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金属矿山 ›› 2016, Vol. 45 ›› Issue (11): 184-188.

• 综合利用 • 上一篇    下一篇

碳酸钙晶须对碱激发高炉矿渣保温材料性能的影响

邢军,胡世强,赵英良,李浩,邱景平,孙晓刚   

  1. 东北大学资源与土木工程学院,辽宁 沈阳 110819
  • 出版日期:2016-11-15 发布日期:2017-02-15
  • 基金资助:

    基金项目:“十二五”国家科技支撑计划项目(编号:2012BAJ17B01,2012BAJ17B02)。

Effect of Calcium Carbonate Whisker on the Properties of Thermal Insulation Material with Alkali Activated Blast Furnace Slag

Xing Jun,Hu Shiqiang,Zhao Yingliang,Li Hao,Qiu Jingping,Sun Xiaogang   

  1. College of Resources and Civil Engineering,Northeastern University,Shenyang 110819,China
  • Online:2016-11-15 Published:2017-02-15

摘要: 以高炉矿渣为主要原料,氢氧化钠为碱激发剂,双氧水为发泡剂,碳酸钙晶须为改性剂制备新型无机保温材料。探讨了碳酸钙晶须掺量对所制取保温材料物理性能的影响。试验结果表明:以高炉矿渣质量为基准,在碱激发剂氢氧化钠和发泡剂双氧水添加量分别为6%和2%、水固比为0.5 g/mL的情况下,添加3%的碳酸钙晶须的试件(养护时间为28 d)体积密度为0.52 g/m3,抗压强度为1.15 MPa,导热系数为0.081 W/m·K,该材料的物理性能达到保温材料的标准。

关键词: 高炉矿渣, 碳酸钙晶须, 保温材料, 导热系数, 体积密度, 抗压强度

Abstract: Using blast furnace slag as main raw material,NaOH as an activator,hydrogen peroxide as a pore-forming agent,and CaCO3 whisker as a modified material,a new inorganic thermal product was prepared.The influence of CaCO3 whisker dosages on physical properties of the ma-terial was discussed.The test results showed that with the quality of blasé furnace slag as a base mark,the prepared materials with thermal conductivity coefficient of 0.081 W/m·K,compressive strength of 1.15 MPa and bulk density at 0.52 g/m3 were obtained under conditions of NaOH 6%,H2O2 2%,water-solid ratio 0.5 g/mL with the addition of CaCO3 whisker 3% (curing for 28 d).

Key words: Blast furnace slag, CaCO3 whisker, Thermal insulation material, Thermal conductivity coefficient, Bulk density, Compressive strength