Incorporation of phase change materials in cementitious systems via fine lightweight aggregate

被引：148
作者：
Sakulich, A. R. [1 ]
Bentz, D. P. [1 ]
机构：
[1] NIST, Engn Lab, Gaithersburg, MD 20899 USA
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2012年 / 35卷
关键词：
Phase change material; Composite; Freeze/thaw; Lightweight aggregate; THERMAL-ENERGY STORAGE; PROTECTED PASTE VOLUME; SERVICE LIFE; CONCRETE; CONSTRUCTION; BUILDINGS;
D O I：
10.1016/j.conbuildmat.2012.04.042
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
A new technique to extend the service life of bridge decks, by reducing freeze/thaw damage through the incorporation of phase change materials (PCMs), has been investigated. The impregnation of two lightweight aggregates (LWAs) with four different PCMs was quantified, and compressive strength, isothermal calorimetry, and thermal property analyses were used to determine the effects of PCM incorporation on the physical properties of mortars. Physical and thermal property data were used to refine a previously-developed model and determine locations in the United States where PCM incorporation to reduce freeze/thaw damage may be a viable technology. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：483 / 490
页数：8
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