Title: Mechanical Responses of Polymer Concrete Submerged in Acidic Solution

Author(s): M. Bastami, M. Abbasnejadfard, M. Aslani, M. Abbasnejadfard, and R. Hayatiani

Publication: Materials Journal

Volume: 121

Issue: 1

Appears on pages(s): 79-92

Keywords: acidic environment; constitutive equation; energy dissipation; monotonic and cyclic tests; unsaturated polyester polymer concrete (UPPC)

DOI: 10.14359/51739202

Date: 1/1/2024

Abstract:
environments during their operation time. The aim of this study is to investigate the effect of sulfuric acid on the mechanical characteristics of PC. In this context, specimens were submerged in 5 and 15% sulfuric acid solutions (named SP5 and SP15, respectively) up to 180 days and then subjected to monotonic and cyclic compressive and tensile loadings. Results demonstrated that the specimens that were immersed in 15 vol% of sulfuric acid (MC15 and MT15) had the greatest losses in compressive and tensile strength, which were 33% and 21% (70 and 8 MPa), respectively, compared to the control specimens. Peak strain, compressive strength, and energy absporption capacity (EA) for MC15 are approximately 1.6, 2, and 1.7 times higher than corresponding values for normal concrete. Corroded PC specimens still have a substantially higher strength and energy absorption capacity than cement-based concrete. Based on the obtained results, stress-strain relationships were proposed for SP5 and SP15 in compression and tension.