PENGARUH PENGGUNAAN PASIR GALIAN, PASIR SUNGAI, DAN PASIR LAUT TERHADAP KUAT TEKAN BETON NORMAL

Abstract

Concrete is a construction material that is commonly used for buildings, bridges, roads, etc. Concrete is often used as a construction material because it has advantages, including being relatively cheap, durable, and requiring no maintenance costs. This research aims to: (1) Find out the difference in compressive strength of concrete when using certain types of sand. (2) Knowing the most optimum type of sand for the compressive strength value of the planned concrete. This research method is an experimental study carried out at the DPUPR Laboratory of Banten Province. This research method uses SNI 15-2039-2004 and the fine aggregate used in this research comes from excavated sand, river sand, and sea sand. The test objects used in this research were cylindrical, with compressive strength tests carried out at the age of 28 days. Based on the research results, it can be concluded that the use of certain types of sand can be concluded that the use of certain types of sand has an impact on the compressive strength value of concrete aged 28 days with a design compressive strength of 25 MPa. When using quarry sand, it has an average compressive strength value of 15.528 MPa, when using river sand, it has a compressive strength value of 18.066 MPa and when using sea sand, it has a compressive strength value of 20.056 MPa. The results of the compressive strength of excavated sand, river sand, and sea sand reached the design compressive strength, however, the use of sea sand showed values close to the optimum compressive strength