• Renu

Admixtures are attach to concrete at the time of mixing. It has been erect that the use of admixtures is very important since low quantity may result in loss of fluidity and over quantity could lead to segregation, bleeding etc in concrete. Hence it is necessary to find optimum dosage of superplasticizer for good strength and workability. The paper deals with the quantity requirements of superplasticizer in concrete to get good workability. In this work for preparing concrete 2 brands of easily available Portland Pozzolana Cement and superplasticizer associating to 2 different groups namely polycarboxylate ether (PCE) and lignosulphate (LS) are used. Workability study on concrete with cement to sand ratio 1:1.5 and water cement ratio 0.38 was done using slump cone and flow table test. Compressive strength study on concrete cube were done on concrete mixes with a superplasticizer dosage and a comparative study were done to analyse the recovery in the compressive strength with addition of superplasticizer(PCE & LS).

Polycarboxylate ether, lignosulphate, superplasticizers and concrete.

"Enhancing Of Polycarboxylate Ether And Lignosulphate Based Superplasticizers In Concrete", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.621-627, April-2019, Available :http://www.jetir.org/papers/JETIR1904P96.pdf

"Enhancing Of Polycarboxylate Ether And Lignosulphate Based Superplasticizers In Concrete", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp621-627, April-2019, Available at : http://www.jetir.org/papers/JETIR1904P96.pdf