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水泥混凝土路面具有强度高、稳定性好、耐久性好、养护费用少、有利于夜间行车、有利于带动当地建材业发展等优点。但有些路面上出现了不同程度的断板现象,混凝土路面的造价高,工艺复杂,发生断板后采取的补救措施较为繁杂,要耗费大量的人力,物力和财力。在目前公路建设中广泛的使用。所谓“水泥混凝土断板”是指水泥混凝土路面在施工养生期或正常使用过程中在无切缝处产生裂缝,经发展使整块混凝土板块断裂形成两块或两块以上不规则的现象。断板是水泥混凝土路面的主要病害之一,特别是施工期间出现的断板,将直接影响到水泥混凝土路面的使用年限。本文总结黑龙江省大兴安岭地区,加白公路c1标段水泥混凝土路面夏季施工中的经验,就提前预防水泥混凝土路面出现裂缝和断板的原因及防止措施进行了一些简单的分析。
Cement concrete pavement with high strength, good stability, durability, conservation costs less conducive to driving at night is conducive to promote the development of local building materials industry advantages. But some pavement appeared different degrees of broken plate phenomenon, the cost of concrete pavement is high, the process is complex, and the remedial measures taken after the broken plate is more complicated, it takes a lot of manpower, material and financial resources. In the current highway construction is widely used. The so-called “cement concrete broken plate ” refers to the cement concrete pavement cracks in the no-seams during the maintenance period or normal use process, the development of the entire block of concrete formed two or more irregular fracture . Breaking board is one of the main diseases of cement concrete pavement, especially during the construction of the broken board, will have a direct impact on the service life of cement concrete pavement. This paper summarizes the experience of cement concrete pavement in c1 section of Daxinganling area of Heilongjiang Province during summer construction and makes some simple analyzes on the reasons of preventing cracks and breaking plates in cement concrete pavement in advance and the preventive measures.