Residual Strength and Thermal Conductivity of Self-Compacting Concrete with Recycled Expanded Polystyrene Subjected to High Temperatures

Document Type

Article

Publication Title

Advanced Materials Research

Abstract

One of the most important processes of physical deterioration in concrete is the exposure to high temperatures that influences its durability and stability during life service. In addition, if selfcompacting concrete-SCC is formed by lightweight aggregates, such as expanded polystyrene-EPS, it is necessary to analyze its behaviour after it has been exposed to thermal conditions. This paper shows research evaluating the effect of EPS on the mechanical properties of SCC at high temperatures. This study evaluated mechanical and physical properties, including residual compressive strength and thermal conductivity after being subjected to 22ºC, 150ºC, 350ºC, 500ºC and ISO 834. Experimental results showed that the loss of residual compressive strength of the specimens up to 350ºC is almost insignificance, but it will be reduced by 49% and 70% when temperatures increase up to 500ºC and 700ºC respectively. EPS contributes to lightness, thermal insulation, and commitment to the environment in lightweight SCC.

First Page

15

Last Page

23

DOI

https://doi.org/10.4028/p-6klsa7

Publication Date

2022

Link to Full Text

Share

COinS