轻质镁水泥隔墙板的工艺优化
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摘要
以镁水泥为胶凝材料,双氧水为发泡剂,硬脂酸钙为稳定剂,聚丙烯酰胺为增稠剂,采用化学发泡法制备了轻质镁水泥隔墙板.以水灰比、发泡剂添加量、稳定剂添加量和增稠剂添加量作为试验因素,体积密度、压缩强度和弯曲强度作为考核指标,优选出了制备轻质镁水泥隔墙板的最优工艺为:水灰比1.35,发泡剂添加量7‰,稳定剂添加量7‰,增稠剂添加量1.5‰.此时,体积密度为0.60 g/cm~3,压缩强度为9.86 MPa,弯曲强度为2.65 MPa.
Lightweight magnesium cement partition board was prepared by chemical foaming process,in which magnesium cement as cementing material,hydrogen peroxide as foaming agent,calcium stearate as stabilizer and polyacrylamide as thickener.The water-cement ratio,amount of hydrogen peroxide,amount of stabilizer and amount thickener were used as test factors.Bulk density,compressive strength and flexural strength were used as evaluation indicators.The optimal preparation process of the lightweight magnesium cement partition board was as follows:The water-cement ratio was 1.35,the amount of hydrogen peroxide was 7‰,the amount of stabilizer was 7‰,and amount thickener was 1.5‰.At this time,the bulk density was 0.60 g/cm~3,the compressive strength was 9.86 MPa,and the bending strength was 2.65 MPa.
Lightweight magnesium cement partition board was prepared by chemical foaming process,in which magnesium cement as cementing material,hydrogen peroxide as foaming agent,calcium stearate as stabilizer and polyacrylamide as thickener.The water-cement ratio,amount of hydrogen peroxide,amount of stabilizer and amount thickener were used as test factors.Bulk density,compressive strength and flexural strength were used as evaluation indicators.The optimal preparation process of the lightweight magnesium cement partition board was as follows:The water-cement ratio was 1.35,the amount of hydrogen peroxide was 7‰,the amount of stabilizer was 7‰,and amount thickener was 1.5‰.At this time,the bulk density was 0.60 g/cm~3,the compressive strength was 9.86 MPa,and the bending strength was 2.65 MPa.
引文
[1] 张泽平,李珠,董彦莉.建筑保温节能墙体的发展现状与展望[J].工程力学,2007,24(2):121-128.
[2] 中国建筑材料联合会.建材工业“十三五”发展指导意见[J].混凝土世界,2016(10):8-19.
[3] Aktacir M A,Büyükalaca O,Y?lmaz T.A case study for influence of building thermal insulation on cooling load and air-conditioning system in the hot and humid regions[J].Applied Energy,2010,87(2):599-607.
[4] Papadopoulos A M.State of the art in thermal insulation materials and aims for future developments[J].Energy and Buildings,2005(37):78-79.
[5] Wang F,Yang L,Guan L,et al.Microstructure and properties of cement foams prepared by magnesium oxychloride cement[J].Journal of Wuhan University of Technology-Mater.Sci.Ed.,2015,30(2):331-337.
[6] 苏雪筠,苏茂尧.化学发泡氯氧镁水泥防火材料的研究[J].硅酸盐学报,2002,30(10):135-137.
[7] Hung T C,Huang J S,Wang Y W,et al.Inorganic polymeric foam as a sound absorbing and insulating material[J].Construction and Building Materials,2014(50):328-334.
[8] 向帮龙,管蓉,杨世芳.微孔发泡机理研究进展[J].高分子通报,2005,12(2):7-15.
[9] Wang Z,Liu L,Zhou J,et al.Impacts of potassium permanganate (KMnO4) catalyst on properties of hydrogen peroxide (H2O2) foamed porous cement slurry[J].Construction and Building Materials,2016,111:72-76.
[10] 齐伟军,夏春.稳定剂水泥浆流变机理研究[J].混凝土,2005(9):6-10,17.
[11] 张云吃,陈岳敏,郭中光,等.化学发泡法多孔混凝土稳定性的研究[J].混凝土,2013(5):141-43.
[12] Just A,Middendorf B.Microstructure of high-strength foam concrete[J].Materials Characterization,2009,60(7):741-748.
[13] 雷东移,郭丽萍,孙伟.原状脱硫石膏泡沫混凝土的制备与性能研究[J].材料导报,2016,30(10):122-128.
[14] 岳林海,金达莱,徐铸德.共沉淀法合成复合碳酸钙及其形貌和晶型的研究[J].化学学报,2003,61(10):1 587-1 591.
[15] 王路明,冯扣宝,陈雪霏.复合改性氯氧镁水泥泡沫混凝土耐水性能与机理的研究[J].功能材料,2015,46(12):12 009-12 013.
[16] 王永敏,李俊颖,王定勇.不同剂型聚丙烯酰胺对冷沙黄泥土壤持水性能的影响[J].农业工程学报,2010,26(8):96-101.
[17] 杨晓杰,董鹏,马一平,等.聚丙烯酰胺对水泥砂浆塑性收缩开裂性能的影响[J].建筑材料学报,2019,22(1):1-6.
[2] 中国建筑材料联合会.建材工业“十三五”发展指导意见[J].混凝土世界,2016(10):8-19.
[3] Aktacir M A,Büyükalaca O,Y?lmaz T.A case study for influence of building thermal insulation on cooling load and air-conditioning system in the hot and humid regions[J].Applied Energy,2010,87(2):599-607.
[4] Papadopoulos A M.State of the art in thermal insulation materials and aims for future developments[J].Energy and Buildings,2005(37):78-79.
[5] Wang F,Yang L,Guan L,et al.Microstructure and properties of cement foams prepared by magnesium oxychloride cement[J].Journal of Wuhan University of Technology-Mater.Sci.Ed.,2015,30(2):331-337.
[6] 苏雪筠,苏茂尧.化学发泡氯氧镁水泥防火材料的研究[J].硅酸盐学报,2002,30(10):135-137.
[7] Hung T C,Huang J S,Wang Y W,et al.Inorganic polymeric foam as a sound absorbing and insulating material[J].Construction and Building Materials,2014(50):328-334.
[8] 向帮龙,管蓉,杨世芳.微孔发泡机理研究进展[J].高分子通报,2005,12(2):7-15.
[9] Wang Z,Liu L,Zhou J,et al.Impacts of potassium permanganate (KMnO4) catalyst on properties of hydrogen peroxide (H2O2) foamed porous cement slurry[J].Construction and Building Materials,2016,111:72-76.
[10] 齐伟军,夏春.稳定剂水泥浆流变机理研究[J].混凝土,2005(9):6-10,17.
[11] 张云吃,陈岳敏,郭中光,等.化学发泡法多孔混凝土稳定性的研究[J].混凝土,2013(5):141-43.
[12] Just A,Middendorf B.Microstructure of high-strength foam concrete[J].Materials Characterization,2009,60(7):741-748.
[13] 雷东移,郭丽萍,孙伟.原状脱硫石膏泡沫混凝土的制备与性能研究[J].材料导报,2016,30(10):122-128.
[14] 岳林海,金达莱,徐铸德.共沉淀法合成复合碳酸钙及其形貌和晶型的研究[J].化学学报,2003,61(10):1 587-1 591.
[15] 王路明,冯扣宝,陈雪霏.复合改性氯氧镁水泥泡沫混凝土耐水性能与机理的研究[J].功能材料,2015,46(12):12 009-12 013.
[16] 王永敏,李俊颖,王定勇.不同剂型聚丙烯酰胺对冷沙黄泥土壤持水性能的影响[J].农业工程学报,2010,26(8):96-101.
[17] 杨晓杰,董鹏,马一平,等.聚丙烯酰胺对水泥砂浆塑性收缩开裂性能的影响[J].建筑材料学报,2019,22(1):1-6.