ANALISIS KUAT TEKAN BETON YANG MENGGUNAKAN KERIKIL ALAM SEBAGAI AGREGAT KASAR DENGAN BAHAN TAMBAH GLENIUM

Abstract

The development of construction in Indonesia occurred so fast, many studies have been done to develop construction technology ranging from construction materials to technology used in the construction itself. The development of these construction materials can be seen from the many types of added materials used as additives in the normal concrete mortar. These added ingredients aim to improve the quality of concrete to be better. This study aims to study and analyze the addition of natural pebbles to the concrete mixture on the effort to increase the compressive strength of concrete. This research was conducted in the laboratory of Civil Engineering University of Bosowa for four months. The number of normal concrete test objects as much as 20 pieces and concrete variations of 21 pieces with dimensions of cylinders size 15x30. This concrete soaking process is done for 28 days. Knowing the optimal value of compressive strength obtained from the composition of natural pebble additions of 20%, 40%, and 60% and the addition of Glenium by 1% of every 1 kg cement.From the test has been obtained concrete compressive strength of natural gravel variation with the addition of Glenium is 0% = 21,80 Mpa, 20% = 16,42 Mpa, 40% = 15,29 Mpa, & 60% = 9.62 Mpa. The concrete strength of concrete variation of natural gravel without Glenium is 20% = 16,14 Mpa, 40% = 14,72 Mpa, and 60% = 9,06 Mpa.