Non-cured rubber asphalt waterproof material and preparation method thereof

A bitumen waterproof material and non-curing rubber technology, which is applied in building insulation materials, plastic recycling, bulk chemical production, etc., to achieve the effect of avoiding performance failure, complex process and stable product performance

CN105542496BActive Publication Date: 2018-03-09河北交投特种材料科技有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-03-09

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Abstract

The invention discloses a non-curing rubber asphalt waterproof material and a preparation method thereof. The non-curing rubber asphalt waterproof material comprises raw materials in parts by weight as follows: 30-70 parts of base asphalt, 15-40 parts of waste tire rubber powder, 0.25-1.0 part of a desulfurizing agent, 0.8-4 parts of a composite modifier, 0.5-5 parts of a softening agent, 0.25-3 parts of a cross-linking agent and 5-15 parts of filler, wherein the grain size of the waste tire rubber powder is 20-80 meshes. The preparation method comprises steps as follows: raw material preparation, hot melting and mixture homogenization are performed; finally, the cross-linking agent and the filler in parts by weight are sequentially added to a storage tank and are stirred and mixed for 15-20 min, and the non-curing rubber asphalt waterproof material is formed. The waste tire rubber powder is directly subjected to circular shearing desulfurization by a high-shear homogenizer under the action of the desulfurizing agent in a high-temperature asphalt medium, rubber molecules are uniformly dispersed in an asphalt system in a linear structure manner and then form a stable stereoscopic meshed rubber structure with the filler under the action of the cross-linking agent, and the product performance is more stable.
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Description

technical field

[0001] The invention relates to the technical field of waterproof building materials, in particular to a non-cured rubber asphalt waterproof material and a preparation method thereof. Background technique

[0002] According to incomplete statistics, in 2014, the amount of waste tires produced in my country reached tens of millions of tons, and large-scale waste tires caused serious black pollution to the living environment of human beings. Harmless treatment and utilization of waste tires is an urgent need for social development

[0003] At present, it has become a development trend in the transportation industry to use waste tire rubber powder as an asphalt modifier for road construction and maintenance, but it is limited to the current technical level, or the simple swelling and mixing of rubber powder and asphalt, and the rubber powder only exists as a filler If it is used in the asphalt system, its performance cannot be fully exerted; or the modification...

Examples

example 1

[0024] Example 1: Taking the production of 1000 kg of non-cured rubber asphalt waterproof material of the present invention as an example, each part is 10 kg, and the ratio of raw materials used is: 74.5 parts of basic asphalt, 16.5 parts of rubber powder, 0.25 parts of desulfurizing agent, and 1 part of composite modifier. 1 part of softener, 0.25 part of cross-linking agent, 6.5 parts of filler, wherein the base asphalt is heavy traffic 70# petroleum asphalt, the rubber powder specification is 60 mesh waste tire rubber powder for bias tires, and the desulfurizer is pentachlorothiophenol , the composite modifier is SBS, the softener is pine tar, the crosslinking agent is tetramethylthiuram disulfide, and the filler is 1250 mesh light calcium carbonate; the following steps are adopted during specific production:

[0025] (1) Measure the hot-melt asphalt into the mixing tank with heating system, and put the weighed waste tire rubber powder, softener, compound modifier and desulf...

example 2

[0028] Example 2: Taking the production of 1000 kg of the non-curing rubber asphalt waterproof material of the present invention as an example, each part is 10 kg, and the raw material ratio used is: 63 parts of basic asphalt, 21 parts of waste tire rubber powder, 0.67 parts of desulfurizing agent, compound modified 1.26 parts of softening agent, 4.2 parts of softening agent, 1.3 parts of crosslinking agent, 8.53 parts of filler, wherein base asphalt is 110# petroleum asphalt, and the selection and preparation method of all the other raw materials are the same as example one.

example 3

[0029] Example 3: Taking the production of 1000 kg of the non-curing rubber asphalt waterproof material of the present invention as an example, each part is 10 kg, and the raw material ratio used is: 54.4 parts of basic asphalt, 27.2 parts of waste tire rubber powder, 0.816 parts of desulfurizing agent, compound modified 0.816 parts of agent, 2.86 parts of softening agent, 1.63 parts of crosslinking agent, 12.278 parts of filler, wherein base asphalt is crude oil catalytic oil slurry, rubber powder is 30 mesh bias tire rubber powder, the selection and preparation method of all the other raw materials are the same as example 1 .

[0030] The non-cured rubber asphalt waterproof material of the present invention has the following characteristics:

[0031] (1) Adaptability to structural deformation: The non-curing rubber asphalt material itself has excellent ductility and cohesiveness, and can adapt to the deformation and cracking of the pavement base layer and the complex deforma...