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Published in:
2021 | OriginalPaper | Chapter
Research on the Reinforcement of Basalt Soil Using Natural Pozzolan, Cement, and Lime for Building Rural Roads in Dak Nong Province, Vietnam
Authors : Truong Son Bui, Ba Thao Vu, Thi Nu Nguyen, Thanh Duong Nguyen
Published in: Proceedings of the 3rd International Conference on Sustainability in Civil Engineering
Publisher: Springer Singapore
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Abstract
The paper presents the utilization of local natural pozzolan in combination with cement and lime to reinforce local basalt soil for building rural road structure in Dak Nong province. The research results showed that it is necessary to use lime in combination with cement and pozzolan for soil reinforcement. With the cement content ranging from 0 to 12% and 4% lime, the compressive strength of the reinforced soil reached the maximum value when the pozzolan content was 10%. The test results of a mixture of 10% pozzolan, 4% cement, and 4% lime indicated that the mechanical parameters (compressive strength, tensile strength, and elastic modulus) increase rapidly in the first 28 days and tends to grow slowly after 28 days. Additionally, the research results also found that the strength properties of reinforced soil after submerging in water insignificantly decreased.