Title An Experimental Study on the Strength Increase of Concrete Surface by the Holed Molds (2)
Authors Jaung Jae-Dong
Page pp.71-78
ISSN 12269107
Keywords Concrete ; Holded Molds ; Compressive Strength ; Unit Weight ; Ultra Sonic Velocity ; Speed of Carbonation.
Abstract Although higher water cement ratio makes concrete workable, the durability is strongly reduced. Recently there are some ideas to use holed molds in order to take off the surplus water form the surface after casting the concrete. In this paper, with measuring the amount of water form concrete surface, water cement ratio, compressive strength, unit weight, ultra sonic velocity and a speed of carbonation, and these measured date is expected to helping for practical use of The holed molds.