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Inorganic layered compound modified emulsified bitumen and preparation method thereof

A technology for emulsified asphalt and compounds, which is applied in building structures, building components, building insulation materials, etc., can solve the problems of high cost of additives, the need to improve the wear resistance and aging resistance of emulsified asphalt, and poor compatibility.

Active Publication Date: 2015-02-18
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Introduced in CN200510103505.1 is a kind of organic bentonite composition modified emulsified asphalt, which has the advantages of high production efficiency, easy production control, convenient operation, low cost, etc., but the performance of emulsified asphalt in terms of wear resistance and aging resistance still needs to be improved. to improve
CN200610032241.X introduces a compound modified emulsified asphalt with inorganic nanoparticles and polymers. The inorganic nanoparticles are nano-silicon oxide, titanium oxide, zinc oxide, aluminum oxide, etc. Although they have certain modification effects, the used The cost of most of the additives is higher
In CN200710035073.4, a kind of inorganic powder and nano-material composite modified emulsified asphalt crack repair material asphalt is introduced, which has comprehensive properties such as excellent wear resistance, strength, excellent waterproof effect and good penetration, but simple inorganic The mixing of nanoparticles and emulsified asphalt will inevitably lead to problems of poor compatibility and poor dispersion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Step 1: Add lactate intercalated magnesium aluminum hydrotalcite and appropriate amount of deionized water into the reactor, reflux at 100°C, and continue stirring for 2 hours to prepare a transparent exfoliated hydrotalcite colloidal solution with a hydrotalcite content of 0.8%.

[0023] Step 2: Add 10 parts of exfoliated hydrotalcite colloidal solution and 100 parts of ordinary emulsified asphalt (60% solid content) into the colloid mill at the same time, mix quickly and evenly, and obtain hydrotalcite-modified emulsified asphalt.

Embodiment 2

[0025] The method for preparing the exfoliated hydrotalcite colloidal solution is the same as step 1 in Example 1, wherein the solid content of the hydrotalcite is 1.2%.

[0026] Add 15 parts of exfoliated hydrotalcite colloidal solution and 100 parts of ordinary emulsified asphalt (60% solid content) into the colloid mill at the same time, mix quickly and evenly, and obtain hydrotalcite-modified emulsified asphalt.

Embodiment 3

[0028] The method for preparing the exfoliated hydrotalcite colloidal solution is the same as step 1 in Example 1, wherein the content of hydrotalcite is 1.6%.

[0029] Add 20 parts of exfoliated hydrotalcite colloidal solution and 100 parts of styrene-butadiene latex modified emulsified asphalt (60% solid content) into the colloid mill at the same time, mix quickly and uniformly, and obtain hydrotalcite-modified emulsified asphalt.

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PUM

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Abstract

The invention discloses an inorganic layered compound modified emulsified bitumen and a preparation method thereof. The inorganic layered compound modified emulsified bitumen comprises, by mass, 100 parts of base emulsified bitumen and 5 to 50 parts of an exfoliation-state hydrotalcite colloidal solution, wherein the exfoliation-state hydrotalcite colloidal solution is prepared by mixing and stirring lactate intercalated hydrotalcite and a proper amount of water. The preparation method is to simultaneously add exfoliation-state hydrotalcite and base emulsified bitumen into a colloid mill for rapid mixing so as to obtain the inorganic layered compound modified emulsified bitumen. The inorganic layered compound modified emulsified bitumen provided by the invention has the advantages of excellent wear resistance, strength and ageing resistance, a green and environment-friendly additive, low cost and simple preparation and has wide application prospects in constructional engineering like paving and maintenance of a road, waterproofness of a building and seepage-proofness of hydraulic engineering.

Description

technical field [0001] The invention relates to a modified emulsified asphalt and a preparation method thereof, in particular to an inorganic layered compound modified emulsified asphalt composition used in road paving, repair and maintenance, and building waterproofing industries and a preparation method thereof. Background technique [0002] Highway traffic is the main component of traffic. High-grade highways, especially expressways, are the main arterial roads in various countries. They have a large traffic volume, many heavy vehicles, and the time interval of vehicle action is short. Due to the high speed of driving, the impact of vehicle on the road The force is large, and the braking distance of the vehicle is long under occasional conditions. Under the action of driving load, rutting and potholes appear prematurely on the road surface, and under the action of light, heat and water, the adhesion of the interface between asphalt and mineral materials is reduced, result...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08K3/26
Inventor 李明林宁爱民郭皎河刘树华
Owner CHINA PETROLEUM & CHEM CORP