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

A technology for cement concrete and repairing materials, applied in road repair, roads, roads, etc., can solve the problems of large shrinkage, low flexural strength, and high cost of cement mortar, and achieve the effects of fast growth, low shrinkage, and fast strength.

Inactive Publication Date: 2009-07-15
CHONGQING JIAOTONG UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 co...

Method used

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

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Experimental program
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Effect test

Embodiment 1

[0019] Embodiment 1: One of the fast repairing materials for cement concrete pavement dislocation——styrene-butadiene emulsion modified rapid-hardening sulphoaluminate cement mortar, whose components include cement, water, fine aggregate and styrene-butadiene latex; between the components The weight ratio of the concrete is: cement ≤ 500kg per cubic meter; the water-cement ratio is 0.3-0.36, and the water content in the water-cement ratio includes the water content in styrene-butadiene latex; the solid content in styrene-butadiene latex is 5-10% of cement ; The weight of each cubic meter of repair material is about 2400kg, and the content of fine aggregate is the total weight of each cubic meter of repair material minus the weight difference of the other three components.

Embodiment 2

[0020] Embodiment 2: The second quick-fixing material for cement concrete pavement dislocation——styrene-butadiene emulsion modified rapid-hardening sulfoaluminate cement concrete, whose components include cement, water, fine aggregate, coarse aggregate and styrene-butadiene latex; The weight ratio between the components is: per cubic meter of concrete cement ≤ 500kg; the water-cement ratio is 0.3-0.36, the water content in the water-cement ratio includes the water content in styrene-butadiene latex; the solid content in styrene-butadiene latex is cement 5-10%; the weight of each cubic meter of repair material is about 2400kg, the total content of coarse aggregate plus fine aggregate is the total weight of each cubic meter of repair material minus the weight difference of the other three components, and the sand rate is Fine aggregate / (fine aggregate + coarse aggregate) is 30-36%.

[0021] According to the design theory of concrete mix ratio, crushed stone (coarse aggregate) re...

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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...

Claims

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Application Information

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IPC IPC(8): C04B28/00E01C23/09C04B24/26
CPCC04B28/06C04B2111/0075C04B41/52
Inventor 何兆益危接来李力王强黄维蓉吴宏宇
Owner CHONGQING JIAOTONG UNIVERSITY
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