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High-performance asphalt cold patch material based on acidic stone and preparation method thereof

A high-performance, cold patching technology, applied in the field of high-performance asphalt cold patching, high-performance asphalt cold patching based on acid stones and its preparation, can solve the problems of high production costs, achieve low production costs, reduce human body and environment The effect of improving physical adhesion

Active Publication Date: 2020-08-18
江苏天诺环境工程技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the technical defects and high production cost of the existing asphalt cold patch, especially the production of asphalt cold patch with acid stone, the present invention proposes a high-performance cold patch based on acid stone. The asphalt cold patch is produced The process is simple, cost-effective, and is specially suitable for acid stones. It provides a new idea for the production of high-performance asphalt cold patch materials in Xinjiang, Tibet and Gobi Desert areas where there are a lot of acid stones in my country.

Method used

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  • High-performance asphalt cold patch material based on acidic stone and preparation method thereof
  • High-performance asphalt cold patch material based on acidic stone and preparation method thereof
  • High-performance asphalt cold patch material based on acidic stone and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The embodiment of indoor test: the acidic stone used in the test is derived from the granite crushed stone produced in a certain place in Xinjiang, wherein the silicon dioxide content in the crushed stone is 76.3%, and its technical index meets the "Technical Specification for Construction of Highway Asphalt Pavement" (JTGF40- 2004) road aggregate requirements. Gravel gradation conforms to the gradation range requirements of cold-mix asphalt mixture in "Technical Specifications for Construction of Highway Asphalt Pavement" (JTG F40-2004), see Table 1:

[0042] Table 1 Test results of synthetic gradation of cold mix asphalt mixture LB-13

[0043]

[0044] The low-grade road asphalt adopts AH-30# heavy-traffic road asphalt produced by PetroChina Fuel Asphalt Co., Ltd., and its technical indicators are shown in Table 2:

[0045] Table 2 Test results of AH-30# low-grade road petroleum asphalt technical indicators

[0046] Penetration 25°C (0.1mm) Softening ...

Embodiment 2

[0064] Example of indoor test: the acidic stone used in the test comes from granite crushed pebbles produced in a certain place in Tibet, wherein the silicon dioxide content in the crushed pebbles is 72.9%, and its technical indicators meet the "Technical Specifications for Construction of Highway Asphalt Pavement" (JTG F40 -2004) road aggregate requirements. The gradation of crushed pebbles conforms to the gradation range requirements of cold-mix asphalt mixture in the "Technical Specifications for Construction of Highway Asphalt Pavement" (JTGF40-2004), see Table 5:

[0065] Table 5 Test results of synthetic gradation of cold mix asphalt mixture LB-13

[0066]

[0067] Low-grade road petroleum asphalt adopts AH-50# heavy traffic road petroleum asphalt produced by PetroChina Fuel Asphalt Co., Ltd., and its technical indicators are shown in Table 6:

[0068] Table 6 Test results of AH-50# low-grade road petroleum asphalt technical indicators

[0069] Penetration...

Embodiment 3

[0087] Example of indoor test: the acidic stone used in the test is derived from granite crushed pebbles produced in a certain place in Tibet, wherein the silicon dioxide content in the crushed pebbles is 72.3%, and its technical indicators meet the "Technical Specifications for Road Asphalt Pavement Construction" (JTG F40 -2004) road aggregate requirements. The gradation of crushed pebbles conforms to the gradation range requirements of cold-mix asphalt mixture in the "Technical Specifications for Construction of Highway Asphalt Pavement" (JTGF40-2004), see Table 9:

[0088] Table 9 Test results of synthetic gradation of cold mix asphalt mixture LB-10

[0089]

[0090] Low-grade road petroleum asphalt is AH-20# heavy traffic road petroleum asphalt produced by PetroChina Fuel Asphalt Co., Ltd., and its technical indicators are shown in Table 10:

[0091] Table 10 Test results of AH-20# low-grade road petroleum asphalt technical indicators

[0092] Penetration 25...

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Abstract

The invention discloses a high-performance asphalt cold patch material based on acidic stone and a preparation method of the high-performance asphalt cold patch material, and belongs to the technicalfield of road engineering. The high-performance asphalt cold patch material based on the acidic stone is characterized by comprising the following components in parts by mass: 100 parts of the acidicstone, 3-5 parts of low-grade road petroleum asphalt, 0.8-2 parts of diluent, 0.2-0.8 part of a plasticizer, 2-4 parts of an oily nanoscale alkaline adsorbent, and 0.3-1 part of a separant. The asphalt cold patch material is simple in production process, high in cost performance and specially suitable for acid stone, and a new thought is provided for production of the high-performance asphalt coldpatch material in Xinjiang regions, Tibet regions and Gobi desert regions where a large amount of acid stone exists in China.

Description

technical field [0001] The invention belongs to the technical field of road engineering, and relates to a high-performance asphalt cold patch, in particular to a high-performance asphalt cold patch based on acid stones and a preparation method thereof. Background technique [0002] Asphalt pavement has the advantages of comfortable driving, low noise, and convenient maintenance. It has been widely used in China, but there are pits, peeling, cracks and other defects in the asphalt pavement. The main treatment methods for pits are hot-mix asphalt repair method and cold-mix asphalt repair method. The hot-mix asphalt repair method is suitable for large-scale repairs; the cold-mix asphalt repair is suitable for small-area multi-point potholes, and the performance of the cold-mix asphalt in the cold-mix asphalt repair method directly determines the repair results. [0003] Asphalt cold patch is a new type of road material mixed with coarse aggregate, fine aggregate, filler and co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26
CPCC04B26/26C04B2111/0075C04B14/04C04B24/00C04B24/045C04B22/064C04B14/048C04B18/08
Inventor 肖护兵郭晨曦卜进陈晓辉叶凯东
Owner 江苏天诺环境工程技术开发有限公司
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