阿利特-硫铝酸盐水泥熟料的气固反应制备及水化性能

发布时间：2018-05-13 23:09

  本文选题：阿利特-硫铝酸盐水泥熟料 + 气固反应　； 参考：《南京工业大学学报(自然科学版)》2017年02期

【摘要】：采用气固反应法制备了阿利特-硫铝酸盐体系水泥熟料。利用X线衍射仪(XRD)、水化量热仪、压汞法(MIP)等技术分析了SO_2气体流量和煅烧温度对水泥熟料矿物组成的影响,以及该体系的水化性能和浆体结构。结果表明:硅酸盐水泥熟料中可引入3CaO·3Al_2O_3·CaSO_4(C_4A_3$)矿物,实现3CaO·SiO_2(C_3S)和C_4A_3$的共存。在SO_2流量为40 mL/min、温度为1 250℃条件下处理硅酸盐水泥熟料30 min可制备C_3S含量52.61%和C_4A_3$含量2.13%共存的阿利特-硫铝酸盐体系水泥熟料。阿利特-硫铝酸盐体系水泥由于C_4A_3$的存在,凝结时间和水化诱导期较硅酸盐水泥短,早期的孔隙率和早期强度均优于硅酸盐水泥。
[Abstract]:Alite-sulphoaluminate cement clinker was prepared by gas-solid reaction. The effects of SO_2 gas flow rate and calcination temperature on the mineral composition of cement clinker were analyzed by means of X-ray diffractometer, hydration calorimeter and mercury injection calorimeter. The hydration properties and slurry structure of the system were also analyzed. The results show that 3CaO 3Al_2O_3 Caso _ 4C _ S _ 4A _ S _ 3) minerals can be introduced into Portland cement clinker to realize the coexistence of 3CaO Sio _ 2C _ 3S) and C _ 4A _ S _ 3S _ 3. When the SO_2 flow rate is 40 mL / min and the temperature is 1 250 鈩，

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