A high-modulus warm-mix asphalt additive and a preparing method and application thereof

A warm mix asphalt, high modulus technology, used in climate change adaptation, building insulation materials, building components, etc., can solve the problems of high equipment requirements, difficult reaction control, high reaction temperature, and achieve excellent water damage resistance, Mild reaction conditions and improved overall performance

Active Publication Date: 2019-05-21
WUHAN MUNICIPAL CONSTR GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent CN103102707B discloses a high modulus asphalt modifier, which is prepared by blending and granulating waste plastics. Although the cost is low and the preparation method is simple; but there is a lack of relevant experiments and application performance evaluation of asphalt mixture
CN104194366B discloses a low-temperature-resistant high-modulus asphalt modifier and its preparation method, which overcomes the problem of significant differences in the blending process of waste plastics and rubber through cold processing, and the prepared modifier has excellent high and low temperature performance; but the application The occasion is limited, it is difficult to adapt to the low temperature construction environment
CN102976649B discloses a warm mix agent for waste rubber powder modified asphalt and a preparation method thereof. The prepared warm mix agent can significa

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  • A high-modulus warm-mix asphalt additive and a preparing method and application thereof
  • A high-modulus warm-mix asphalt additive and a preparing method and application thereof
  • A high-modulus warm-mix asphalt additive and a preparing method and application thereof

Examples

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Example Embodiment

[0040] Example 1

[0041] A high-modulus warm-mix asphalt additive, and its preparation method includes the following steps:

[0042] 1) Weigh each raw material according to the proportion. Each raw material and its weight parts include: 100 parts of high modulus warm mix main agent (including 50 parts of polyethylene powder, 10 parts of polyethylene wax, 15 parts of ethylene bis-stearamide Parts, 25 parts of pentaerythritol stearate), 40 parts of thermoplastic elastomer (28 parts of linear SBS, 12 parts of star SBS), 60 parts of epoxy soybean oil, 10 parts of terpene resin, 3 parts of monoamino silane coupling agent , 1 part of tris(2,4-di-tert-butyl) phenyl phosphite antioxidant, 2 parts of montmorillonite, 0.5 part of sulfur;

[0043] 2) Place the weighed thermoplastic elastomer and vegetable oil in a horizontal elastomer mixer at room temperature for 2 hours and then leave it to stand for 6 hours to obtain an oil-extended thermoplastic elastomer;

[0044] 3) Mix the weighed high-...

Example Embodiment

[0051] Example 2

[0052] A high-modulus warm-mix asphalt additive, and its preparation method includes the following steps:

[0053] 1) Weigh all the raw materials according to the proportion. Each raw material and its weight parts include: 100 parts of high modulus warm mix main agent (including 50 parts of polyethylene powder, 15 parts of ethylene bisstearamide, 20 parts of oleic acid amide) Parts, 15 parts of stearic acid monoglyceride), 80 parts of thermoplastic elastomer (64 parts of linear SBS, 16 parts of star SBS), 60 parts of epoxy peanut oil, 8 parts of petroleum resin, 5 parts of diaminosilane coupling agent, Tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid] pentaerythritol ester 2 parts, nano silica 3 parts, sulfur 1.0 part;

[0054] 2) Put the weighed thermoplastic elastomer and vegetable oil in a horizontal elastomer mixer at room temperature for 3 hours and then leave it to stand for 5 hours to obtain an oil-extended thermoplastic elastomer;

[0055] 3) Mix t...

Example Embodiment

[0062] Example 3

[0063] A high-modulus warm-mix asphalt additive, and its preparation method includes the following steps:

[0064] 1) Weigh each raw material according to the proportion. Each raw material and its weight parts include: 100 parts of high modulus warm mix main agent (60 parts of polyethylene powder, 10 parts of Fischer-Tropsch wax, 5 parts of ethylene bis-stearamide , 10 parts of pentaerythritol stearate, 15 parts of oleic acid amide), 60 parts of thermoplastic elastomer (45 parts of linear SBS, 15 parts of star SBS), 30 parts of epoxy corn oil, 50 parts of epoxy rapeseed oil, terpene 10 parts of olefin resin, 3 parts of triaminosilane coupling agent, 5 parts of tris(2,4-di-tert-butyl)phenyl phosphite antioxidant, 3 parts of diatomaceous earth, 1.5 parts of sulfur;

[0065] 2) Put the weighed thermoplastic elastomer and vegetable oil in a horizontal elastomer mixer at room temperature to stir and fill the oil for 1 hour, and then let it stand for 7 hours to obtain t...

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Abstract

The invention belongs to the field of traffic engineering admixtures, and relates to preparation and application of a high-modulus warm-mix asphalt additive. The additive is prepared mainly from a high modulus warm-mix main agent, a thermoplastic elastomer, vegetable oil, a crosslinking agent, a coupling agent, an antioxidant, an antiager and tackifying resin through single-screw low-temperature extrusion and granulation. The additive prepared can be direly added into a material mixture, and is suitable for high-modulus asphalt pavement engineering and winter low-temperature construction environments having high requirements on environment protection. An asphalt mixture prepared by utilizing the additive has excellent high-temperature performance, high dynamic modulus, good low-temperaturetoughness, excellent resistance to water damage, and the like, can reduce temperature for construction such as material mixture mixing, paving and grinding by 20-30 DEG C, achieves a warm mix effects, and is suitable for promotion and application.

Description

technical field [0001] The invention belongs to the field of traffic engineering admixtures, in particular to a high-modulus warm-mix asphalt additive and its preparation method and application. Background technique [0002] In recent years, with the rapid development of the national economy and the continuous expansion of the scale of road construction, the problems of vehicle overload and heavy-duty vehicles have appeared, which has caused increasingly serious damage to the asphalt pavement. High modulus asphalt pavement technology is different from the traditional addition of anti-rutting agent to improve the anti-rutting ability of the pavement. It starts from the overall structural design of the pavement, and achieves good engineering and economic benefits by improving the comprehensive requirements of materials and reducing the thickness of the pavement. [0003] High-modulus asphalt pavement technology originated in France in the last century, which put forward clear ...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L91/00C08L23/06C08L53/02C08L45/00C08L57/02C08K13/02C08K5/20C08K5/103C08K5/544C08K5/526C08K3/34C08K3/36C08K3/06
CPCY02A30/30
Inventor 方四发孙聪程金梁洪锦祥熊子佳肖铭钊卢吉郭鹏尹炼张宏斌
Owner WUHAN MUNICIPAL CONSTR GROUP
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