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Studying The Use Of Microbial Induced Calcite Precipitation As A Shallow Stabilization Alternative To Treat Expansive Soils, Tasria Rahman
Studying The Use Of Microbial Induced Calcite Precipitation As A Shallow Stabilization Alternative To Treat Expansive Soils, Tasria Rahman
Boise State University Theses and Dissertations
Expansive soils usually recognized as swell-shrink soils have been a problem for civil infrastructure for a long time. It has been a very common practice to use chemical stabilizers including cement and lime to stabilize expansive soils, especially for lightly loaded structures. However, due to the the detrimental effects of these stabilizers on the environment and several occurrences of premature failures after stabilizing with chemical additives, engineers are in search of sustainable stabilization alternatives. Microbial Induced Calcite Precipitation (MICP) is a promising process, which can improve the properties of expansive soil through calcite precipitation. Previous research has shown promise for …
Studying The Applicability Of Biostimulated Calcite Precipitation In Stabilizing Expansive Soils, Md Touhidul Islam
Studying The Applicability Of Biostimulated Calcite Precipitation In Stabilizing Expansive Soils, Md Touhidul Islam
Boise State University Theses and Dissertations
Of the four types of soils, clays are often associated with issues related to low bearing capacity, high compressibility, swelling and shrinking nature. For example, expansive soils swell and shrink with moisture ingress and digress and are prevalent in several parts of the world causing billions of dollars in damages annually to various civil infrastructures. Several ground improvement techniques such as chemical stabilization, deep soil mixing, moisture barriers, and others were employed to counteract these soils. However, these methods are impractical in certain situations and unsustainable in others due to their economic and environmental impacts. Microbiological treatment of soils could …