Mixture containing slow-release saline compound, composite phase-change material and asphalt and preparation method of mixture
A technology of composite phase change material and asphalt mixture, which is applied in the field of pavement materials, can solve the problems of high cost of materials, poor deicing and snow removal effect, and difficult construction, and achieves low cost of materials, reduction of snow removal times, and low construction difficulty. Effect
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[0029] Example 1:
[0030] This slow-release salt compound phase change material asphalt mixture includes the following components by weight:
[0031] Slow-release salt: 2 parts, composite phase change material: 0.75 parts, pitch: 5 parts, auxiliary materials: 102 parts.
[0032] The fineness of the sustained-release salt is 200 mesh sieve.
[0033] In this embodiment, the chloride salt in the slow-release salt is anhydrous calcium chloride, the pumice powder is volcanic stone powder, and the mass ratio of anhydrous calcium chloride to volcanic stone powder is 4:1.
[0034] Of course, in other embodiments, the chloride salt may be potassium chloride or sodium chloride.
[0035] In this embodiment, the composite phase change material is composed of polyethylene glycol and organic bentonite, wherein the organic bentonite accounts for 5% of the weight of the polyethylene glycol.
[0036] The auxiliary materials include the following components by weight: 52 parts of coarse aggregate, 48 part...
Example Embodiment
[0041] Example 2:
[0042] This slow-release salt compound phase change material asphalt mixture includes the following components by weight:
[0043] Slow-release salt: 3 parts, composite phase change material: 0.9 parts, pitch: 6 parts, auxiliary materials: 104.2 parts.
[0044] The fineness of the sustained-release salt is 200 mesh sieve.
[0045] In other embodiments, the fineness of the sustained-release salt can also be any fineness of 150-300 mesh.
[0046] In this embodiment, the chloride salt in the slow-release salt is anhydrous calcium chloride, the pumice powder is volcanic stone powder, and the mass ratio of anhydrous calcium chloride to volcanic stone powder is 6:1.
[0047] In other embodiments, the chloride salt may be potassium chloride or sodium chloride.
[0048] In this embodiment, the composite phase change material is composed of polyethylene glycol and organic bentonite, wherein the organic bentonite accounts for 9% of the weight of the polyethylene glycol.
[0049] ...
Example Embodiment
[0055] Example 3:
[0056] In this embodiment, the slow-release salt compound: 2.5 parts, the composite phase change material: 0.8 parts, the pitch: 5.1 parts, and the auxiliary materials: 103.1 parts.
[0057] The fineness of the sustained-release salt is 200 mesh sieve.
[0058] In other embodiments, the fineness of the sustained-release salt can also be any fineness of 150-300 mesh.
[0059] In this embodiment, the auxiliary material includes the following components by weight: 52 parts of coarse aggregate, 49 parts of fine aggregate, and 2.1 parts of mineral powder.
[0060] In this embodiment, the raw materials used in the slow-release salt compound and the composite phase change material are as follows.
[0061] Chlorine salt, using anhydrous calcium chloride produced by Beijing Compuhuiwei Technology Co., Ltd.; the share is 65 shares.
[0062] The pumice powder is produced by Shangyi County Wanjing Pumice Technology Co., Ltd., the specification is volcanic stone powder (red), the f...
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