Effect of Limestone Powder on Microstructure of Concrete |
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Authors: | LIU Shuhua YAN Peiyu |
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Affiliation: | LIU Shuhua1,YAN Peiyu2 (1. State Key Laboratory of Water Resource , Hydropower Engineering Science,Wuhan University,Wuhan 430072,China,2. Department of Civil Engineering,Tsinghua University,Beijing 100084,China) |
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Abstract: | The effect of limestone powder on microstructure of concrete was studied by using mercury intrusion porosimetry (MIP), backscattering scanning electron(BSE), scanning electron mi- croscopy (SEM) and X-ray diffraction (XRD) techniques. The experimental results show that the compressive strength of concrete containing 100 kg/m3 limestone powder can meet the strength re- quirement. Limestone powder has not pozzolanic activity; it is still unhydrated at the age of 28 days. But its filling effect can make the pa... |
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Keywords: | concrete limestone powder microstructure filling effect hydration characteristic |
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