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http://dx.doi.org/10.14190/JRCR.2021.9.4.585

Characteristics of Compressive Strength Development of High Strength Cement Composites Depending on Its Mix Design  

Jeong, Yeon-Ung (Construction Technology Research Center, Korea Conformity Laboratories)
Oh, Sung-Woo (Construction Technology Research Center, Korea Conformity Laboratories)
Cho, Young-Keun (Construction Technology Research Center, Korea Conformity Laboratories)
Jung, Sang-Hwa (Construction Division, Korea Conformity Laboratories)
Kim, Joo-Hyung (Construction Technology Research Center, Korea Conformity Laboratories)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.9, no.4, 2021 , pp. 585-593 More about this Journal
Abstract
This study investigates the compressive strength of high-strength cement composites with 64 mixture designs and 2 curing conditions. The cement composites were designed with varying water-to-binder ratios, silica fume content to cement, and binder content per unit volume of cement composite to explore compressive strength development depending on its mix design. An increase in the water-to-binder ratio decreased the compressive strength of the composites, having consistency with the trend in normal concrete. The compressive strength increased with ages at an ambient curing temperature, but it was not identified at high-temperature curing. The compressive strength development was negligible in case that silica fume content to OPC is 15%~25%, but a decrease in the con ten t below 15% reduced compressive stren gth. It was more obvious in the specimen of low water-to-binder ratio. The specimen with 840kg/m3 of binder content per unit volume had the highest compressive strength in this study, and the decrease in binder content reduced the compressive strength of high strength cement composites in low silica fume content.
Keywords
High strength; High performance; Mix proportion; Compressive strength;
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Times Cited By KSCI : 1  (Citation Analysis)
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