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Laminated nanometer clay/waste rubber power composite modified asphalt material and preparation method thereof

A composite modified asphalt, layered nanotechnology, applied in building thermal insulation materials, building components, construction and other directions, can solve the problems of difficult to obtain raw material stabilizers, long time, etc., to achieve wide and sufficient sources, excellent performance, good physical properties Effect

Inactive Publication Date: 2014-12-17
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN103589176A discloses a method for preparing composite modified asphalt material by selecting a stabilizer (mixture) and waste rubber powder as an asphalt co-modifier. The prepared composite modified asphalt has better storage stability, However, this preparation process takes a long time and the raw material stabilizer is not easy to obtain

Method used

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  • Laminated nanometer clay/waste rubber power composite modified asphalt material and preparation method thereof
  • Laminated nanometer clay/waste rubber power composite modified asphalt material and preparation method thereof
  • Laminated nanometer clay/waste rubber power composite modified asphalt material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0036] Will contain 600g of petroleum base asphalt (Maoming Petrochemical AH 90 # ) in a stainless steel tank heated at 180°C in a constant temperature oil bath to fully melt the base asphalt. After the base asphalt is completely melted, slowly add 10% (relative to the mass of the base asphalt, the same below) of waste rubber powder (80 mesh, water content less than 3%) and 4% furfural extraction oil (Qingzhou Luguang Lubricating Oil Co., Ltd. , mass content of aromatics 93%, relative density 1.01), shear mixing at a speed of 5000r / min for 60min. Then, slowly mix in 3% organically modified montmorillonite (Zhejiang Fenghong Clay Chemical Co., Ltd., DK3 type), and continue shearing and mixing for 120min at a rate of 5000r / min to obtain organic montmorillonite / waste rubber Powder composite modified asphalt material.

Embodiment 2

[0038] Will be filled with 610g of petroleum base asphalt (Maoming Petrochemical AH 90 #) in a stainless steel tank heated at 170°C in a constant temperature oil bath to fully melt the base asphalt. After the base asphalt is completely melted, slowly add 15% (relative to the mass of the base asphalt, the same below) of waste rubber powder (80 mesh, water content less than 4%) and 2% furfural extraction oil (Qingzhou Luguang Lubricating Oil Co., Ltd. , mass content of aromatics 93%, relative density 1.01), shear mixing at a rate of 3000r / min for 60min. Then, slowly add 7% hydrotalcite (LDHs, provided by Jiangyin Ruifa Chemical Co., Ltd., in the form of white powder, LDHs content ≥ 99.5%, density 1.7kg / m 3 ), continue shearing and mixing at a rate of 5500r / min for 180min, and finally obtain LDHs / waste rubber powder composite modified asphalt material. The morphology of matrix asphalt, prepared waste rubber powder modified asphalt and LDHs / waste rubber powder was observed by at...

Embodiment 3

[0040] Will contain 590g of petroleum base asphalt (Korean SK 90 # ) in a stainless steel tank heated at 170°C in a constant temperature oil bath to fully melt the base asphalt. After the base asphalt is completely melted, slowly add 15% (relative to the mass of the base asphalt, the same below) of waste rubber powder (80 mesh, water content less than 3%) and 4% furfural extraction oil (Qingzhou Luguang Lubricating Oil Co., Ltd. , mass content of aromatics 93%, relative density 1.01), shear mixing at a rate of 3000r / min for 60min. Then, blend in 5% organically modified rectorite (Hubei Mingliu rectorite Technology Co., Ltd., 300 mesh), continue shearing and mixing for 150min at a speed of 5500r / min, and finally obtain organic rectorite / Waste rubber powder composite modified asphalt material.

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Abstract

The invention relates to a laminated nanometer clay / waste rubber power composite modified asphalt material and a preparation method thereof. The composite modified asphalt material comprises the following components in percentage by mass: 100 parts of matrix asphalt, 1-7 parts of laminated nanometer clay, 5-20 parts of waste rubber power and 1-5 parts of furfural extract oil. The laminated nanometer clay and the waste rubber power are adopted as modifiers for the matrix asphalt, a shear emulsifying machine is adopted as a dispersing device and a melt blending method is adopted in the preparation method. The preparation method comprises the following specific steps: heating until raw materials are molten and carrying out shear mixing. The composite modified asphalt material prepared by the preparation method has the advantages of excellent anti-rutting property, excellent UV aging property and storage stability. The preparation method has the characteristics of cheap raw materials, simple process and the like and provides an economical and environment-friendly solution for subsequent processing of waste tires. The composite modified asphalt material can be used in the fields of pavement of high-grade road surface, such as bridge and airport, construction and the like.

Description

technical field [0001] The invention relates to a composite modified asphalt material and a preparation method thereof, in particular to a layered nano-clay / waste rubber powder composite modified asphalt material and a preparation method thereof. Background technique [0002] Due to its superior viscoelasticity and good mineral adhesion, asphalt is widely used in road and airport paving, construction and other fields. However, during the service process, ordinary asphalt pavement tends to flow at high temperature, brittle at low temperature, and is prone to fatigue and aging. It is difficult to meet the needs of modern high-grade, heavy-duty pavement. Anti-fatigue performance is one of the important strategic development directions of my country's current transportation industry. [0003] At the same time, with the improvement of people's living standards and the rapid development of the logistics industry, the number of cars in my country is also growing rapidly year by yea...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L21/00C08K13/06C08K9/04C08K5/01C08K3/34C08K3/26
Inventor 肖新颜刘武
Owner SOUTH CHINA UNIV OF TECH
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