Pemanfaatan Limbah Serbuk Gergaji Kayu Jati (Tectona grandis) Sebagai Bahan Campuran dalam Pembuatan Paving Block Porous

Abstract

The growth of development that continues to increase in each region results in reduced water catchment areas, to overcome this it is necessary to create artificial recharge. Artificial infiltration aims to preserve groundwater as a source of life to be maintained, for reasons of beauty many building service users prefer paving blocks as an alternative to pavement covering the ground surface, installations that have gaps on the sides of the paving can transmit water by 30-50% . Paving block is a building material composed of portland cement, aggregate, water, with or without additives but does not reduce the quality of the paving itself. Porous paving blocks are paving blocks made from added materials in the form of biomass waste, one of which is teak wood sawdust. This research was conducted to make porous paving blocks with quality standard D, which are used for parks floor and other uses. The composition of the materials used were cement and sand (1:3), added with teak sawdust in the treatment of P1 as much as 2%, P2 as much as 4%, P3 as much as 6%, and P4 as much as 8% of the total weight of the material 2.5 kg. Based on (SNI 03-0691-1996), paving block sizes have a minimum thickness of 60 mm with a tolerance of ±8%. The porous paving block produced meets SNI standards with side lengths of 100 mm and thicknesses varying between 56 – 72 mm. Paving blocks with quality standard D have a minimum compressive strength value of 8.5 MPa and a maximum water absorption capacity of 10%. The results of this research shown the paving block P1 treatment has an average compressive strength value of 16.05 MPa with an average water absorption capacity of 6.89% which are in paving block type D quality standard range. Keywords: Leachate, Paving Block Porous, Teak Wood Sawdust, Waste.