2019 Graduate Student Showcase
 

Title of Submission

Field Application of Bio-Stimulated Calcite Precipitation to Stabilize Expansive Soils

Degree Program

Civil Engineering, MS

Major Advisor Name

Bhaskar Chittoori

Type of Submission

Scholarly Poster

Judging Session

10:30am - 12pm - Judging Session #2

Abstract

A sustainable and economic method of treating expansive soils could be through Microbial Induced Calcite Precipitation (MICP). Clayey soils are a natural habitat for bacteria and are therefore a promising source for biological calcite precipitation. Evidence of calcite precipitation in natural clays has been seen in laboratory studies. The application of these methods in the field are however yet to be developed. An attempt to implement MICP in the field show promising observations. Further readings are necessary to determine the homogeneity and spatial effects of the treatment in the ground.

Funding Information

NCHRP Grant

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