Effect of steam curing system on compressive strength of recycled aggregate concrete-Reference-Cited by-同舟云学术

Effect of steam curing system on compressive strength of recycled aggregate concrete

Published:2024-01-01 Issue:1 Volume:63 Page:
ISSN:1605-8127
Container-title:REVIEWS ON ADVANCED MATERIALS SCIENCE
language:en
Short-container-title:

Author:

Chen Yuzhi¹²,Ning Yingjie³,Chen Xudong²,Xuan Weihong¹,Tang Jianhui²

Affiliation:

1. Architectural Engineering Institute, Jinling Institute of Technology , Nanjing , 211169, Jiangsu Province , China

2. College of Civil and Transportation Engineering, Hohai University , Nanjing , 210024, Jiangsu Province , China

3. Business Division, Zhejiang Communications Construction Group Co., Ltd , Hangzhou , 310051, Zhejiang Province , China

Abstract

Abstract Steam curing prefabrication is a feasible way to promote the application of recycled aggregate in the background of building industrialization. The combined use of slag and fly ash contributes to the comprehensive improvement of both the early and later-stage performance of recycled aggregate concrete (RAC). However, the steam curing regime for RAC composed of slag and fly ash remains unclear, including appropriate curing temperatures and time. In this study, the influences of curing temperatures (20, 40, 60, and 80°C), steam curing time (6, 9, and 12 h) and mineral admixtures (slag powder and fly ash) on the demoulding strength and strength development of RAC were investigated. Based on the Arrhenius formula, the hydration reaction rate was characterized by the development of compressive strength, the apparent activation energy related to the steam curing time was calculated, and the energy-based compressive strength model was proposed to realize the early strength prediction of the steam-cured RAC.

Publisher

Walter de Gruyter GmbH

Link

https://www.degruyter.com/document/doi/10.1515/rams-2024-0044/pdf

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