The present article presents the construction and evaluation of an experimental stretch of highway with environmentally sustainable mixes; warm mixes asphalt and recycled warm mixes asphalt. Six trial sections of an urban highway were constructed with different structural characteristics. Each section was 15 cm thick and 90 m long. The asphalt mixes used for construction of the experimental sections were: reference hot mix asphalt (HMA), warm mix asphalt with natural zeolite (WAMz), warm mix asphalt with Evotherm (WMAe), recycled warm mix asphalt with 20% reclaimed asphalt pavement (RAP) and natural zeolite (WMA R20z), recycled warm mix asphalt with 20% RAP and Evotherm (WMA R20e), and recycled warm mix asphalt with 30% RAP and natural zeolite (WMA R30z). All the asphalt mixes were designed to comply with the design properties required by Chilean specifications, and were fabricated in an asphalt batch plant. The following performance properties were evaluated: stiffness modulus, water susceptibility, permanent deformation, cracking resistance and fatigue behaviour. The ageing of the asphalt binder in each of these asphalt mixes fabricated in the plant was also evaluated by physical and rheological assays of the binder extracted from the mixes. One month after construction of the trial sections, the structural capacity of each section of the experimental stretch was evaluated by falling weight deflectometer (FWD), and the pavement indicators of rutting and the International Roughness Index (IRI) were determined by laser profilometer. Finally, field cores were extracted and tested for stiffness modulus and cracking resistance. The results obtained indicate that the asphalt mixes used presented no major differences in the mechanical properties evaluated, nor in their structural capacity parameters and pavement indices, compared to the control HMA. These mixes present a suitable behaviour, similar to that of a conventional mix, in both their technical and constructive properties, while offering important environmental advantages.

本文介绍了具有环境可持续性混合料的高速公路试验段的建设和评估。温拌沥青和再生温拌沥青。修建了六个具有不同结构特征的城市高速公路试验段。每个部分厚15厘米，长90 m。用于实验部分施工的沥青混合料为：参考热混合沥青（HMA），天然沸石的热混合沥青（WAMz），Evotherm的热混合沥青（WMAe），回收率为20％的再生沥青路面的热混合沥青（ RAP）和天然沸石（WMA R20z），含20％RAP和Evotherm的再生温拌沥青（WMA R20e）和含30％RAP和天然沸石的再生温拌沥青（WMA R30z）。所有沥青混合料的设计均符合智利规范要求的设计性能，并在沥青配料厂中制造。评价了以下性能：刚度模量，水敏感性，永久变形，抗裂性和疲劳性能。还通过对从混合物中提取的粘合剂的物理和流变学分析来评估工厂中制造的每种沥青混合物中沥青粘合剂的老化。试验段建造一个月后，通过落锤偏折仪（FWD）评估实验拉伸段各段的结构承载力，并通过激光轮廓仪测定车辙的铺装指标和国际粗糙度指数（IRI）。最后，提取现场岩心并测试其刚度模量和抗裂性。所获得的结果表明，与对照HMA相比，所用沥青混合料在所评估的机械性能，结构容量参数和路面指数方面均无重大差异。这些混合物在技术和构造特性上均表现出与常规混合物相似的合适性能，同时具有重要的环境优势。