硫氧镁水泥发泡剂研究
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摘要
以干密度、孔隙率、抗压强度、孔结构以及断面微观形貌为指标,选择K12、AOS、TX-10、AEO-9、CAB和LAO六种发泡剂研究发泡剂对硫氧镁水泥性能的影响。结果表明:使用发泡剂AOS制备的试样干密度为413 kg/m~3,符合FC A04-JG/T266-2011标准要求,孔隙率为75. 17%,孔径分布集中,排列紧密,主要分布在50～250μm且泡孔基本为圆形或近圆形的密闭孔,抗压强度为1. 5 MPa,高于同密度的其他试样,是合适的硫氧镁水泥发泡剂。
Taking dry density,porosity,compressive strength,pore structure and cross-sectional micromorphology as indexes,six foaming agents K12,AOS,TX-10,AEO-9,CAB and LAO were selected to study the effect of foaming agents on the properties of magnesium oxysulfate cement. The results show that the dry density of the sample prepared using blowing agent AOS is 413 kg/m~3,which meet the requirements of FC A04-JG/T266-2011. The porosity is 75. 17%. The pore size distribution is concentrated and closely arranged,mainly distributed in 50-250 μm,the macropores are few,and the cells are basically round or near-circular,the compressive strength is 1. 5 MPa,which is higher than other samples with the same density. It is an appropriate oxysulfite cement foaming agent.
Taking dry density,porosity,compressive strength,pore structure and cross-sectional micromorphology as indexes,six foaming agents K12,AOS,TX-10,AEO-9,CAB and LAO were selected to study the effect of foaming agents on the properties of magnesium oxysulfate cement. The results show that the dry density of the sample prepared using blowing agent AOS is 413 kg/m~3,which meet the requirements of FC A04-JG/T266-2011. The porosity is 75. 17%. The pore size distribution is concentrated and closely arranged,mainly distributed in 50-250 μm,the macropores are few,and the cells are basically round or near-circular,the compressive strength is 1. 5 MPa,which is higher than other samples with the same density. It is an appropriate oxysulfite cement foaming agent.
引文
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[14]JG/T 266-2011,泡沫混凝土[S].
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[16]李小龙,李国忠.水泥基泡沫保温材料的制备与性能研究[J].砖瓦,2013(6):55-57.
[17]李丽英,高延敏,季燕青,等.环氧树脂和铝粉对发泡水泥的性能影响[J].江苏科技大学学报(自然科学版),2015,29(3):234-238.
[18]李启金.低密度泡沫混凝土保温材料的制备与性能研究[D].济南:济南大学,2014.
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[20]吴成友,余红发,文静,等.改性硫氧镁水泥物相组成及性能研究[J].新型建筑材料,2013,40(5):68-72.
[21]刘佳奇,霍冀川,雷永林,等.发泡剂及泡沫混凝土的研究进展[J].化学工业与工程,2010,27(1):73-78.
[22]李良.关于泡沫混凝土发泡剂的研究探讨[J].混凝土世界,2010(5):38-40.
[23]刘阳,唐明,宋学君.混凝土发泡剂研究进展[J].混凝土,2012(9):57-58.
[24]杨晓鹏,郭东红,钟安武.结构及用量对脂肪醇/烷基酚聚氧乙烯醚磺酸盐界面活性的影响[J].石油天然气学报,2010,32(1):132-135.
[2]Xiang L,Liu F,Li J,et al.Hydrothermal formation and characterization of magnesium oxysulfate whiskers[J].Materials Chemistry&Physics,2004,87(2):424-429.
[3]杨少明,佟利辉,杨红健,等.养护方式对氯氧镁水泥力学性能的影响[J].硅酸盐通报,2018,37(3):1059-1065.
[4]陈聪,吴成友,张慧芳,等.基于碱式硫酸镁水泥的新型泡沫混凝土的制备及性能研究[J].硅酸盐通报,2018,37(3):1022-1027.
[5]刘殿忠,潘帅,李滋仡.密度对泡沫混凝土抗压强度的影响[J].建材世界,2016,37(2):25-27.
[6]谷亚新,王延钊,王小萌.同工艺泡沫混凝土的研究进展[J].混凝土,2013(12):148-152.
[7]张翠苗,杨红健,马学景.氯氧镁水泥的研究进展[J].硅酸盐通报,2014,33(1):117-121.
[8]He Z H,Yang H,Song H,et al.Effect of mixing on properties and microstructure of magnesium oxychloride cement[J].Journal of the Chinese Ceramic Society,2016,3(1):38-45.
[9]杨锐,江国健,沈晴昳,等.硫氧镁胶凝材料的制备及其性能研究[J].陶瓷学报,2016,37(5):493-497.
[10]刘涛,郑亚林,杜沛,等.耐水高强硫氧镁质胶凝材料的研制[J].四川建筑科学研究,2013,39(3):214-217.
[11]Guo T,Wang H,Yang H,et al.The mechanical properties of magnesium oxysulfate cement enhanced with 517 phase magnesium oxysulfate whiskers[J].Construction&Building Materials,2017,150:844-850.
[12]Wu C,Yu H,Zhang H,et al.Effects of phosphoric acid and phosphates on magnesium oxysulfate cement[J].Materials&Structures,2015,48(4):907-917.
[13]张雄,黄延浩,张永娟,等.Image-Pro Plus混凝土孔结构图像分析方法[J].建筑材料学报,2015,18(1):177-182.
[14]JG/T 266-2011,泡沫混凝土[S].
[15]许彦明,蒙海宁,左李萍,等.泡沫混凝土发泡剂研究综述[J].粉煤灰,2016,28(3):43-46.
[16]李小龙,李国忠.水泥基泡沫保温材料的制备与性能研究[J].砖瓦,2013(6):55-57.
[17]李丽英,高延敏,季燕青,等.环氧树脂和铝粉对发泡水泥的性能影响[J].江苏科技大学学报(自然科学版),2015,29(3):234-238.
[18]李启金.低密度泡沫混凝土保温材料的制备与性能研究[D].济南:济南大学,2014.
[19]Jiang J,Lu Z,Niu Y,et al.Investigation of the properties of high-porosity cement foams containing epoxy resin[J].Construction&Building Materials,2017,154:115-122.
[20]吴成友,余红发,文静,等.改性硫氧镁水泥物相组成及性能研究[J].新型建筑材料,2013,40(5):68-72.
[21]刘佳奇,霍冀川,雷永林,等.发泡剂及泡沫混凝土的研究进展[J].化学工业与工程,2010,27(1):73-78.
[22]李良.关于泡沫混凝土发泡剂的研究探讨[J].混凝土世界,2010(5):38-40.
[23]刘阳,唐明,宋学君.混凝土发泡剂研究进展[J].混凝土,2012(9):57-58.
[24]杨晓鹏,郭东红,钟安武.结构及用量对脂肪醇/烷基酚聚氧乙烯醚磺酸盐界面活性的影响[J].石油天然气学报,2010,32(1):132-135.