Kuat Tekan Dan Kuat Lentur Beton Gepolimer Fly Ash Bottom Ash (Faba) Hybrid Variasi Extra Water/Faba

Abstract

Geopolymers are an alternative cement replacement, made from industrial waste that is rich in silica and alumina, such as fly ash bottom ash. The geopolymerisation bond can be
activated by the activator solution and the curing system at high temperatures. This study utilizes fly ash bottom ash as a geopolymer material and uses an innovative ambient curing
ease application in the field with additional PCC. This study aims to study the compressive strength and flexural strength of hybrid geopolymer concrete after 28 days of curing with variations of extra water/FABA 0.20 and 0.23. The test results show that the compressive
strength of the extra water/FABA variation of 0.23 has the highest strength value of 15,56 MPa. While the compressive strength of the extra wate /FABA variation of 0.20 has a
compressive strength value of 14,62 MPa. The flexural strength value of the extra water/FABA variation of 0,23 has the highest value of 3,08 MPa. While the flexural strength value of the hybrid geopolymer concrete variation of extra water/FABA 0,20 is 2,81 MPa.
Keywords : hybrid geopolymer concrete, fly ash bottom ash, PCC, extra water/FABA.