本文關鍵詞： 水化溫度 復合膠凝體系 水化放熱 非蒸發(fā)水含量 力學性能 水化動力學　出處：《硅酸鹽通報》2016年10期 　論文類型：期刊論文

【摘要】：研究了不同水化溫度對礦渣-水泥復合膠凝體系水化反應特性的影響。研究表明:隨著水化溫度的降低,復合膠凝體系的水化放熱速率、非蒸發(fā)水含量、強度均呈現(xiàn)出降低的趨勢,負溫條件下復合膠凝體系的水化反應特性與常溫一致;通過計算獲取各個階段的反應速率曲線,可較好地對由量熱實驗數(shù)據(jù)繪制的復合膠凝體系實際水化速率dα/dt曲線進行分段的模擬;將不同溫度下復合膠凝體系水化放熱量的數(shù)據(jù)轉(zhuǎn)換為水化反應程度α,對既有模型進行驗證。結(jié)果表明,現(xiàn)有模型可較準確的預測低溫下復合膠凝體系的水化反應程度。
[Abstract]:The effects of different hydration temperatures on the hydration reaction characteristics of slag cement composite cementitious system were studied. The results showed that with the decrease of hydration temperature, the hydration heat release rate and non-evaporative water content of the composite cementing system were decreased. The hydration reaction characteristics of the composite gelling system under negative temperature are consistent with those of normal temperature, and the reaction rate curves of each stage are obtained by calculation. The actual hydration rate d 偽 / DT curve drawn from the calorimetric experimental data can be well simulated. The hydration heat release data of composite cementing system at different temperatures were converted into hydration reaction degree 偽, and the existing models were verified. The results show that the existing models can accurately predict the hydration reaction degree of composite cementing system at low temperature.
【作者單位】： 西京學院土木工程學院;中建西部建設北方有限公司;沈陽建筑大學材料學院;
【基金】：西京學院2015院基金(XJ150116)
【分類號】：TU52

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本文編號：1513939