Feasibility Analysis of Quary Tapinalu Material as Asphalt Concrete-Base Mixed Aggregate in Road Works

Abstract

 Quary Tapinalu is a quarry located in the western part of the Seram district. The material taken from the Wai Tapinalu river is the first time it has been used for Road Structure Capacity Enhancement work. In this study, material feasibility tests will be carried out in the form of 5-10 broken stones, 10-20 broken stones and 20-30 broken stones, sand and stone ash. This research was conducted at the Asphalt Laboratory, Department of Civil Engineering, Ambon State Polytechnic. With reference to the Highway Specification, Revision 2018 2. The data analysis carried out in this study includes abrasion, specific gravity and absorption of coarse and fine aggregates, moisture content, sludge content, sieve analysis and marshall test. Based on the results of testing in the laboratory, abrasion values of 33.38% were obtained, the specific gravity and absorption of coarse aggregates consisting of bulk specific gravity of 2.70, SSD specific gravity of 2.73, apparent specific gravity of 2.78, and absorption of 1.21%, specific gravity and absorption of fine aggregate consisting of bulk specific gravity of 2.53, specific gravity of SSD 2.57, apparent specific gravity of 2.62 and absorption of 1.40%, The proportion of 10-20 mm broken stone is 20%, 20-30mm broken stone is 21%, 5-10mm broken stone is 18%, sand is 12%, and ash is 28%. Marshall's characteristics at the optimal level are 5.5%. From the results of Marshall's analysis on KAO, it was obtained that the VIM value was 4.29%, VMA 15.72%, VFB 72.69%, Flow 3.25 mm, Stability 1866 kg/mm and Marshall Quotient 450.00 kg/mm.