Granulated modified asphalt and preparation method thereof

A modified asphalt and granulation technology, which is applied to building components, building insulation materials, buildings, etc., can solve problems such as bag removal, difficulty in melting, impact on asphalt quality, and difficulty in melting and using, so as to improve the modified asphalt concrete pavement quality, reduce transportation cost and transportation radius, and improve the effect of gradation embedding effect

Inactive Publication Date: 2018-11-13
周祥 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The patented product is in the form of overall cooling bagged asphalt, which is slow in bagging and cooling, prone to scald accidents during the production process, and the final product sticks to the inner bag of the package
In the process of use, it can only be melted together with the packaging bag, which has an impact on the quality of asphalt, and after the bagged asphalt is cooled, it will form an overall large block structure, which is difficult to melt and use.
During the use of solid bagged asphalt, the user has difficulties in removing the bag and melting it, and the production efficiency is low
In addition, the bagged asphalt, like the barreled asphalt, requires manual unloading, storage, bag removal, and secondary heating and pumping to the mixing building before it can be used, which is more inconvenient than traditional thermal insulation and hot asphalt pumping into storage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Granulated modified asphalt, made of the following components by weight ratio, rubber asphalt: activated waste tire rubber powder: curing agent: deodorant = 60:24:16:0.1, first rubber asphalt and activated waste tire rubber powder Heat and stir to raise the temperature to 180°C, stir and mix evenly, then mix with curing agent and deodorant in a granulator, cool and granulate to form granulated modified asphalt.

Embodiment 2

[0059] Using the same ratio of materials as in Example 1 to weigh the raw materials, replace the proportion of rubber asphalt in the formula with base asphalt, heat the base asphalt at 160°C, add activated waste tire rubber powder in proportion, and gradually heat up to 270°C, keep stirring for 20 minutes after adding the activated rubber powder, add a deodorant with a total weight of 1‰, mix and cool through the steel belt of the granulator and the curing agent, and granulate to obtain granulated modified asphalt.

Embodiment 3

[0061] Granulated modified asphalt is configured according to the following components by weight: petroleum base asphalt: activated waste tire rubber powder: curing agent: deodorant = 50:32:18:0.1, base asphalt and activated rubber powder in proportion > Under the condition of 160°C, it is stirred and mixed with deodorant which accounts for 1‰ of the total weight in the reactor, and the temperature is raised to 230°C, and then the steel belt of the granulator is mixed with the curing agent and cooled, and granulated to obtain granulated modified asphalt.

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PUM

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Abstract

The invention discloses granulated modified asphalt. The granulated modified asphalt is characterized by comprising 5-50% of a curing agent. The granulated modified asphalt has effects of saving energy and reducing emission, and facilitating storage and transportation, is low in cost, and meets the requirements for mass production for road laying and construction.

Description

technical field [0001] The invention relates to a granulated modified asphalt and a preparation method thereof, in particular to granulation of liquid and solid modified asphalt and the preparation method thereof, which can effectively realize the transformation of traditional liquid and solid modified asphalt into granulation. Background technique [0002] Asphalt is a kind of brown-black organic gelatinous substance, including natural asphalt, petroleum asphalt, shale asphalt and coal tar asphalt. Its main components are asphaltene and resin, followed by high boiling point mineral oil and a small amount of oxygen, sulfur and chlorine compounds. Asphalt has waterproof, moisture-proof and anti-corrosion properties, and is mainly used in coatings, plastics, rubber and other industries as well as road paving, among which the largest amount of asphalt is used in road construction. [0003] Modified asphalt is the addition of external additives (modifiers) such as rubber, resin...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L19/00C08L53/02C08L9/06C08J3/12
CPCC08J3/12C08J3/126C08J3/128C08J2395/00C08J2401/24C08J2409/06C08J2419/00C08J2453/02
Inventor 周祥周其强王焱欣
Owner 周祥
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