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Micro-surface seal coat mixture and preparation method thereof

A technology of micro-surfacing and mixing materials, which is applied in the field of micro-surfacing sealing layer mixing materials and its preparation, can solve the problems of reflection cracks, poor waterproof effect, poor heat resistance, etc., and achieve good stress buffering performance and excellent water resistance The effect of scouring ability, structural stability and toughness improvement

Active Publication Date: 2019-05-24
JIANGSU ZENGGUANG COMPOSITE MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing modified emulsified asphalt slurry seal layer has the disadvantages of poor heat resistance and poor waterproof effect, and is prone to reflective cracks

Method used

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  • Micro-surface seal coat mixture and preparation method thereof
  • Micro-surface seal coat mixture and preparation method thereof
  • Micro-surface seal coat mixture and preparation method thereof

Examples

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preparation example Construction

[0041] A kind of preparation method of micro-surface place sealing compound, wherein, preparation method comprises the following steps:

[0042] (1) Weigh cationic emulsified pitch, ethylene-1-octene copolymer, silicone resin, di-tert-butyl peroxide, triethylenediamine, sulfolane, vinyl palmitate, methyl trifluoropropyl silicone oil, Send it into a high-speed shear emulsifier, stir for 20-25 minutes at a temperature of 170-175°C, and then continuously shear for 60 minutes under the condition of 3000-3500r / min to obtain modified emulsified asphalt;

[0043] (2) Cool the modified emulsified asphalt to 20-30°C, add limestone, titanium nitride, aggregate, and water into the mixer and stir evenly to obtain the micro-surface sealing layer mixture.

Embodiment 1

[0046] A kind of micro-surfacing sealing compound, comprising the following materials by weight:

[0047]

[0048]

[0049] Aggregate comprises 60wt% coarse aggregate and 40wt% fine aggregate, coarse aggregate is basalt, fine aggregate is expanded perlite, the particle diameter of coarse aggregate is 5mm, and the particle diameter of described fine aggregate is 0.1mm; Filler consisted of 20 wt% limestone and 80 wt% titanium nitride; accelerator 60 wt% triethylenediamine and 40 wt% sulfolane.

[0050] A preparation method of a micro-surface sealing compound, the preparation method comprising the steps of:

[0051] (1) Weigh cationic emulsified pitch, ethylene-1-octene copolymer, silicone resin, di-tert-butyl peroxide, triethylenediamine, sulfolane, vinyl palmitate, methyl trifluoropropyl silicone oil, Send it into a high-speed shear emulsifier, stir for 20 minutes at a temperature of 170°C, and then continuously shear for 60 minutes under the condition of 3000r / min to ob...

Embodiment 2

[0054] A kind of micro-surfacing sealing compound, comprising the following materials by weight:

[0055]

[0056]

[0057] Aggregate comprises 64wt% coarse aggregate and 36wt% fine aggregate, and coarse aggregate is limestone, and fine aggregate is diatomite, and the particle diameter of coarse aggregate is 8mm, and the particle diameter of described fine aggregate is 0.5mm, Filler consisted of 24 wt% limestone and 76 wt% titanium nitride; accelerator 63 wt% triethylenediamine and 37 wt% sulfolane.

[0058] A preparation method of a micro-surface sealing compound, the preparation method comprising the steps of:

[0059] (1) Weigh cationic emulsified pitch, ethylene-1-octene copolymer, silicone resin, di-tert-butyl peroxide, triethylenediamine, sulfolane, vinyl palmitate, methyl trifluoropropyl silicone oil, Send it into a high-speed shear emulsifier, stir for 24 minutes at a temperature of 172°C, and then continuously shear for 60 minutes under the condition of 3200r / m...

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Abstract

The invention discloses a micro-surface seal coat mixture, comprising, by weight, 10-20 parts of cationic emulsified asphalt, 5-7 parts of ethylene-1-octene copolymer, 3-6 parts of organosilicone resin, 8-12 parts of a filler, 80-90 parts of aggregate, 2-4 parts of di-tert-butyl peroxide, 20-30 parts of water, and 0.5-2 parts of an accelerant. The micro-surface seal coat mixture has the advantagesthat chemical composition of the mixture herein is optimized, the interior structure of the emulsified asphalt is modified in microscopic level, excellent scour resistance is imparted, impermeabilityand stress buffering performance are good, and the micro-surface seal coat mixture helps retard the occurrence of reflection rack and allow limited sliding for a cement concrete pavement on a multi-effect binder course.

Description

technical field [0001] The invention relates to a pavement material and a preparation method thereof, in particular to a micro-surface sealing layer mixture and a preparation method thereof. Background technique [0002] The slurry seal layer is a thin layer formed by mixing emulsified asphalt, coarse and fine aggregates, fillers, water and additives according to the designed ratio by mechanical equipment and spreading it on the original road surface. The traditional slurry seal layer is mostly Ordinary emulsified asphalt is mainly used, which has the advantages of smooth surface, comfortable driving, good wear resistance, small vibration, low noise, etc. However, the highest temperature in summer in most parts of my country reaches above 35-40 ℃, and the highest temperature of asphalt pavement reaches 60 Above -65°C, under the action of high temperature, the asphalt pavement deforms rapidly and is seriously damaged, which brings great inconvenience to traffic. Therefore, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/32
CPCC04B26/32C04B26/26C08L95/005C04B2111/0075C04B14/08C04B14/14C04B14/185C04B14/28C04B14/325C04B20/0076C04B24/00C04B24/08C04B24/2611C04B24/42C04B2103/10C04B24/12C08L2555/52C08L2555/86
Inventor 周庆月
Owner JIANGSU ZENGGUANG COMPOSITE MATERIAL TECH
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