Abstract
A series of laboratory tests using resonant column and dynamic torsional shear tests were conducted on kaolinite and montmorillonite clays treated with boron waste. The effect of the boron waste on the dynamic characteristics of two clays was studied considering the effects of the plasticity index. Pulverized boron waste was mixed with the clay soils in different proportions. It has been seen that treatment with boron waste improved the dynamic properties of the two clays. However, increasing the amount of boron waste does not affect the dynamic characteristics of the samples in the same proportions. Increasing the amount of boron waste in the mixture increased the initial shear modulus of the montmorillonite clay up to 300% compared to untreated samples, whereas the reaction of the kaolinite clay with boron waste treatment was moderate. Degradation curves of treated and untreated soils in regard to shear strain are presented. In general treatment, success is dependent on the amount of boron waste and the clay type. The continuous increase with the amount of boron waste in the shear modulus and damping ratio is apparent on both clays.
Highlights
A series of laboratory tests using resonant column and dynamic torsional shear tests were conducted on kaolinite and montmorillonite clays treated with boron waste. e effect of the boron waste on the dynamic characteristics of two clays was studied considering the effects of the plasticity index
The cyclic behavior of two clays mixed with a boron derivative waste was studied based on a set of resonant column and cyclic torsional shear tests
Minimum damping ratio, the strain dependency of shear modulus, and the damping of kaolin and montmorillonite clays mixed with the clay waste at different ratios were evaluated
Summary
A series of laboratory tests using resonant column and dynamic torsional shear tests were conducted on kaolinite and montmorillonite clays treated with boron waste. e effect of the boron waste on the dynamic characteristics of two clays was studied considering the effects of the plasticity index. It has been seen that treatment with boron waste improved the dynamic properties of the two clays. Increasing the amount of boron waste does not affect the dynamic characteristics of the samples in the same proportions. Since there are various stabilization techniques, chemical stabilization is the most used method in treatment of clay soils. Chemical stabilizers such as lime, cement, and fly ash are widely used in practice for improving the geotechnical properties of soils. Boron is a chemical element, which is found in nature in the form of borax and kernite While it has been used since old times, it has gained wide popularity and extensive usage by the advancement of technology. Advances in Materials Science and Engineering place with a reserve of 1.8 million tons, followed by the United States and Argentina [7, 8]
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