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Cold-mix colored porous asphalt cement preparation method

A technology of permeable asphalt and cementitious materials, applied in building insulation materials, building components, buildings, etc., can solve the problems of rutting resistance, poor durability, poor adhesion, etc., and achieve excellent rutting resistance and excellent durability Effect

Inactive Publication Date: 2016-06-22
HANZHOU LANNAS ROAD ENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a method for preparing a binder for cold-mix colored permeable asphalt with excellent durability and rutting resistance, which solves the problems of poor cohesion, rutting resistance and durability of existing permeable asphalt concrete question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The formulation of the cold-mix color permeable asphalt binder of the present invention includes 95% by weight of a single-component high-strength polyurethane and 5% by weight of EVA, wherein the single-component high-strength polyurethane includes the following parts by weight Raw materials: 21.6% 210 polyether polyol, 22.3% isocyanate, 56.05% dichloromethane, 0.01% ethylene diamine and 0.04% diethanolamine.

[0018] A method for preparing a cement for cold-mix color permeable asphalt, including the following steps:

[0019] 1) Preparation of one-component high-strength polyurethane: Take anhydrous 210 polyether polyol and part of dichloromethane into the reaction kettle, connect the condensing device and heat up to 60°C with stirring, slowly add isocyanate dropwise to the reaction kettle, and continue stirring Then add the remaining dichloromethane; after stirring evenly, slowly add the polymerization catalyst, continue to stir and add dichloromethane; after stirring, the...

Embodiment 2

[0025] The formulation of the cold-mix color permeable asphalt binder of the present invention includes 90% by weight of a single-component high-strength polyurethane and 10% by weight of EVA, wherein the single-component high-strength polyurethane includes the following parts by weight Raw materials: 17.2% of 210 polyether polyol, 24.3% of isocyanate, 58.45% of methylene chloride, 0.02% of ethylenediamine and 0.03% of diethanolamine.

[0026] A method for preparing a cement for cold-mix color permeable asphalt, including the following steps:

[0027] 1) Preparation of one-component high-strength polyurethane: Take anhydrous 210 polyether polyol and part of dichloromethane into the reaction kettle, connect the condensing device and heat up to 60°C with stirring, slowly add isocyanate dropwise to the reaction kettle, and continue stirring Then add the remaining dichloromethane; after stirring evenly, slowly add the polymerization catalyst, continue to stir and add dichloromethane; a...

Embodiment 3

[0033] The formulation of a binder for cold-mix color permeable asphalt of the present invention includes 93% by weight of single-component high-strength polyurethane and 7% by weight of EVA, wherein the single-component high-strength polyurethane includes the following parts by weight Raw materials: 23.2% 210 polyether polyol, 18.3% isocyanate, 58.43% dichloromethane, 0.02% ethylene diamine and 0.05% diethanolamine.

[0034] A method for preparing a cement for cold-mix color permeable asphalt, including the following steps:

[0035] 1) Preparation of one-component high-strength polyurethane: Take anhydrous 210 polyether polyol and part of dichloromethane into the reaction kettle, connect the condensing device and heat up to 60°C with stirring, slowly add isocyanate dropwise to the reaction kettle, and continue stirring Then add the remaining dichloromethane; after stirring evenly, slowly add the polymerization catalyst, continue to stir and add dichloromethane; after stirring, the...

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Abstract

The invention belongs to the technical field of road pavement materials and particularly relates to a cold-mix colored porous asphalt cement preparation method. A formula comprises, by weight, 90-95% of one-component high-strength polyurethane and 5-10% of EVA (ethylene-vinyl acetate copolymer), wherein the one-component high-strength polyurethane comprises, by weight, 17.8-23.2% of polyether polyol 210, 18.5-24.9% of isocyanate, 52.2-58.6% of dichloromethane and 0.04-0.07% of polymerization catalyst. The preparation method includes 1), preparing the one-component high-strength polyurethane; 2), mixing the one-component high-strength polyurethane with the EVA according to weight percentages of 90-95% and 5-10% so as to obtain cold-mix colored porous asphalt cement. All indexes of the cold-mix colored porous asphalt cement prepared according to the formula and the preparation method reach or exceed national standards, and porous asphalt produced from the cement has more excellent durability, high rutting resistance and the like.

Description

Technical field [0001] The invention relates to a method for preparing a cementitious material for cold-mix color permeable asphalt, and belongs to the technical field of road paving materials. Background technique [0002] With the development of society, permeable paving materials are more and more commonly used in our daily lives. At present, the two most commonly used permeable paving materials are mainly: permeable cement concrete and permeable asphalt concrete. The raw materials of permeable cement concrete are easy to obtain, no rutting, and good durability. However, due to its own material characteristics, it is easy to break and block, resulting in poor water permeability. The permeable asphalt concrete has a higher water permeability, but its adhesion is poor, rutting resistance and durability are poor. [0003] In summary, in order to solve the problems of poor adhesion, rutting resistance, and durability of the existing permeable asphalt concrete, it is urgent to inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L75/08C08L23/08C08G18/48C08G18/16C08G18/18
CPCC08L75/08C08G18/168C08G18/1825C08G18/48C08L95/00C08L2205/03C08L23/0853
Inventor 邵剑徐峰
Owner HANZHOU LANNAS ROAD ENG TECH CO LTD
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