JCI Annual Convention in Kyushu

Presentation information

The 45th JCI Technical Conference

A. Material & Construction » Sustainable Concrete (Material aspect)

Sustainable Concrete (Material aspect)Ⅳ

Fri. Jul 7, 2023 10:00 AM - 12:00 PM Room 1 (国際会議室501)

座長:近藤拓也 (土木),鹿毛忠継 (建築)

[1195] Mechanical Properties of Recycled Glass Fine Aggregate Mortar mixed with Mineral Admixtures under ASR Conditions

Hamin EU1, Gyuyong KIM1, Sujeong PYEON1, Jeongsoo NAM1 (1.忠南大学校)

Keywords:recycled glass fine aggregate、mortar、ASR、expansion、mechanical properties

The recycled glass fine aggregate (RGS) causes an alkali-silica reaction (ASR). Various supplementary cementitious materials (SCMs) can reduce ASR expansion of RGS. In this study, the mechanical properties after ASR of RGS mortar mixed with SCMs was evaluated. It was confirmed that the RGS mortar mixed with SCMs decreased ASR expansion. However, the mechanical properties after ASR decreased as reaction days increased. This is because ASR gel was formed inside the microcracks that existed in RGS. Therefore, the ASR gel inside the RGS destroyed the RGS and reduce the mechanical properties.