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A BASIC STUDY ON FLUID PREDICTION OF MORTAR WITH VARIOUS POWDERS

Authors :
Hidehiro Koyamada
Yuki Takagi
Koji Takasu
Hiroki Suyama
Source :
International Journal of GEOMATE. 14
Publication Year :
2018
Publisher :
International Journal of Geomate, 2018.

Abstract

In the field of concrete, Fly ash and crushed stone powder which are by-product powders andlimes stone powder are used as admixture materials for concrete from the viewpoint of environmental load.Then we should use by-product powders as materials of the concrete as a substitute of fine aggregate.Therefore, it is necessary to predict fluidity of the concrete with powders in large quantities. In this study, wetried a fluid evaluation of mortar with various by-products powders and a fluid prediction by grasping a fluidtendency of mortar with various powders as a part of fine aggregate, and adopted the thickness of a surpluswater film theory and the relative flow area ratio as an evaluation index. We clarified when used by-productpowders as a part of fine aggregate, we can use excess water film for an index. But the value of the relativeflow area ratio was different because of the same thickness of a surplus water film depending on the kind ofthe powder. It was thought that the fluidity of mortar was able to predict by applying the correction valueproposed by this study in various mixtures that used the by-product powder.

Details

ISSN :
21862990 and 21862982
Volume :
14
Database :
OpenAIRE
Journal :
International Journal of GEOMATE
Accession number :
edsair.doi...........a48350aa4d1ab2bc72cd20ae59e45db3
Full Text :
https://doi.org/10.21660/2018.42.3548