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Method for repairing concrete pavement

A technology for concrete pavement and repair materials, which is applied in the direction of road repair, roads, roads, etc., can solve the problems of long construction period, high cost, and complicated maintenance, and achieve the effects of simple manufacturing method, low repair cost and convenient use

Inactive Publication Date: 2005-11-16
BOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the maintenance of the damaged concrete pavement is complicated, and it needs to be closed and stopped for repair, and a large machine is used to plan the pavement to rebuild; If it is not repaired in time and quickly, it will endanger the safety of driving, aircraft and pedestrians, reduce the life of the vehicle or even damage the vehicle
At present, the commonly used repair materials for concrete pavement repair include quick cement, asphalt concrete or polymer materials, etc. The main problems of using the above repair materials are that the construction period is long, the adhesion to the original pavement concrete is low, and it is not easy to thin the original concrete. layer repair, need to knock down the original concrete layer, and then re-pour concrete

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0010] When used for repairing large-area or deeply damaged concrete pavements,

[0011] (1) Remove powder particles, impurities and oil stains on the surface of the repaired road section.

[0012] (2) Dry the used sand and gravel for later use.

[0013] (3) Brush or spray unsaturated polyester resin after the surface of the lot to be repaired is dry.

[0014] (4) Raw materials used for repairing materials (according to the ratio of parts by weight):

[0015] 1 part unsaturated polyester resin

[0016] Curing agent 0.06 part

[0017] Sand 3 parts

[0018] gravel 6 servings

[0019] Unsaturated polyester resin and curing agent are mixed evenly in advance, and then stirred evenly with sand and gravel to obtain component A.

[0020] (5) Raw materials used for repairing materials (according to the ratio of parts by weight):

[0021] cement 2 parts

[0022] Accelerator 0.02 parts

[0023] The cement and the accelerator are mixed evenly to obtain the B component.

[0024] ...

example 2

[0028] When used for repairing large-area or deeply damaged concrete pavements,

[0029] (1) Remove powder particles, impurities and oil stains on the surface of the repaired road section.

[0030] (2) Dry the used sand and gravel for later use.

[0031] (3) Brush or spray unsaturated polyester resin after the surface of the lot to be repaired is dry.

[0032] (4) Raw materials used for repairing materials (according to the ratio of parts by weight):

[0033] 1 part unsaturated polyester resin

[0034] Curing agent 0.02 part

[0035] Sand 5 parts

[0036] gravel 4 servings

[0037] Unsaturated polyester resin and curing agent are mixed evenly in advance, and then stirred evenly with sand and gravel to obtain component A.

[0038] (5) Raw materials used for repairing materials (according to the ratio of parts by weight):

[0039] 1 part cement

[0040] Accelerator 0.04 parts

[0041] The cement and the accelerator are mixed evenly to obtain the B component.

[0042] (...

example 3

[0046] When used for repairing large-area or deeply damaged concrete pavements,

[0047] (1) Remove powder particles, impurities and oil stains on the surface of the repaired road section.

[0048] (2) Dry the used sand and gravel for later use.

[0049] (3) Brush or spray unsaturated polyester resin after the surface of the lot to be repaired is dry.

[0050] (4) Raw materials used for repairing materials (according to the ratio of parts by weight):

[0051] 1 part unsaturated polyester resin

[0052] Curing agent 0.04 parts

[0053] Sand 4 parts

[0054] gravel 5 servings

[0055] Unsaturated polyester resin and curing agent are mixed evenly in advance, and then stirred evenly with sand and gravel to obtain component A.

[0056] (5) Raw materials used for repairing materials (according to the ratio of parts by weight):

[0057] 1.5 parts of cement

[0058] Accelerator 0.03 parts

[0059] The cement and the accelerator are mixed evenly to obtain the B component.

[...

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Abstract

The present invention relates to a method for repairing concrete pavement. Said method includes removing powdered impurity and grease stain from surface of pavement let to be repaired; drying sand and broken stone; coating or spraying unsaturated polyester resin; using (by weight portion ratio) 1 portion of unsaturated polyester resin, 0.02-0.06 portion of solidifying agent, 3-5 portions of said and 4-6 portion of broken stone, firstly, uniformly mixing unsaturated polyster resin and solidifying agent, then mixing them with said and broken stone to obtain component A; uniformly mixing 1-2 portions of cement and 0.02-0.04 portion of accelerator to obtain component B; uniformly mixing A and B to obtain repairing material; spreading the repairing material to the lot to be repaired, compacting, striking off and spreading small quantity of dried cement powder on said lot so as to implement said repairing operation.

Description

technical field [0001] The invention relates to a method for repairing concrete pavement. Background technique [0002] With the rapid development of my country's economy, the number of airport runways has increased rapidly, the construction of a large number of high-grade expressways, the implementation of concrete projects such as city squares and municipal highways, have improved the quality of human life and promoted the healthy development of the national economy. Scientific experiments have proved that concrete pavements are not only of better quality than pavements of other materials, but also have a longer service life. However, the maintenance of the damaged concrete pavement is complicated, and it needs to be closed and stopped for repair, and a large machine is used to plan the pavement to rebuild; If it is not repaired in time and quickly, it will endanger the safety of driving, aircraft and pedestrians, reduce the life of the vehicle or even damage the vehicle....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C23/06
Inventor 孙啸虎任丽丽
Owner BOHAI UNIV
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