Open AccessStudy on hydrodynamic properties of a common building material
Author(s) -
Yifei Wang,
Chu Mengyun,
Jingjian Li
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/676/1/012053
Subject(s) - flow (mathematics) , materials science , cement , talc , mortar , flow properties , water–cement ratio , geotechnical engineering , water flow , composite material , engineering , mechanics , physics
The efficient self-leveling ability of self-compacting concrete is widely used in various industries and structures, but the influence mechanism and law on its flow performance have not been quantified, so it is urgent to find a suitable explanation method. Water film thickness is considered to be one of the key factors affecting the flow performance of mortar and cement paste, but there is a lack of research in concrete. In this paper, relevant experimental studies are carried out based on the theoretical innovation of water film thickness. In order to further improve the flow performance of self-compacting concrete, according to a certain gradient, 24 fresh self-compacting concrete flow performance tests and filling density measurement tests were carried out to observe the relationship between water film thickness and concrete flow performance. The results show that there is a strong correlation between the flow performance of concrete and the thickness of water film, and there is a positive correlation between them. the addition of talc powder can improve the flow performance of self-compacting concrete, and the flow performance is the best when 5% talc powder is added to replace cement.