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quotProportioning of Self Compacting Concrete Mixes Based on Plastic Viscosity Approach Experimental and Numerical Investigationsquot

Shodhganga@INFLIBNET

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Title quotProportioning of Self Compacting Concrete Mixes Based on Plastic Viscosity Approach Experimental and Numerical Investigationsquot
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Contributor M. V. N. SIVAKUMAR
 
Subject quotCivil Engineering, Plastic Viscosity, Concrete Mixes Basedquot
 
Description With the increase in population, there is a demand for large-scale construction ofhigh rise structures. To meet the quality of standards highly skilled labour is required to complete the construction project efficiently on time. Achieving this is a great challenge with the routine trend of timely compacting and vibrating of the concrete. Sometimes this will lead to
newlineobstruction of concrete while pumping into congested reinforcement due to delay in
newlinetheprocess. To address this and increase the efficiency of concreting,Self-Compacting
newlineConcrete (SCC) is to be adopted because of the ease it has got in pumping concrete into
newlinecongested portions. Not needing any compaction or vibration is anadded advantage of using SCC. SCC is mainly preferred to conventional concrete because of its enhanced fresh and hardened properties.Choosing alternate supplementary cementitious materials will also decide the overall
newlineeconomy of the construction project. There is an ecological imbalance due to the use of
newlineOrdinary Portland Cement (OPC) for making concrete. This, in turn, will release the CO2 into the atmosphere and alters the health of people. With so much waste being generated,
newlineprocessing the same and using it as an alternate to OPC is very much essential to make ecofriendly concretes. Nowadays the common problem faced by many of the concrete plants is the shortage of river sand as fine aggregate material. This led to the utilization of locally available materials from quarries as fine aggregate. Crushed Rock Fines (CRF) is theresult of that which is an
newlinealternative to the river sand. With the percentage of fines present in CRF ismore compared to river sand, it shows a better performance in terms of fresh properties.
newlineThe present study deals with the formulation of SCC mix design based on the chosen plastic
newlineviscosity of the mix and measured theplastic viscosity of the cement pastes incorporating
newlinesupplementary cementitious materials with CRF and river sand as afine aggregate. Four
newlinedifferent combinations including two binary and one ternary
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Date 2018-10-18T04:51:42Z
2018-10-18T04:51:42Z
01/07/2013
2018
01/08/2018
 
Type Ph.D.
 
Identifier http://hdl.handle.net/10603/219205
 
Language English
 
Relation —
 
Rights university
 
Format 194p.
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DVD
 
Coverage —
 
Publisher Pilani
Birla Institute of Technology and Science
Civil Engineering
 
Source University