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

摘要

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