scholarly journals A Study of the Influence of Water Content Profile on the Dynamic Behavior of Rammed Earth Structures

Author(s):  
Juan P. Villacreses ◽  
Bernardo Caicedo ◽  
Felipe Poveda ◽  
Fabricio Yepez ◽  
Laura Ibagón ◽  
...  
2011 ◽  
Vol 382 ◽  
pp. 172-175
Author(s):  
Ren Wei Wu ◽  
Xing Qian Peng ◽  
Li Zhang

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.


2020 ◽  
Vol 195 ◽  
pp. 03008
Author(s):  
Carmen Covadonga Garcia-Fernandez ◽  
Rafaela Cardoso ◽  
Martina Inmaculada Alvarez-Fernandez ◽  
Celestino Gonzalez-Nicieza

Cracking due to desiccation can compromise the behaviour of earth structures built with compacted clayey soils by promoting water access and consequent volume changes on further wetting. Tensile strength therefore is important to be considered when studying the behaviour of such structures, and in particular its dependence on the degree of saturation or water content. The influence of water content in tensile behaviour of compacted marls was investigated by performing diametral compression tests (Brazilian splitting tests), where axial deformations were measured besides strength. The samples were prepared by compaction at optimum point using standard compaction energy (optimum water content 16%) and then dried by vapour equilibrium to reach water contents between 5% and 16%. The correspondence between water content and suction was done by using the drying branch of the water retention curve, measured using WP4 equipment (Water Dewpoint Potentiometer). Good relationships were found between tensile strength and the water content (and suction). In addition, the study was completed with the analysis of other parameters such as the semi-contact angle created in the loaded area and the stiffness of the material, which also showed changes with water content.


2003 ◽  
Vol 2 (3) ◽  
pp. 368
Author(s):  
Hongkyu Yoon ◽  
Albert J. Valocchi ◽  
Charles J. Werth

2013 ◽  
Vol 27 (5-6) ◽  
pp. 648-658 ◽  
Author(s):  
Tomohiro Yokota ◽  
Shinsuke Kato ◽  
Janghoo Seo ◽  
Satoko Chino ◽  
Jonghun Kim

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