Utilization of Lightweight Brick Waste Material As a Mixture of Laston AC - WC

Abstract

The use of lightweight bricks that are used as walls in buildings is waterproof and strong in bearigng the burden on the building flor, but after the building is demolished, the demolition of the building is recycled to function as a pavement material on the road surface as a mixture of Laston AC – WC, so waste from the building is functioning again and is not just thrown away.In this study using lightweight brick building waste material as a filler so that this demolition waste produces a positive value for building demolition waste. As for designing the Laston AC – WC using coarse and fine aggretes from Bili – Bili Gowa Regency with 60/70 penetration asphalt, the mixture is substituted with Cement to get a Conventional Marshall tes and Immertion to get a Time Strenght Index (IKS) as well as in the AC – WC laston mixture through marshall Immersion testingThis research methodology is carried out in the from of testing the characteristics of coarse aggregates and fine aggregates, fillers and asphalt that meet the specification standars and then made a mixture composition design then making test specimens that produce a mixture of Laston AC – WC and then testing to obtain the characteristics of Conventional Marshall. And to get the Marshall Immersion, test Immersion is done in determining the immersion Index (IP) / Residual Strength Index (IKS).The results of this experimen wiht a combination of lightweight brick filler 0%: 100% Cement filler, 25% lightweight brick fille : 75% Cement filler, 50% lightweight brick filler : 50% Cement filler, 75% lightweight : 25% Cement filler, 100% lightweight : )% Cement filler, characteristics at optimum conditions for mixture of Laston AC – WC use 100% lightweight brick waste then VIM 4,18%, VMA 15,10%, Stability 2400,41 kg, Flow 3,40%, Marshall Quantien (MQ) 706,30% and IKS 92,31%.