Recycled Mixture(回收混合物)研究综述
Recycled Mixture 回收混合物 - Cold-recycled mixture with asphalt emulsion (CMAE) has been widely used in pavement rehabilitation due to its environmental and economic advantages. [1] Nevertheless, adequate performance of recycled mixtures must be guaranteed despite the re-use of high amounts of RAP which involves the presence of aged, oxidized and stiffened binder. [2] This article is detected to the assessment of durable deformations of recycled mixtures made of foamed bitumen (MCAS) and emulsion (MCE). [3] In addition, the use of ASAs was highly effective to prevent the recycled mixtures from moisture damage. [4] This paper investigates the rejuvenator-aged asphalt diffusion and its influencing factors, including the rejuvenator's preheating temperature and curing process of recycled mixtures. [5] Hence, a balanced mixture design method which involves performance evaluation of recycled mixture is required. [6] In order to ensure the quality stability of recycled mixtures, the classification and management of RAP materials should be strengthened in the actual recycling design and application process. [7] However, very little is known about the bearing capacity of pavement structures with a cold-recycled base course despite the significantly increasing usage of cold-recycled mixtures. [8] A recycled mixture was produced in the laboratory by adding RAP both at room temperature (25°C) and after preheating (150°C) and subsequently tested according to the Superpave IDT at 10°C and 25°C. [9] Foamed asphalt cold-recycled mixtures have been increasingly used in China. [10] Then, in compliance with European standards, the mix design study of recycled mixtures was carried out, identifying the necessary granulometric integrations and the virgin-binder-appropriate percentages to be added. [11] As an attempt to that, we investigated the applicability of Confocal Raman Scattering Spectroscopy (Confocal Raman) combined with Principal Component Analysis (PCA), Linear Partial Least Squares Regression by Intervals (iPLS-R) and Competitive Adaptive Weighted Sampling (CARS/PLS-R) as fast chemometric tools to identify and classify pristine and recycled mixtures of HDPE and LDPE from municipal solid waste in Sao Paulo, Brazil. [12] The size-susceptibility of the agglomerate d particles, gradation deviation of the recycled mixture, and morphology classification of RAP particles are discussed. [13] Using a gradation curve (without RAP) as a reference, a hypothetical recycled asphalt mixture was created with different RAP percentages to investigate the impact of cluster dissociation on the aggregate properties of the recycled mixture. [14] Recently, there has been an increasing interest in the applications of recycled mixtures with a high reclaimed asphalt pavement (RAP) content. [15] The results indicated that the aging resistance of the recycled mixtures was highly affected by the rejuvenator type, and the mixtures containing organic rejuvenator were more susceptible to aging than those containing oil-based rejuvenators. [16] The indirect tensile strength at 40 ˚C of the recycled mixture was higher than that the control mixture. [17] Fatigue, resistance against rutting, creep stiffness, relaxation modulus, and low temperature fracture energy and fracture toughness were computed and evaluated on the entire set of the virgin, recycled and re-recycled mixtures. [18] The effects of these rejuvenators on asphalt mixtures containing 50% of reclaimed asphalt pavement specimens was evaluated using dynamic creep, resilient modulus, low temperature fracture energy and moisture susceptibility tests and the results was compared to recycled mixtures without rejuvenator and control HMA mixtures. [19] Additionally, the RAP incorporation methods, as well as the addition of a rejuvenator and/or a softer bitumen to obtain the intended viscosity in the binder blend can also affect the final behaviour of the recycled mixture. [20] The paper investigates the influence of redispersible polymer powder (RPP) on the physical and mechanical properties of a cold-recycled mixture with foamed bitumen (CRM-FB). [21] The micromechanical work is based on the generalised self-consistent scheme (GSCS) which was used to predict the mechanical properties of the recycled mixture. [22] Meanwhile, the performance-based test methods of recycled mixtures, i. [23] The incorporation of rejuvenator in recycled asphalt mixtures can decrease the dynamic stability of recycled mixtures, and the maximum bending strain of recycled asphalt mixtures can be increased due to the rheological recovery of the aged binder in the RAP. [24] 5% were utilized to prepare a recycled mixture. [25] First, a single virgin mixture was prepared and artificially aged to simulate the first generation of RAP to be used for designing the first generation of recycled mixtures. [26]沥青乳液冷再生混合料(CMAE)由于其环境和经济优势而被广泛应用于路面修复。 [1] 然而,尽管重复使用大量 RAP,其中涉及老化、氧化和硬化的粘合剂,但必须保证回收混合物的足够性能。 [2] 本文用于评估由泡沫沥青 (MCAS) 和乳液 (MCE) 制成的回收混合物的持久变形。 [3] 此外,使用 ASA 可以非常有效地防止回收的混合物受潮损坏。 [4] 本文研究了再生剂老化沥青的扩散及其影响因素,包括再生剂的预热温度和再生混合料的固化过程。 [5] 因此,需要一种平衡混合物设计方法,其中涉及对回收混合物的性能评估。 [6] 为保证回收混合物的质量稳定性,在实际回收设计和应用过程中,应加强RAP材料的分类和管理。 [7] 然而,尽管冷再生混合物的使用显着增加,但对具有冷再生基层的路面结构的承载能力知之甚少。 [8] 在实验室中通过在室温 (25°C) 和预热后 (150°C) 添加 RAP 生产回收混合物,随后根据 Superpave IDT 在 10°C 和 25°C 下进行测试。 [9] 泡沫沥青冷再生混合料在中国得到越来越多的应用。 [10] 然后,按照欧洲标准,对回收混合物进行了混合设计研究,确定了必要的粒度整合和要添加的适合原始粘合剂的百分比。 [11] 作为尝试,我们研究了共焦拉曼散射光谱(共焦拉曼)结合主成分分析(PCA)、区间线性偏最小二乘回归(iPLS-R)和竞争性自适应加权采样(CARS/PLS- R) 作为快速化学计量工具,用于从巴西圣保罗的城市固体废物中识别和分类 HDPE 和 LDPE 的原始和回收混合物。 [12] 讨论了团聚 d 颗粒的尺寸敏感性、回收混合物的级配偏差以及 RAP 颗粒的形态分类。 [13] 使用级配曲线(无 RAP)作为参考,创建具有不同 RAP 百分比的假设再生沥青混合料,以研究簇解离对再生混合物骨料性能的影响。 [14] 最近,人们越来越关注具有高再生沥青路面 (RAP) 含量的再生混合物的应用。 [15] 结果表明,再生混合物的抗老化性受再生剂类型的影响很大,含有有机再生剂的混合物比含有油基再生剂的混合物更容易老化。 [16] 回收混合物在 40°C 的间接拉伸强度高于对照混合物。 [17] 疲劳、抗车辙性能、蠕变刚度、松弛模量、低温断裂能和断裂韧性在整套原始、回收和再回收混合物上进行计算和评估。 [18] 使用动态蠕变、弹性模量、低温断裂能和湿气敏感性试验评估了这些再生剂对含有 50% 再生沥青路面试样的沥青混合物的影响,并将结果与不含再生剂的再生混合物和对照 HMA 混合物进行了比较。 [19] 此外,RAP 掺入方法以及添加再生剂和/或较软的沥青以获得粘合剂混合物中的预期粘度也会影响回收混合物的最终行为。 [20] 本文研究了可再分散聚合物粉末 (RPP) 对泡沫沥青冷回收混合物 (CRM-FB) 物理和机械性能的影响。 [21] 微机械工作基于广义自洽方案 (GSCS),该方案用于预测回收混合物的机械性能。 [22] 同时,回收混合物的基于性能的测试方法,i。 [23] 在再生沥青混合料中掺入再生剂会降低再生混合料的动态稳定性,而再生沥青混合料的最大弯曲应变会因再生胶中老化粘合剂的流变恢复而增加。 [24] 5% 用于制备循环混合物。 [25] 首先,制备单一原始混合物并进行人工老化,以模拟第一代 RAP,用于设计第一代回收混合物。 [26]
emulsified asphalt cold
In this study, the effects of virgin aggregate content, such as mineral filler, machine-made sand, and coarse aggregate, on the performance of emulsified asphalt cold recycled mixtures (ECRMs) prod. [1] The strength of EACRM (emulsified asphalt cold recycled mixture) is closely related to the properties and proportion of raw materials. [2] In order to study the application of gyratory compaction molding method in emulsified asphalt cold recycled mixture and optimize the relevant technical parameters, the study was carried out according to splitting strength, stability and water stability test; the design of the experiment involved changing gyration number, emulsified asphalt and water content, molded specimen temperature and other factors to analyze the volume parameters, mechanical properties and water stability. [3]在这项研究中,原始骨料含量(如矿物填料、机制砂和粗骨料)对乳化沥青冷再生混合物 (ECRM) 产品性能的影响。 [1] EACRM(乳化沥青冷再生混合料)的强度与原料的性质和比例密切相关。 [2] nan [3]
Cold Recycled Mixture 冷再生混合物
A traditional cold recycled mixture with bitumen emulsion (CRMB) has a relatively low cracking resistance and moisture susceptibility, which greatly limits its application scope. [1] In order to study the mechanical properties and effect of a regenerant on a cold recycled mixture with asphalt emulsions (CRMEs), the moisture susceptibility, high-temperature performance, low-temperature performance, dynamic mechanical properties and durability of CRMEs were analyzed and evaluated by immersion splitting strength tests, freeze-thaw splitting strength tests, rutting tests, semi-circle bending tests, uniaxial compression dynamic modulus tests and indirect tensile tests. [2] Particular attention was paid to the choice of criteria for the manufacture of specimens of cold recycled mixtures, which, according to world practice of road construction, shall be subjected to the rheological properties testing. [3] Cold recycled mixture (CRM) has been widely used around the world mainly because of its good ability to resist reflection cracking. [4] Based on that the Faculty of Civil Engineering, CTU Prague is for more than 10 years evaluating and developing further alternatives for the cement-based approach of cold recycled mixtures. [5] Cold recycled mixtures are commonly used for base courses in construction or rehabilitation of flexible and semi-rigid pavements. [6] The objective of this study is to investigate the compaction characteristics of cold recycled mixtures with asphalt emulsion (CRME) using the Superpave gyratory compactor (SGC) method. [7] With the increasing usage of cold recycling techniques on maintenance of flexible pavements, increases also the need to better characterise the properties of cold recycled mixtures, usually composed of aggregates, reclaimed asphalt – RAP, active filler and bitumen. [8] Multiple researches on the performance of cold recycled mixtures have been done; however, it is unclear how the entire pavement structure (cold recycled asphalt pavement overlaid with asphalt mixture) performs depending on binding agents. [9] The deformation of the cold recycled mixture with foamed bitumen in a recycled base with an innovative three-component road binder and foamed bitumen is analysed. [10] In particular, indirect tensile strength and stiffness as well as moisture susceptibility of cold recycled mixtures prepared with bituminous emulsion or foamed bitumen are discussed, taking also into account different curing conditions. [11] To enhance the selection of material content for a cold recycled mixture of emulsified asphalt in hot and rainy areas, the effect of emulsified asphalt content, cement content and Reclaimed Asphalt Pavement (RAP) content on high temperature properties, moisture stability and the fatigue properties of cold recycled mixture were investigated. [12] This paper investigates the influence of cement on the strength and microcosmic properties of cold recycled mixtures using foamed asphalt (CRMF). [13] The influence of different gradations on the final and long-term performance of cold recycled mixture with asphalt emulsion (CRME) was investigated. [14] In this study, the effects of virgin aggregate content, such as mineral filler, machine-made sand, and coarse aggregate, on the performance of emulsified asphalt cold recycled mixtures (ECRMs) prod. [15] Cold Recycled Mixtures (CRM) are composed of high amounts of Reclaimed Asphalt Pavement (RAP) together with bitumen emulsion. [16] The strength of EACRM (emulsified asphalt cold recycled mixture) is closely related to the properties and proportion of raw materials. [17] Cement can influence the performance of cold recycled mixture of emulsified asphalt (CRMEA) significantly. [18] This study demonstrates the time (loading frequency), temperature and stress dependent behavior of the cold recycled mixtures treated with foamed bitumen. [19] In the case of emulsified cold recycled mixtures (ECRMs). [20] In particular, this aspect gains more importance in the framework of cold recycled mixtures (CRM). [21] Cold recycled mixtures (CRM) treated with bitumen emulsion are innovative materials in road pavement construction industry which gained visibility in the last decades. [22] Cold recycled mixtures contain – beside the recycled asphalt pavement and aggregate – two different types of binding agents: bituminous emulsion and Portland cement. [23] However, there is no agreement under the mechanical properties of cold recycled mixtures, mainly about the viscoelastic behavior. [24] Based on an analysis of the cold regeneration mechanism of emulsified asphalt, the emulsified asphalt binders and cement were applied to prepare the cold recycled mixtures, and the main technical performances of the designed mixtures were evaluated, including high-temperature stability, water stability, and fatigue characteristics. [25] At present there is no consensus on the most suitable methodology for the design of cold recycled mixtures with emulsion, due to its complexity. [26] This work investigated the long-term performance and microstructure of asphalt emulsion cold recycled mixture (CRME) with different gradations. [27] Thus, the rheological behavior of cold recycled mixtures is different from that of conventional hot mixtures because it is due to the interaction of fresh bitumen, aged bitumen and cementitious bonds. [28] In order to study the application of gyratory compaction molding method in emulsified asphalt cold recycled mixture and optimize the relevant technical parameters, the study was carried out according to splitting strength, stability and water stability test; the design of the experiment involved changing gyration number, emulsified asphalt and water content, molded specimen temperature and other factors to analyze the volume parameters, mechanical properties and water stability. [29]传统的乳化沥青冷再生混合料(CRMB)的抗裂性和吸湿性相对较低,极大地限制了其应用范围。 [1] 为了研究再生剂对冷再生沥青乳液(CRMEs)的力学性能和影响,对CRMEs的湿敏性、高温性能、低温性能、动态力学性能和耐久性进行了分析和评价:浸入劈裂强度试验、冻融劈裂强度试验、车辙试验、半圆弯曲试验、单轴压缩动态模量试验和间接拉伸试验。 [2] 特别注意冷再生混合物样品制造标准的选择,根据世界道路建设实践,应进行流变性能测试。 [3] 冷再生混合料(CRM)因其良好的抗反射开裂能力而在世界范围内得到广泛应用。 [4] 在此基础上,布拉格 CTU 的土木工程学院在 10 多年的时间里一直在评估和开发基于水泥的冷再生混合物方法的进一步替代方案。 [5] 冷再生混合物通常用于柔性和半刚性路面的建设或修复的基层。 [6] 本研究的目的是使用 Superpave 回转压实机 (SGC) 方法研究带有沥青乳液 (CRME) 的冷再生混合物的压实特性。 [7] 随着冷再生技术在柔性路面维护中的使用越来越多,也需要更好地表征冷再生混合物的特性,通常由骨料、再生沥青 - RAP、活性填料和沥青组成。 [8] 对冷再生混合物的性能进行了多项研究;然而,目前尚不清楚整个路面结构(用沥青混合料覆盖的冷再生沥青路面)如何根据粘合剂发挥作用。 [9] 分析了在具有创新的三组分道路粘合剂和泡沫沥青的再生基层中含泡沫沥青的冷再生混合物的变形。 [10] 特别是,讨论了用沥青乳液或泡沫沥青制备的冷回收混合物的间接拉伸强度和刚度以及湿气敏感性,同时还考虑了不同的固化条件。 [11] 为加强热雨地区冷再生乳化沥青混合料的材料选择,研究了乳化沥青含量、水泥含量和再生沥青路面(RAP)含量对高温性能、水分稳定性和疲劳性能的影响。冷循环混合物进行了研究。 [12] nan [13] nan [14] 在这项研究中,原始骨料含量(如矿物填料、机制砂和粗骨料)对乳化沥青冷再生混合物 (ECRM) 产品性能的影响。 [15] nan [16] EACRM(乳化沥青冷再生混合料)的强度与原料的性质和比例密切相关。 [17] nan [18] nan [19] nan [20] nan [21] nan [22] nan [23] nan [24] nan [25] nan [26] nan [27] nan [28] nan [29]
recycled mixture containing 含有回收混合物
There is a need to add rejuvenators to the recycled mixture containing RAP to enhance its performance, excepting the rutting resistance. [1] This paper presents an experimental investigation on the performance of cement stabilized recycled mixture containing recycled concrete aggregate (RCA) and crushed brick (RCB), which are separated from recycled aggregate. [2]除了抗车辙性能外,需要在含有 RAP 的回收混合物中添加再生剂以增强其性能。 [1] 本文对含有再生混凝土骨料 (RCA) 和碎砖 (RCB) 的水泥稳定再生混合物的性能进行了实验研究,这些混合物与再生骨料分离。 [2]