Development of sulfuric acid resistant concrete sewer pipes using waste glass powder and meta-kaolin

Development of sulfuric acid resistant concrete sewer pipes using waste glass powder and meta-kaolin

Performance deterioration of concrete has recently been recognized as a significant problem, and is mainly due to corrosionand crack formation, leading to reduced load carrying capacity of reinforced concrete structures. Particularly, the durabilityof concrete structures built in seawater, groundwater, and waste water treatment facilities are significantly reduced whensubjected to chemical erosion by acid and sulfate, and require countermeasures to increase their lifespans. Thus, this study wasconducted to evaluate the performance of sulfate-resistant concrete treated with metakaolin and waste glass powder as abinder to improve sulfate and chemical resistance performance for the development of sulfate-resistant sewer pipes. Concretesewer pipes were successfully developed with excellent sulfate resistance and high strength of 50 MPa or higher.

Performance deterioration of concrete has recently been recognized as a significant problem, and is mainly due to corrosionand crack formation, leading to reduced load carrying capacity of reinforced concrete structures. Particularly, the durabilityof concrete structures built in seawater, groundwater, and waste water treatment facilities are significantly reduced whensubjected to chemical erosion by acid and sulfate, and require countermeasures to increase their lifespans. Thus, this study wasconducted to evaluate the performance of sulfate-resistant concrete treated with metakaolin and waste glass powder as abinder to improve sulfate and chemical resistance performance for the development of sulfate-resistant sewer pipes. Concretesewer pipes were successfully developed with excellent sulfate resistance and high strength of 50 MPa or higher.