Preparation and properties of asphalt binders modified by

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Preparation and properties of asphalt binders modified by ...

The modified asphalt binders, which blended with SK-90 (control asphalt binder) and 4%, 6%, 8% and 10% THFS (by weight of SK-90), were fabricated. The preparation process for asphalt binder was optimized in terms of the orthogonal array test strategy and gray correlation analysis results.

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"Preparation and properties of asphalt binders modified by ...

This paper aims to study the preparation and viscoelastic properties of asphalt binder modified by tetrahydrofuran soluble fraction (THFS) extracted from direct coal liquefaction residue. The modified asphalt binders, which blended with SK-90 (control asphalt binder) and 4%, 6%, 8% and 10% THFS (by weight of SK-90), were fabricated. The preparation process for asphalt binder was optimized in ...

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Preparation and Properties of Asphalt Binders Modified by ...

Nov 10, 2017  This paper aims to study the preparation and viscoelastic properties of asphalt binder modified by tetrahydrofuran soluble fraction (THFS) extracted from direct coal liquefaction residue.

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Preparation and properties of conventional asphalt ...

Jan 01, 2013  Based on the XRD results, it was found that Na-MMT-modified asphalt may form an intercalated structure, whereas the OMMT-modified asphalt may form an exfoliated structure. You et al. investigated the influence of larger amounts of nanoclays as modifiers on the mechanical properties of asphalt binders. Nanoclays, at 2% and 4% by weight, were ...

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Preparation and Properties of Bitumen-Modified ...

Aug 08, 2019  Furthermore, varying amounts of PUSSPCM modifiers were added to a neat asphalt binder. The viscosity of all the modified bitumen samples was lower than 2,000 cP. The addition of the PUSSPCMs did not greatly affect the penetration, softening point, and storage stability of modified asphalt.

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Preparation and Properties of Waterborne Epoxy–Modified ...

The water-foamed asphalt binders were prepared at different foaming temperatures, i.e., 120°C and 135°C, and the amount of water agent used in this process was 0.0%-2.0% by mass of asphalt binder.

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Preparation and performance evaluation of swine manure bio ...

Aug 02, 2021  In order to study the effect of the preparation process of swine manure bio-oil modified rubber asphalt binder on the rheological properties of the binder, the matrix asphalt and asphalt rubber were used as the control group, and swine manure bio-oil modified rubber asphalt binders were obtained by three preparation processes.

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"Preparation and properties of asphalt binders modified by ...

This paper aims to study the preparation and viscoelastic properties of asphalt binder modified by tetrahydrofuran soluble fraction (THFS) extracted from direct coal liquefaction residue. The modified asphalt binders, which blended with SK-90 (control asphalt binder) and 4%, 6%, 8% and 10% THFS (by weight of SK-90), were fabricated. The preparation process for asphalt binder was optimized in ...

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Preparation and properties of modified asphalt using ...

The use of Closite 15A and a triblock copolymer branch type (BP) as asphalt modifiers was studied. Modified asphalt binder was prepared by adding nanocomposites (NCs) of styrene–butadiene–styrene copolymer (BP) and Cloisite 15 A (NCMM). The NCs were obtained by means of a melt mixing technique. The morphology of the modified asphalt blends was observed via fluorescence microscopy, which ...

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Preparation and Properties of Bitumen-Modified ...

Aug 08, 2019  Furthermore, varying amounts of PUSSPCM modifiers were added to a neat asphalt binder. The viscosity of all the modified bitumen samples was lower than 2,000 cP. The addition of the PUSSPCMs did not greatly affect the penetration, softening point, and storage stability of modified asphalt.

Get price

Preparation and Properties of Waterborne Epoxy–Modified ...

The water-foamed asphalt binders were prepared at different foaming temperatures, i.e., 120°C and 135°C, and the amount of water agent used in this process was 0.0%-2.0% by mass of asphalt binder.

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Preparation and Properties of Nanoclay/TPS/Asphalt Ternary ...

The ternary modified asphalt binder containing 4% OMMT and 12% TPS by weight were prepared at the laboratory scale using high speed shearing mixer. The rheological properties of OMMT/TPS modified asphalt binders were evaluated before and after aging in present paper.

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Evaluation of the Performance of Asphalt Binder Modified ...

It was found that the addition of CaCO 3 and Al2O 3 content has a significant effect on the physical properties of the asphalt, as the penetration reduced up to 50% for modified asphalt with CaCO 3 and 64% for modified asphalt with Al 2 O 3. The softening point of modified asphalt binders was increased up to 11 and 12% for both modifiers ...

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Preparation and Properties of Waterborne Epoxy–Modified ...

Nov 15, 2018  The test results indicated that the high- and low-temperature properties of WEMEAB were noticeably improved and that the waterborne epoxy was distributed uniformly in the modified emulsified asphalt binder with an asphalt-water ratio of 65:35, 4 % waterborne epoxy and 1.4 % emulsifier. The FOM and AFM images showed that cross-linking and ...

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Preparation and Performance Analysis of High-Viscosity and ...

This study presented the preparation and performance of a kind of high viscosity and elastic recovery asphalt (HVERA) by using some modifiers. The performance of styrene-butadiene-styrene (SBS), rock asphalt (RA), crumb rubber (CR), and stabilizing agent (SA) for different modifiers was investigated by conventional binder test. Effects of modifiers on the high- and low-temperature properties ...

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Aging properties and mechanism of the modified asphalt by ...

May 25, 2012  For the consideration of the environmental and economic issues, retrieved packaging waste polyethylene and waste rubber powder were selected as modifiers to modify the ordinary oil asphalt, and the...

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Microstructures, thermal and mechanical properties of ...

Jun 21, 2018  In 1967, epoxy modified asphalt binder, namely epoxy asphalt binder (EAB) was paved on the riding surface of the United States’ first major orthotropic steel bridge (San Mateo/Hayward Bridge) deck . Since then, EAB has been worldwidely used in the pavement of orthotropic steel bridge decks, especially in United States and China [15,16,17].

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Relationships Between the Fatigue Properties of Asphalt ...

These included a PG 70-22, an air blown asphalt, a crumb-rubber modified binder, and two polymer-modified binders (Gibson et al., 2012). Properties of these binders are summarized in Table 5. As with the SHRP core asphalts, these were tested after RTFOT aging, to

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Investigation on Preparation and Properties of Crack ...

Crack is the main distress of asphalt pavement. Sealant is one of the most commonly used crack repair materials, and its performance is the key to affect the service life of asphalt pavements. In order to find an efficient modifier and optimize the performances of crack sealants. In this paper, carbon nanotubes (CNTs) and styrene-butadiene-styrene (SBS) were used as modifiers to prepare CNTs ...

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Lignin-based materials with UV-blocking property

To investigate the adhesion properties of lignin-based polyurethane modified asphalt binder (LPUA) during UV aging process, LPUA was prepared by high-temperature blending of lignin, toluene ...

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Review on the self-healing of asphalt materials: Mechanism ...

Oct 02, 2020  Preparation of microcapsule and its influence on self-healing property of asphalt ... Aided regeneration system of aged asphalt binder based on microcapsule technology ... Aging Mechanism and Properties of SBS Modified Bitumen under Complex Environmental Conditions

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Preparation and properties of modified asphalt using ...

The use of Closite 15A and a triblock copolymer branch type (BP) as asphalt modifiers was studied. Modified asphalt binder was prepared by adding nanocomposites (NCs) of styrene–butadiene–styrene copolymer (BP) and Cloisite 15 A (NCMM). The NCs were obtained by means of a melt mixing technique. The morphology of the modified asphalt blends was observed via fluorescence microscopy, which ...

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Rheological Properties of Asphalt Binders Modified With ...

AND UCUÚBA FAT IN THE MODIFIED ASPHALT BINDER AC 50/70. In the preparation of the mixtures the binder was heated to facilitate the addition of the modifiers, and then it was transferred to the mixer. The materials previously homogenized were subjected to an angular velocity of 560 rpm for 2 hours at a temperature of 160 5 oC.

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Preparation and Properties of Carbon Nanofiber Modified ...

Aug 11, 2020  Carbon nanofiber (CNF) is a nanomaterial with unique mechanical properties, which can improve the properties of composite materials effectively. Research focusses on the impact of CNF on asphalt, asphalt binders, and mixtures. Traditional emulsified asphalt presents a limited performance at both high and low temperatures. Emulsified asphalt with a better performance, is therefore required in ...

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Evaluation of the Performance of Asphalt Binder Modified ...

It was found that the addition of CaCO 3 and Al2O 3 content has a significant effect on the physical properties of the asphalt, as the penetration reduced up to 50% for modified asphalt with CaCO 3 and 64% for modified asphalt with Al 2 O 3. The softening point of modified asphalt binders was increased up to 11 and 12% for both modifiers ...

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Preparation and properties of high viscosity and ...

To prepare high demanding binder for porous asphalt pavements, the polyurethane prepolymer (PUP) and styrene–butadiene–styrene (SBS) were used to modify the matrix asphalt compositely. First, based on a series of physical tests, the effects of binder composition on performance of SBS/PUP HVEA binder (SBS/PUP‐HVEA) were investigated.

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Asphalt Binder Basics - NDLTAP

Asphalt Binder Basics Specifications, History and Future. Asphalt Binder ... Asphalt Binder Properties 12 Liquid Semi-Solid Temperature Asphalt is a thermoplastic material that softens as it is heated and hardens when cooled. MS-2 ... performance of polymer-modified binders.

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Compatibility and Storage Stability of Asphalt Binder ...

[27] Yu J Y, Chen S B, Kuang D L. Preparation and Properties of MAH-g-SBS Modified Asphalt Crack Filling Material. Journal of Wuhan University of Technology, 09(2007) 59-61. Journal of Wuhan University of Technology, 09(2007) 59-61.

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Aging properties and mechanism of the modified asphalt by ...

May 25, 2012  For the consideration of the environmental and economic issues, retrieved packaging waste polyethylene and waste rubber powder were selected as modifiers to modify the ordinary oil asphalt, and the...

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Effect of Aging on the Rheological and Molecular Weight ...

Aug 17, 2021  Asphalt binder behaves as a viscoelastic material and its inherit performance is dominated by rheological and chemical properties. Aging of asphalt binder is a prominent distress for long-term in-service asphalt pavement. In this work, the effect of aging on base asphalt modified by polyphosphoric acid (PPA) has been investigated. For the objective, virgin asphalt binder was modified

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Evaluation of Self-Healing Performance and Mechanism ...

Jul 06, 2021  Materials and Sample Preparation. Base asphalt and SBS-modified asphalt binder were chosen as typical pavement engineering materials. The AH90 base asphalt was supplied by Panjin, Liaoning Province and the SBS-modified asphalt was supplied by

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Carbon Nanotubes-modified Asphalt Binder: Preparation and ...

Carbon Nanotubes-modified Asphalt Binder: Preparation and Characterization. This study focuses on the exploratory analysis of the mixing procedure of carbon nanotubes (CNTs) with asphalt cement (AC) and discusses the viscoelastic characteristics of neat and CNT-modified AC binders.

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Carbon Nanotubes-modified Asphalt Binder: Preparation and ...

This study focuses on the exploratory analysis of the mixing procedure of carbon nanotubes (CNTs) with asphalt cement (AC) and discusses the viscoelastic characteristics of neat and CNT-modified AC binders. Two CNT-asphalt cement mixing procedures including simple and wet processes were investigated. Viscoelastic properties of modified AC incorporated with 0.1, 0.5, and 1 (%w/w) CNT

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Relationships Between the Fatigue Properties of Asphalt ...

These included a PG 70-22, an air blown asphalt, a crumb-rubber modified binder, and two polymer-modified binders (Gibson et al., 2012). Properties of these binders are summarized in Table 5. As with the SHRP core asphalts, these were tested after RTFOT aging, to

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Polymer Modification of Paving Asphalt Binders Rubber ...

Jul 01, 1994  • Polymer modifiers for asphalt binders which contain a large percentage of butadiene (50% or greater), exhibit improved low temperature properties. This was observed as a decreased T g for a polybutadiene modified asphalt measured using dynamic mechanical analysis.

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