负温下磷酸镁水泥混凝土的力学性能与抗冻性能
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摘要
研究了磷酸镁水泥(MPC)混凝土在20℃、-10℃、-15℃、-20℃养护环境下的力学性能和抗冻性能,为MPC混凝土应用于寒区旱区的抢修工程提供科学依据。MPC混凝土力学性能按照国标GB/T 50081-2002进行试验,抗冻性能按照GB/T 50082-2009进行试验。结果表明:20℃养护条件下,MPC混凝土的28 d抗压强度达到65. 3 MPa,抗折强度达到6. 8 MPa;-10℃养护条件下,28 d抗压强度达到59. 7 MPa,抗折强度达到7. 2 MPa; 300次快速冻融循环后,-10℃养护条件下MPC混凝土质量损失率为3. 5%,相对动弹性模量为83. 5%,抗冻性能优于20℃养护条件下的MPC混凝土。-10℃养护条件下M PC混凝土力学性能和抗冻性能优异,可用于寒区旱区的抢修工程。
In this paper,the mechanical properties and frost resistance of magnesium phosphate cement(MPC)concrete under 20 ℃,-10 ℃,-15 ℃ and-20 ℃ has studied,in order to provide scientific basis for MPC concrete using in emergency repair engineering in cold and arid environment.The experimental method of MPC concrete mechanical properties was based on GB/T 50081-2002,and the experimental method of MPC concrete frost resistance was based on GB/T 50082-2009.The experiment results showed that under curing condition of 20 ℃,28-d compressive strength of MPC concrete is 65.3 MPa and flexural strength is 6.8 MPa.Under curing condition of-10 ℃,28-d compressive strength of MPC concrete is 59.7 MPa and flexural strength is 7.2 MPa.The mass loss ratio of MPC concrete is 3.5% and the relative dynamic elastic modulus of MPC concrete is83.5% under curing condition of-10 ℃ after 300 fast freeze-thawcycles.The MPC concrete frost resistance under curing condition of-10 ℃ is better than that under curing condition of 20 ℃.In conclusion,the mechanical properties and frost resistance of MPC concrete are excellent under curing condition of-10 ℃,which could be used in emergency repair engineering in cold and arid environment.
In this paper,the mechanical properties and frost resistance of magnesium phosphate cement(MPC)concrete under 20 ℃,-10 ℃,-15 ℃ and-20 ℃ has studied,in order to provide scientific basis for MPC concrete using in emergency repair engineering in cold and arid environment.The experimental method of MPC concrete mechanical properties was based on GB/T 50081-2002,and the experimental method of MPC concrete frost resistance was based on GB/T 50082-2009.The experiment results showed that under curing condition of 20 ℃,28-d compressive strength of MPC concrete is 65.3 MPa and flexural strength is 6.8 MPa.Under curing condition of-10 ℃,28-d compressive strength of MPC concrete is 59.7 MPa and flexural strength is 7.2 MPa.The mass loss ratio of MPC concrete is 3.5% and the relative dynamic elastic modulus of MPC concrete is83.5% under curing condition of-10 ℃ after 300 fast freeze-thawcycles.The MPC concrete frost resistance under curing condition of-10 ℃ is better than that under curing condition of 20 ℃.In conclusion,the mechanical properties and frost resistance of MPC concrete are excellent under curing condition of-10 ℃,which could be used in emergency repair engineering in cold and arid environment.
引文
[1]Chau C K,Qiao Fei,Li Zongjin.Microstructure of magnesium potassium phosphate cement[J].Construction and Building Materials,2011,25(6):2911-2917.
[2]Josep T,Irene B,Miquel R,et al.Semi-dynamic leaching tests of nickel containing wastes stabilized/solidified with magnesium potassium phosphate cement[J].Journal of Hazardous Materials,2011,186:1954-1960.
[3]Qiao Fei,Chau C K,Li Zongjin.Property evaluation of magnesium phosphate cement mortar as patch repair material[J].Construction and Building Materials,2010,24(6):695-700.
[4]Mestres G,Ginebra MP.Novel magnesium phosphate cements with high early strength and antibacterial properties[J].Acta Biomaterialia,2011,7(4):1853-1861.
[5]Irene B,Josep T,Miquel R,et al.Leaching behaviour of magnesium phosphate cement containing high quantities of heavy metals[J].Journal of Hazardous Materials,2010,175:789-794.
[6]Hall D A,Stevens R,Ei-Jazairi B.The effect of retarders on the microstructure and mechanical properties of magnesia-phosphate cements mortar[J].Cement and Concrete Research,2001,31(3):389-396.
[7]Yu Yonglin,Wang Jing,Liu Changsheng,et al.Evaluation of inherent toxicology and biocompatibility of magnesium phosphate bone cement[J].Colloids and Surfaces B:Biointerfaces,2010,76:496-504.
[8]Yang Quanbing,Zhu Beirong,Zhang Shuqing,et al.Properties and applications of magnesia-phosphate cement mortar for rapid repair of concrete[J].Cement and Concrete Research,2000,30(3):1807-1813.
[9]Yang Quanbing,Zhang Shuqing,Wu Xueli.Deicer-scaling resistance of phosphate cement-based binder for rapid repair of concrete[J].Cement and Concrete Research,2005,35(4):738-745.
[10]Zhao Jing,Luo Ying.Properties of fast cement pavement patching material[J].Journal of Dalian Jiaotong University,2014,35(Suppl 1):90-93.[赵晶,罗颖.混凝土路面抢修中水泥基修补材料的研制[J].大连交通大学学报,2014,35(增刊1):90-93.]
[11]Li Junfeng,Qiu Yu,Wang Jianlong.Radiation stability of a cementation matrix for spent radioactive resin[J].Journal of Tsinghua University(Science and Technology),2017,57(4):410-414.[李俊峰,邱瑜,王建龙.放射性废树脂特种水泥固化体的辐照稳定性[J].清华大学学报(自然科学版),2017,57(4):410-414.]
[12]Lu Jiawei,Su Wei,Xie Hua.Study on static adsorption kinetics of simulated uranium-bearing wastewater by geological specialty cement[J].Nuclear Techniques,2017,40(9):50-56.[卢嘉炜,苏伟,谢华.地质特种水泥对模拟含铀废液的静态吸附动力学研究[J].核技术,2017,40(9):50-56.]
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[14]Li Jiusu,Cao Yong.Advances of penetrative and wear-resistant rapid-repairing materials used for cement concrete pavement[J].Highway,2012(10):181-185.[李九苏,曹勇.水泥混凝土路面渗透型耐磨快速修补材料研究进展[J].公路,2012(10):181-185.]
[15]Luo Yaofei,Zhang Zhengqi,Zhang Ke.Study of the water stability of warm mix asphalt mixture in cold plateaus[J].Journal of Glaciology and Geocryology,2016,38(6):1592-1597.[罗要飞,张争奇,张苛.高原寒冷地区温拌沥青混合料水稳性能分析[J].冰川冻土,2016,38(6):1592-1597.]
[16]Qin Feng,Tang Yinqing.Experimental study on the performance of rubber powder modified emulsified asphalt mortar[J].Concrete,2017(17):156-160.[覃峰,唐银青.橡胶粉改性水泥乳化沥青砂浆性能试验研究[J].混凝土,2017(17):156-160.]
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[18]Wang Lijun,Jia Jilong,Qiao Huiying,et al.Experimental study on mechanical performances of prestressed hollowslabs strengthened with carbon fiber reinforced plastic and polymer mortar[J].Concrete,2018(3):141-144.[王立军,贾吉龙,乔慧英,等.碳纤维布-聚合物砂浆复合加固预应力空心板受力性能试验研究[J].混凝土,2018(3):141-144.]
[19]Ye Danmei,Sun Zhenping,Zheng Bocun,et al.Current research status and development initiative of polymer-modified cementitious repair material[J].Materials Review,2012,26(4):131-135.[叶丹玫,孙振平,郑柏存,等.聚合物改性水泥基修补材料的研究现状及发展措施[J].材料导报,2012,26(4):131-135.]
[20]Li San,Peng Xiaoqin,Gou Jing,et al.Effect of mineral admixtures incorporation on frost resistance of geopolymer[J].Materials Review,2018,32(5):1711-1715.[李三,彭小芹,苟菁,等.矿物掺合料对地聚合物抗冻性能的影响[J].材料导报,2018,32(5):1711-1715.]
[21]Yuan Kekuo.High-strength and heat insulation foam concrete:developing and applying in cold region tunnel[J].Journal of Glaciology and Geocryology,2016,38(2):438-444.[袁克阔.高强防寒保温泡沫混凝土研制与工程应用[J].冰川冻土,2016,38(2):438-444.]
[22]Xu Jin,Fan Guangli,Zhang Mingming,et al.Effect of hybrid fiber on mechanical properties of NC[J].Bulletin of the Chinese Ceramic Society,2018,37(5):1525-1530.[徐晋,樊广利,张明明,等.混杂纤维对NC的力学性能影响研究[J].硅酸盐通报,2018,37(5):1525-1530.]
[23]Liu Kai,Li Dongxu.Reviewof magnesia-phosphate cement based materials[J].Materials Review,2011,25(7):97-100.[刘凯,李东旭.磷酸镁水泥的研究与应用进展[J].材料导报,2011,25(7):97-100.]
[24]Qiao Fei,Chau C K,Li Zongjin.Calorimetric study of magnesium potassium phosphate cement[J].Materials and Structures,2012,45(3):447-456.
[25]Chang Yuan,Shi Caijun,Yang Nan,et al.Research progresses on durability of magnesium phosphate cement based materials[J].Journal of the Chinese Ceramic Society,2014,42(4):486-493.[常远,史才军,杨楠,等.磷酸镁水泥基材料耐久性研究进展[J].硅酸盐学报,2014,42(4):486-493.]
[26]Ding Zhu,Li Zongjin.Effect of aggregates and water contents on the properties of magnesium phosphate silicate cement[J].Cement and Concrete Composites,2005,27:11-18.
[27]Yang Jianming,Qian Chunxiang,Zhang Qingxing,et al.Effects of particle size of starting materials on hydration and hardening process of magnesia phosphate cement[J].Journal of Southeast University(Natural Science Edition),2010,40(2):373-379.[杨建明,钱春香,张青行,等.原料粒度对磷酸镁水泥水化硬化特性的影响[J].东南大学学报(自然科学版),2010,40(2):373-379.]
[28]Li Jiusu,Wang Yuwen,Zhang Wenbo.Experimental study on durability of magnesium phosphate cement concrete[J].Bulletin of the Chinese Ceramic Society,2014,33(10):2666-2671.[李九苏,王宇文,张文勃.磷酸镁水泥混凝土耐久性试验研究[J].硅酸盐通报,2014,33(10):2666-2671.]
[29]Xia Jinhong,Yuan Dawei,Wang Lijiu.Research on hydration mechanism of magnesia phosphate cement[J].Journal of Wuhan University of Technology,2009,31(9):25-28.[夏锦红,袁大伟,王立久.磷酸镁水泥水化机理研究[J].武汉理工大学学报,2009,31(9):25-28.]
[30]Wang Hongtao.Study on the high performance magnesia-phosphate cement based composites[D].Chongqing:Chongqing U-niversity,2006.[汪宏涛.高性能磷酸镁水泥基材料研究[D].重庆:重庆大学,2006.]
[2]Josep T,Irene B,Miquel R,et al.Semi-dynamic leaching tests of nickel containing wastes stabilized/solidified with magnesium potassium phosphate cement[J].Journal of Hazardous Materials,2011,186:1954-1960.
[3]Qiao Fei,Chau C K,Li Zongjin.Property evaluation of magnesium phosphate cement mortar as patch repair material[J].Construction and Building Materials,2010,24(6):695-700.
[4]Mestres G,Ginebra MP.Novel magnesium phosphate cements with high early strength and antibacterial properties[J].Acta Biomaterialia,2011,7(4):1853-1861.
[5]Irene B,Josep T,Miquel R,et al.Leaching behaviour of magnesium phosphate cement containing high quantities of heavy metals[J].Journal of Hazardous Materials,2010,175:789-794.
[6]Hall D A,Stevens R,Ei-Jazairi B.The effect of retarders on the microstructure and mechanical properties of magnesia-phosphate cements mortar[J].Cement and Concrete Research,2001,31(3):389-396.
[7]Yu Yonglin,Wang Jing,Liu Changsheng,et al.Evaluation of inherent toxicology and biocompatibility of magnesium phosphate bone cement[J].Colloids and Surfaces B:Biointerfaces,2010,76:496-504.
[8]Yang Quanbing,Zhu Beirong,Zhang Shuqing,et al.Properties and applications of magnesia-phosphate cement mortar for rapid repair of concrete[J].Cement and Concrete Research,2000,30(3):1807-1813.
[9]Yang Quanbing,Zhang Shuqing,Wu Xueli.Deicer-scaling resistance of phosphate cement-based binder for rapid repair of concrete[J].Cement and Concrete Research,2005,35(4):738-745.
[10]Zhao Jing,Luo Ying.Properties of fast cement pavement patching material[J].Journal of Dalian Jiaotong University,2014,35(Suppl 1):90-93.[赵晶,罗颖.混凝土路面抢修中水泥基修补材料的研制[J].大连交通大学学报,2014,35(增刊1):90-93.]
[11]Li Junfeng,Qiu Yu,Wang Jianlong.Radiation stability of a cementation matrix for spent radioactive resin[J].Journal of Tsinghua University(Science and Technology),2017,57(4):410-414.[李俊峰,邱瑜,王建龙.放射性废树脂特种水泥固化体的辐照稳定性[J].清华大学学报(自然科学版),2017,57(4):410-414.]
[12]Lu Jiawei,Su Wei,Xie Hua.Study on static adsorption kinetics of simulated uranium-bearing wastewater by geological specialty cement[J].Nuclear Techniques,2017,40(9):50-56.[卢嘉炜,苏伟,谢华.地质特种水泥对模拟含铀废液的静态吸附动力学研究[J].核技术,2017,40(9):50-56.]
[13]Peng Chunyuan.Situation and prospect for newtype material to repair cement concrete road surface[J].Journal of Guangzhou University,2001,15(8):33-35.[彭春元.新型水泥混凝土路面修补材料的研究现状与展望[J].广州大学学报,2001,15(8):33-35.]
[14]Li Jiusu,Cao Yong.Advances of penetrative and wear-resistant rapid-repairing materials used for cement concrete pavement[J].Highway,2012(10):181-185.[李九苏,曹勇.水泥混凝土路面渗透型耐磨快速修补材料研究进展[J].公路,2012(10):181-185.]
[15]Luo Yaofei,Zhang Zhengqi,Zhang Ke.Study of the water stability of warm mix asphalt mixture in cold plateaus[J].Journal of Glaciology and Geocryology,2016,38(6):1592-1597.[罗要飞,张争奇,张苛.高原寒冷地区温拌沥青混合料水稳性能分析[J].冰川冻土,2016,38(6):1592-1597.]
[16]Qin Feng,Tang Yinqing.Experimental study on the performance of rubber powder modified emulsified asphalt mortar[J].Concrete,2017(17):156-160.[覃峰,唐银青.橡胶粉改性水泥乳化沥青砂浆性能试验研究[J].混凝土,2017(17):156-160.]
[17]Wang Jie,Song Jiale,Li Chanchan,et al.Hardening mechanism of cement-emulsified asphalt waterborne epoxy mastic[J].Bulletin of the Chinese Ceramic Society,2017,36(12):4242-4249.[汪洁,宋家乐,李婵婵,等.水泥-乳化沥青-环氧乳液复合胶浆硬化机理研究[J].硅酸盐通报,2017,36(12):4242-4249.]
[18]Wang Lijun,Jia Jilong,Qiao Huiying,et al.Experimental study on mechanical performances of prestressed hollowslabs strengthened with carbon fiber reinforced plastic and polymer mortar[J].Concrete,2018(3):141-144.[王立军,贾吉龙,乔慧英,等.碳纤维布-聚合物砂浆复合加固预应力空心板受力性能试验研究[J].混凝土,2018(3):141-144.]
[19]Ye Danmei,Sun Zhenping,Zheng Bocun,et al.Current research status and development initiative of polymer-modified cementitious repair material[J].Materials Review,2012,26(4):131-135.[叶丹玫,孙振平,郑柏存,等.聚合物改性水泥基修补材料的研究现状及发展措施[J].材料导报,2012,26(4):131-135.]
[20]Li San,Peng Xiaoqin,Gou Jing,et al.Effect of mineral admixtures incorporation on frost resistance of geopolymer[J].Materials Review,2018,32(5):1711-1715.[李三,彭小芹,苟菁,等.矿物掺合料对地聚合物抗冻性能的影响[J].材料导报,2018,32(5):1711-1715.]
[21]Yuan Kekuo.High-strength and heat insulation foam concrete:developing and applying in cold region tunnel[J].Journal of Glaciology and Geocryology,2016,38(2):438-444.[袁克阔.高强防寒保温泡沫混凝土研制与工程应用[J].冰川冻土,2016,38(2):438-444.]
[22]Xu Jin,Fan Guangli,Zhang Mingming,et al.Effect of hybrid fiber on mechanical properties of NC[J].Bulletin of the Chinese Ceramic Society,2018,37(5):1525-1530.[徐晋,樊广利,张明明,等.混杂纤维对NC的力学性能影响研究[J].硅酸盐通报,2018,37(5):1525-1530.]
[23]Liu Kai,Li Dongxu.Reviewof magnesia-phosphate cement based materials[J].Materials Review,2011,25(7):97-100.[刘凯,李东旭.磷酸镁水泥的研究与应用进展[J].材料导报,2011,25(7):97-100.]
[24]Qiao Fei,Chau C K,Li Zongjin.Calorimetric study of magnesium potassium phosphate cement[J].Materials and Structures,2012,45(3):447-456.
[25]Chang Yuan,Shi Caijun,Yang Nan,et al.Research progresses on durability of magnesium phosphate cement based materials[J].Journal of the Chinese Ceramic Society,2014,42(4):486-493.[常远,史才军,杨楠,等.磷酸镁水泥基材料耐久性研究进展[J].硅酸盐学报,2014,42(4):486-493.]
[26]Ding Zhu,Li Zongjin.Effect of aggregates and water contents on the properties of magnesium phosphate silicate cement[J].Cement and Concrete Composites,2005,27:11-18.
[27]Yang Jianming,Qian Chunxiang,Zhang Qingxing,et al.Effects of particle size of starting materials on hydration and hardening process of magnesia phosphate cement[J].Journal of Southeast University(Natural Science Edition),2010,40(2):373-379.[杨建明,钱春香,张青行,等.原料粒度对磷酸镁水泥水化硬化特性的影响[J].东南大学学报(自然科学版),2010,40(2):373-379.]
[28]Li Jiusu,Wang Yuwen,Zhang Wenbo.Experimental study on durability of magnesium phosphate cement concrete[J].Bulletin of the Chinese Ceramic Society,2014,33(10):2666-2671.[李九苏,王宇文,张文勃.磷酸镁水泥混凝土耐久性试验研究[J].硅酸盐通报,2014,33(10):2666-2671.]
[29]Xia Jinhong,Yuan Dawei,Wang Lijiu.Research on hydration mechanism of magnesia phosphate cement[J].Journal of Wuhan University of Technology,2009,31(9):25-28.[夏锦红,袁大伟,王立久.磷酸镁水泥水化机理研究[J].武汉理工大学学报,2009,31(9):25-28.]
[30]Wang Hongtao.Study on the high performance magnesia-phosphate cement based composites[D].Chongqing:Chongqing U-niversity,2006.[汪宏涛.高性能磷酸镁水泥基材料研究[D].重庆:重庆大学,2006.]