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沥青混凝土路面现场热再生
来源：/ 日期：2023-08-10
就地热再生：这种再生法就是利用沥青路面热再生联合机组来就地完成沥青路面的热再生修复。原有路面材料100％地利用，不需要搬运废料及废弃物堆放场地，可减少环境污染；能够改变个别 的混合料成分，以便给定沥青 混合料的配比；可以快速就地再生，并随着工程进度开放道路交通，对交通干扰小，现在国外应用很广。
On site geothermal regeneration: This regeneration method utilizes a combined unit of asphalt pavement thermal regeneration to complete on-site thermal regeneration and repair of asphalt pavement. The original road materials are 100% utilized, and there is no need to handle waste materials or waste storage sites, which can reduce environmental pollution; Being able to change individual mixture components in order to give the optimal ratio of asphalt mixtures; It can quickly regenerate on site and open up road traffic as the project progresses, with minimal traffic interference. It is now widely used abroad.
沥青路面的现场热再生就是原有沥青路面再生100％在现场完成，先加热软化原沥青路面以便于耙松，然后将耙松的沥青路面充分拌和，随后进行摊铺碾压。
The on-site thermal regeneration of asphalt pavement refers to the 100% completion of the original asphalt pavement regeneration on site. The original asphalt pavement is first heated and softened to facilitate loosening, and then the loosened asphalt pavement is fully mixed, followed by paving and rolling.
沥青路面的老化主要是其沥青中轻质组分减少，石料的少量损失，沥青路面就地热再生通过添加再生剂调节旧沥青路面中老化沥青的化学组分，来恢复老化沥青的性能，同时补充少量新拌沥青混合料来调整原有沥青混合料级配，以达到沥青路面再生效果。
The aging of asphalt pavement is mainly due to the reduction of lightweight components in its asphalt and a small amount of loss of stone materials. The thermal regeneration of asphalt pavement is achieved by adding regenerants to adjust the chemical components of aging asphalt in the old asphalt pavement, in order to restore the performance of aging asphalt. At the same time, a small amount of fresh asphalt mixture is added to adjust the grading of the original asphalt mixture, in order to achieve the effect of asphalt pavement regeneration.
新沥青混合料和再生剂按需要比例加入。通常新沥青混合料控制在再生混合料质量的30％以内。各种材料的添加率根据原沥青路面性能分析及其实验室配合比设计，并符合相应的混合料规范而确定。
Add new asphalt mixture and recycling agent in proportion as needed. Usually, new asphalt mixtures are controlled within 30% of the quality of recycled mixtures. The addition rate of various materials is determined based on the performance analysis of the original asphalt pavement and its laboratory mix design, and in accordance with the corresponding mixture specifications.
依据所使用的工艺可将现场热再生细分为三种，即耙松整形再生、重铺再生和复拌再生。
According to the process used, on-site thermal regeneration can be divided into three types, namely raking and shaping regeneration, re laying regeneration, and re mixing regeneration.
耙松整形再生：先用加热设备把沥青路面烤热软化，然后用设备本身自带的耙松装置将路面耙松整形，同时添加再生剂，然后用压路机碾实 。
Raking and shaping regeneration: First, use heating equipment to heat and soften the asphalt pavement, and then use the equipment's own loosening device to loosen and shape the pavement. At the same time, add regeneration agent, and then use a roller to compact it.
重铺再生：先用加热设备把沥青路面烤热软化，接着铣刨旧沥青层，不同的是将铣刨下来的沥青料直接进行摊铺，紧接着在其上面再摊铺一层新的沥青混合料，然后用压路机碾实。
Re paving and regeneration: First, use heating equipment to heat and soften the asphalt pavement, then mill the old asphalt layer. The difference is that the milled asphalt material is directly spread, and then a new layer of asphalt mixture is laid on top of it, and then compacted with a roller.
、复拌再生：先用加热设备把沥青路面烤热软化，再用铣刨机铣刨旧沥青层，然后按一定比例添加再生剂再添加用来调整集配的新料，搅拌后将混合料收集排放到摊铺机上进行摊铺，用压路机碾实。
Re mixing and regeneration: First, use heating equipment to heat and soften the asphalt pavement, then use a milling machine to mill the old asphalt layer, and then add a certain proportion of regeneration agent before adding new materials for adjusting the mixing. After mixing, collect and discharge the mixture onto the paver for paving, and finally use a roller to compact it.
★现场热再生的优点：
Advantages of on-site thermal regeneration:
通过再生现有材料就地修复路面；
Repair the road surface in situ by recycling existing materials;
一次性完成再生加铺；
Complete regeneration and paving in one go;
快速、经济、性强、节约原材料；
Fast, economical, environmentally friendly, and material saving;
成本低：对工期、运输费用、能源和原材料综合成本降低20～50％；
Low cost: reduces the overall cost of construction period, transportation costs, energy, and raw materials by 20-50%;
施工时间短，开放交通快，对公共交通的影响很小；
Short construction time, fast open traffic, and minimal impact on public transportation;
可完成再生加铺、重铺、重新整型等施工；
Capable of completing construction such as regeneration, resurfacing, and reshaping;
了传统方法固有的处理问题。
Eliminates the inherent processing issues of traditional methods.
接缝及层间均热粘结。
Joint and interlayer thermal bonding.
极大减少了旧材料、新材料的运输量；
Greatly reducing the transportation volume of old and new materials;
再生现有的路面材料，就地修复路面；
Regenerate existing road materials and repair the road surface on site;
★现场热再生的缺点：
Disadvantages of on-site thermal regeneration:
再生深度通常为 6cm；
The maximum regeneration depth is usually 6cm;
无法除去已经不合适进行再生的旧混合料，级配调整幅度有限；
Unable to remove old mixtures that are no longer suitable for regeneration, and the adjustment of gradation is limited;
无法软弱路基和基层的问题。
Unable to solve the problem of weak roadbed and base layer.
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This article is dedicated by Jinan Asphalt Materials. For more information, please click on: Sincere attitude. We will provide you with comprehensive services. We will gradually contribute more relevant knowledge to everyone. Stay tuned
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