EXPERIMENTAL STUDY OF THE EFFECT OF FINE AGGREGATE IN PERVIOUS CONCRETE
EFFECT OF FINE AGGREGATE IN PERVIOUS CONCRETE
Abstract
Pervious concrete is categorized as porous concrete due to its pore structure and high permeability. The permeability coefficient generally increases with porosity. A 4.75–12.5 mm coarse aggregate is used to make pervious concrete. An experimental study on the impact of a fine aggregate in pervious concrete is conducted in our investigation. The research mix design is done in accordance with American Concrete Institute 522R-10 and Indian Standard 10262. The proportion of water to cement is kept constant. Also, fine aggregates are added to the mix in increments of 2 %, ranging from 0 to 10 %. After adding a fine aggregate, the measured permeability yields various findings. The permeability of pervious concrete diminishes as fine aggregate is added. Also, various parameters such as compressive strength, porosity, split tensile strength, flexural strength and density are computed and analysed. American Concrete Institute 522R-10 states that designs should not include fine aggregate additions greater than 10 % of pervious concrete mixes. Beyond this point, strength is reduced. The flexural strength, compressive strength and splitting tensile strength of pervious concrete mixtures are all increased at an 8 % sand content.
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