Determine the creep deformation of Geopolymer concrete manufactured in Vietnam

Abstract

Geopolymer concrete (GPC) is determined to be environmentally friendly concrete, using GPC will reduce CO2 emissions. In the world and in Vietnam, there have been studies on the material composition of GPC, mechanical properties such as compressive strength, tensile strength, elastic modulus, environmental effects... around the world. Research on creep of GPC is still limited and gives different results when compared to ordinary concrete (OPC) with the same compressive strength. In Vietnam, there is currently no research on creep of GPC. This article presents the experimental results of creep of GPC manufactured at Hanoi University of Civil Engineering. The results show that the coefficient found after 180 days is equal to 2,9 and larger than the calculated results according to the standard. AASHTO LRFD 2017 with conventional concrete of the same strength.

Key word: Geopolymer concrete; GPC; creep.