Study Of Mix Design For High Performance Concrete
In present research work a thorough study and analysis of Mix Design of High Performance Concrete has been
done. Initially VSI Coarse Aggregate ( having size 20 & 10 mm ) and VSI Crushed Stone Sand, Pozzocrete-100 and
Pozzocrete-60 Fly Ash Samples and Microsilica 920 D are collected. In the first phase of research study, for High
Performance Concrete Mix design, total 27 trial mixes have been carried out by using 10 mm VSI aggregate along with
75%,70%,65% Cement and fly ash replaced in three different percentage i.e. 25, 30 & 35 % and microsilica replaced in two
different percentage i.e. 5% & 10%. In second phase using combination of 20 mm and 10 mm VSI aggregate, 8 trial mixes
has been carried out. In Second phase P-60 & P-100 type of fly Ash and microsilica is utilized in different percentage to
achieve the targeted strength (M-80). Initially aggregate proportioning was done on maximum density approach. Trial mixes
were carried out to fix the water content, sand percent and required slump. After finalizing the water content, sand percent
and slump, final mixes were run and specimens casted. Cubical specimens of size 150 mm X 150 mm were cast for
compressive strength, 150 mm X 150 mm cylinders for permeability test. The specimens were tested at 7 & 28 days age for
Compressive strength and 28 days age for Permeability test. Results of all the tests were thoroughly studied and analyzed.
Keywords— Fly ash, Microsilica, Aggregate.