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Direct-feeding type asphalt warm-mixing material and preparation method thereof
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A direct-injection, asphalt technology, applied in the field of road construction material additives and its preparation, to achieve the effects of saving energy, reducing mixing costs, and reducing emissions
Inactive Publication Date: 2015-08-19
江苏燕宁新材料科技发展有限公司
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Abstract
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Problems solved by technology
[0005] The main purpose of the present invention is to overcome the defects of the existing hot-mix asphalt, and provide a new type of direct-throwing asphalt warm-mix material and its preparation method, to prevent the aging problem of asphalt mixture, so that it is more suitable for practical use, and Has industrial utility value
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Embodiment 1
[0021] The operating steps for preparing the direct throw type asphalt warm mix material of the present invention are as follows:
[0022] 1) Weigh 1000g of acetone and place it in a three-neck flask, heat and keep it warm to 45°C;
[0023] 2) After mixing 500g of polyethylene wax and 20g of maleic anhydride, pour it into a three-necked flask, start stirring, and after it is completely dissolved, raise the temperature to 70°C to evaporate acetone;
[0024] 3) Raise the temperature, and when the mixture in the three-necked flask is in a molten state, feed nitrogen, then slowly drop in the complexing agent EDTA5g, stir while heating, until uniformly mixed;
[0025] 4) Continue to raise the temperature to 130°C and stir for 2 hours to obtain a precipitate;
[0026] 5) washing and filtering the precipitate, and drying the filtered precipitate in a drying oven at 60° C. for 6 hours, and the dried precipitate is a copolymer of polyethylene wax-maleic anhydride;
[0027] 6) Take 30...
Embodiment 2
[0029] The operating steps for preparing the direct throw type asphalt warm mix material of the present invention are as follows:
[0030] 1) Weigh 1000g of acetone and place it in a three-neck flask, heat and keep it warm to 45°C;
[0031] 2) After mixing 500g of polyethylene wax and 30g of maleic anhydride, pour it into a three-neck flask, start stirring, and after it is completely dissolved, raise the temperature to 70°C to evaporate acetone;
[0032] 3) Raise the temperature, and when the mixture in the three-necked flask is in a molten state, feed nitrogen, then slowly drop in the complexing agent EDTA10g, and stir while heating until uniformly mixed;
[0033] 4) Continue to raise the temperature to 150°C and stir for 4 hours to obtain a precipitate;
[0034] 5) washing and filtering the precipitate, and drying the filtered precipitate in a drying oven at 60° C. for 6 hours, and the dried precipitate is a copolymer of polyethylene wax-maleic anhydride;
[0035] 6) Take ...
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Abstract
The invention discloses a direct-feeding type asphalt warm-mixing material. The direct-feeding type asphalt warm-mixing material is a mixture of a copolymer of polyethylenewax-maleic anhydride and zeolitepowder. The preparation method of the direct-feeding type asphalt warm-mixing material comprises the following steps: (1) preparing the copolymer of polyethylenewax-maleic anhydride; (2) weighing the copolymer of polyethylenewax-maleic anhydride and mixing with the zeolitepowder to obtain the target product. By adopting the warm-mixing material, the construction workability of the asphalt mixture can be effectively improved, the temperatures of the asphalt mixture during the mixing, paving and grinding processes are 20-40 DEG C lower than those of the traditional hot-mix asphalt mixture, and each index of the warm-mixing material can reach the performance index of the traditional hot-mix asphalt mixture. By adopting the warm-mixing material provided by the invention, special added equipment is not needed, the production is convenient, and the yield of an asphalt mixing plant is not influenced.
Description
technical field [0001] The invention relates to a road construction material additive and a preparation method thereof, in particular to a direct-throwing asphalt warm-mix material and a preparation method thereof. Background technique [0002] As a seamless continuous pavement, asphalt road is widely used because it has sufficient mechanical strength, can adapt to various driving loads, and has the characteristics of stable driving, comfortable driving, low noise and easy maintenance. [0003] At present, the familiar asphalt mixtures for asphalt pavement construction and maintenance mainly include hot mix asphalt mixture and cold mix asphalt mixture. Judging from the quantity ratio used, hot mix asphalt mixture accounts for the vast majority. With the continuous improvement of people's awareness level, they began to realize the existence of problems such as toxic waste gas, excessive energy consumption and aging in the production and use of hot mix asphalt mixture; in add...
Claims
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Application Information
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