Results 1 to 10 of about 1,992 (120)
Crystals, 2021 In this study, the effects of recycled sand (RS) carrying sulfate corrosion media on mortar drying and autogenous shrinkages were investigated. Four variables were considered, the replacement percentage of RS, water to cement (W/C) ratio, secondary ...
Xiaohui Yan +5 more
doaj +1 more source
Shrinkage of mortar with the addition of wood biomass ash and recycled tyre polymer fibres
Građevinar, 2023 In this paper, the possible synergistic effects of fly wood biomass ash (WBA) and recycled tire polymer fibres (RTPF) on long-term autogenous shrinkage and drying shrinkage in mortar were investigated, and the pore structures of mortar specimens with WBA
Martina Grubor +3 more
doaj +1 more source
Cracking risk of high-performance cement composites due to restrained autogenous shrinkage with and without soaked lightweight aggregate [PDF]
Archives of Civil Engineering, 2023 Due to the large amount of binder and low water-cement ratio, high-performance cement composites have high compressive strength and a dense hardened cement paste microstructure.
Adam Zieliński +2 more
doaj +1 more source
Frontiers in Materials, 2022 The effects of air-entraining agent (AEA) and polypropylene fiber (PPF) on the autogenous shrinkage and fracture properties of fully recycled aggregate concrete (FRAC) are studied to obtain FRAC with low density, low autogenous shrinkage, and superior ...
Dong Ding +4 more
doaj +1 more source
Taiyuan Ligong Daxue xuebao, 2022 In order to study the effects of different cementitious materials (such as slag(SL), fly ash (FA), and red mud (RM)) on the mechanical and shrinkage properties of geopolymer, the autogenous and dry shrinkage experiment of geopolymer mortar sample ...
Yongbao WANG +4 more
doaj +1 more source
Influence of autogenous shrinkage on mass transport properties of concrete
Maskana, 2016 Autogenous shrinkage in concrete is defined as the change of volume after initial setting occurs. It develops at very early ages as a result of chemical shrinkage and self-desiccation effect.
Alexis Santiago Velez Guayasamin
doaj +1 more source
Effect of CaO on the Autogenous Shrinkage of Alkali-Activated Slag Mortar
Advances in Materials Science and Engineering, 2021 The autogenous shrinkage of alkali-activated slag (AAS) is significantly higher than that of ordinary Portland cement (OPC). The higher risk of concrete cracking due to autogenous shrinkage is a critical drawback to wider use of this promising ...
Dengdeng Zheng, Tao Ji, Guojie Wang
doaj +1 more source
A Low-Autogenous-Shrinkage Alkali-Activated Slag and Fly Ash Concrete
Applied Sciences, 2020 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 ...
Zhenming Li +4 more
doaj +1 more source
Advances in Materials Science and Engineering, 2016 Steel fiber reinforced lightweight-aggregate concrete (SFRLAC) has many advantages applied in structural engineering. In this paper, the autogenous shrinkage and drying shrinkage of SFRLAC for up to 270 days were measured, considering the effects of ...
Shunbo Zhao +3 more
doaj +1 more source
Investigating the Effect of CNTs on Early Age Hydration and Autogenous Shrinkage of Cement Composite
Applied Sciences, 2021 In this study, the effect of carbon nanotubes (CNTs) on the physical properties of cement composites was investigated. The mechanism of the change of autogenous shrinkage of CNTs-reinforced cement composites was also examined.
Byoungsun Park, Young Cheol Choi
doaj +1 more source