This research paper investigates the effects of concrete bleeding on the crack resistance of concrete structures. It defines concrete bleeding as the upward movement of water within fresh concrete due to the settling of heavier particles. The paper explores the negative impacts, including reduced bond strength between aggregates and paste, and between steel and paste, leading to increased cracking risk. It examines how bleeding affects volume change, shrinkage, and the durability of concrete. The study reviews various factors affecting bleeding, such as the water-cement ratio and the use of admixtures, and discusses how bleeding can cause surface delamination, mortar flaking, and scaling. The research also highlights the gap in existing literature, which primarily focuses on plastic concrete, and suggests further research on other concrete types. It concludes by emphasizing the importance of understanding and mitigating concrete bleeding to enhance the durability and crack resistance of concrete structures.
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