常规的修补路面坑槽的弊端就沥青修补技术优缺点分析

1、常规的修补路面坑槽的弊端就沥青修补技术优缺点分析刖言A preface本人从事公路养护多年，利用旧沥青混合料再生新技术，对于解决沥青路面坑槽 随有随补的问题。利用现场挖出的旧路面混合料现场拌合、摊铺，避免了拌合料 远距离运输的料温损失，节约了运输成本；旧料再生加温用液化气，减少了环境 污染；小量生产，无需动用大型拌合设备，弥补了大型常规热拌设备不能及时和 少量生产的缺陷，降低了混合料的造价，为挖补路面坑槽开拓了新路，是公路养 护中经济实用的一项新技术。am engaged in highway maintenance for many years, material recycling tec

2、hnology of old asphalt mixture, for asphalt pavement pit with with repair problems. Using the field out of old pavement mixture mixing, paving and site, avoiding the loss of material temperature mixture of long distance transportation, saving the transportation cost; heating liquefied gas reclamatio

3、n of old material, reducing the pollution of the environment; small production, without the use of large mixing equipment, make up the limitation of time and a small amount of production of conventional heat type mixing equipment can not, reducing the mixture of cost, create a new way to mend pothol

4、es, is a new technology of economical and practical in the highway maintenance.坑槽修补问题提出Put forward two pothole repair problems1研究再生混合料在不同温度下的温度适应性、生产质量主稳定性等。特别是 在我省海西地区昼夜温差较大，对于沥青混合料的稳定性是一个比较突出的问 题。能够研究出一整套比较适合青藏高原特点的技术是个长期而又艰巨的问题。1 of recycled mixture, temperature adaptability under different tempe

5、rature production quality of the main stability. Especially in the area of our province larger temperature difference between day and night, for the stability of asphalt mixture is one of the more prominent issues. To study out a more suitable for the Qinghai-Tibet plateau characteristics of the tec

6、hnology is a long-term and arduous problem.2直接经济效益与社会效益评估。在就沥青再生利用过程中，我们不光要考虑 混合料自身所带来的直接经济效益，还要考虑社会效益，一旦大量的就沥青混合 料被废弃在沿线的草地和沙滩上，造成了环境污染和资源的浪费，破坏了我省原 本非常脆弱的生态环境，为此社会效益的评估具有很重要的意义。Evaluation of 2 direct economic benefit and social benefit. In the asphalt recycling process, we should not only consider

7、 the mixture of direct economic benefit itself brings, but also consider the social benefit, once a large number of asphalt mixture were abandoned along the grass and sand, causing environmental pollution and waste of resources, destruction of the already very fragile ecological environment in our p

8、rovince evaluation of social benefit, therefore has a very important significance.3解决由小面积和小范围的生产转为大面积的程序化生产，以取代常规热拌机 械设备不经济与不适用的问题，解决其重复倒运沥青和砂石材料等繁杂过程，为 解决小修挖补点多、线长、不易管理和操作等难题，提供了可行的措施。3 solution by the small area and small-scale production to process the production of large area, to replace the con

9、ventional hot mix machinery equipment is not economic and not suitable to solve the problem, an asphalt and gravel material repeat complicated process, in order to solve the repairing point, line, not easy to management and operation problems, provide feasible measures.4旧沥青路面再生料的主要技术指标试验。如马歇尔稳定度、油石比

10、、密实度 及其旧沥青路面的沥青含量、石料级配等指标试验。由于经过长时间的行车和日 晒雨淋，原有的沥青路面都有不同程度的老化，为此其各种技术指标不能够适应 再生要求，如何测定技术指标并在实际应用中加以推广是需要研究的重点。The main technical indexes of regeneration of old asphalt pavement material test 4. Such as the Marshall stability, asphalt-aggregate ratio, compactness and old asphalt pavement asphalt cont

11、ent, aggregate index test. After long time running and the sun and rain, the asphalt pavement original have different degrees of aging, therefore its various technical indicators can not adapt to the requirements of how to measure the regeneration, technical indicators and application promotion is t

12、he focus of the study required.用挖除的旧沥青进行坑槽修补Three with the excavation of the old asphalt repair pit1挖除旧路面面层：经测量、划线、切割、风镐凿松后，人工用铁锨将旧料堆 在一旁。注意测量划线要与公路轴线平行或垂直，切割不要破坏基层，如发现基 层损坏应进行补强处理。以往在坑槽修补时直接将修补料往坑槽一扔就万事大吉 了，这样修补的坑槽很不好看，而且质量不能保证，所以在现在修补坑槽时首先 必须要测量划线，做到规矩成方。The 1 excavation of the old pavement: after

13、 measuring, marking, cutting, pick cutting loose, artificial with a shovel will old material piled up at the side. Pay attention to measuring line and parallel or vertical road axis, cutting not todestroy the base, such as found in the damage to the grass-roots should be reinforcement treatment. In

14、the past, pothole repair directly repair material to pit throwing everything will be fine. The pothole repair, so it does not look good, and the quality can not be guaranteed, so now repair groove when the first must measure line, do the rules.2选择旧料：在挖清旧路面混合料的过程中，注意清除旧料中的泥土、杂物， 向拌合仓内装料时，块大的要捣碎，以块的直径

15、不大于10cm为宜。select the old material : in the process of digging Qing old pavement mixture, pay attention to clean dirt, debris old material in the mixing chamber, to charge, large block should be broken up, in order to block the diameter less than 10cm was suitable.3对旧沥青混合料取样进行油石比、级配、马歇尔稳定度等项试验，测定各项 技

16、术指标，确定沥青、级配料的添加量，并使之符合公路工程沥青及沥青混合 料的试验规程。of the old asphalt mixture sampling asphalt-aggregate ratio, gradation, Marshall stability test, determination of the technical indicators, to determine the amount of asphalt, gradation, and make the test code for highway engineering asphalt and asphalt mixtu

17、re with .4、加配沥青和矿料，按试验室测定的百分比，计算出每吨应加沥青和级配矿料 数量，经测试油石比、石料级配指标符合规范要求，不需要添加沥青和矿料。4, with the percentage of asphalt and aggregate, determined by the test room, per ton of number of asphalt and mineral aggregate gradation is calculated, by testing the asphalt-aggregate ratio, aggregate indicators meet t

18、he specification requirements, does not require the addition of asphalt and aggregate.5拌合、摊铺、碾压和初期养护。拌合过程中必须要严格按照试验数据确定的 掺加量进行掺配，不能少加也不能超量加配。摊铺时按照试验测定的松铺系数比 老路面稍微高出0.5-1.5CM，以保证压实后得平整度。5 mixing, paving, compaction and early maintenance. Must be determined strictly in accordance with the test data an

19、d the added amount of blending mixing process, can not add less nor excessive added. Paving according to test the coefficient of loose paving pavement is slightly higher than the old 0.5-1.5CM, in order to ensure the smoothness of a compaction.6按照施工程序分别记录施工中有关数据，以便总结经验，改进工作。具体操 作工艺流程为：测量一切割路面一风镐凿松一人

20、工清除一选样试验一秤重装料一 按比例添加料一拌合一卸料摊铺一整平碾压一质量检测。6 according to the construction procedure respectively record the relevant data in the construction, in order to sum up experience, improve the work. The specific operation process: measurement - cutting road - hammer chisel pine - manual removal - Sampling Te

21、st - weighing charging - according to the proportion of additive, mixing, paving and leveling roller unloading quality detection.四就沥青修补技术优缺点分析Analysis of the advantages and disadvantages of four asphalt repair technology1常规的修补路面坑槽的弊端disadvantages of conventional repair potholes.常规热拌设备不能生产小批量成品料，从加热沥

22、青到出现成品料至少要35 天，况且，成品料从拌合厂运到施工现场，增加拌合料二次倒运和重复加温的成 本。由于公路具有点多线长得特点，路面坑槽又呈现分散分布的特点，常规热拌 设备适宜工程量集中和工程量比较大的工程中进行。The conventional hot mix equipment can not produce small batch of finished product, from the heating asphalt to finished products should be at least 3 - 5 days, moreover, the finished material

23、 from the mixing plant to the construction site, increase the mixture two times bad and repeated heating costs. Because the road has at length features, pavement pit is dispersed distribution, conventional hot mix equipment suitable for engineering and engineering quantity is big project.乳化沥青能现场拌合，但

24、乳化沥青不随时供应而且造价高。The emulsified asphalt mixture can live, but emulsified asphalt not supply at any time and high cost.低温拌合沥青混合料加入20%的煤油等拌合而成的拌合料，装入袋内密封储 存，低温情况下挖补使用，其造价高。The mixture of cold mix asphalt mixture by adding 20% kerosene mixing and become, packed in bags sealed storage, low temperature com

25、bined use, its cost is high.2用旧沥青混和料再生技术的优点：old asphalt mixture has the advantages of material recycling technology:旧沥青再生新技术一年四季均可施工，方便快捷，在施工现场，随时破碎回收旧 料，随时加热还原成新的再生拌合料，随时修补坑槽，为保持干线公路常年无坑 槽，提供了切实可行的技术保障。同时由于对旧沥青混合料进行回收利用后减少 了环境污染，减少了资源浪费，起到变废为宝的功能。Old asphalt recycling technology throughout the year

26、 can construction, convenient and quick, at the construction site, always broken recycling old material, keep heating reduction into recycled mixes new repaired potholes, at any time, in order to keep the trunk highway perennial no pit, provide technical guarantee feasible. At the same time as the r

27、ecovery and reduce environmental pollution after use of old asphalt mixture, reduce the waste of resources, to turning waste into treasure function.在实际操作中我们与常规拌合料乳化沥青现场拌合料及低温拌合料相比，节约费 用50%，经济效益十分显著。特别是它所体现的社会效益特别巨大，对我们日 益恶化的生态环境是一大福音，对于缓解公路养护部门养护资金不足具有重要的 意义。In practice we and conventional mixture o

28、f emulsified asphalt mixture and low temperature field mixture compared to 50%, save cost, obvious economic benefit. In particular it reflected the social benefit is huge, on our ecological environment worsening is great news, for the mitigation of Highway Maintenance Department of insufficient main

29、tenance funding has important significance.五结束语Five conclusion旧沥青再生利用技术是一项利国利民的好项目，它的最大优点是能废物利用，旧 料再生，变废为宝，其它的挖补方法如使用常规设备拌合、低温拌合料、乳化沥 青现场拌合料等都不便利用旧料再生，只能弃之路边，增加了环境污染，影响了 路容美观。该技术采用的设备体积小，重量经，不需要动用大型设备，用一辆小 卡车或小拖车就能牵引，车上拌合作业，自带燃料，电脑控制，运转自如，拌合 均匀，对公路上出现的坑槽可随见随补，及时方便。旧沥青混合料再生可应就地 拌合，就地压实，高温季节拌合时料温可采取低限

30、值控制，比规范规定温度低 200C这宜，低温季节可采取高温控制，按低温环境下仍能施工作业，适合各种 气温条件。现场施工用丙烷气加热，不扬尘不冒烟雾，既提高了环保指数，又改 善了工人劳动环境，降低了劳动强度，是值得推广的好技术。Old asphalt recycling technology is an educational project, its biggest advantage is able to use waste, reclaim, turning waste into treasure, other methods such as patching using conventional equipment mixing, low temperature mixture, emulsified asphalt mixture are not convenient site with the old material recycling, roadside onl