CN1359870A - 一种废旧沥青砼还原再生利用的方法 - Google Patents

一种废旧沥青砼还原再生利用的方法 Download PDF

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CN1359870A
CN1359870A CN00136702A CN00136702A CN1359870A CN 1359870 A CN1359870 A CN 1359870A CN 00136702 A CN00136702 A CN 00136702A CN 00136702 A CN00136702 A CN 00136702A CN 1359870 A CN1359870 A CN 1359870A
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asphalt concrete
asphalt
measuring
old
old material
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毕龙恩
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/16—Waste materials; Refuse from building or ceramic industry
    • C04B18/167—Recycled materials, i.e. waste materials reused in the production of the same materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Civil Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Road Paving Machines (AREA)
  • Working-Up Tar And Pitch (AREA)

Abstract

本发明公开了一种废旧沥青砼还原再生利用的方法,先将废旧沥青砼进行清洗,并测定旧料的混合级配、沥青含量及针入度,再将清洗后的旧料进行加压热分解,再根据测定的混合级配进行筛分,然后将筛分后的料进行加热,同时,根据测定的针入度加入再生剂,根据测定的沥青含量决定加入沥青油,最后进行搅拌,使旧沥青砼得到还原再生。这样,再生每吨所需的沥青油只相当于原来的5%,不仅节约了石油资源,而且避免了废旧沥青对环境的污染。

Description

一种废旧沥青砼还原再生利用的方法
本发明涉及一种废旧沥青还原再生方法。
目前国内对外对修路取出的废旧沥青砼的再生还原利用还没有一个很好的方法，只是稍加处理后用作筑路底料，而这种底料又对路面的质量有所影响，多数情况下人们将这些废料当作垃圾扔掉，这不仅会造成石油资源的浪费，更重要的是它们会对环境造成极大的污染，沥青中的一些致癌物质会长其威胁着人类的健康，日积月累的沥青垃圾一定会影响到人类的生存与发展。
本发明的目的就是提供一种废旧沥青砼还原再生的方法，它可以使废旧沥青砼得到完全的再生利用，减少石油资源的浪费，减少对环境的污染。
为了达到以上目的，本发明是通过以下过程实现的：将废旧沥青砼进行清洗，测定旧料的混合级配、沥青含量及针入度，将清洗后的旧料进行加压热分解，温度为100-120℃，压强为2-6Kg/cm2，分解用时约15-20分钟，根据测定的混合级配进行筛分，将多余的细料筛出，达到粗粒式级配标准，然后将筛分后的料进行加热，温度到140-150℃，同时，根据测定的针入度加入旧料总重量的0.5-1.5‰的再生剂，根据测定的沥青含量决定加入旧料总量1.5-2.5‰的沥青油，最后进行搅拌，使旧沥青砼得到还原再生。
这种方法能使旧沥青砼在最短的时间内达到分离并进行新的组合，不破坏沥青油网状结构的质量，还原再生后的沥青砼完全恢复原来的性能，且能保证在38℃、60℃、99℃、135℃情况下的粘度。这样，再生每吨所需的沥青油只相当于原来的5％，不仅节约了石油资源，而且避免了废旧沥青对环境的污染。

Claims (1)

1、一种废旧沥青砼还原再生利用的方法，其特征是：先将废旧沥青砼进行清洗，并测定旧料的混合级配、沥青含量及针入度，再将清洗后的旧料进行加压热分解，温度为100-120℃，压强为2-6Kg/cm2，分解用时约15-20分钟，再根据测定的混合级配进行筛分，将多余的细料筛出，达到粗粒式级配标准，然后将筛分后的料进行加热，温度到140-150℃，同时，根据测定的针入度加入旧料总重量的0.5-1.5‰的再生剂，根据测定的沥青含量决定加入旧料总量1.5-2.5‰的沥青油，最后进行搅拌，使旧沥青砼得到还原再生。
CN00136702A 2000-12-22 2000-12-22 一种废旧沥青砼还原再生利用的方法 Pending CN1359870A (zh)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103113046A (zh) * 2013-03-19 2013-05-22 陕西美通路面材料科技有限公司 一种废旧塑胶与回收沥青砼合成再生利用技术
CN105683446A (zh) * 2013-04-08 2016-06-15 皇家巴姆集团股份有限公司 用于制备沥青组合物的方法
CN106186834A (zh) * 2016-07-12 2016-12-07 王雅露 一种沥青再生混凝土
CN109082985A (zh) * 2018-08-15 2018-12-25 深圳市粤通建设工程有限公司 沥青路面就地热再生施工方法
CN109736160A (zh) * 2019-03-19 2019-05-10 成都瑞欣沥青科技有限公司 一种回收旧沥青混凝土内的沥青与集料分离方法

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103113046A (zh) * 2013-03-19 2013-05-22 陕西美通路面材料科技有限公司 一种废旧塑胶与回收沥青砼合成再生利用技术
CN105683446A (zh) * 2013-04-08 2016-06-15 皇家巴姆集团股份有限公司 用于制备沥青组合物的方法
CN105683446B (zh) * 2013-04-08 2019-01-08 皇家巴姆集团股份有限公司 用于制备沥青组合物的方法
CN106186834A (zh) * 2016-07-12 2016-12-07 王雅露 一种沥青再生混凝土
CN109082985A (zh) * 2018-08-15 2018-12-25 深圳市粤通建设工程有限公司 沥青路面就地热再生施工方法
CN109082985B (zh) * 2018-08-15 2020-12-01 深圳市粤通建设工程有限公司 沥青路面就地热再生施工方法
CN109736160A (zh) * 2019-03-19 2019-05-10 成都瑞欣沥青科技有限公司 一种回收旧沥青混凝土内的沥青与集料分离方法

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