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http://dx.doi.org/10.4334/JKCI.2002.14.1.033

Properties Vacuum · Reduced Air pressure Concrete  

이세현 (한국건설기술연구원 건축연구부)
심종우 (한국건설기술연구원 건축연구부)
서치호 (건국대학교 건축공학과)
Publication Information
Journal of the Korea Concrete Institute / v.14, no.1, 2002 , pp. 33-40 More about this Journal
Abstract
Vacuum concrete manufactured by vacuuming and decompressing fresh concrete. It is known to have improvement on abrasion and strength by making a structural confinement through elimination of internal gap. It has been implemented on buildings floors, concrete dam, etc. in developed countries. This study was aimed to monitor changes in physical characteristics such as strength and slump of concrete influenced by changes of vacuum, decompression level and combination condition during concrete manufacturing process. The results are as follows: It is indicated that decompressed concrete shoved increase in unit weight and compressive strength by compact compression phenomenon influenced by decrease in internal gap caused by diminishing oxygen. However, continuous research is necessary to resolve problems on construction, design and durability.
Keywords
vacuum concrete; decompression; durability; compressive strength;
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