喷射聚合物保温砂浆施工技术
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摘要
在室内试验和工程实践的基础上,得出采用喷射聚合物保温砂浆施工技术是一种行之有效的墙体内保温施工方法,尤其在历史保护建筑的改造中优势更加明显,它可以把墙体加固和墙体内保温结合起来,同时又考虑了保护优秀历史建筑的原貌风格。该施工法用黏结强度较高的聚合物砂浆作为界面层,同时在墙体与界面层之间紧贴墙面加钢丝网,有效地加固墙体;其喷射施工方式使得墙体内保温层连续均匀,有效防止了热桥的影响。简要介绍了聚合物保温砂浆的性能,着重阐述喷射聚合物保温砂浆的施工工艺以及其加固保温机理。
Based on indoor experiments and engineering practice,the authors find out that construction technology of spraying insulation polymer-modified mortar is effective for interior insulation construction of exterior wall,particularly in renovation and rehabilitation projects of excellent historic buildings. This technology can combine interior insulation with strengthening of wall,simultaneously,it can protect the original style of historic buildings. This technology is using polymer-modified mortar with outstanding bond strength as interface layer and in which laying steel mesh cling to wall surface to reinforce the wall effectively. The spraying construction method makes insulation layer continuous and well-distributed which prevents the effects of the thermal bridge significantly. Some performances of insulation polymer- modified mortar and its mechanism for reinforcement and insulation are presented in this article.
Based on indoor experiments and engineering practice,the authors find out that construction technology of spraying insulation polymer-modified mortar is effective for interior insulation construction of exterior wall,particularly in renovation and rehabilitation projects of excellent historic buildings. This technology can combine interior insulation with strengthening of wall,simultaneously,it can protect the original style of historic buildings. This technology is using polymer-modified mortar with outstanding bond strength as interface layer and in which laying steel mesh cling to wall surface to reinforce the wall effectively. The spraying construction method makes insulation layer continuous and well-distributed which prevents the effects of the thermal bridge significantly. Some performances of insulation polymer- modified mortar and its mechanism for reinforcement and insulation are presented in this article.
引文
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[5]苏三庆,丰定国,王清敏.用钢筋网水泥砂浆抹面加固砖墙的抗震性能试验研究[J].西安建筑科技大学学报(自然科学版),1998,30(3):26-30.Su Sanqing,Feng Dingguo,Wang Qingmin.An investigation on aseismic behavior of masonry wall strengthened with steel-meshed cement mortar[J].Journal of Xi’an University of Architecture&Technology(Natural science edition),1998,30(3):26-30.(in Chinese)
[6]宋俊美,谈慕华,吴科如,等.聚合物裹砂改性水泥砂浆的性能研究[J].建筑材料学报,1999,2(4):308-313.Song Junmei,Tan Muhua,Wu Keru,et al.Study on PCM prepared by polymer pre-wrapping technique[J].Journal of Building Materials,1999,2(4):308-313.(in Chinese)
[7]蒋隆敏,张毛心.国内外关于钢丝网水泥砂浆用于RC结构加固的研究[J].世界地震工程,2004,20(2):139-144.Jiang Longmin,Zhang Maoxin.Research on strengthening methods of RC structure with ferrocement laminates at home and abroad[J].World Earthquake Engineering,2004,20(2):139-144.(in Chinese)
[8]熊光晶,Singh G.保护层的质和量与镀锌焊接钢丝网水泥的耐久性[J].水利学报,1998,(7):41-45.Xiong Guangjing,Singh G.Relationship between quality ad quantity and durability of galvanized welded mesh ferrocement[J].Journal of Hydraulic Engineering,1998,(7):41-45.(in Chinese)
[2]刘卫东,张东芹,李红艳.喷射聚合物砂浆在混凝土构件修补中的应用研究[J].工业建筑,2000,30(12):42-44.Liu Weidong,Zhang Dongqin,Li Hongyan.The practical application of ejecting polymer mortar in the concrete element mending[J].Industrial Construction,2000,30(12):42-44.(in Chinese)
[3]Lim C T E.Flexural strengthening of RC beams using ferrocement laminates[D].Singa pore:National University of Singapore,1995.
[4]杨建平,李爱群,王亚勇,等.高强钢绞线-聚合物砂浆加固低强度砖砌体的试验研究[J].防灾减灾工程学报,2008,28(4):473-477.Yang Jianping,Li Aiqun,Wang Yayong,et al.Experimental study on strengthening brick walls of low strength with high strength steel wire and polymer mortar[J].Journal of Disaster Prevention and Mitigation Engineering,2008,28(4):473-477.(in Chinese)
[5]苏三庆,丰定国,王清敏.用钢筋网水泥砂浆抹面加固砖墙的抗震性能试验研究[J].西安建筑科技大学学报(自然科学版),1998,30(3):26-30.Su Sanqing,Feng Dingguo,Wang Qingmin.An investigation on aseismic behavior of masonry wall strengthened with steel-meshed cement mortar[J].Journal of Xi’an University of Architecture&Technology(Natural science edition),1998,30(3):26-30.(in Chinese)
[6]宋俊美,谈慕华,吴科如,等.聚合物裹砂改性水泥砂浆的性能研究[J].建筑材料学报,1999,2(4):308-313.Song Junmei,Tan Muhua,Wu Keru,et al.Study on PCM prepared by polymer pre-wrapping technique[J].Journal of Building Materials,1999,2(4):308-313.(in Chinese)
[7]蒋隆敏,张毛心.国内外关于钢丝网水泥砂浆用于RC结构加固的研究[J].世界地震工程,2004,20(2):139-144.Jiang Longmin,Zhang Maoxin.Research on strengthening methods of RC structure with ferrocement laminates at home and abroad[J].World Earthquake Engineering,2004,20(2):139-144.(in Chinese)
[8]熊光晶,Singh G.保护层的质和量与镀锌焊接钢丝网水泥的耐久性[J].水利学报,1998,(7):41-45.Xiong Guangjing,Singh G.Relationship between quality ad quantity and durability of galvanized welded mesh ferrocement[J].Journal of Hydraulic Engineering,1998,(7):41-45.(in Chinese)
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