Effects of ambient temperature and relative humidity on early-age shrinkage of UHPC with high-volume mineral admixtures
- YAZICI, HALİT
- YALÇINKAYA, ÇAĞLAR
DOIAbstract
This study focuses on the early-age shrinkage of ultra-high performance concrete (UHPC) with high-volume mineral admixtures. Two low cement UHPC mixtures, which have similar compressive strength with control mixture, were obtained with high-volume ground granulated blast furnace slag (GGBFS) or fly ash (FA) replacements. The effects of exposure temperature on autogenous shrinkage of sealed specimens and drying shrinkage were studied at early-age (<24 h). Moreover, effect of relative humidity (RH) on early-age drying shrinkage was investigated at a constant temperature. As a result, the following five major conclusions can be drawn: (1) producing eco-friendly UHPCs, which have compressive strength of 150 MPa, with 50% GGBFS or 30% FA replace...
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