parametric study on the composite column with equal-leg angle steel and...
journal article 2019
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Wang, H. (author), Liu, X. (author), Apostolidis, P. (author), Scarpas, Athanasios (author)
In recent years, transportation agencies and the general public alike are demanding increased considerations of sustainability in transport infrastructure. Warm mix asphalt (WMA) is developed for reducing energy consumptions and emissions in asphalt paving industry. In addition, the use of rubberized asphalt concrete (RAC) has proven to be...
journal article 2018
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Hansen, W. (author), Liu, Z. (author), Koenders, E.A.B. (author)
Viscoelastic stress modeling in ageing cementitious materials is of major importance in high performance concrete of low water cement ratio (e.g. w/c ~0.35) where crack resistance due to deformation restraint needs to be determined. Total stress analysis is complicated by the occurrence of internal stresses due to shrinkage, which requires...
conference paper 2014
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