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Concrete Sandwich Construction for Energy Conservation

出版	Civil Engineering Laboratory, Naval Construction Battalion Center, 1980
URL	http://books.google.com.hk/books?id=htzkWjnkfrIC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN

註釋An abbreviated research study on use of shrinkage-compensating expansive concrete in sandwich-type wall and roof panels containing insulation at mid-thickness is described. The use of expansive concrete is shown to be a technically viable concept for eliminating shrinkage cracking, thus preventing moisture penetration which can reduce insulation effectiveness, cause deterioration of the insulating material, and accelerate steel corrosion. Embeddable resistance strain gages proved to be reliable for measuring expansion and subsequent shrinkage of the experimental panels. As a result of this study, a comprehensive research program is proposed for experimental verification of design and field control measures that will permit the use of shrinkage-compensating cement mortars in sandwich panel construction. (Author).