@thesis{thesis, author={GIOFANDA KEVIN and Yuhanah Tri}, title ={PENGARUH ABU SEKAM PADI SEBAGAI SUBSTITUSI SEMEN DAN VARIASI FAS DENGAN GRADASI SERAGAM PADA BETON POROUS}, year={2021}, url={http://156.67.221.169/4785/}, abstract={Indonesia has a fairly high rainfall in various areas including the city of Jakarta. Some of this rain can cause flooding due to inadequate water catchment areas and runoff of rainwater flowing on roads due to clogged drainage channels. One of the innovations to overcome this problem is a new type of concrete, namely porous concrete. Made from a mixture of coarse aggregate, cement, rice husk ash, and water. As a result of not using fine aggregate, pores are created in porous concrete. It is expected to be able to reduce waterlogging in urban areas. A study was conducted on "The Effect of Rice Husk Ash As Cement Substitution And Variations Of FAS With Uniform Gradation In Porous Concrete". From the results of the study of porous concrete variations FAS 0.3; 0.35 ; 0.4 for compressive strength at 28 days with values of 9.76 MPa, 8.09 MPa, and 6.24 MPa. The results of the FAS variation study were 0.3; 0.35 ; 0.4 for compressive strength found at the age of 7 days with a value of 9.38 MPa, 7.35 MPa and 6.20 MPa. The results of the FAS variation study were 0.3; 0.35 ; 0.4 for the flexural strength test at the age of 28 days, namely 1.11 MPa, 1.06 MPa, 1.03 MPa. From the results of the FAS variation test 0.3 ; 0.35 ; 0.4 for infiltration on day 28 with a value of 0.53 cm/s, 0.71 cm/s and 0.94 cm/s.} }