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Road repair material and application thereof

A technology of road repair and repair material, which is applied in the field of repair of various airport runways, and can solve problems such as difficulty in simultaneously taking into account strength performance and crack resistance performance, cracking, etc.

Active Publication Date: 2017-03-29
韩先福 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, in the above-mentioned road repair materials, it is basically difficult to balance the strength performance and the crack resistance performance at the same time. Usually, in order to obtain high strength, it is necessary to make the repaired area have high hardness, which leads to cracks. Therefore, how to develop a material that can simultaneously take into account Road patching materials with strength and crack resistance become more desirable

Method used

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  • Road repair material and application thereof
  • Road repair material and application thereof

Examples

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Embodiment 1

[0036] Contains tailings, cement, modified glue and polypropylene fiber, wherein based on the total weight of the road repair material, the content of tailings is 30-60%, the content of cement is 20-40%, and the content of modified glue is 5-30%, the content of polypropylene fiber is 5-20%.

[0037] The road repair material is prepared from tailings, cement, modified glue and polypropylene fiber. Based on the total weight of the road repair material, the content of tailings is 50%, the content of cement is 30%, and the content of modified glue is 10%. %, the content of polypropylene fiber is 10%. The tailings are rare earth tailings (obtained from Tangshan Iron and Steel Concentrator), and the cement is a mixture of Portland cement and sulphoaluminate cement (both obtained from Hebei Tangshan Yandong Cement Company) with a weight ratio of 1:1 , and added calcium chloride accounting for 1.5% of the total weight of cement. The modified glue is commercially available polyuretha...

Embodiment 2

[0039] (1) Pretreatment of the road repair material obtained according to Example 1: the road repair material is mixed with a solvent in a weight ratio of 3:1 to obtain a pre-repair material, and the solvent is water and ethanol in a 4:1 weight ratio mixture;

[0040] (2) Clean up road cracks or potholes: Use mechanical or manual methods to clean up road cracks or potholes until the concrete stabilization layer is exposed; among them, small cracks and narrow potholes need to be cleaned manually, and the loose concrete structure at the edge of the cracks needs to be completely removed. Clean up debris and engineering waste until the concrete stabilization layer is seen, use a high-power blower to thoroughly remove dust and sundries in the repaired area, and paint emulsified asphalt with a solid content of 50% in the repaired area, and wait until it is completely demulsified Carry out the direct pouring of the following pre-repair materials;

[0041] (3) Repair road cracks or p...

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Abstract

The invention discloses a road repair material and an application thereof. The road repair material comprises the following components in terms of the total weight of the road repair material: 30 to 60% of tailings, 20 to 40% of cement, 5 to 30% of modified gum and 5 to 20% of polypropylene fiber. The road repair material provided by the invention has the advantages of high strength and good crack resistance.

Description

technical field [0001] The invention relates to a road repairing material and its application, in particular to a road repairing material with high strength and anti-cracking and its application, which is especially suitable for repairing various airport runways. [0002] technical background [0003] In recent decades, the domestic cement concrete pavement business has developed rapidly. By 2013, the mileage of cement concrete pavement in my country reached 1.2 million kilometers. With the rapid development of my country's economic strength, the traffic volume of roads is also increasing rapidly. The requirements for the quality of the structure are also higher. Cement concrete pavement has the incomparable advantages of asphalt pavement, such as high strength, high rigidity, strong bearing capacity, good stability, and good durability. However, in the face of the increasing road pressure, many roads are damaged due to overwhelm, but there are also disadvantages such as comp...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B28/04C04B28/06C04B18/12
CPCY02W30/91
Inventor 韩先福衣大明贺伟力
Owner 韩先福
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