2017 : The Effect of Corrosive Environment on Geopolymer Concrete Tensile Strength

Ir. Boedi Wibowo CES
Ir. Srie Subekti MT
Ir. Muhammad Sigit Darmawan M.Eng.Sc
Totok Ruki Biyanto S.T., M.T., Ph.D.
Ridho Bayuaji ST., MT., Ph.D.


Abstract

This study has the purpose to explore the potential of geopolymer concrete tensile strength in particular on the effects of corrosive environments. Geopolymer concrete, concrete technology used no OPC that has advantages, one of which is durability, especially for corrosive seawater environment. In addition, geopolymer concrete with polymerization mechanism does not require large energy consumption or an environmentally friendly concept. Geopolymer concrete in this study is using a type C fly ash from PT. International Power Mitsui Operation & Maintenence Indonesia (IPMOMI) Paiton. The type of alkaline activator used NaOH (14 molar) and Na2SiO3. Coarse and fine aggregate used are local aggregate. Geopolymer concrete molded test specimen with dimensions of (10 Ã? 20) cm cylinder, further heating and without heating, then maintained at room temperature and seawater up to 28 days. Then to …