ECONOMICAL SELF COMPACTING CONCRETE WITH VARIABLE WATER–CEMENT RATIO

Vadalani Ronak Shantibhai; Parekh Ravi Rakeshkumar; Kotiya Nishant Ramjibhai

Volume : VI, Issue : XII, December - 2017

ECONOMICAL SELF COMPACTING CONCRETE WITH VARIABLE WATER–CEMENT RATIO

Vadalani Ronak Shantibhai, Parekh Ravi Rakeshkumar, Kotiya Nishant Ramjibhai

Abstract :

Self Compacting Concrete (SCC) has ought a great revolution in the field of construction industry since its invention. This happened due to its copious advantages over the conventional concrete. However, drawbacks like relative high cost, bleeding and adverse affects on environment have been hindering the wide usage of self compacting concrete. Therefore this paper investigates different approaches to tackle the disadvantages of SCC. In this experiment, we have framed 3 different mix designs of M20 grade according to European Guidelines for SCC and replaced the cement with high fly ash content of 45% and 50%. We also have taken two different water–cement ratios (0.38 and 0.33) according to which the proportion of the admixture (superplasticizer) used also changes. After that, we have carried out various characteristic test like flow table test, O funnel test, U Box and L Box test to measure its workability and have casted cubes of 15 cm x 15 cm x 15 cm each to check its compressive strength in 3, 7 and 28 days. At the end, we have done cost analysis for each mix design to find out optimum and economical mix design.

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