Concrete Durability Improvement in a Sulfate Environment Using Bacteria

Nosouhian, Farzaneh; Mostofinejad, Davood; Hasheminejad, Hasti

doi:10.1061/(asce)mt.1943-5533.0001337

Cited by 87 publications

(25 citation statements)

References 22 publications

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“…The growth of calcite might be attributed to MICP. In other studies, [81][82][83][84] SEM results showed that the concrete mixed with bacteria had improved the microstructure which was attributed to calcite precipitation by the bacteria. According to Iheanyichukwu and Vijay reports [37,85], the incur-poration of bacteria into the concrete improved the overall microstructure of the concrete.…”

Section: Microscopic Evaluationmentioning

confidence: 72%

Use of Bacillus Species Bacteria in Protecting the Concrete Structures from Sulphate Attack- A Review

et al. 2019

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Deleterious ions in the environment such as sulfates may degrade the concrete structures. The interaction of cement hydration products with these destructive agents contributes to severe durability threat of the concrete structures. External sulfate attack is well-known for causing permanent changes in concrete. Microbially induced calcium carbonate (MICP) precipitation has been considered as a unique technique in enhancing the durability properties of concrete. This review paper discusses the possibility of bio-deposition from MICP process as a barrier in microbial treated concrete against the penetration of sulfate ions in a sulfate-rich environment. The effect associated with chemical and physical sulfate attack is discussed in line with the mechanical properties of cement such as compressive strength whereas microscopic evaluation is based on scanning electron microscopy studies. The shortcomings associated with sulfate ions in cement-based materials and the positive effects of incorporating bacillus species bacteria in sulfate rich areas is discussed. This review found that, MICP can significantly reduce the ingress of sulfate ions in cement-based materials, which results in improving the mechanical properties of the cement mortar/concrete.

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Section: Microscopic Evaluationmentioning

confidence: 72%

Use of Bacillus Species Bacteria in Protecting the Concrete Structures from Sulphate Attack- A Review

et al. 2019

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“…Chloride is an important cause in creating corrosion to any steel material in a concrete structure. Thereby, it reduces the durability of concretes [11]. The composition of the media in the culture SRB process is prepared, as follows: a) Control = 25 ml (nutrient broth) + 10 ml ( 3% NaCl) = 35ml b) SRB sample = 25 ml (nutrient broth) + 10 ml ( 3% NaCl) + 1 bead of SRB =35ml…”

Section: Experimental Program 21 Isolation Of Sulphate Reduction Bacmentioning

confidence: 99%

Mechanical properties of sulphate reduction bacteria on the durability of concrete in chloride condition

2019

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In construction, concrete durability is an important material globally used in engineering, material of which can be applied in the fields of specialized marine construction. The ingress of chloride into concrete causes deterioration in the concrete due to the reinforcement corrosion. Adding bacteria into concrete can improve material properties and increase durability with mechanism resist chloride ingressed in the concrete . Ingress of Chloride into the concrete of bacteria is particularly suited for applications of chloride ion penetration in concrete. The objective of the research is to determine the effect of adding bacteria into the concrete properties. The bacteria used in this research is locally isolated and enriched to the suite with the concrete environment. The type of the bacteria used is identified as Sulphate Reduction Bacteria (SRB). The SRB added into the concrete mix with concentrations of 3%, 5% and 7%. Whereas, concentration of bacteria water of cement is 0.5. The mechanical properties test conducted with 28th, 56th, 90th, 180th and 360th day of curing period. The test was using cyclic wetting and drying to study the exposure to chloride condition, such as compressive strength, tensile strength and flexural test. Cubes in the size of 150 mm × 150 mm × 150 mm were prepared for compressive strength test and cylinder 150 mm × 300 mm were prepared for the tensile strength test. The flexural strength test was on the prism in the size of 100 mm × 100 mm × 500 mm. The result of compressive strength test shows, that gave significant strength of 66.3 MPa on the 360th day. The tensile strength and flexural strength have a similar trend as compressive strength results, where both results were optimum . The tensile strength test shows that 4.52 MPa tends to control 3.96 MPa. The result of flexural strength test was 8.23 MPa for compared to control of 5.99 MPa. The overall results of the bacteria indicate promising outcome and further study on chloride condition capability is encouraging.

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“…The term "microbe" refers to many different types of organisms, but research work on self-healing concrete has been so far restricted to bacteria (Achal et al 2011;Krishnapriya and Babu 2015;Jin et al 2018;Ruan et al 2019). Bacteria-mediated self-healing concrete based on biologically induced mineralization processes has been extensively studied during the past decade (Dick et al 2006;2010;Jonkers et al 2010;Nosouhian et al 2016;Seifan et al 2018). Many studies have demonstrated that bacteria are capable of precipitating calcium carbonate which possesses high compatibility with concrete compositions, and this precipitation step is conducted via various biologically induced mineralization processes (Stanaszek-Tomal and Kozak 2017;Wang et al 2012;Ersan et al 2015;Khaliq and Ehsan 2016;Seifan et al 2016;Zhang et al 2017;Gautam 2018).…”

Section: Introductionmentioning

confidence: 99%

Review: Microbial induced mineralization of calcium carbonate for self-healing concrete

Elkhateeb

Elnahas

Daba

2021

Asian J Nat Prod Biochem

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Abstract. Elkhateeb WA, Elnahas MO, Daba GM. 2021. Review: Microbial induced mineralization of calcium carbonate for self-Healing concrete. Asian J Nat Prod Biochem 19: 1-9. Low-cost solutions achieving concrete self-healing are attracting researchers attention. Generally, concrete self-healing mechanism has been so far accomplished by three approaches: autogenous healing, encapsulation of polymeric material, and microbial induced mineralization of calcium carbonate. Microbial approach seems like an attractive potent, relatively cheap way to achieve concrete self-healing. Hence, this review elucidates the microbial concrete self-healing mechanisms, and compare the roles of fungal and bacterial mediated self-healing concrete.

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Concrete Durability Improvement in a Sulfate Environment Using Bacteria

Cited by 87 publications

References 22 publications

Use of Bacillus Species Bacteria in Protecting the Concrete Structures from Sulphate Attack- A Review

Use of Bacillus Species Bacteria in Protecting the Concrete Structures from Sulphate Attack- A Review

Mechanical properties of sulphate reduction bacteria on the durability of concrete in chloride condition

Review: Microbial induced mineralization of calcium carbonate for self-healing concrete

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