| Title |
An Experimental Study on the Lightweight Aggregate Concrete Using Meta Kaolin and Cement Kiln Dust |
| Authors |
Yim Jin-Hyuk ; Kim Sang-Heon ; Kim Seh-Hwan ; Ji Suk-Won ; Choi Soo-Kyung ; Seo Chee-Ho |
| Keywords |
Lightweight Aggregate ; Lightweight Aggregate Concrete ; Meta Kaolin ; Cement Kiln Dust |
| Abstract |
In this study, we analyzed properties of lightweight aggregate concrete using Meta Kaolin(MK) and Cement Kiln Dust(CKD) by way of lightweight and strength promotion. A decision of basic mixing ratio is needed at the time of lightweight aggregate concrete production using MK and CKD. A decision of basic mixing ratio has been done based on the strength special quality test of mortar. It was changed MK 10, 20, 30%, CKD 5, 10, 15, 20% by the admixture of the cement. According to results, at the lightweight aggregate concrete using MK and CKD, it was confirmed that the slump and slump flow value were reduced recording the percentage of MK and CKD replacement would increase. Unit volume weight of lightweight aggregate concrete was decreased as increase of MK and CKD replacement due to the density of MK and CKD were lower than the one of cement. Compressive strength and tensile strength at batches that replaced MK with CKD appeared higher than batches that replaced only MK. And the optimum replacement rate that drew through experiment results was MK 10%, CKD 5～15%. |