PENGGUNAAN LIMBAH PADAT PULP GREEN LIQUOR DREGS DAN SLAKER GRITS DARI PT INDAH KIAT PULP DAN PAPER UNTUK APLIKASI PRODUKSI GENTENG BETON
Emrizal Mahidin Tamboesai

Dosen Bidang Kimia Anorganik Jurusan Kimia FMIPA-Universitas Riau
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Riau
Kampus Binawidya Pekanbaru, 28293, Indonesia
emrizaltamboesai[at]gmail.com

Abstract

This study aims to utilize solid waste pulp green liquor dregs and slaker grits by
analyzing the effect of adding solid waste green liquor dregs and slaker grits on water
absorption and tile compressive strength, analyzing the chemical content of solid waste
green liquor pulp dregs and slaker grits and concrete tile products and chemical
morphology of the samples. The method that has been used in this research is pressing.
The results of the water absorption test for concrete roof tiles with the addition of 0%,
5%, 10%, and 15% solid waste green liquor pulp and slaker grits were 8.4%, 6.4%,
7.5% and 9.4%. Testing the compressive strength of concrete tiles with the addition of
0%, 5%, 10%, and 15% solid waste green liquor pulp and slaker grits was 19.0 MPa,
19.7 MPa, 18.6 MPa, 18.3 MPa. The chemical content of solid waste pulp before and
after the finished concrete tile product is in accordance with the building blocks of the
tile which consists of compounds Al2O3, SiO2, Fe2O3 and CaO. From the above test, it
can be concluded that the addition of solid waste pulp can produce quality concrete roof
tiles with reference to the value of SNI 0096-2007, that the maximum water absorption
value of tile is 10% and the compressive strength of roof tiles is at least 6.0 MPa.

Keywords: concrete, pulp green liquor dregs, pulp slaker grits

Topic: Chemistry