浅析水泥混凝土路面病害产生原因与防治（Analysis of the causes and prevention of cement concrete pavement diseases）.docVIP

浅析水泥混凝土路面病害产生原因与防治（Analysis of the causes and prevention of cement concrete pavement diseases） Analysis of the causes of cement concrete pavement disease and prevention and control.Txt when your mother gave birth to you is not to throw up the placenta raised? Dont treat shrimps as seafood. Dont treat shrimps as seafood. Analysis of the causes and prevention of cement concrete pavement diseases Key words: cement concrete pavement disease treatment Abstract: This paper mainly analyzes the causes of the common diseases of cement concrete pavement, and puts forward the treatment measures. The damage of cement concrete pavement can be divided into four types: fracture type, vertical displacement type, joint type and surface layer type. The fracture mainly refers to the longitudinal and transverse, oblique cracks and cross cracks, fracture plate; vertical displacement mainly refers to the subsidence and bulge; joint sealant mainly refers to the crack damage, mud, faulting and arch; surface class mainly refers to the pits, explicit, net cracks and rough skin, aggregate freeze-thaw damage, crack repair. 1 causes of disease formation At present, the disease has the following five reasons; one is the prevention and control of water is not enough, poor soil subgrade and roadbed high underground water level; two is the uneven settlement of roadbed; pavement surface layer is three, insufficient strength; four is overweight load; the five is the design and construction defects. 1.1, the prevention and control of water is not timely, is the main cause of disease The transverse joints of the cement pavement are all made of asphalt filling, and the longitudinal seam is the construction joint without asphalt. There is no drainage in the blind ditch. After years of driving action, the joint between the pavement plates is extruded, and the gap joint of the original road surface fails, and the surface water penetrates through the cracks into the base and can not be discharged from the s