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High Viscosity Modified Asphalt
High-viscosity modified asphalt mixtures for double-layer
This study aims to formulating two types of high-viscosity modified porous asphalt mixtures (PAC-10 and PAC-16) for the double-layer porous asphalt High-viscosity modified asphalt Environmental aging resistance Fatigue resistance 1. Introduction In the context of ecological civilization, the cities no longer A sustainable high-viscosity modified asphalt modified with
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Aging effects on rheological properties of high viscosity modified
Abstract This work investigated the aging effects on the rheological properties of high viscosity modified asphalt (HVMA). First, the high- and low High-viscosity modified asphalt (T-HVA) specifically used for drainage/permeable asphalt pavement was prepared by composite modification of Study on cohesion and adhesion of high-viscosity
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Preparation, Performance, and modification mechanism
A type of high viscosity modified asphalt (HVMA) with excellent performance was prepared by mixing a certain amount of SBS modifier, tackifying resin, 3 行Studies have shown that high-viscosity modified asphalt can effectively reduce the deformation andPreparation and Properties of High-Viscosity Modified Asphalt
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Preparation and properties of high viscosity modified
High viscosity modified (HVM) asphalt was prepared by the addition of styrene–butadiene–styrene (SBS), plasticizer, crosslinker. The effect and proportion of each modifier in the preparation of HVM Compared with the base asphalt, the high viscosity modifier (HVM) in HVA plays an important role in the HVA-aggregate interface action. Studies about the interfacial state Interface interaction between high viscosity asphalt and
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Study on Compatibility and Rheological Properties
High-viscosity modified asphalt is mainly used as a binder for porous asphalt in China and Japan. In order to meet the demand for using porous asphalt under high temperature condition in Africa, Zhang [12] prepared high viscosity modified asphalt by adding 6% SBS, 4% furfural essential oil, and 0.2% sulfur to the base asphalt (BA), and the overall performance of the asphalt was improved. However, the overall performance of domestic high viscosity modified asphal is still far behind that of TPS modifiers.Preparation, Performance, and modification mechanism of high viscosity
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Coatings Free Full-Text Properties of SBS/MCF
In order to produce high-viscosity and high-toughness asphalt for ultra-thin overlays, the conventional asphalt cement was modified with high-content SBS and micro carbon fiber (MCF). The In order to produce a high-viscosity asphalt and mixtures that can be used for ultra-thin overlays, high contents of Styrene–butadiene–styrene (SBS, 5%, 6%, 7%), styrene butadiene rubber (SBR, 1%, 2%, 3%) and micro carbon fiber (MCF, 0.8%) were used to modify conventional asphalt to prepare high-viscosity modified asphalt The Properties of Micro Carbon Fiber Composite Modified High-Viscosity
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Aging effects on rheological properties of high viscosity modified asphalt
Hi gh viscosity modified asphalt (HVMA) is described by the concept of a type of asphalt whose dynamic viscosity exceeds 20,000 Pa s (Chen et al., 2019). The scientific excitement about HVMAStyrene-butadiene-styrene (SBS) is currently the most widely used asphalt modifier. However, high-SBS-concentration high-viscosity modified asphalts (HVMA) are characterized by poor flow and storage instability. To make up for the lack of performance of traditional SBS-HVMA, a nano-based high-viscosity composite Sustainability Free Full-Text Investigating the Rheological
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Properties and mechanism of SBS/crumb rubber composite high viscosity
Compared with SBS modified asphalt, SBS/CR modified asphalt has excellent high and low-temperature properties, mechanical properties, rheological properties, fatigue resistance, and aging resistance. In this paper, the composite modification of SBS and crumb rubber was selected to prepare high viscosity modified The base asphalt binder (PG64-22) as well as crumb rubber (CR)-modified asphalt were selected to prepare high-viscosity asphalt binder in this study. The CR-modified binder was fabricated by adding 20% crumb rubber into the base binder, in which the rubber particles were fully dissolved and swelled with the special production High-viscosity modified asphalt mixtures for double-layer
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Simplified viscosity evaluating method of high viscosity asphalt
High viscosity asphalt binders (HVABs) were developed by Japanese companies to improve rutting resistance and durability of porous asphalt [].HVABs are compound modified asphalt binders, which are mainly modified by styrene–butadiene–styrene (SBS), mineral oil and petroleum resin [].SBS is the main Then the rheological property and chemical composition of high viscosity–modified asphalt (HVMA) after weathering-aging and standard PAV aging were investigated by dynamic shear rheometer (DSR), multiple stress creep recovery (MSCR), Fourier transform infrared spectroscopy (FTIR), and gel permeation chromatography Quantifying Weathering-Aging Test Parameters of High Viscosity
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Composition and Evaluation on Road Performance of SBS/PTW High
2.2. Preparation of SBS/PTW High-Viscosity Modified Asphalt. The preparation process of SBS/PTW high-viscosity modified asphalt is shown in Figure 1 and involves the following steps: (1) the solubilizer and polymer SBS were added to the AH-70 matrix asphalt, and the mixture was stirred at a speed of 500 r/min for 20 minutes at High-viscosity modified asphalt is mainly used as a binder for porous asphalt in China and Japan. In order to meet the demand for using porous asphalt under high temperature condition in Africa, Study on Compatibility and Rheological Properties of
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Exploration for Cohesion and Adhesion Characteristics of High Viscosity
@article{Yang2022ExplorationFC, title={Exploration for Cohesion and Adhesion Characteristics of High Viscosity–Modified Asphalt: Impacts of Composition-Associated Factors and Thermal Aging}, author={Jianhua Yang and Zhengqi Zhang and Ying Fang and Jierong Shi and Xinhong Yang}, journal={Journal of Materials in Civil In Asian countries, high-viscosity modified asphalt (HVMA) is commonly used as the binder of porous asphalt pavement. Compared with common polymer-modified asphalt, it provides better rut-resistant and aging-resistant properties, and is regarded as an excellent binder for the construction of extended-life porous asphalt pavement .Laboratory Investigation of the Adhesion and Self-Healing
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The effect of PPA on performances and structures of high-viscosity
High-viscosity modified (HVM) asphalt as the binder of draining asphalt pavement is being paid more attention. Owing to the perfect high-temperature performance, adhesion, deformation resistance, HVM asphalt also can be used widely in other pavement constructions such as bridge deck pavement, reconstruction of old cement road and so Some researchers prepared high-viscosity modified asphalt and investigated the optimum dosage of modifiers through a series of tests such as penetration test, softening point test, toughness test, tenacity test, 60°C dynamic viscosity test, 135°C rotational viscosity, elastic recovery test, and dynamic shear rheometry (DSR) test [25, 26].Preparation and Performance Analysis of High-Viscosity and
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Composition and Evaluation on Road Performance of SBS/PTW High
SBS/PTW high-viscosity modified asphalt under dynamic shear rheology (DSR) test is classified as PG88 at high temperature. The rutting factor changes the smallest before and after aging,High-viscosity modified asphalt (HVMA) is commonly used as a binder to ensure the adequate road performance of porous pavement materials [31]. HVMA is a modified asphalt with a dynamic viscosity greater than 20,000 Pa⋅s at 60 °C, and comprises thermoplastic rubber, adhesive resin, plasticizer, and neat asphalt [32].Fractional derivative viscoelastic response of high-viscosity modified
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Effects of Hydrated Lime on High-Temperature Rheological
High-viscosity modified asphalt (HVA) is widely used as the binder for permeable asphalt pavement, and hydrated lime (HL) attracts a strong technical interest as an effective moisture additive in asphalt for a long time. However, the application of HL in HVA has been rarely studied. The present study evaluates the influence of HL on the 1. Introduction. High viscosity modified asphalt (HVMA) was the core material to build ecological permeable pavement, such as the open-graded friction course (OGFC) and porous ultra-thin wearing course (Hu et al., 2021a; Hu et al., 2021b; Zhang et al., 2021).In recent years, with the gradual improvement of pavement drainage Oxidation and polymer degradation characteristics of high viscosity
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