Open AccessOverview the local barrow material of nickel slag mixture as an aggregate foundation layer
Author(s) -
Sulha,
Umran Sarita
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/622/1/012037
Subject(s) - gradation , california bearing ratio , slag (welding) , compaction , foundation (evidence) , environmental science , aggregate (composite) , materials science , waste management , metallurgy , engineering , geography , archaeology , composite material , computer science , computer vision
Southeast Sulawesi Province has numbered material sources, used as barrow to meet road infrastructure needs. Nickel slag production was a waste material of the nickel mining manufacture carry on to growth in this province. This research is one of the exertions to use waste nickle mining manufacture by mixing local barrow material. The mixture of materials is expected to meet specification of pavement layer for road constructions. This research uses quarry sirtu material in Nanga-Nanga and Lasolo Villages as foundation layer material. The method used is an experimental method on the form of gradation, compaction of modified proctor and CBR test. The result showed that the barrow material with nickel slag composition to material from Nanga-Nanga was 60:40 and Lasolo 50:50 met the grade specification as B class foundation material. Base on the AASHTO classification, this material mixture was included within the A1 category. According to CBR test result with unsoaked compaction conditions, Lasolo material has a CBR value of 26.83% dan Nanga-Nanga material reaches 61.78%. The mixture of material Lasolo is not good enough to be used as a highway barrow material. Whereas mixture Nanga-Nanga with nickel slag is applicable for highway capping layer material.