| 水泥-矿渣体系两类C-S-H凝胶体积分数的定量计算 |
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| 引用本文： | 孙国文. 水泥-矿渣体系两类C-S-H凝胶体积分数的定量计算[J]. 石家庄铁道大学学报(自然科学版), 2013, 0(4): 91-97 |
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| 作者姓名： | 孙国文 |
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| 作者单位： | [1]石家庄铁道大学材料科学与工程学院,河北石家庄050043 [2]东南大学材料科学与工程学院,江苏南京211189 |
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| 基金项目： | 国家自然科学基金（51108282） |
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| 摘 要： | 水泥一矿渣二元体系水化产物体积分数的定量计算是理论预测其微结构发展的重要基础。根据水泥一矿渣水化反应特征，文中给出了详细的计算表达式；采用热重一差示扫描量热（TG-DSC）综合分析手段来验证所提表达式的合理性，并根据Jennigs—Tennis模型（简称J—T模型），给出了低密度和高密度C-S—H凝胶体积分数的定量计算公式，对水泥．矿渣二元体系中两种凝胶的相对量进行定量计算。结果表明：水泥一矿渣二元体系中矿渣完全水化的最佳掺量为54．4％，两种凝胶的相对量随矿渣掺量的增加而增加。
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| 关 键 词： | 硅酸盐水泥 矿渣 体积分数 低密度C-S-H凝胶 高密度C—S-H凝胶 |
Quantitative Calculation on Volume Fraction of Two Types of C-S-H in Portland Cement |
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| Sun Guowen. Quantitative Calculation on Volume Fraction of Two Types of C-S-H in Portland Cement[J]. Journal of Shijiazhuang Railway Institute(Natural Science), 2013, 0(4): 91-97 |
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| Authors: | Sun Guowen |
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| Affiliation: | Sun Guowen1＇2 School of Materials Science and Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China; 2. School of Materials Science and Engineering, Southeast University, Nanjing 211189, China) |
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| Abstract: | Quantitative calculation of volume fraction of hydration products of cement-slag binary system is the important theoretical foundation for predicting its microstructure development. According to the cement-slag hydration characteristics, detailed calculation expressions are given in this paper, and then thermogravimetry-dif- ferential thermogravimetry （TG-DTG） is applied to validate the expressions mentioned above. Furthermore, based on the Jennigs-Tennis model, volume fraction of the low-density and high-density C-S-H in cement-slag are calculated. The results show that the best dosage of slag is 54.4% in cement-slag binary systems and the rel- ative amount of two types of C-S-H increases with the increase in slag. |
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| Keywords: | portland cement blast-furnace slag volume fraction low-density C-S-H high-density C-S-H |
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