【正文】
出峰值約為72~74 ppm,并且在11~14 ppm的峰值相對(duì)增加。圖15 水化3天和90天的CSH中的Al[4][6]的相對(duì)含量 在圖14所示的光譜中進(jìn)一步分析NUTS的意義,以及從27Al MAS NMR光譜中獲得的反褶積的結(jié)果總結(jié)于表3中。水化一段時(shí)間后,Al[4]1和Al[6]1分別顯著增加了約為34%和40%。相同水化時(shí)間,[6]相對(duì)含量從高到低的順序是:SC3>SC2>SC1 。根據(jù)本文的觀點(diǎn),從圖13中得出的結(jié)論是“高含量的Ca(OH)2在赤泥煤矸石石灰體系漿體中不利于非蒸發(fā)含水量的不斷增加“能被進(jìn)一步解釋。在所有情況中, 。參考文獻(xiàn)[1]D. Ren, Y. Mao, Comprehensive utilization of red mud, China Nonferrous Met. (2002) 57–588 (in Chinese).[2]J. Pera, R. Boumaza, J. Ambroise, Development of a pozzolanic pigment from redmud, . Res. 27 (1997) 1513–1522.[3], H. Sun, H. Li, Effect of heat treatment temperature on cementitious activity of red mud, Light Met. 22–25 (2006)8 (in Chinese).[4] X. Liu, H. Sun, X. Feng, N. Zhang, X. Bai, Study on the thermal activation technics of red mud, Rare Met. Mater. Eng. 36 (2007) 983–9868 (in Chinese).[5], H. Sun, Y. Sun, N. Zhang, Correlation between 29Si polymerization and cementitious activity of coal gangue, J. Zhejiang Univ. Sci. 10 (2009) 1334–1340.[6]X. Song, C. Gong, D. Li, Study on structural characteristic and mechanical property of coal gangue in the activation process, J. Chin. Ceram. Soc. 32 (2004) 358–3638 (in Chinese).[7]D. Li, X. Song, C. Gong, Z. Pan, Research on cementitious behavior and mechanism of pozzolanic cement with coal gangue, Cem. Concr. Res. 36 (2006) 1752–1759.[8]C. Li, J. Wan, H. Sun, L. Li, Investigation on the activation of coal gangue by a new pound method, J. Hazard. Mater. 179 (2010) 515–520.[9]N. Zhang, H. Sun, J. Zhang, J. Wan, Effect of multiplex thermal activation on cementitious behavior of red mudcoal gangue, Rare Met. Mater. Eng. 38 (S2) (2009) 663–6668 in Chinese.[10]N. Zhang, H. Sun, X. Liu, J. Zhang, Earlyage characteristics of red mudcoal gangue cementitious material, J. Hazard. Mater. 167 (2009) 927–932.[11]M. Murat, Hydration reaction and hardening of calcined clays and related minerals. I. Preliminary investigation on metakaolinite, Cem. Concr. Res. 13 (1983) 259–266.[12]. De Silva, . Glasser, Hydration of cements based on metakaolin: thermochemistry, Adv. Cement Res. 3 (1990) 167–177.[13] Silva, . Glasser, Pozzolanic activation of metakaolin, Adv. Cement Res. 4(1992) 167–178.[14]. De Silva, . Glasser, Phase relations in the system CaO―Al2O3―SiO2―H2O relevant to metakaolincalcium hydroxide hydration,