CONCRETE BEING SUPPRESSED IN CRACKING AND ITS MANUFACTURING METHOD

PROBLEM TO BE SOLVED: To provide concrete wherein thermal cracking is effectively suppressed by using a coefficient of linear expansion during a curing step as an indicator, and a manufacturing method of concrete whereby thermal cracking is effectively suppressed by compounding materials selected us...

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Bibliographic Details
Main Authors HISAYOSHI SHOJI, SHIRAISHI RYOTA, TAKAO NOBORU, GOTO TAKAHIRO
Format Patent
LanguageEnglish
Published 19.03.2009
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:PROBLEM TO BE SOLVED: To provide concrete wherein thermal cracking is effectively suppressed by using a coefficient of linear expansion during a curing step as an indicator, and a manufacturing method of concrete whereby thermal cracking is effectively suppressed by compounding materials selected using the coefficient of linear expansion as an indicator. SOLUTION: Cracking in the concrete is suppressed by adjusting the coefficient of linear expansion during the curing step to ≤9.5×10-6/°C, preferably ≤8.0×10-6/°C. In the manufacturing method of concrete, types and amounts of materials and the water-cement ratio are determined so as to achieve a coefficient of linear expansion equal to or below the reference value during the curing step. COPYRIGHT: (C)2009,JPO&INPIT
Bibliography:Application Number: JP20070226514