http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
수화물 소성법에 의한 알루민산삼칼슘 클링커의 합성에 관한 연구
기태경,송태웅 한국세라믹학회 2007 한국세라믹학회지 Vol.44 No.9
For the preparation of tricalciumaluminate (C3material, uneconomical repetition of burning have been necessary to avoid the melting of clinker by eutectic reaction in the systemCaO-Al2O3. In this study, special starting raw materials for the clinker burning were prepared from a mixture of oyster shell andaluminium hydroxide by heating to 1100oC and hydrating at 30oC. The starting raw materials, hardened body with weak hydraulicstrength, were mainly composed of C3AH6 formed by resolution-precipitation mechanism of the system CaO-Al2O3-H2O. By heatingthem, relatively pure C3A clinker could be obtained by one-time burning at the fairly lower temperature than that of conventionalmethod. The easier formation of C3A clinker seemed to be caused by higher compositional homogeneity and stoichiometry of theeffect ofdecomposed moisture on the early-stage crystallization of calciumaluminates. The basic hydration behavior of the clinker was also confirmed.
연약지반 표층혼합처리를 위한 조기강도 발현형 고화재의 개발
기태경 ( Tae Kyoung Ki ),김기훈 ( Ki Hoon Kim ),이병기 ( Byung Ki Lee ),권오봉 ( O Bong Kwon ),김경민 ( Kyoung Min Kim ),박상준 ( Sang Joon Park ) 한국건축시공학회 2013 한국건축시공학회 학술발표대회 논문집 Vol.13 No.2
There is the increasing number of constructing soil or structure on the soft ground during public works. Usually cement or slag cement has been the traditional material for surface soil stabilization method. Recently, early strength development properties of hardening agent is required for driving abilities of execution equipment and shortening of the construction time. Therefore, the purpose of this study is to develop the early compressive strength hardening agent for surface soil stabilization. The study was confirmed performance and availability of hardening agent using early strength type cement and industrial by-product minerals through early strength development properties in accordance with water cement ratio, content of hardening agent for soft soil.