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Experimental Study on Plastic Shrinkage of M-sand Concrete

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Title Experimental Study on Plastic Shrinkage of M-sand Concrete
 
Creator Hemalatha, T
Gopal, Ramesh
Sangoju, Bhaskar
 
Subject Aggregate
Durability
Fly ash
River sand
Steel fibre
 
Description 607-616
Due to faster dwindling of river sand, nowadays, the use of alternative aggregates such as manufactured sand (M-sand) is
inevitable in concrete. Though the positivity of M-sand is reported in many literature, few literature report the drawback of
angular shape and gradation of the M-sand in altering the properties of cement/concrete. Especially, the properties at fresh
state are affected by the size, shape and volume of the fine and coarse aggregates. The properties at fresh state include plastic
shrinkage, if unattended this will lead to durability issues. Most of the studies concentrate on strength parameters and
influence of M-sand on properties such as plastic shrinkage is rarely addressed. In order to consider this important property, in
the present study, the influence of M-sand on plastic shrinkage is investigated. The strength and plastic shrinkage properties
of various mixes with M-sand and river sand are compared. It is found that the angular shape and coarser gradation of Msand
helps in reducing the plastic shrinkage compared to river sand. Further, it is found that when using M-sand as fine
aggregate in the concrete, the composition of the fine and coarse aggregate is same that has positive effect on the plastic
shrinkage. Hence, this study shows that M-sand can be considered as a successful alternative, not only in strength but also in
controlling the plastic shrinkage.
 
Date 2024-06-07T09:48:42Z
2024-06-07T09:48:42Z
2024-06
 
Type Article
 
Identifier 0022-4456 (Print); 0975-1084 (Online)
http://nopr.niscpr.res.in/handle/123456789/64051
https://doi.org/10.56042/jsir.v83i6.3578
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source JSIR Vol.83(6) [June 2024]