Neha1, Vishal Rawat2*
1 Department of Civil Engineering, Birla Institute of Technology, Mesra, Ranchi, India
2Department of Civil Engineering Babasaheb Bhimrao Ambedkar University, Lucknow-226025, India
Cite this article: Neha, Rawat, V., 2023. Influence of brick dust on the undrained cyclic shear strength of sand. J. Appl. Sci. Innov. Technol. 2 (2), 73-81.
Highlights
- A sand specimen of 100 mm in height and 50 mm in diameter was created for the test.
- Oven dried sand and brick-dust of required weight was poured into the mould in three layers tamping.
- The load cell was placed over the sample and continuous vacuum was applied to the sample.
- The sample is placed in the load frame and undrained triaxial test
Abstract: Sandy of soils losing its shear strength due to liquefaction is a serious concern in seismic prone areas. Experimental investigations were done on sand-brick dust mixture to study the undrained shear strength and liquefaction characteristics and the results are presented in this paper. On the specimens made from medium fine sand, strain controlled undrained dynamic cyclic shear tests are conducted. The percentage of brick dust added to sand is from 0% to 50 % (increments of 5%) by weight of sand. The effect of number of cycles on strain, deviator stress and pore pressure with the addition of brick dust is analysed. The number of cycles required to cause liquefaction (when the pore pressure ratio reached the value of 1 is computed for each increment of brick dust added to sand. The cyclic resistance of the sand increased up to addition of 25% of brick dust by weight of sand and thereby decreased with the increase in the percentage of brick dust.
Keywords: Undrained cyclic shear strength; brick dust; pore pressure ratio; liquefaction; number of cycles
Scope: Civil Engineering
04 Influence of brick dust on the undrained cyclic shear strength of sand
