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A high-performance asphalt cold patch material based on acid stone and its preparation method

A high-performance, cold patching technology, applied in the field of road engineering, can solve the problems of high production costs, achieve low production costs, reduce production costs, and reduce impacts

Active Publication Date: 2021-11-30
江苏诚诺道路材料有限公司
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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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  • A high-performance asphalt cold patch material based on acid stone and its preparation method
  • A high-performance asphalt cold patch material based on acid stone and its preparation method
  • A high-performance asphalt cold patch material based on acid stone and its preparation method

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 stones, and discloses a preparation method thereof, belonging to the technical field of road engineering. A high-performance asphalt cold patch based on acid stone, characterized in that it comprises the following components in parts by mass: 100 parts of acid stone; 3-5 parts of low-grade road petroleum asphalt; 0.8-2 parts of diluent; 0.2-0.8 parts of plasticizer; 2-4 parts of oily nano-scale alkaline adsorbent; 0.3-1 part of release agent. The production process of the asphalt cold patch 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 in Xinjiang, Tibet and the Gobi Desert where there are a lot of acid stones in my country.

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 Patents(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 江苏诚诺道路材料有限公司
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