| Mechanochemical Processing(MP)에 의한 Cement-fly Ash 계 Mortar의 제조 |
| 이형직, 구자훈, 유인상, 송두규, 정해경, 권혁병, 윤상옥, 이형복1, 이홍림2 |
강릉대학교 세라믹공학과
1명지대학교 세라믹공학과
2연세대학교 세라믹공학과 |
| Fabrication of Cement-fly Ash Mortar by Using Mechanochemical Processing(MP) |
| Hyung-Jik Lee, Ja-Hun Koo, In-Sang Yoo, Doo-Gyoo Song, Hae-Kyoung Joung, Hyouk-Byoung Kwon, Sang-Ok Yoon, Hyung-Bock Lee1, Hong-Lim Lee2 |
Department of Ceramic Engineering, Kangnung National University
1Department of Ceramic Engineering, Myongji University
2Department of Ceramic Engineering, Yonsei University |
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| ABSTRACT |
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Fabrication of mortar containing fly ash for high strength structural material was investigated by using a Mechanochemically Processed Cement (MPC) and/or Fly Ash (MPFA), which was compared to the specimen (at the same fabrication condition of fly ash adding contents (10, 20 and 30 wt%) and curing time (7 and 28 days)) fabricated by using Ball-mill Processed Cement (BPC) and As Received Fly Ash (ARFA) in terms with compressive strength and microstructures. Mortar specimen fabricated by using MPC and ARFA showed 5-11% higher compressive strength than that in the case of using BPC and ARFA, and mortar specimen by using BPC and MPFA represented 10-20% higher compressive strength than that for the case of using BPC and ARFA. Furthermore, mortar specimen fabricated by simultaneously using MPC and MPFA exhibited about 24% higher value of compressive strength than that for the case of using BPC and ARFA, which was considered to be synergic efficiency in increasing compressive strength. Increased compressive strength as above mentioned is considered to be caused by mutually increased affinity between cement and fly ash induced during mechanochemical Processing(MP). |
| Key words:
Mortar, Fly ash, Mechanochemical processing, Microstructures |
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