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Asphalt high-ductility cementing material, high-ductility material and preparation method

A high ductility, bitumen technology, used in building thermal insulation materials, building components, buildings, etc., can solve the problems of long maintenance time, easy recurrence of diseases, and high maintenance costs, so as to improve driving comfort and temperature sensitivity. , the effect of improving tensile properties

Active Publication Date: 2021-05-25
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantages of traditional expansion joint maintenance methods are: high maintenance costs, long maintenance time, poor social impact, and easy reappearance of diseases under the action of traffic loads
And in the process of use, the use of seamless expansion joints is not very good

Method used

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  • Asphalt high-ductility cementing material, high-ductility material and preparation method
  • Asphalt high-ductility cementing material, high-ductility material and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A kind of preparation method of bituminous high ductility material, it comprises the following steps

[0040] (1) Preparation of asphalt-based high-ductility binder:

[0041] a Calculate the total mass of asphalt-like high-ductility materials that need to be prepared (about 450g each time is advisable);

[0042] b According to the total mass of bituminous high-ductility materials calculated in step a and the blending ratio between various materials, calculate the required (matrix) bitumen 90.570%, thermoplastic resin 7.580%, viscous resin 0.362%, EVA0 .723%, zinc stearate 0.036%, antioxidant 0.004%, plasticizer 0.125%, crosslinking agent 0.600%;

[0043] c. First add thermoplastic resin, viscous resin and EVA into the high-speed mixer, and mix evenly to obtain the first material;

[0044]D zinc stearate, antioxidant, plasticizer are added in the first material, mix to obtain the second material;

[0045] e granulating and cutting the second material to obtain the thi...

Embodiment 2

[0062] A preparation method of bituminous high ductility material, it comprises the following steps:

[0063] (1) Preparation of asphalt-based high-ductility binder:

[0064] a Calculate the total mass of asphalt-like high-ductility materials that need to be prepared (about 450g each time is advisable);

[0065] b According to the total mass of bituminous high-ductility materials calculated in step a and the blending ratio between various materials, calculate the required (matrix) bitumen 90.570%, thermoplastic resin 7.580%, viscous resin 0.362%, EVA0 .723%, zinc stearate 0.036%, antioxidant 0.020%, plasticizer 0.109%, crosslinking agent 0.600%;

[0066] c. First add thermoplastic resin, viscous resin and EVA into the high-speed mixer, and mix evenly to obtain the first material;

[0067] D zinc stearate, antioxidant, plasticizer are added in the first material, mix to obtain the second material;

[0068] e granulating and cutting the second material to obtain the third mat...

Embodiment 3

[0081] A preparation method of bituminous high ductility material, it comprises the following steps:

[0082] (1) Preparation of asphalt-based high-ductility binder:

[0083] a Calculate the total mass of asphalt-like high-ductility materials that need to be prepared (about 450g each time is advisable);

[0084] b According to the total mass of bituminous high-ductility materials calculated in step a and the blending ratio between various materials, calculate the required (matrix) bitumen 90.570%, thermoplastic resin 7.580%, viscous resin 0.362%, EVA0 .723%, zinc stearate 0.043%, antioxidant 0.013%, plasticizer 0.109%, crosslinking agent 0.600%;

[0085] c. First add thermoplastic resin, viscous resin and EVA into the high-speed mixer, and mix evenly to obtain the first material;

[0086] D zinc stearate, antioxidant, plasticizer are added in the first material, mix to obtain the second material;

[0087] e granulating and cutting the second material to obtain the third mat...

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Abstract

The invention discloses an asphalt high-ductility cementing material, a high-ductility material and a preparation method. The asphalt high-ductility cementing material is prepared from the following components in percentage by mass: 83.68 percent to 90.57 percent of asphalt, 7.58 percent to 10.65 percent of thermoplastic resin, 0.362 percent to 0.895 percent of viscous resin, 0.723 percent to 1.343 percent of EVA, 0.036 percent to 0.090 percent of zinc stearate, 0.004 percent to 0.022 percent of an antioxidant, 0.109 percent to 0.224 percent of a plasticizer and 0.6 percent to 3.1 percent of a cross-linking agent. The high-temperature stability and the tensile property can be considered at the same time.

Description

technical field [0001] The invention belongs to the field of bridge materials, and in particular relates to asphalt-based high-ductility cementing materials, high-ductility materials and preparation methods. Background technique [0002] No matter for bridges or immersed tube tunnels, expansion joints are an extremely important part. At present, the common expansion joints are mainly divided into two categories: traditional expansion joints and seamless expansion joints. The main disadvantages of traditional expansion joint maintenance methods are: high maintenance costs, long maintenance time, poor social impact, and easy reoccurrence of diseases under the action of traffic loads. Because of this, for small and medium bridge decks with expansion less than 60mm, when selecting expansion joints, it is advisable to use seamless expansion joints with relatively fast construction and relatively high cost performance. Seamless expansion joints can provide a good and complete sur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08L93/04C08L23/08C08L91/00C08K13/02C08K5/098C08K3/06C08K5/40C04B26/26
CPCC08L95/00C04B26/26C08L2205/035C08L53/02C08L93/04C08L23/0853C08L91/00C08K13/02C08K5/098C08K3/06C08K5/40C04B14/28C04B14/14
Inventor 蒋玮李鹏飞沙爱民张双娇肖晶晶刘瑶涵赵福南侯玉凯白灵强张硕刘聪聪
Owner CHANGAN UNIV
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