Comparison of Swelling Pressures Determined by Two Different Methods

Authors : Ömür Çimen, Nilay Keskin

Pages : 545-557

Doi:10.29130/dubited.1541087

View : 19 | Download : 20

Publication Date : 2025-01-30

Article Type : Research Paper

Abstract :Expansive soils are a problem affecting many parts of the world. The fact that the expenses incurred due to the damage caused by swelling soils are quite high shows that this problem cannot be ignored. In this study, swelling pressures of compacted clays are determined using two different test methods, one of which is an oedometer test equipment. Three different clay samples were used in the tests. Free and constant-volume swell tests are conducted on compacted samples prepared at various water contents and dry densities. Free swell pressure and constant-volume swell pressure tests are performed on samples with identical initial conditions using oedometer testing equipment. These tests are repeated more than two times. Regression analysis was conducted on the free and constant-volume swell pressures based on the obtained data. Then, the swelling pressures calculated using the empirical equation are compared with test results and literature data.
Keywords : Kil zemin, Serbest şişme basıncı, Sabit hacimli şişme basıncı