Microbially exacerbate existing precipitation (MICP) is an emerging technique with great potential for enhancing soil quality. The study's overarching objective to quantify MICP's contribution black cotton soil's improved shear strength and reduced hydraulic conductivity. findings of a laboratory study on the influence microorganisms engineering properties treated MICP. bacteria utilized in thi...

in this note we review a simple criterion, due to ekedahl, for superspecial curves defined over finite fields.using this we generalize and give some simple proofs for some well-known superspecial curves.

Steel slag (SS) is one of byproduct steel manufacture industry. The environmental concerns SS may limit their re-use in different applications. goal this study was to investigate the leaching behavior metals from before and after treated by microbially induced carbonate precipitation (MICP). Toxicity characteristic procedure, synthetic procedure water tests were performed evaluate major element...

The goal of this research is to develop innovative damage-responsive bacterial-based self-healing fibers (hereafter called BioFiber) that can be incorporated into concrete enable two functionalities simultaneously: (1) crack bridging functionality control growth and (2) healing when a occurs. BioFiber comprised load-bearing core fiber, sheath bacteria-laden hydrogel, an outer impermeable strain...

Tangential flow-induced interface erosion poses a major threat to wide variety of engineering structures, such as earth-filled embankment dams, and oil- gas-producing wells. This study explores the applicability microbial induced calcium carbonate (CaCO 3 ) precipitation (MICP) by way ureolytic soil bacterium Sporosarcina pasteurii method for enhancing surface resistance fine sand. Specimens we...

Our study offers a quantitative framework for microbial-induced calcium carbonate precipitation (MICP) to uplift the properties of recycled aggregate concrete (RAC). In this regard, marine alkalophilic bacterium Bacillus sp. B6 was employed, and its growth mineralization efficiency under seawater conditions investigated. Optimization MICP achieved with different nutrient sources bacterial intro...

This study investigates the ability of a coupled finite element model to simulate Microbially Induced Calcium Carbonate Precipitation (MICP) and associated healing behaviour in cementitious samples. recent 3D was first developed for simulating autonomic systems structural elements. It employs cohesive zone constitutive damage-healing an embedded interface within continuum Fluid flow is simulate...

Microbial-induced calcium carbonate precipitation (MICP) is a novel approach that already being applied in various areas of construction. The precipitated can be used to reduce porosity and thus increase the durability deteriorated building components. This study investigates whether MICP injections are suitable for rehabilitation. Porous mortar test samples recycled aggregate parts masonry wer...

The particular bacterium under investigation here (S. pasteurii) is unique in its ability, under the right conditions, to induce the hydrolysis of urea (ureolysis) in naturally occurring environments through secretion of an enzyme urease. This process of ureolysis, through a chain of chemical reactions, leads to the formation of calcium carbonate precipitates. This is known as Microbiologically...