A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Ultrathin wearing layer heat recycling method
The invention discloses a heat recycling method for an ultrathin wearing layer, and relates to a recycling method for a road cover. An ultra-thin wearing layer road section is selected for on-site thermal regeneration; carrying out hot milling sampling to obtain an RAP material, and measuring an asphalt-aggregate ratio and mineral aggregate gradation through extraction and screening tests; the regenerated product is used as an AC type finishing coat, and the grading range is AC-10, AC-13 or AC-16 grading; the mix proportion design of the regenerated mixture is completed through the test; carrying out on-site thermal regeneration; and testing whether the performance indexes meet the design requirements or not, and detecting the acceptance indexes of the AC type finishing coat 24 hours after paving, rolling and forming. The semi-open graded ultrathin wearing layer can be regenerated into a dense graded AC type mixture, so that the use value of old road materials is fully exerted, and the construction cost of highway engineering is reduced.
一种超薄磨耗层热再生利用方法，涉及一种道路罩面再利用方法。选定超薄磨耗层路段用于现场热再生；进行热铣刨取样获得RAP料，通过抽提和筛分试验测得油石比和矿料级配；再生后作为AC型罩面层使用，级配范围选择AC‑10、AC‑13或AC‑16级配；试验完成再生混合料的配合比设计；进行现场热再生；试验测试性能指标是否达到设计要求，在摊铺碾压成型24小时后对AC型罩面层检测验收指标。可以将半开级配的超薄磨耗层再生为密级配的AC型混合料，充分发挥旧路材料的使用价值，降低公路工程造价。
Ultrathin wearing layer heat recycling method
The invention discloses a heat recycling method for an ultrathin wearing layer, and relates to a recycling method for a road cover. An ultra-thin wearing layer road section is selected for on-site thermal regeneration; carrying out hot milling sampling to obtain an RAP material, and measuring an asphalt-aggregate ratio and mineral aggregate gradation through extraction and screening tests; the regenerated product is used as an AC type finishing coat, and the grading range is AC-10, AC-13 or AC-16 grading; the mix proportion design of the regenerated mixture is completed through the test; carrying out on-site thermal regeneration; and testing whether the performance indexes meet the design requirements or not, and detecting the acceptance indexes of the AC type finishing coat 24 hours after paving, rolling and forming. The semi-open graded ultrathin wearing layer can be regenerated into a dense graded AC type mixture, so that the use value of old road materials is fully exerted, and the construction cost of highway engineering is reduced.
一种超薄磨耗层热再生利用方法，涉及一种道路罩面再利用方法。选定超薄磨耗层路段用于现场热再生；进行热铣刨取样获得RAP料，通过抽提和筛分试验测得油石比和矿料级配；再生后作为AC型罩面层使用，级配范围选择AC‑10、AC‑13或AC‑16级配；试验完成再生混合料的配合比设计；进行现场热再生；试验测试性能指标是否达到设计要求，在摊铺碾压成型24小时后对AC型罩面层检测验收指标。可以将半开级配的超薄磨耗层再生为密级配的AC型混合料，充分发挥旧路材料的使用价值，降低公路工程造价。
Ultrathin wearing layer heat recycling method
一种超薄磨耗层热再生利用方法
CAO JIWEI (author) / WANG YIPENG (author) / GUO SHAOHUA (author) / ZHAO JINCHENG (author) / LIU MING (author) / LIU LI'AN (author) / ZHOU HANJIE (author)
2022-10-21
Patent
Electronic Resource
Chinese
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