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http://dx.doi.org/10.4191/KCERS.2002.39.2.126

Fabrication of Cement-fly Ash Mortar by Using Mechanochemical Processing(MP)  

Lee, Hyung-Jik (Department of Ceramic Engineering, Kangnung National University)
Koo, Ja-Hun (Department of Ceramic Engineering, Kangnung National University)
Yoo, In-Sang (Department of Ceramic Engineering, Kangnung National University)
Song, Doo-Gyoo (Department of Ceramic Engineering, Kangnung National University)
Joung, Hae-Kyoung (Department of Ceramic Engineering, Kangnung National University)
Kwon, Hyouk-Byoung (Department of Ceramic Engineering, Kangnung National University)
Yoon, Sang-Ok (Department of Ceramic Engineering, Kangnung National University)
Lee, Hyung-Bock (Department of Ceramic Engineering, Myongji University)
Lee, Hong-Lim (Department of Ceramic Engineering, Yonsei University)
Publication Information
Journal of the Korean Ceramic Society / v.39, no.2, 2002 , pp. 126-134 More about this Journal
Abstract
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).
Keywords
Mortar; Fly ash; Mechanochemical processing; Microstructures;
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