固化剂掺量对生土墙体材料性能的影响
|
摘要
目的研究粉状固化剂不同掺量对生土墙体材料力学性能及耐久性的影响,确定最佳掺量,分析固化剂的固化效果.方法通过对西安土样中掺入0,5%,10%,15%,20%的自配固化剂测定试件不同龄期的抗压强度、抗折强度、水稳定性、冻融性能和收缩性能,并采用SEM电镜对固化土微观结构进行分析.结果掺入固化剂的生土墙体材料的性能明显优于未掺试件,并且随着固化剂掺量的增加,生土墙体材料力学性能、水稳定性能、抗冻性能均明显提高,收缩性能变化不是很明显.结论固化剂对西安地区生土材料性能改善效果明显,固化剂掺量为15%时,试件各项性能满足作为墙体材料的国家标准值.
In this paper,the effects of different dosage of powdered solidified agent on the mechanical prop-erties and durability of raw soil materials were studied and the perfect mixing content was ascertained and so-lidification effect of powdered solidified agent was analyzed.0,5%,10%,15% and 20% of self-prepared solidified agent were added into Xi′an soil sample to determine compressive strength,flexural strength,water stability,performance of freeze-thaw and shrinkage property of different ages.SEM was used to analyze mi-crostructure of solidified soil.The performance of raw soil materials with solidified agent was superior to the samples without solidified agent.The mechanical properties,water stability,freezing and thawing were im-proved with the increase of the dosage of solidified agent.However,shrinkage property was not remarkable to supplementation and omission of solidified agent.The effect of solidified agent on the raw soil materials for wall was obvious and every performance of sample could comply with national standards basically when solidified agent was 15%.
In this paper,the effects of different dosage of powdered solidified agent on the mechanical prop-erties and durability of raw soil materials were studied and the perfect mixing content was ascertained and so-lidification effect of powdered solidified agent was analyzed.0,5%,10%,15% and 20% of self-prepared solidified agent were added into Xi′an soil sample to determine compressive strength,flexural strength,water stability,performance of freeze-thaw and shrinkage property of different ages.SEM was used to analyze mi-crostructure of solidified soil.The performance of raw soil materials with solidified agent was superior to the samples without solidified agent.The mechanical properties,water stability,freezing and thawing were im-proved with the increase of the dosage of solidified agent.However,shrinkage property was not remarkable to supplementation and omission of solidified agent.The effect of solidified agent on the raw soil materials for wall was obvious and every performance of sample could comply with national standards basically when solidified agent was 15%.
引文
[1]杨静.建筑材料与人居环境[M].北京:清华大学出版社,2001.(Yang Jing.Living environment and building materi-als[M].Beijing:Tsinghua University press,2001.)
[2]Hall M,Djerbib Y.Rammed earth sample produc-tion:context,recommendations and consistency[J].construction and building materials,2007(18):281-286.
[3]王赟,张波.生土建筑在灾后重建中的应用研究[J].世界地震工程,2009,25(3):159-161.(Wang Yun,Zhang Bo.Research on application ofraw soil buildings in reconstructions after earthquakedisasters[J].World Earthquake Engineering.2009,25(3):159-161.)
[4]Mohamed A M O.The role of clay minerals in marlysoils on its stability[J].Engineering Geology,1999,57(34):193-203.
[5]王军,吕东军.走向生土建筑的未来[J].西安建筑科技大学学报,2001,33(2):147-149.(Wang Jun,LüDongjun.To the future of the imma-ture soil buildings[J].Journal of University of Ar-chitecture&Technology,2001,33(2):147-149.)
[6]Mitchell J K,Katti R K.Soil improvement-generalreport[J].Washington D C:Tenth ICSMFE,1981,4:567-575.
[7]Ngowi A B.Improving the traditional earth construc-tion[J].Construction and Building Materials,1997,11(1):1-7.
[8]Kevan H.Earthwall construction compressivestrength of cement stabilized pressed earth blocks[J].Building Research and Information,1991,19(2):101-105.
[9]Huiting S,Forssberg E.An overview of recovery ofmetals from slags[J].Waste Management,2003,23(10):933-949.
[10]杨雪强,朱志政,韩高升.对土样强度破坏标准的探讨[J].湖北工业大学学报,2006,21(5):1-5.(Yang Xueqiang,Zhu Zhizheng,Han Gaosheng.Re-search on standards of strength failure value of soilsample[J].Journal of Hubei University of Technolo-gy,2006,21(5):1-5.)
[11]荀勇.含工业废料的水泥系固化剂加固软土试验研究[J].岩土工程学报,2000,22(2):210-213.(Xun Yong.Test on strengthening soft soil with ce-mentatory solidifying agent containing industrialwaste[J].Chinese Journal of Geotechnical Engineer-ing,2000,22(2):210-213.)
[12]姜仁安,郭梅.水泥类复合固化剂的固化机理分析[J].辽宁省交通高等专科学校学报,2007,9(4):17-18.(Jiang Renan,Guo Mei.Analysis of the concretionmechanism of solidified agent on cement compositeconcretion earth[J].Journal of Liaoning ProvincialCollege of Communications,2007,9(4):17-18.)
[2]Hall M,Djerbib Y.Rammed earth sample produc-tion:context,recommendations and consistency[J].construction and building materials,2007(18):281-286.
[3]王赟,张波.生土建筑在灾后重建中的应用研究[J].世界地震工程,2009,25(3):159-161.(Wang Yun,Zhang Bo.Research on application ofraw soil buildings in reconstructions after earthquakedisasters[J].World Earthquake Engineering.2009,25(3):159-161.)
[4]Mohamed A M O.The role of clay minerals in marlysoils on its stability[J].Engineering Geology,1999,57(34):193-203.
[5]王军,吕东军.走向生土建筑的未来[J].西安建筑科技大学学报,2001,33(2):147-149.(Wang Jun,LüDongjun.To the future of the imma-ture soil buildings[J].Journal of University of Ar-chitecture&Technology,2001,33(2):147-149.)
[6]Mitchell J K,Katti R K.Soil improvement-generalreport[J].Washington D C:Tenth ICSMFE,1981,4:567-575.
[7]Ngowi A B.Improving the traditional earth construc-tion[J].Construction and Building Materials,1997,11(1):1-7.
[8]Kevan H.Earthwall construction compressivestrength of cement stabilized pressed earth blocks[J].Building Research and Information,1991,19(2):101-105.
[9]Huiting S,Forssberg E.An overview of recovery ofmetals from slags[J].Waste Management,2003,23(10):933-949.
[10]杨雪强,朱志政,韩高升.对土样强度破坏标准的探讨[J].湖北工业大学学报,2006,21(5):1-5.(Yang Xueqiang,Zhu Zhizheng,Han Gaosheng.Re-search on standards of strength failure value of soilsample[J].Journal of Hubei University of Technolo-gy,2006,21(5):1-5.)
[11]荀勇.含工业废料的水泥系固化剂加固软土试验研究[J].岩土工程学报,2000,22(2):210-213.(Xun Yong.Test on strengthening soft soil with ce-mentatory solidifying agent containing industrialwaste[J].Chinese Journal of Geotechnical Engineer-ing,2000,22(2):210-213.)
[12]姜仁安,郭梅.水泥类复合固化剂的固化机理分析[J].辽宁省交通高等专科学校学报,2007,9(4):17-18.(Jiang Renan,Guo Mei.Analysis of the concretionmechanism of solidified agent on cement compositeconcretion earth[J].Journal of Liaoning ProvincialCollege of Communications,2007,9(4):17-18.)
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心