期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 181, 期 -, 页码 358-368出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2018.06.044
关键词
Filling performance; Granular packs; Grating box; Self-compacting mortar; Damping coefficient
资金
- National Natural Science Foundation of China [51239006, 51509139, 51579133]
- National 863 Technology Research and Development Program of China [2012AA06A112]
Grating-box test is proposed and applied to evaluate the resisting ability of granular packs to the filling movement of self-compacting cementing materials. Firstly, parameter h(2) (h(2)(N)), reflecting the filling performance of SCM, is obtained from theoretical analysis of self-compacting-mortar's filling performance in quasi-three-dimensional (quasi-3D) granular packs. Second, experimental results of grating-box test with quasi-3D molds using cylindrical obstacles are found in good agreement with the theoretical analysis above. Third, damping coefficient eta, an indicator being positive correlated with the resisting ability of granular packs to filling movement of SCM, is found to represent the inherent properties of granular packs. (C) 2018 Elsevier Ltd. All rights reserved.
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