Determination Analysis of Content of Aggregate Micro Fines of Middle and Low Compressive Strength Manufactured Fine Aggregate Concrete |
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| Authors: | WANG Yuli WANG Weidong ZHOU Mingkai LI Beixing and LIU Suxia |
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| Institution: | Faculty of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, P.R.China;Faculty of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, P.R.China;Key Laboratory of Silicate Materials Science and Engineering of Ministry of Education, Wuhan University of Technology, Wuhan 430070, P.R.China;Key Laboratory of Silicate Materials Science and Engineering of Ministry of Education, Wuhan University of Technology, Wuhan 430070, P.R.China;Faculty of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, P.R.China |
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| Abstract: | There are some controversies on influences of stone powder on performances of concrete, and its content determination is one of the hot issues of manufactured fine aggregate (MFA) concrete. Slump and compressive strength of limestone MFA concrete were analyzed on contents of stone powder for middle-low strength and different flowability concrete. The experiment results show that there are different optimums percent of stone powder of MFA, such as 5, 10, and 20 for different types of concrete, but the water-powder ratio for them is 0.4. It is concluded that optimum percent of stone powder may be predicted by water-powder 0.4 for middle and low strength MFA concrete. |
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| Keywords: | ey words:manufactured fine aggregate (MFA) concrete content of aggregate micro fines (CAMF) water-powder ratio |
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