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稳泡剂对碱矿渣泡沫混凝土性能影响的研究

作者:钱逸文1,焦宝祥2,蔡树元2,许兴1,孟长2

关键字:稳泡剂,对,碱,矿渣,泡沫,混凝土,性能,影,响的,

 
(1.江苏大学 材料科学与工程学院,江苏 镇江  212013;2.盐城工学院 材料科学与工程学院,江苏 盐城  224051)
    摘要:用纤维素醚和糯米浆作为稳泡剂对碱矿渣泡沫混凝土进行改性,用孔结构和比强度等指标探讨其改性的效果。结果表明:分别掺入0.3%纤维素醚和0.4%糯米浆时,其最可几孔径均为0.5 mm,明显小于对照样,且孔径分布均匀,圆度提高;掺纤维素醚的泡沫混凝土,其抗压强度和比强度较对照样最高分别提高25%和20%;掺糯米浆的泡沫混凝土,其抗压强度和比强度较对照样最高分别提高43%和46%。所制备的泡沫混凝土符合预期设计的密度等级为A06、强度等级为FC5的要求。
    关键词:碱激发胶凝材料;泡沫混凝土;糯米浆;纤维素醚
    中图分类号:TU528.2        文献标识码:A        文章编号:1001-702X(2020)03-0111-04
 
Effect of foam stabilizer on properties of alkali activated slag foam concrete
QIAN Yiwen1,JIAO Baoxiang2,CAI Shuyuan2,XU Xing1,MENG Chang2
(1.School of Materials Science and Technology,Jiangsu University,Zhenjiang 212013,China;
2.School of Materials Science and Technology,Yancheng Institute of Technology,Yancheng 224051,China)
    Abstract:The foaming concrete of alkali activated slag was modified by cellulose ether and glutinous rice foam stabilizer. The effect of modification was discussed by means of pore structure and specific strength. Results show that when adding 0.3% cellulose ether and 0.4% glutinous rice pulp,the most probable pore diameter was 0.5 mm,which was obviously lower than that of the reference sample,and the pore size distribution was uniform and the roundness was improved. The compressive strength and specific strength of foam concrete incorporated with cellulose ether gained 25% and 20% maximum,respectively,and those of concrete added with glutinous rice pulp gained 43% and 46% maximum,respectively. The foam concrete conformed to the expected design density grade A06 and strength grade FC5.
    Key words:alkali activated cementitious material,foam concrete,glutinous rice pulp,cellulose ether
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