Kualitas Batuan Beku sebagai Bahan Konstruksi pada Daerah Warmare Kabupaten Manokwari

Abstract

Warmare area, based on field appearances, found a lot of igneous rock fragments in the river found at the study site, especially andesite-basaltic rocks which are the constituent lithological units of the Arfak Volcano Formation found at the study site. These rocks are considered to be used as industrial raw materials, especially for basic infrastructure construction materials such as foundations, fills, road paving, dam supports, split concrete mixes and for other industrial base materials. This study aims to determine the quality of igneous rocks included in the Arfak Volcano Formation found in the research area and its surroundings based on the type of utilization. The method used is literature study, field data collection in the form of geological conditions in the research area and rock sampling, then laboratory analysis in the form of compressive strength tests, and petrographic analysis. The compressive strength test used is Uniaxial Compressive Strength, which aims to measure the uniaxial compressive strength of a rock sample in a regular geometry, either in the form of a cylinder, beam or prism in one direction (uniaxial). So that the test results can be classified as rock strength and characteristics. Based on field data taken in the form of Basalt showing a compressive strength value of 881.94 kg/cm2 which can be used as concrete piles referring to the Standard of the Directorate General of Highways (1976), Andesite rocks also found in the study area show a compressive strength value of 430.01 kg/cm2 which can be used as highway concrete.