CAJ | 학술논문

采用X-射线衍射、差热分析、微量热计及压汞测孔仪对公路粉煤灰水泥的水化产物、水化放热曲线、孔尺寸分布进行了研究。实验结果表明，公路粉煤灰水泥的主要水化产物是C-S-H凝胶、AFt及少量的Ca(OH)２。在该水泥的1天水化放热曲线上仅出现了AFt及AFm的形成放热峰，未出现C-S-H凝胶及Ca(OH)２的快速形成放热峰。尽管该水泥的空隙率较高，但水化7天以后大于1000A。的连通大孔体积率较低，而小于500A。的微孔及凝胶孔体积率较高，因此水泥石的结构致密，后期性能较好。
채용X-사선연사、차열분석、미량열계급압홍측공의대공로분매회수니적수화산물、수화방열곡선、공척촌분포진행료연구。실험결과표명，공로분매회수니적주요수화산물시C-S-H응효、AFt급소량적Ca(OH)２。재해수니적1천수화방열곡선상부출현료AFt급AFm적형성방열봉，미출현C-S-H응효급Ca(OH)２적쾌속형성방열봉。진관해수니적공극솔교고，단수화7천이후대우1000A。적련통대공체적솔교저，이소우500A。적미공급응효공체적솔교고，인차수니석적결구치밀，후기성능교호。
The hydrated products and pore size distribution of high road fly ash cements were studied by means of XRD,DTA,Mercury porosimeter,etc.,The experiment results showed that C-S-H gel,AFt were the main hydrated products in high road fly ash cement,but the contents of Ca(OH)２ were lower.The exothermic peaks of the formation of AFt and AFm appeared in hydrated exotermic curves of this cements,while the peaks of C-H-S gel and Ca(OH)２ were not.Although the total porosity of this cement stone were higher,the volume porosity of large pores which sizes were more than 1000A。 were lower after 7 days,the micropores and gel pores which size were little than 500A。 were higher.Thus,the cement stone was fine and close in texture,properties were also higher in late ages.