再生塑料在混凝土中的应用研究

Application of Recycled Plastics in Concrete

随着经济的快速发展,各国的塑料制品消费量与日俱增,大量的废弃塑料如PET瓶亟待处理。将废弃塑料回收处理并作为一种环保建材掺入砂浆或混凝土中再利用成为解决废弃塑料的方法之一。介绍了混凝土用塑料骨料的类型及回收处理方法及塑料骨料掺入对混凝土力学性能的影响规律。结果表明:混凝土的力学性能,如抗压强度、劈裂抗弯强度等与塑料骨料的替代度密切相关,为废弃塑料在混凝土中的进一步应用提供了一定的参考依据。

With the rapid development of the economy, the consumption of plastic products of various countries is increasing day by day, and a large amount of discarded plastics such as PET bottles is in urgent need of treatment. Recycling waste plastics and using them as an environmentallyfriendly building material into mortar or concrete is one of the methods to solve waste plastics. This paper introduces the types and recycling methods of plastic aggregates for concrete in detail, and introduces the influence of plastic aggregates on the mechanical properties of concrete. The results show that the mechanical properties of concrete, such as compressive strength, splitting and flexural strength are closely related to the substitution of plastic aggregates, which provides a theoretical basis of the further use of waste plastics in concrete.