KAJIAN KUAT TEKAN DAN KUAT LENTUR PADA BETON MUTU FC’35 DITAMBAH FLY ASH DAN ABU SEKAM PADI RICE HUSK ASH

Authors

  • Mardiaman Fakultas Tenik Program Studi Teknik Sipil Universitas Tama Jagakarsa
  • Hikma Dewita Fakultas Tenik Program Studi Teknik Sipil Universitas Tama Jagakarsa
  • Heribertus Narto Fakultas Tenik Program Studi Teknik Sipil Universitas Tama Jagakarsa

Keywords:

fly ash, rice husk ash, compressive and bending strength, fc'35 quality concrete

Abstract

Concrete is a composite material whose main ingredients consist of cement, aggregate (fine and coarse) and water with a certain composition. One of the main ingredients for making concrete is Portland cement. In Indonesia from September 2017 to September 2018, the annual consumption of Portland in Indonesia increased from 47.43 million tons to 49.76 million tons. With the increase in construction development in Indonesia, it requires a lot of provision of Portland cement, while the production of Portland cement in Indonesia will certainly decline from year to year. Therefore promising substitutes are fly ash and rice husk ash, which replace the role of cement. The production of fly ash and rice husk ash can be controlled and used as cement addition to fc'35 quality concrete. This research was conducted in the laboratory of PT. Adhimix Precast Indonesia and lasts for 28 days, starting from the preparation of the concrete material to the compressive test and bending test. The quality of the concrete being assessed is Fc '35 Mpa quality concrete with a planned slump value of 75-100 mm. The results of the variation of the mixture by adding fly ash and rice husk ash as a substitute for cement 0-20% can achieve the planned target which is above 35 MPa. It can be concluded that the addition of fly ash and rice husk ash 0-20 can be used in concrete construction.

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Published

2020-12-18

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