水泥混凝土已成为公路工程建设中应用最广泛、用量最大的建筑材料之一。但水泥混凝土也有抗拉强度低、容易开裂、自重大等缺点。特别是混凝土施工受配合比设计、和易性、天气状况、施工振捣、养护等一些因素的影响,极易产生一些缺陷,影响混凝土的内在质量和外在美观。 Cement concrete has become one of the most widely used and most used building materials in highway construction. However, cement concrete also has low tensile strength, easy to crack, self-weight and other shortcomings. Especially the concrete construction by the mix design, workability, weather conditions, construction vibration, conservation and some other factors, easily produce some defects, affecting the inherent quality of concrete and external beauty.