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Novel material for rapidly repairing pavement of airport

A new type of material and pavement technology, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of high quality repair of airport pavement, unsuitable construction shelf life, short service life, etc., and achieve saving The effect of capital, high cost performance and long service life

Inactive Publication Date: 2015-03-04
中国航空港建设第九工程总队
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Airport pavement repairs have high quality requirements. Traditional repair materials generally have problems such as high heat release, easy cracking, poor adhesion, unsuitable construction, and short shelf life. An ideal quick repair material

Method used

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  • Novel material for rapidly repairing pavement of airport
  • Novel material for rapidly repairing pavement of airport
  • Novel material for rapidly repairing pavement of airport

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1 repairs the corners, potholes, and surface spalling of the concrete slab

[0019] (1) Delineate the scope of repair, chisel out the damaged part with tools, use a small hammer and steel drill to manually trim the repaired area and chisel properly.

[0020] (2) Clean up the slag, soil, dust, etc. at the repaired place, and clean the contact surface with alcohol to make the contact surface clean. After the contact surface is completely dry, carry out the repair work.

[0021] (3) Mix 250g of alkaline activator (composed of sodium silicate and flake alkali with a mass ratio of 75:25) and 500g of blast furnace slag powder, add 270g of water and mix well, add 1200g of dry sand and mix well, and make repair mortar .

[0022] (4) Use repairing mortar to repair the damaged part of the airport pavement.

[0023] (5) The double-fast repair material for the airport pavement is a self-compacting type, and the setting time is short. Therefore, the mortar should be pre...

Embodiment 2

[0025] Contrast experiment of embodiment 2QRM and airport pavement traditional patching materials

[0026] 1. Comparative test material manufacturers and specific product components, etc.

[0027] 1. German Sapphire EPM-EPOXY MORTAR is a two-component epoxy repair mortar

[0028] 2. Zhengzhou Zhongtai Cement Company Zhengte Brand Shuangkuai Cement

[0029] 3. Epoxy resin repair adopts epoxy resin, dibutyl phthalate, ethylenediamine, etc. purchased from the chemical market

[0030] 4. Adopt the novel material prepared by the embodiment of the present invention 1

[0031] 2. Various material test procedures

[0032] The mortar strength tests of various materials are carried out using the T 0506-2005 cement mortar strength test method (ISO method) in the "Highway Engineering Cement and Cement Concrete Test Regulations (JTG E30-2005)".

[0033] 1. EPM repair material test, using the purchased existing materials, according to the product instructions, mix the materials in propo...

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Abstract

The invention relates to a novel material for rapidly repairing a pavement of an airport. The novel material consists of an alkaline activator and blast furnace slag powder in a mass ratio of 1: (2-3). The novel material has quick-setting and early-strength characteristics, is wide in raw material sources, stable in performance and long in storage period, is used for repairing a large-area thin layer of the pavement of the airport, is good in bonding property, unlikely to crack and good in economy, and is a novel green environment-friendly material.

Description

technical field [0001] The invention relates to a novel material used for rapid repair of airport pavement, which belongs to the technical field of civil engineering. Background technique [0002] At present, there are 432 military and civilian airports in my country, and more than 50% of the airport pavements have different degrees of corner damage, surface peeling, plate fracture, warping deformation, freeze-thaw damage, etc., and high-quality repairs are urgently needed. [0003] Airport pavement repairs have high quality requirements. Traditional repair materials generally have problems such as high heat release, easy cracking, poor adhesion, unsuitable construction, and short shelf life. An ideal quick patch material. It is urgent to develop a new repair material for airport concrete pavement with high strength, good cohesiveness, stable performance, small shrinkage deformation, easy storage and good economy. Contents of the invention [0004] The technical problem ...

Claims

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Application Information

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IPC IPC(8): C04B28/26C04B18/14
CPCY02W30/91
Inventor 李建举唐兵王智勇汪全德田杨辉
Owner 中国航空港建设第九工程总队