碳酸钙晶须对碱激发矿渣力学和热稳定性能的影响

发布时间：2018-02-11 03:27

  本文关键词： 碱激发矿渣 碳酸钙晶须 力学性能 热稳定 微观结构　出处：《硅酸盐通报》2017年02期 　论文类型：期刊论文

【摘要】：为探讨CaCO_3晶须对碱激发矿渣的强化机理,本文研究了不同晶须掺量(0%~9%)对碱激发矿渣力学和热稳定性能的影响,研究结果表明:CaCO_3晶须可通过减少基体的微裂隙从而显著提高碱激发材料的力学性能;当晶须用量为6%时,强化效果达到最佳,碱激发材料的抗压和抗弯强度分别提高了22.7%和79.9%,另外由于CaCO_3晶须在低于650℃时具有较高的热稳定性,因此,在此温度区间内掺加晶须的碱激发材料的热稳定性得到了显著强化。
[Abstract]:In order to study the strengthening mechanism of CaCO_3 whisker on alkali-excited slag, the effect of different whisker contents on the mechanical and thermal stability of alkali-activated slag was studied in this paper. The results show that the mechanical properties of alkali excited materials can be significantly improved by reducing the microcracks in the matrix, and the strengthening effect is optimal when the amount of whisker is 6. The compressive strength and flexural strength of alkali excited materials were increased by 22.7% and 79. 9, respectively. In addition, the thermal stability of CaCO_3 whiskers with whiskers was significantly strengthened in this temperature range because of their high thermal stability at lower than 650 鈩，

本文编号：1502104