Experimental investigation of the effect of fly ash and perlite on hydration temperature in self-compacting concrete

被引：0

作者：

Gandage A.S. ^{[1
]}

Ram V.V. ^{[2
]}

机构：

[1] School of Construction Management, National Institute of Construction Management and Research (NICMAR), Maharashtra, Pune

[2] Department of Civil Engineering, BITS Pilani Hyderabad Campus, Telangana, Hyderabad

来源：

Asian Journal of Civil Engineering | 2023年 / 24卷 / 8期

关键词：

Fly ash; Hydration; Perlite; Self-compacting concrete (SCC); Temperature;

D O I：

10.1007/s42107-023-00728-9

中图分类号：

学科分类号：

摘要：

The cement hydration reaction is an exothermic reaction characterised by a rise in temperature within concrete during its setting phase. This is significant in the case of self-compacting concrete (SCC), which has a high cement content and low water–cement ratio. An experimental investigation was undertaken to measure the temperature developed during the setting of M-40 grade SCC mix with crushed sand. Mix A without any powder addition, Mix B with 20% fly ash as a cement replacement material and Mix C with 20% fly ash as a cement replacement material and 5% perlite as a fine aggregate replacement were studied. The cube specimens corresponding to the three mixes were observed for a period of 48 h, and the temperatures observed during the setting phase of the concrete mixes were plotted. The maximum cube temperature for Mix B was 3% lower than the maximum cube temperature for Mix A, whilst for Mix C, the value was 7% lower than the maximum temperature recorded for Mix A. The addition of fly ash and perlite reduced the temperature due to the hydration reaction. © 2023, The Author(s), under exclusive licence to Springer Nature Switzerland AG.

引用

页码：3509 / 3520

页数：11

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