Volume : 5, Issue : 5, May - 2016

STUDY OF STRENGTH DEVELOPEMNET IN PERVIOUS CONCRETE MADE WITH OPC BY REPLACING IT WITH GGBS

Prof Tanveer Asif Zerdi, Hamid Ali, Mahmadmosin, Mohd Abdus Samee, Tazeem Ul Haq Zerdi

Abstract :

<p>&nbsp;Water is a basic source of living and its wastage may lead to its scarcity. Pervious concrete helps in preventing large amount of water waste by its percolation it into the ground. In many developed countries, the use of pervious concrete for the construction of pavements, car parks and driveways is becoming popular. In order to develop material specification for pervious concrete, it is necessary to conduct testing to evaluate its performance. The effect of paste density on properties of hardened concrete by addition of various cementitious admixtures such as GGBS is assessed in this paper. Ground Granulated Burnt Slag (GGBS) are chosen mainly based on the criteria of cost and their durable qualities., Not only this, Environmental pollution can also be decreased to some extent because the emission of harmful gases like carbon monoxide &amp; carbon dioxide are very limited. This paper mainly focuses on the compressive strength of the pervious concrete. To investigate the compressive strength, &ldquo;Cubes&rdquo; of size 150mm x 150mm x 150mm are prepared and cured at a regular interval of 3,7,14 and 28 days, the specimens were tested I compression testing machine. Pervious concrete is made by replacing cement by GGBS to the extent of 10% by strength tests were carried out. Different concrete mix proportions such as 1:4, 1:6 and 1:8 are prepared to the check the compressive strength of pervious concrete. The results indicate the pervious concrete containing 10% GGBS can achieve compressive strength of 9.95 N/mm2, 9.46 N/mm2, 6.20 N/mm2 for the proportion of 1:4, 1:6 and 1:8 for 28 days of curing respectively, whereas the strength of pervious concrete for normal PPC cement without mixing any admixture are 9.14 N/mm2, 5.92 N/mm2, 4.28 N/mm2 for 28 days of curing respectively.</p>