Curing effect in the shrinkage of a lower strength self-compacting concrete
作者： Miguel José Oliveira , António Bettencourt Ribeiro , Fernando Garrido Branco
DOI: 10.1016/J.CONBUILDMAT.2015.04.035
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摘要: Abstract Self-compacting concrete possesses special properties that recommend its application in many repair jobs. However, some practical cases, inappropriate performance of the material has been observed early stages hydration, including cracks or delamination due to shrinkage. As use self-compacting becomes more prevalent, novel techniques combat this phenomenon have developed, but control curing conditions continues be an important prerequisite. In study, experimental work on effect total shrinkage a lower strength concrete, is presented. The was evaluated compositions made with different commercial shrinkage-compensating products. results obtained indicate all (with without reducing admixtures and expansive product) higher long-term when subject cure. It found specimens longer period median pore diameter. related refinement structural porosity. also confirm time essential minimise at ages. causes drying mass loss causing delaying development allowing natural development.
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