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Rapid Repair Polymer Mortar and Its Application

A technology for repairing mortar and polymer, used in road repair, roads, tracks, etc., can solve problems such as poor durability and poor toughness, and achieve the effects of reducing porosity, reducing shrinkage, and increasing deformability

Inactive Publication Date: 2018-10-09
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a kind of polymer mortar for rapid repair of pulverized cement concrete pavement in the alpine region, through scheme optimization, polymer compounding and modification and toughening, and integrate the respective advantages of these materials to overcome Problems such as poor toughness and poor durability of fast-setting polymer-based repair mortars in the prior art

Method used

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  • Rapid Repair Polymer Mortar and Its Application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 1) Preparation of component A: 100 parts of modified epoxy resin, 15 parts of butyl glycidyl ether, 10 parts of dibutyl phthalate, 4 parts of inorganic nano-particle calcium carbonate, 0.1 parts of anti-aging agent p-phenylenediamine Components are added to the reaction kettle one by one and stirred for 10-15 minutes, and finally 400 parts of natural colored sand are added, stirred for 30 minutes, and degassed in a water bath to obtain component A, which is packaged and stored.

[0047] 2) Preparation of component B: add 10 parts of phenalkamine, 30 parts of polyetheramine, and 5 parts of accelerator DMP-30 into the reaction kettle and stir for 5-10 minutes, then defoam in a water bath to obtain component B, pack and store.

[0048] 3) Preparation of polymer mortar: put A and B into the mixing tank, and stir 0.1 part of epoxy resin defoamer for 10 minutes to obtain the polymer mortar, which is prepared as needed. Guaranteed to run out within 30 minutes after configurati...

Embodiment 2-8

[0053] Examples 2-8, the preparation process of each component of the mortar is as in Example 1, and the types and materials of some additives in the polymer mortar are changed.

example 2

[0054] Example 2: Modified epoxy resin, natural colored sand, phenalkamine, polyetheramine, DMP-30, butyl glycidyl ether, xylene, epoxy resin defoamer, p-phenylenediamine. The proportioning ratio is 100:500:15:20:4:10:20:0.3:0.1 in parts by weight, and the test results are shown in Table 1.

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Abstract

The invention discloses quick-repairing polymer mortar and an application. The mortar is proportionally prepared from natural color sand as a main raw material, modified bisphenol A epoxy resin as a cementing material, mixed type modified aliphatic amine as a curing agent, inorganic nanoparticles as toughening filler, as well as appropriate quantities of a reactive diluent, an epoxy resin defoaming agent, an anti-aging agent and the like. The mortar has the characteristics of good waterproofness, high low-temperature curing speed, low flexural compression ratio, good low-temperature flexibility, good shock resistance, high bonding strength, good freeze-thaw resistance, good durability and the like, and meanwhile, the mortar adopts a simple preparation process, is moderate in cost and suitable for quick repairing of freeze thawing and powdering of a concrete layer between ballastless tracks of a high-speed rail in a high and cold area and can be widely applied to damage repair of road manhole cover sinking, expressway tunnel pavements and bridge floors, airport concrete pavements and the like.

Description

technical field [0001] The invention relates to a high-strength and high-freeze-thaw resistance colored polymer mortar and a preparation process thereof. The polymer repair mortar is applied to flouring of concrete roads in high-speed rail systems in high-cold and high-temperature regions and repairing dry cracked surfaces. Background technique [0002] In my country's alpine regions, affected by various natural factors such as large temperature differences, changes in dryness and humidity, freeze-thaw cycles, and wind erosion, concrete engineering is prone to disasters such as pulverization, erosion, and cracks. Once the disease occurs, it is necessary to investigate and analyze in time to find out the cause and repair it with suitable materials and techniques to ensure the safety and durability of the concrete structure. [0003] The Harbin-Dalian Railway Passenger Dedicated Line is my country's first high-speed railway in an alpine region. Since its opening, since the Har...

Claims

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Application Information

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IPC IPC(8): C04B26/10C04B41/52E01C23/09E01B1/00
CPCC04B26/10C04B41/52E01B1/002E01C23/0973C04B14/28C04B24/121C04B24/02C04B24/045C04B14/06C04B2103/50C04B24/00C04B41/48C04B41/4853C04B41/5072C04B41/46
Inventor 梅启林程相见王宏华李欣怡
Owner WUHAN UNIV OF TECH
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