A new self-healing anti-crack and anti-seepage waterproof composite material was developed.Its influence on the mechanical properties,impermeability,early crack resistance and self-healing properties of concrete is studied,and applied it in the concrete pool model members.The results show that:Self-healing anti-crack and anti-seepage composites can significantly improve the impermeability of concrete.The cracking reduction coefficient of concrete reach to 86.5%,and the average crack width was re-duced by 40%.The 0.3 mm crack of concrete can realize self-healing after 56 d.In the solid structure,the pool cracks can also realize self-healing in about 50 d.
关键词
混凝土早期抗裂性能/自愈合/抗裂/防渗
Key words
early cracking resistance of concrete/self-healing/crack resistance/antiseepage