The effect of curing relative humidity on the microstructure of self-compacting concrete

被引：15

作者：

Aparicio, Sofia ^{[1
]}

Martinez-Ramirez, Sagrario ^{[2
]}

Molero-Armenta, Miguel ^{[1
]}

Fuente, Jose V. ^{[3
]}

Hernandez, Margarita G. ^{[1
]}

机构：

[1] ITEFI CSIC, Inst Tecnol Fis & Informac Leonardo Torres Queved, C Serrano 144, Madrid 28006, Spain

[2] Inst Estruct Mat CSIC, C Serrano 113 Bis, Madrid 28006, Spain

[3] Parque Tecnol, AIDICO, Inst Tecnol Construcc, Avda Benjamin Franklin 19, Paterna 46980, Valencia, Spain

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2016年 / 104卷

关键词：

Self-compacting concrete; Microstructure; Relative humidity; NMR; Micro-Raman; C-S-H; HYDRATED PORTLAND CEMENTS; MICRO-RAMAN SPECTROSCOPY; NMR; LIMESTONE; AL-27; SI-29; TEMPERATURE; ALUMINUM; FILLER;

D O I：

10.1016/j.conbuildmat.2015.12.057

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A study was conducted to investigate the effect of the curing relative humidity on the microstructural properties of SCC with limestone filler. Two curing conditions were considered with humidities of 98% and 70%. Three microstructural techniques were employed to study the hydration: TGA, Micro-Raman spectroscopy and NMR. It was found that the samples cured at 70% humidity present more tetrahedrally coordinated aluminium since more aluminium is taken up by the C-S-H gel and the transformation of ettringite to AFm is promoted. The samples cured at 98% humidity are more hydrated but present lower mean chain lengths of the C-S-H gel. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：154 / 159

页数：6

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