收缩率
压汞法
材料科学
蠕动
骨料(复合)
水银孔隙仪
复合材料
多孔性
入侵
多孔介质
地质学
地球化学
作者
José Manuel Gómez-Soberón
出处
期刊:Cement, concrete and aggregates
[ASTM International]
日期:2003-12-01
卷期号:25 (2): 1-7
被引量:54
摘要
Abstract In this work, an experimental analysis is described of specimens of recycled concrete (RC) made with replacement of natural aggregate with recycled aggregate originating from concrete (RCA). An experimental analysis to obtain the shrinkage and creep properties (basic and by drying) of RC was performed. The replacement fraction of natural aggregate with RCA were 0 %, 15 %, 30 %, 60 % and 100 % and the test conditions were 50 % RH and 20 °C. The results of these trials were compared with mercury intrusion porosimetry (MIP) and gas adsorption (nitrogen) tests, at 90 days. In the results, an increase in the shrinkage and creep properties of the RC with respect to conventional concrete was observed, while porosity values increased. However, the deformation evolution over time is similar to conventional concrete.
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