| Title |
A Study on the recycled fine aggregate and Properties of mortar by the dry-production with Cyclone |
| Authors |
Lee Sea-Hyun ; Shim Jong-Woo |
| Keywords |
waste concrete ; recycled fine aggregate ; recycled aggregate mortar ; cyclone ; dry-production process |
| Abstract |
This study is intended for how to utilize the recycled fine aggregate which is produced by concrete wastes. It analyzes the quality of the fine aggregate which is reproduced through a dry production process with cyclone, and comprehends the characteristics of mortar using the recycled fine aggregate to review whether it can be put to practical use for concrete. The conclusions of the study are as follows The recycled fine aggregate through the dry production process with cyclone shows the low rate of absorption and impurity content after the cyclone process. It shows that its density is 2.37, absorption rate is 4.8 and stability is 5.1% and less. Therefore, it satisfies the standards of KS F 2573(recycled aggregate for concrete) as the first grade. The compressive strength of mortar using the dry recycled fine aggregate tends to be reduced according to the increase of the mixing rate of recycled fine aggregate at the beginning, but as time passes, it shows that the compressive strength of mortar |