A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Road asphalt pavement surface layer polymorphic asphalt in-situ cold recycling construction method
The invention discloses a road asphalt pavement surface layer polymorphic asphalt in-situ cold regeneration construction method, which comprises the following steps of: simultaneously spraying foamed asphalt, emulsified asphalt, a normal-temperature regeneration reinforcing agent and a performance accelerant into a mixing bin of regeneration equipment, milling and mixing, and improving the point-like contact of a binding material and aggregate when the foamed asphalt is singly used; the defects of poor early strength and long curing period caused by pure use of emulsified asphalt are overcome, the defects of insufficient early strength, long curing period and emission of a large amount of VOCs gas caused by pure use of liquid asphalt are overcome, and the emulsified asphalt or liquid asphalt can improve the distribution uniformity of the binding material and improve the wrapping property of the binding material on the aggregate; and the overall construction workability is improved. In addition, in order to increase interlayer bonding and water resistance between the regeneration layer and the original layer, adhesive layer emulsified asphalt is sprayed synchronously. And the performance accelerant can increase the lubricity and improve the permeability, and is used for improving the binding force between the binding material and the old material, improving the early strength, shortening the curing time and improving the construction workability.
本发明公开了道路沥青路面面层多态沥青就地冷再生施工方法，该方法将泡沫沥青、乳化沥青、常温再生补强剂、性能促进剂同时喷洒于再生设备拌和仓内，进行铣刨拌和，改善单纯使用泡沫沥青存在的结合料与集料点状接触，裹覆不匀的缺陷，改善单纯使用乳化沥青早期强度弱，养生周期长的不足，改善单纯使用液体沥青早期强度不足、养生周期长、大量VOCs气体排放缺陷，乳化沥青或液体沥青能够改善结合料的分布均一性提高结合料对集料的裹覆性，提高整体施工和易性。此外，为了增加再生层与原层位的层间粘结和防水，同步洒布粘层乳化沥青。性能促进剂可增加润滑性、改善渗透性，用于提高结合料与旧料的结合力，提高早期强度，缩短养生时间，改善施工和易性。
Road asphalt pavement surface layer polymorphic asphalt in-situ cold recycling construction method
The invention discloses a road asphalt pavement surface layer polymorphic asphalt in-situ cold regeneration construction method, which comprises the following steps of: simultaneously spraying foamed asphalt, emulsified asphalt, a normal-temperature regeneration reinforcing agent and a performance accelerant into a mixing bin of regeneration equipment, milling and mixing, and improving the point-like contact of a binding material and aggregate when the foamed asphalt is singly used; the defects of poor early strength and long curing period caused by pure use of emulsified asphalt are overcome, the defects of insufficient early strength, long curing period and emission of a large amount of VOCs gas caused by pure use of liquid asphalt are overcome, and the emulsified asphalt or liquid asphalt can improve the distribution uniformity of the binding material and improve the wrapping property of the binding material on the aggregate; and the overall construction workability is improved. In addition, in order to increase interlayer bonding and water resistance between the regeneration layer and the original layer, adhesive layer emulsified asphalt is sprayed synchronously. And the performance accelerant can increase the lubricity and improve the permeability, and is used for improving the binding force between the binding material and the old material, improving the early strength, shortening the curing time and improving the construction workability.
本发明公开了道路沥青路面面层多态沥青就地冷再生施工方法，该方法将泡沫沥青、乳化沥青、常温再生补强剂、性能促进剂同时喷洒于再生设备拌和仓内，进行铣刨拌和，改善单纯使用泡沫沥青存在的结合料与集料点状接触，裹覆不匀的缺陷，改善单纯使用乳化沥青早期强度弱，养生周期长的不足，改善单纯使用液体沥青早期强度不足、养生周期长、大量VOCs气体排放缺陷，乳化沥青或液体沥青能够改善结合料的分布均一性提高结合料对集料的裹覆性，提高整体施工和易性。此外，为了增加再生层与原层位的层间粘结和防水，同步洒布粘层乳化沥青。性能促进剂可增加润滑性、改善渗透性，用于提高结合料与旧料的结合力，提高早期强度，缩短养生时间，改善施工和易性。
Road asphalt pavement surface layer polymorphic asphalt in-situ cold recycling construction method
一种道路沥青路面面层多态沥青就地冷再生施工方法
CHEN JIJIANG (author) / LI CHENGUANG (author)
2023-12-29
Patent
Electronic Resource
Chinese
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