Asphalt modifier for bituminous concrete pavement and method for preparing same
A technology of asphalt modifier and asphalt concrete, which is applied in the direction of building components, building insulation materials, buildings, etc., and can solve the problems of high polymer asphalt modifier price, insufficient road dynamic stability, and easy segregation , to achieve the effect of improving anti-rutting ability, low production cost and convenient operation
Inactive Publication Date: 2007-02-21
YUNNAN UNIV
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Problems solved by technology
High molecular polymer asphalt modifier itself is expensive, requires expensive special supporting equipment when used, and is prone to segregation during use
Silicon-modified asphalt modifiers, such as the silicon-modified asphalt modifier disclosed in the Chinese patent document with application number 00113119.2, that is, existing diatomite processed products used as asphalt modifiers, also have certain limitations in use , mainly because the dynamic stability of the road is not high enough
Method used
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Embodiment 2
[0015] Example 2: Kaolin, a clay mineral mainly composed of kaolinite, namely coal-measure kaolin in eastern Yunnan, was roasted at 900° C. for 5 hours to form mullite, which was then cooled and pulverized into powder. Take respectively 120 kilograms of the powdery product, 320 kilograms of Lusheng brand DE-99 asphalt modifier and 560 kilograms of powdery sulfur, fully stir and mix to obtain 1 ton of the inventive product of this embodiment, send it to pass the quality inspection, and pack it into the warehouse .
[0016] Using the inventive product of this embodiment to mix the mixture to pave asphalt concrete roads, through actual use, the effect is very good, and it is rated as a high-quality project.
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The asphalt modifier consists of processed diatomite 30-50 wt%, and clay mineral with kaolin as main component and through roasting at 750-950 deg.c for 5-8 hr, except sulfur. During construction, the asphalt modifier, asphalt, aggregate, etc. are stirred in asphalt concrete stirrer in traditional technological process. The asphalt modifier of the present invention has low cost, and can raise the high and low temperature performance and water stability of asphalt concrete obviously, raise the dynamic stability and track resistance of asphalt concrete road, and prolong the service life of asphalt concrete road obviously.
Description
technical field [0001] The invention relates to an asphalt modifier and a preparation method thereof. Background technique [0002] According to statistics, 75% of my country's highways are made of asphalt concrete pavement. Due to the base asphalt itself, the road has poor heat-temperature performance and rapid damage, which seriously cannot meet the needs of transportation. Therefore, it is necessary to modify the asphalt. High molecular polymers and silicon-modified asphalt are used as road asphalt modifiers. High molecular polymer asphalt modifier itself is expensive, requires expensive special supporting equipment when used, and is prone to segregation during use. Silicon-modified asphalt modifiers, such as the silicon-modified asphalt modifier disclosed in the Chinese patent document with application number 00113119.2, that is, existing diatomite processed products used as asphalt modifiers, also have certain limitations in use , mainly because the dynamic stability...
Claims
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IPC IPC(8): C08K3/34C08L95/00
Inventor 李聪王家强欧灵澄荷严萍
Owner YUNNAN UNIV