2022
DOI: 10.1016/j.cemconcomp.2022.104417
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Effects of fibres on ultra-lightweight high strength concrete: Dynamic behaviour and microstructures

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Cited by 44 publications
(10 citation statements)
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“…This probably occurred when the mortar samples were crushed to extract the BFRP bars before the mechanical tests. Similar results were also reported by Zhang et al 59 In addition, fewer pits and voids were found in the SSGM at the older age (Figure 10H, I), which indicates that the geopolymer matrix had fewer defects and showed a denser microstructure as the immersion time increased. This is also consistent with previous studies 53,56 that SSGM with a higher GGBS content was denser and stronger than OPC in terms of microstructure.…”
Section: Resultssupporting
confidence: 89%
See 1 more Smart Citation
“…This probably occurred when the mortar samples were crushed to extract the BFRP bars before the mechanical tests. Similar results were also reported by Zhang et al 59 In addition, fewer pits and voids were found in the SSGM at the older age (Figure 10H, I), which indicates that the geopolymer matrix had fewer defects and showed a denser microstructure as the immersion time increased. This is also consistent with previous studies 53,56 that SSGM with a higher GGBS content was denser and stronger than OPC in terms of microstructure.…”
Section: Resultssupporting
confidence: 89%
“…Moreover, the ratio of Si/Al is also found to be approximately 3.0 for all cases, which reflect the extent of dense gel structure with C-A-S-H or C-S-H. And the higher ratios of Si/Al may be further found in alkali activated binder which leads to a more densified microstructure. 59…”
Section: Sem Images and Edsmentioning
confidence: 99%
“…Environmentally friendly and nonpolluting, alkaline solution is an inorganic solution that, at the right ratio, can be used to consume kaolinite in GRS and generate a geopolymer or gel substances. Since kaolinite has been consumed, this substance not only improves the soil to some degree but also solves the problem of GRS disintegrating rapidly in water [14,40,41]. Alkaline treatment of GRS has a number of advantages, but the treated GRS is exceptionally brittle, which could lead to a brittle efect comparable to that of cement reinforcement [42][43][44].…”
Section: Introductionmentioning
confidence: 99%
“…Li et al found that the deformation capacity and absorption energy of concrete with early age increased logarithmically with curing age under impact load 27 . The above studies focus on the dynamic mechanical response of plain concrete after the curing age of 1 day, while for supporting structure, early strength concrete is often adopted, and the curing age of 4–24 h is the main period when concrete is affected by dynamic load 28–31 …”
Section: Introductionmentioning
confidence: 99%
“…27 The above studies focus on the dynamic mechanical response of plain concrete after the curing age of 1 day, while for supporting structure, early strength concrete is often adopted, and the curing age of 4-24 h is the main period when concrete is affected by dynamic load. [28][29][30][31] Basalt fiber is a continuous fiber formed by wire drawing of basalt stone after melted at a high temperature, and has advantages of high strength, high stability, corrosion resistance, and high temperature resistance. 32 Adding basalt fiber can improve the mechanical properties of concrete effectively.…”
mentioning
confidence: 99%