Influence of Water Contents on Shear Strength of Rammed Earth Wall of Earth-Building

Abstract:

As the "Fujian earth-building" have been inscribed by UNESCO in 2008 as World Heritage Site, attentions of protection about the "Fujian earth-building" has getting more and more. This article takes samples of a rammed-earth wall from Yongding earth-buildings and determines the shear strength of the samples with different water content through triaxial compression tests. The influence on shear strength of water content of rammed-earth samples is analyzed. Test results show that the shear strength of rammed-earth has much to do with the water content of the soil, the greater the water content is，the smaller the shear strength is. With water content increasing, cohesion and internal friction angle of rammed-earth were decreases, and its changing trend is of marked characteristic of stage. When water contents of rammed-earth is under some value, its cohesion changes in small ranges; when water contents of rammed-earth is over the value, its cohesion decreases with water content increasing.

• Periodical: Advanced Materials Research (Volume 382)
• Pages: 172-175
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.382.172
• Online since: November 2011
• Authors: Ren Wei Wu, Xing Qian Peng, Li Zhang
• Keywords: Cohesion, Hakka Earth-Building, Shear Strength, Water Content

References

[1] Xingqing Wang, Basic mechanics characteristics of adobe masonry of rural houses in Yunnan province [D]. Kunming University of Science &Technology (2007). (In Chinese).

[2] Baoqing Wang, Experimental Studies on Durability of Rammed Earth Building Material [D]. Xi'an University of Architecture and Technology (2006). (In Chinese).

[3] Jos R. Arango Gonzalez，Uniaxial deformation-stress behavior of the rammed-earth of the Alcazaba Cadima [J]. Materials and Structures, Vol. 32 (1999), p.70.

DOI: 10.1007/bf02480415

[4] C. Jayasinghe，N. Kamaladasa, Compressive strength characteristics of cement stabilized rammed earth walls [J]. Construction and Building Materials. Vol. 21 (2007), p. (1971).

DOI: 10.1016/j.conbuildmat.2006.05.049

[5] Yingren Zhen, Zhujiang Shen, Xiaonan Gong. Plastic mechanics of geotechnical [M]. china building industry press (2002). (In Chinese).

[6] Guodong Zhang, Yong Li, Jianbo Li. Indicators to determine the soil shear strength and its influencing factors [J]. Subgrade Engineering, Vol. 4 (2008), p.14 (In Chinese).

[7] Qingtao Bi, Guoping Jiang, Shuyun Ding. Water content influence on the shearing strength of red clay[J]. Earth and Environment. Vol. 9 (2005), p.144 (In Chinese).

[8] Wantao Ding, Shengyou Lei. Influence of water contents on shear strength of Reinforced swelling soil [J]. Rock and Soil Mechanics. Vol. 28 (2007), p.391 (In Chinese).

[9] Xin Hu, Baoning Hong, Qiang Du, Yunmei Meng. Influence of water contents on shear strength of coal-bearing soil [J]. Rock and Soil Mechanics. Vol. 30 (2009), p.2291 (In Chinese).

[10] Xiaonan Gong, Advanced soil mechanics [M]. Zhejiang University press (1996). (In Chinese).