Rapid patching material for cement concrete pavement faulting of slab ends and patching method thereof

Abstract

The invention discloses a rapid repairing material for table dislocation of a cement concrete road surface, which comprises cement, water, fine aggregate and styrene butadiene latex. The weight ratios of the ingredients are as following: the concrete cement in one cubic meter is less than or equal to 500 kg, the ratio of the water and the cement is from 0.3 to 0.36, the water content in the ratio of the water and the cement contains the water content in the styrene butadiene latex, the solid content in the styrene butadiene latex is 5 percent to 10 percent of the cement, the weight of the repairing material of one cubic meter is about 2400 kg, and the content of the fine aggregate is the weight difference obtained by subtracting the weight of the other ingredients from the total weight of the repairing material of one cubic meter. The invention also discloses a method for rapidly repairing the table dislocation of a cement concrete road surface. The invention has the following advantages that the strength can be rapidly increased, the traffic can be open in 12 hours, the contraction rate is low, and the thin layer repair with the height difference about 1 cm can be carried out.

Description

technical field [0001] The invention relates to a cement concrete pavement maintenance technology, in particular to a cement concrete pavement dislocation rapid repair material and a repair method thereof. Background technique [0002] Staggering is the vertical height difference between adjacent panels at joints or cracks, and it is one of the common diseases of cement concrete pavement. The existence of staggered platforms will not only greatly reduce the comfort and safety of driving, but also lead to the cracking and even fragmentation of the entire pavement due to the repeated impact of the wheel load, which will affect the efficiency of road transportation and cause huge economic losses and adverse social impact. At present, the grounding method is used to treat the wrong platform with a height difference of less than 1.2cm; however, the disadvantage of the grinding method is that the repair efficiency is low, and it is easy to cause micro-cracks under the concrete tr...

AI Technical Summary

Problems solved by technology

The disadvantage of repairing with asphalt sand is that the color is not coordinated, which affects the appearance, and is easy to deform and fall off; the advantages of epoxy resin mortar repair are high repair strength and good bonding performance, but the disadvantages are high construction technology requirements and high cost; cement mortar due to shrinkage Large, low flexural strength, prone to drying shrinkage cracks; and the thickness of the repair layer is less than 4cm, easy to crack and fall off under the action of vehicle load; at the same time, the strength of cement mortar requires a long curing period, which will affect the opening of traffic

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