ABSTRACT Microbial Induced Calcite Precipitates (MICP) is a new and sustainable technology used to improve the properties of construction materials. This technique works by introducing bacteria solution (e.g., Sporosarcina pasteurii, B. megaterium, Spoloactobacilus, Clostridium and Desulfotomaculum ) into the soil matrix , and then injection of a chemical solution consisting of urea and one of calcium salts (e.g., calcium chloride and calcium acetate ) into the soil matrix several times. A number
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