Abstract
Improving the mechanical properties of a clayey soil is one of the best options to avoid future structural failures in buildings and is cheaper than replacing all the material. Therefore, this article proposes the use of recycled glass and fan shells as reinforcement materials. This article presents an experimental study to evaluate the mechanical properties of a pure and mixed soil. The clay soil was mixed with 7% of glass (PV) and with 3%, 6%, 10%, 12% and 15% of Fan Shells (PCA) duly crushed and passed through sieve #100. Tests of sieve granulometry, sedimentation granulometry, Atterberg limits, modified proctor and drained consolidated direct cut were performed. This allowed comparing all the data obtained and defining the optimal percentage of the mixture in which the clay improves its mechanical properties. According to the tests carried out, the proportion that has 7% glass and 6% Fan Shells has better results because there is an improvement in its dry density from 1,784 g / cm3 to 1,847 g / cm3, its moisture content increases from 9.4% to 12.1%. In addition, its friction angle improves from 28.9 ° to 32 ° and cohesion from 0.05 kg / cm2 to 0.1 kg / cm2. These results verify that the properties of the clay soil are improved.
Highlights
Clayey soils turn out to be one of the problems with the highest incidence in construction, because the increases in volume and the mechanical properties of this land where it is built are not announced in a uniform way, on the contrary, they cause growth in different areas and at the moment of contracting they produce settlements, which can severely damage the structures
According to the tests carried out, the proportion that has 7% glass and 6% Fan Shells has better results because there is an improvement in its dry density from 1,784 g / cm3 to 1,847 g / cm3, its moisture content increases from 9.4% to 12.1%
In Peru there are several areas with clay soil problems, and we refer to the province of Talara that presents large tracts of land with the presence of this soil and this adds to the lack of alternatives to control the expansive behaviour and low resistance of the mechanical properties that this soil presents in buildings
Summary
Clayey soils turn out to be one of the problems with the highest incidence in construction, because the increases in volume and the mechanical properties of this land where it is built are not announced in a uniform way, on the contrary, they cause growth in different areas and at the moment of contracting they produce settlements, which can severely damage the structures. In Peru there are several areas with clay soil problems, and we refer to the province of Talara that presents large tracts of land with the presence of this soil and this adds to the lack of alternatives to control the expansive behaviour and low resistance of the mechanical properties that this soil presents in buildings Building on these clayey soils, which by their nature have a low bearing capacity, means that the requirements necessary to carry out civil works projects are not met. The test results indicated that the addition of 12% WSLGP to the clay has a significant effect on the strength and consistency properties of the clay In all these previous investigations positive results were seen such as the improvement of the plasticity index, the capacity to support the load, an increase in maximum dry density and an increase in CBR. In order to solve this problem, in this research, stabilization using two external agents such as mollusk shells (PCA) and crushed glass (PV) is proposed as an alternative for improving the mechanical properties of clay soil
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