Open AccessMix design challenges of porous concrete pavements modified with mineral admixtures
Author(s) -
D. Tarangini,
B. Radha Kiranmaye,
Dr.P. Sravana,
Dr.P. Srinivasa Rao
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1091/1/012054
Subject(s) - pervious concrete , gradation , superplasticizer , fly ash , compressive strength , materials science , permeability (electromagnetism) , cement , aggregate (composite) , porosity , composite material , geotechnical engineering , engineering , computer science , membrane , biology , computer vision , genetics
Pervious concrete has been gaining importance in pavement constructions and low volume road applications. It has applications in parking lots, footpaths and can be used with other materials to prevent erosion. The main problem of porous concrete pavement is its strength. This mainly depends on its pore structure, cement matrix, aggregate gradation, cement content, admixtures and water/cement ratio. The research aims at determining the compressive strength and permeability of pervious concrete with W/C of 0.34.Variations in aggregate sizes is considered and admixtures like fly ash, micro silica, nano silica and superplasticizer are used. The test results show significant difference in compressive strength with variations in admixtures addition. The results were in good agreement in the case of mixtures with W/C of 0.34 and 3% nano silica with respect to compress ive strengths and permeability.