ECO DRAINAGE MODEL USING POROUS PAVING BLOCK WITH SIEVE WASTE CORAL FILLER AND PUMICE STONE
DOI:
https://doi.org/10.11113/aej.v15.24032Keywords:
coeficient runoff, paving, grass block, waste, pumice, runoff coefficient.Abstract
Environmental problems in the form of changes in land use have an impact on the degradation of land carrying capacity. Rapid urban growth with various paving materials causes various problems such as reduced water absorption, increased surface runoff and puddles and reduced infiltration and percolation capacity. The most extreme condition of paving use is flooding. In overcoming the problem of reducing the impact on waterproof pavement in residential, office and industrial areas, pavement modification with the eco-drain concept is needed. The eco-drain concept is to use porous paving blocks with fillers. The paving blocks used are grass blocks whose cavities/pores are filled with natural stone in the form of sifted waste rock and pumice. The purpose of the study is to obtain an environmentally friendly pavement model that can reduce surface runoff, prevent puddles and conserve groundwater. The modeling results show an average reduction in surface runoff on paving blocks with sieved waste filler of up to 20%, while with pumice filler the reduction in runoff is greater, up to 25 - 30%. The value of the surface runoff coefficient (C) for hexagonal paving block land cover ranges from 0.327 - 0.492. While the value of the runoff coefficient for porous paving blocks with sieved waste stone filler is: 0.302 ˗ 0.411 and for paving block land cover with pumice filler is 0.267 ˗ 0.396.
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