팽창재 혼입율 변화에 따른 콘크리트의 특성에 관한 연구

A Study on the Properties of Concrete with the Variation of Addition Ratio of Expansive Additives

The objective of this study is to develop the non crack ready mixed concrete and the high quality concrete under various addition ratios of expansive additives. According to the experiment results, when expansive additive are mixed in concrete mixture by about 6% per cement contents, in W/B of 45~55%, it is found that the strength increase and the shrinkage compensation can be achieved by about 2~3 times. And it is considered to produce high quality concrete and non crack ready mixed concrete.