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Modified emulsified asphalt joint filling mortar and preparation method thereof

A technology of emulsified asphalt and modification, which is applied in the field of modified emulsified asphalt joint filling mortar and its preparation. It can solve the problems of loss of joint filling, bonding effect, repair project failure, low melting point of emulsified asphalt, etc., and achieve excellent penetration and adhesion. Good junction performance, extended service life, and good temperature resistance

Inactive Publication Date: 2018-01-09
安徽路达泰克沥青新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing method to solve the aging and mild damage of asphalt pavement is generally to use asphalt to heat up on-site pouring, pouring, and paving. However, since the asphalt thickens and solidifies rapidly after cooling in the air, it cannot penetrate into the cracked cracks. Does not have the effect of seam filling and bonding
However, ordinary emulsified asphalt spraying and flood irrigation are used for repairing, although the construction is convenient and the flood irrigation effect is good, but due to the low melting point of emulsified asphalt, its adhesion rate will drop sharply with the increase of temperature, and the effect of filling joints and bonding will be lost, especially when the temperature is high in summer. Often because the emulsified asphalt on the road surface is constantly being taken away by the wheels after melting, the repair project fails

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The weight composition of the A component is:

[0034] 100 parts of emulsified asphalt

[0035] SBS latex modifier 10 parts

[0036] Cross-linking agent dicumyl peroxide 0.5 part

[0037] 50 parts of water;

[0038] The weight composition of the B component is:

[0039] 100 parts of cement

[0040] Mineral powder 50 parts

[0041] 1 part water reducer

[0042] Expansion agent 12 parts

[0043] 1 part aluminum powder

[0044] Quartz sand 70 parts

[0045] 180 pieces of crushed stone;

[0046] The weight composition of above-mentioned emulsified asphalt is: 85% 90# heavy cross asphalt, 6% emulsifier and surplus water, and the emulsifier is polyvinyl alcohol and nonylphenol polyoxyethylene ether in a weight ratio of 1:1 The preparation of emulsified asphalt is obtained by stirring and holding 125 ℃ heavy asphalt for 1-2 hours, taking emulsifier and 70 ℃ water to prepare soap solution, and mixing the two with a colloid mill and emulsification.

[0047] The weight...

Embodiment 2

[0050] The weight composition of the A component is:

[0051] 100 parts of emulsified asphalt

[0052] SBS latex modifier 12 parts

[0053] Cross-linking agent tert-butyl hydroperoxide 1 part

[0054] 55 parts of water;

[0055] The weight composition of the B component is:

[0056] 100 parts of cement

[0057] Mineral powder 55 parts

[0058] 2 parts water reducer

[0059] Bulking agent 8 parts

[0060] 2 parts aluminum powder

[0061] 75 parts of quartz sand

[0062] 220 pieces of crushed stone;

[0063] The weight composition of above-mentioned emulsified asphalt is: 80% of 90# heavy-cross asphalt, 5% of emulsifier and surplus water, and the emulsifier is polyvinyl alcohol and nonylphenol polyoxyethylene ether in a weight ratio of 1:1 The preparation of emulsified asphalt is obtained by stirring and holding 125 ℃ heavy asphalt for 1-2 hours, taking emulsifier and 70 ℃ water to prepare soap solution, and mixing the two with a colloid mill and emulsification.

[00...

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PUM

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Abstract

The invention discloses modified emulsified asphalt seam filling mortar which is prepared by mixing an A component and a B component, wherein the A component comprises by weight of 100 parts of emulsified asphalt, 10-12 parts of SBS latex modifying agent, 0.5-1 part of cross-linking agent and 50-55 parts of water; the B component comprises by weight of 100 parts of cement, 50 parts of mineral powder, 1 part of water reducing agent, 8-12 parts of expanding agent, 2 parts of aluminum powder, 70 parts of quartz sand and 200 parts of rubble; the modified emulsified asphalt seam filling mortar has a higher softening point and good temperature resistance and prolongs the service life of emulsified asphalt effectively; the road surface friction coefficient and the coating compression resistance and impact resistance can be increased by the aid of the rubble and the quartz sand; the specifically-prepared emulsified asphalt and the SBS latex modifying agent can endow the seam filling mortar with excellent penetration and bonding performance; the modified emulsified asphalt seam filling mortar can meet the high temperature condition and is applied to road repair requiring rapid traffic opening.

Description

technical field [0001] The invention belongs to the technical field of preparation of emulsified asphalt joint filling mortar, and particularly relates to a modified emulsified asphalt joint filling mortar and a preparation method thereof. Background technique [0002] Although asphalt pavement has the advantages of good wear resistance, not easy to dust, anti-skid, and impermeable to water, however, due to the characteristics of asphalt itself, which is easy to oxidize, easy to wear, easy to melt at high temperature and brittle at low temperature, the asphalt pavement will not be used for several years. After surface oxidation, wheel friction loss, rain and snow erosion, high temperature melting, low temperature embrittlement and other factors, the loss of fine aggregate on the pavement, the loss of the surface asphalt coating, the exposure of coarse aggregate, and the polishing of the pavement are common. The friction coefficient is seriously reduced, which affects the dri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B24/36C04B111/70C04B111/72
CPCC04B28/04C04B40/0039C04B2111/0075C04B2111/70C04B2111/72C04B24/36C04B24/2611C04B24/32C04B24/2623C04B24/383C04B24/00C04B22/14C04B18/12C04B22/04C04B14/06C04B14/02C04B2103/302C04B2103/0068
Inventor 田海明王勇进李争朱亚楠任岩岩
Owner 安徽路达泰克沥青新材料有限公司