碳化对混凝土性能的影响

Effect of Carbonation on the Performance of Concrete

碳化是导致混凝土结构失效的主要原因之一。本文通过加速碳化试验方法研究了不同龄期的碳化作用对混凝土试件的强度、吸水率以及抗渗性的影响。结果表明,碳化可以提高混凝土的抗压强度,但是同时会减小混凝土的抗折强度。并且,碳化还会减小混凝土的吸水率,降低混凝土的渗透性。

Carbonation is one of the main factors that lead to the destruction of concrete constructions.This paper aims to investigate the influence of carbonation on the performance of concrete,such as strength,water absorption and impermeability.Results indicate that carbonation can improve the compressive strength,but decrease the flexural strength of concrete.Moreover,due to carbonation,water absorption and permeability of concrete were decreased.