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Inorganic modified asphalt and preparation method thereof

An inorganic modification and asphalt technology, applied in building components, building insulation materials, buildings, etc., can solve problems such as the problem of rutting that cannot be fundamentally solved, and achieve the effect of alleviating high-temperature rutting diseases, hindering heat loss, and reducing total heat.

Active Publication Date: 2015-08-05
TIANJIN MUNICIPAL ENG DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Engineering practice has proved that the application of these technologies cannot fundamentally solve the rutting problem

Method used

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  • Inorganic modified asphalt and preparation method thereof
  • Inorganic modified asphalt and preparation method thereof

Examples

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Effect test

Embodiment 1

[0021] An inorganic modified asphalt, made by mixing the following raw materials in parts by weight: 100 parts of basic asphalt, 5.5 parts of boronite, 3.5 parts of albite, 4 parts of silica gel powder, 1 part of microcrystalline cellulose, and 0.5 part of triethanolamine , 2 parts of auxiliary agent; The auxiliary agent is Iranian rubber oil extraction oil. The base asphalt is Shell 90# base asphalt; the boron is manganese boronite, and the fineness is 100 mesh; the albite is albite powder, and the fineness is 100 mesh; the silica gel powder is column The layer chromatography silica gel powder has a fineness of 100-400 meshes; the microcrystalline cellulose is microcrystalline cellulose with a cellulose content ≥ 80%; the purity of the triethanolamine must be above 80%.

[0022] The preparation method of the inorganic modified asphalt in this example is as follows: heat the base asphalt to 120°C, then add triethanolamine and additives to the heated base asphalt, stir well and...

Embodiment 2

[0024] The inorganic modified asphalt of this embodiment is prepared by mixing the following raw materials in parts by weight: 100 parts of basic asphalt, 10.5 parts of boborite, 6.5 parts of albite, 6 parts of silica gel powder, 1.5 parts of microcrystalline cellulose, triethanolamine 0.5 parts, 3 parts of auxiliary agent; said auxiliary agent is furfural extract oil. The base pitch is Shell 90# matrix pitch; the boron is manganese boron, and the fineness is 300 mesh; the albite is albite powder, and the fineness is 100 mesh; the silica gel powder is column Layer chromatography silica gel powder, the fineness is 100-400 mesh;

[0025] The preparation method of the inorganic modified asphalt in this example is as follows: heat the base asphalt to 140°C, then add triethanolamine and additives to the heated base asphalt, and then add boborite, albite, and silica gel to the heated base asphalt. powder and microcrystalline cellulose; using a high-speed shearing machine to shear t...

Embodiment 3

[0027] The inorganic modified asphalt of this embodiment is prepared by mixing the following raw materials in parts by weight: 100 parts of basic asphalt, 15.5 parts of boronite, 10.5 parts of albite, 8 parts of silica gel powder, 2 parts of microcrystalline cellulose, triethanolamine 1 part, 4 parts of auxiliary agent; The auxiliary agent is Iranian rubber oil extraction oil. The base asphalt is Shell 90# base asphalt; the boron is manganese boronite with a fineness of 500 mesh; the albite is albite powder with a fineness of 300 mesh; the silica gel powder is column Layer chromatography silica gel powder, the fineness is 100-400 mesh;

[0028] The preparation method of the inorganic modified asphalt in this example is as follows: heat the base asphalt to 160°C, then add triethanolamine and additives to the heated base asphalt, stir well and then add boronite, albite, silica gel powder and microcrystalline cellulose; using a high-speed shearing machine to shear the obtained m...

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Abstract

The invention relates to inorganic modified asphalt and a preparation method thereof, wherein the inorganic modified asphalt is prepared by mixing the following raw materials comprising, by weight, 100 parts of basic asphalt, 5.5-15.5 parts of boracites, 3.5-10.5 parts of albite, 4-8 parts of silica gel powder, 1-2 parts of microcrystalline cellulose, 0.5-1 part of triethanolamine and 2-4 parts of an additive being extract oil of Iran rubber oil or furfural extract oil. The inorganic modified asphalt is significant in temperature-controlling effect, is low in cost, is simple in preparation process and is convenient to construct.

Description

technical field [0001] The invention belongs to the technical field of road materials, and in particular relates to an inorganic modified asphalt and a preparation method thereof. Background technique [0002] Rutting is an important disease of asphalt pavement. Studies have found that high temperature is the most direct cause of rutting. High temperature causes the rheological properties of asphalt to change from viscoelasticity to plasticity, and the modulus of stiffness decreases sharply. If it is lowered, severe rutting will appear under the action of vehicle load. At present, when solving the rutting problem of asphalt pavement, technical measures to improve the high-temperature stability of asphalt mixture are mainly adopted, that is, to improve the high-temperature performance of asphalt by modifying asphalt, or to improve the high-temperature performance of asphalt by using skeleton-embedded aggregate gradation, etc. Rutting resistance of the mixture. Engineering p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L83/04C08K13/02C08K3/38C08K3/34C08K5/17
Inventor 冯炜王朝辉王晓华孙晓龙王新岐梁毅超王志华刘润有练象平高志伟甄曦张贵生李继昉杨越刘俊贺海朱彬徐真真严西华狄升贯郑建峰
Owner TIANJIN MUNICIPAL ENG DESIGN & RES INST
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