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Reactive viscosity modified emulsified asphalt waterproof coating and preparation method thereof

A technology of emulsified asphalt and waterproof coatings, which is applied in the direction of asphalt coatings, chloroprene homopolymer coatings, coatings, etc., and can solve problems such as loss of sealing and waterproof effects, decreased cohesive force, and bridge safety threats

Active Publication Date: 2015-12-02
XI NIU PI WATERPROOFING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The above-mentioned road and bridge waterproof coatings are all directly coated with the surface of the road and bridge for waterproof construction, mainly through the formation of physical adsorption and certain mortise and tenon effects between the road and bridge waterproof coating and the concrete base surface to bond to the base surface On the surface, it is very easily affected by factors such as environmental humidity and heat cycle, water vapor expansion, and grass-roots movement, which will reduce the bonding force, cause the process of desorption and tenon removal, lose the sealing and waterproof effect, and pose a greater threat to the safety of the bridge.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Asphalt 3000g modifier 1500g emulsifier 15g

[0041] Cross-linking agent 50g water 3000g

[0042] Wherein the asphalt is No. 70 petroleum asphalt;

[0043] The modifier is SBS asphalt modifier;

[0044] The emulsifier is alkyl dimethyl hydroxyethyl ammonium chloride;

[0045] The crosslinking agent is isopropyl tris(dioctyl pyrophosphate acyloxy) titanate;

[0046] Stir the asphalt and modifier at 120°C for 1 hour to fully melt and mix to obtain mixture A; grind mixture A with a colloid mill to obtain mixture B; start the emulsifier, and add mixture B and rubber emulsifier to the The emulsifier is used to emulsify the asphalt mixture to prepare an emulsion, then add a cross-linking agent and stir evenly to obtain the product.

Embodiment 2

[0048] Asphalt 5000g modifier 2000g emulsifier 300g

[0049] Cross-linking agent 300g water 5000g

[0050] Wherein the asphalt is No. 120 petroleum asphalt;

[0051] The modifier is SBR asphalt modifier;

[0052] The emulsifier is an alkylhydroxy amidopolyamine;

[0053] The crosslinking agent is vinyltriethoxysilane;

[0054] The preparation method of the reactive viscosity modified emulsified asphalt waterproof coating of the present invention comprises the following steps: stirring the asphalt and the modifier at 180°C for 3 hours to make them fully melt and mix to obtain the mixture A; Grind to obtain mixture B; start the emulsifier, add mixture B and rubber emulsifier to the emulsifier at the same time, emulsify the asphalt mixture to prepare an emulsion, then add a crosslinking agent, stir evenly, and the product is obtained.

Embodiment 3

[0056] Asphalt 4000g modifier 1800g emulsifier 200g

[0057] Cross-linking agent 60g water 4000g

[0058] Wherein the asphalt is No. 90 petroleum asphalt;

[0059] The modifier is APP asphalt modifier;

[0060] The emulsifier is cetyltrimethylammonium bromide;

[0061] Crosslinking agent distearoyloxyisopropyl aluminate;

[0062] The preparation method of the reactive viscosity modified emulsified asphalt waterproof coating of the present invention comprises the following steps: stirring the asphalt and the modifier at 150°C for 2 hours to make them fully melt and mix to obtain the mixture A; Grind to obtain mixture B; start the emulsifier, add mixture B and rubber emulsifier to the emulsifier at the same time, emulsify the asphalt mixture to prepare an emulsion, then add a crosslinking agent, stir evenly, and the product is obtained.

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Abstract

The invention aims to provide a reaction bonding modified emulsified asphalt waterproof paint and a preparation method thereof. The reaction bonding modified emulsified asphalt waterproof paint comprises asphalt, a modifying agent, an emulsifying agent, a cross-linking agent and water. In the formula system of the reaction bonding modified emulsified asphalt waterproof paint, more modifying agents in an appropriate amount are adopted compared with the prior art, so that a rubber-asphalt mixture can achieve a good emulsifying effect, the elasticity and strength of a dried sealing layer are greatly improved, and the sealing effect can be better and lasting; and by using the cross-linking agent, a chemical coupling effect is achieved between the paint and concrete, so that the cohesive force of the concrete is promoted. The reaction bonding modified emulsified asphalt waterproof paint can be applied to waterproof construction of wall surfaces, roofs, roads, bridges and the like, and has a very high practical value.

Description

technical field [0001] The invention relates to the field of sealing and waterproofing, in particular to a reactive viscosity modified emulsified asphalt waterproof coating and a preparation method thereof. Background technique [0002] In the prior art, improper waterproof materials on the bridge surface will cause water seepage on the bridge deck, corrosion of steel bars, spalling of the pavement layer, alkali-aggregate reaction, and concrete expansion due to steel bar corrosion, which seriously affects the bridge. Durability and normal service life. Therefore, people pay more and more attention to the waterproof treatment of road bridges. [0003] At present, the waterproof treatment of road and bridge surfaces mostly uses road and bridge waterproof coatings, modified asphalt pre-paved waterproof membranes or modified asphalt composite waterproof membranes for waterproofing. In particular, road and bridge waterproof coatings are the most widely used. Road and bridge wat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D195/00C09D153/02C09D123/22C09D111/00C09D109/06C09D7/12C09D4/00C09D4/06
Inventor 卢桂才朱方伍陈立斌周为为赵晓岚
Owner XI NIU PI WATERPROOFING TECH CO LTD
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