Abstract: In this technical paper the experiment carried on the compressive strength of various grades of concrete with the replacement of sand by manufactured sand and with the addition of chemical admixture is discussed. Concrete plays a very important role in the construction industry and is being utilized in a large scale. River sand, which is one of the constituent used in the production of conventional concrete, has become expensive and also a scarce material. In view of this there is a need to find an alternative source for the replacement of this river sand, which will be having the same properties of the river sand thus a alternative quarry dust is being selected and is made used in a concrete as an alternative for river sand in addition with the chemical admixtures Polycarboxylic ethers (PCE) and salphonapthalene formaldehyde (SNF). Concrete traditionally comprises of cement, fine aggregate, coarse aggregate and water. An attempt here has been made to replace the fine aggregate with quarry dust with an objective of utilizing the waste material. It is found that quarry dust improves the mechanical properties of concrete when used along with super plasticizers. In fact we need high strength concrete to withstand to the heavy loads in a building. The sand is replaced by manufactured sand by 100% and various chemical admixtures being added to increase the workability of a concrete.
Keywords: Quarry dust, chemical admixture, Workability, Compressive strength, Flexural strength.
Title: Experimental Investigation on Quarry Dust Concrete with Chemical Admixture PCE and SNF
Author: Anil M D, Dr. V Ramesh, Raghavendra Y B
International Journal of Civil and Structural Engineering Research
ISSN 2348-7607 (Online)
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