Improving the aging resistance of SBS modified asphalt

Improving the aging resistance of SBS modified asphalt ...

Aug 01, 2017 · Highly reclaimed rubber (HRR)/SBS modified asphalt (HRRMA) technology is planned to endow the advantage of aging resistance of HRR to SBS modified asphalts. The effect of content and type of HRR, reclaim degree and vulcanization on morphologies, physical properties and aging behavior of SBS modified asphalt were investigated.

Cited by: 19

Improving the aging resistance of styrene‐butadiene ...

The antioxidants 1010 as scavenger of free radicals and 168 acting decomposition of hydroperoxides were used to improve the oxidation aging resistance of SBS copolymer. It has been found that synergic effect of 1010 and 168 may be the best in practice and 0.2 wt % 1010 + 0.4 wt % 168 can effectively prevent SBS from the thermal oxidation at certain temperature.

Cited by: 21

Rheological and aging behaviors of base and SBS modified ...

Like base asphalt binder, aging resistance of SBS modified asphalt binder was improved due to the introduction of thermochromic microcapsule. However, the influence of thermochromic microcapsule on anti-aging behaviors of SBS modified asphalt binder was more complex in comparison with base asphalt due to the existence of SBS modifier.

Cited by: 4

Short-term aging resistance investigations of polymers and ...

Dec 10, 2018 · Abstract. High viscosity is an important feature of SBS modified asphalt, but it is not always favorable because it need more energy to achieve the same viscosity for mixing and construction. Therefore, there are many attempts to improve rheological properties, and on the other hand maintain excellent high-temperature and low-temperature properties...

Cited by: 4

Preparation and properties of high viscosity modified asphalt

The use of crosslinker led to the formation of polymer network and improved the aging resistance of SM asphalt. The morphology observation shows crosslinker led to the formation of polymer network and improved the compatibility between SBS and asphalt. Plasticizer prompted the swelling and dispersion of SBS in asphalt and improved the effect of crosslinker further. Aging destroyed the polymer phase seriously and there was still residual polymer phase in asphalt

Cited by: 9

(PDF) Performance Evaluation of SBS Modified Asphalt with ...

Improvement in the thermal-oxidative aging properties of SBS modified asphalt can be achieved with the three different anti-aging additives, but the UV aging properties of anti-aging additive/SBS ...

Physical and rheological evaluation of aging behaviors of ...

However, aging effect on SBS modified asphalt is still a serious problem that needs to be resolved. It has been demonstrated that thermochromic materials can-not only adjust the road surface...

Investigation on recycling of SBS modified asphalt binders ...

Aug 30, 2015 · Recovery asphalt (RA) was obtained from recycle SBS modified asphalt mixture. RSMA containing RA, fresh SMA and rejuvenators were prepared. Rejuvenator II improve the aging resistance and decrease the viscosity of RSMA. Regenerated modified asphalt binder has better aging resistance.

Cited by: 26

Improving the aging resistance of styrene‐butadiene ...

The antioxidants 1010 as scavenger of free radicals and 168 acting decomposition of hydroperoxides were used to improve the oxidation aging resistance of SBS copolymer. It has been found that synergic effect of 1010 and 168 may be the best in practice and 0.2 wt % 1010 + 0.4 wt % 168 can effectively prevent SBS from the thermal oxidation at certain temperature.

Cited by: 21

Evaluation of Aging Resistance of Graphene Oxide …

(1% and 3% by weight of asphalt) can improve the aging resistance performance of the asphalt, 80/100 penetration grade asphalt (90 A) and styr ene–butadiene–styrene modified asphalt (SBS MA) were...

Temperature Sensitivity Characteristics of SBS/CRP ...

In order to improve the aging resistance of bitumen, inorganic or organic powders such as rubber powder, nano-TiO2 and carbon black can be added. Rossi, et al. [23,24] studied natural resources such as phospholipids, ascorbic acid and organosilane, polyphosphoric acid, food grade phospholipids were homogeneously mixed to bitumen to improve aging resistance. However, these modified bitumens

Cited by: 4

Effect of Hindered Amine Light Stabilizer on Rheological ...

Preventing the polymer-modified asphalt from aging is of significance for the promotion of long-life asphalt pavement. This study investigated the effect of the hindered amine light stabilizer (HALS) on improving the aging resistance of asphalt modified with two types of commonly used styrene-butadiene-styrene (SBS). The HALS/SBS modified asphalt was prepared via melt blending.

Investigation on recycling of SBS modified asphalt binders ...

Recovery asphalt (RA) was obtained from recycle SBS modified asphalt mixture. RSMA containing RA, fresh SMA and rejuvenators were prepared. Rejuvenator II improve the aging resistance and decrease the viscosity of RSMA. Regenerated modified asphalt binder has better aging resistance.

Cited by: 26

The benefits of modified asphalts | Asphalt magazine

AI modified asphalt study. The positive performance of modified asphalts is commonly recognized and demonstrated by lab testing, but there has been little available documentation of improved field performance. A study undertaken by the Asphalt Institute cited here is an example of one effort to document the performance benefits.

Improved Weather Resistance of Modified Bitumen …

These oils are less soluble in the APP polymer component of APP modified bitumen, so they have a greater tendency to migrate out of the mem­ brane. With SBS modified bitumen, the oils are much more soluble in the SBS polymer component and take longer to migrate out of the modified bitumen.

Raqiqa Khan | Doctor of Philosophy | SJTU - ResearchGate

The use of HRR in SBS modified asphalt is not only a cost-effective way to recycle waste rubbers but also improve the aging resistance and physical properties.

Evaluation of Aging Resistance of Asphalt Binder Modified ...

Graphene oxide (GO) and carbon nanotubes (CNTs) hold the potential to improve antiaging properties of construction material such as asphalt binders and mixtures. To prolong the service life of asphalt pavement, the aging resistance of 70# base asphalt binder, GO-modified asphalt binder, and CNT-modified asphalt binder was evaluated.

Study on Effects of Aging on SBS Modified Asphalt Based on ...

Sep 13, 2018 · In order to study the effects of aging on rheological and molecular properties of styrene-butadiene-styrene (SBS) modified asphalt, rheological and gel permeation chromatography (GPC) experiments were conducted on unaged and aged asphalt binders. The results show that the penetration of SBS modified asphalt droped with aging.

Author: Daisong Luo, Meng Guo, Yiqiu Tan, Yafei Li

MODIFIED BITUMEN – Alvarado Roofing

SBS modified bitumen sheets are either set in hot mopped asphalt or adhered with cold process adhesives. While modified asphalt provides the primary waterproofing characteristics of these membranes, a polyester mat adds strength and puncture resistance. Polyester has excellent elongation, tensile strength and recovery.

21 - Polymer modified bitumens - Modifications of bitumen ...

PMBs have improved mechanical properties compared to regular bitumen. These properties include lower temperature susceptibility, resistance to fatigue, lower aging, and high cohesion. Finally, Cross linking allows to further improve the performance of SBS modified bitumen. I …

Improving the aging resistance of styrene ... - DeepDyve

Apr 01, 2006 · Improving the aging resistance of styrene–butadiene–styrene tri-block copolymer modified asphalt by addition of antioxidants. Polymer Degradation and Stability, 91(4), 795-804.

Effect of Hindered Amine Light Stabilizer on Rheological ...

May 22, 2014 · Preventing the polymer-modified asphalt from aging is of significance for the promotion of long-life asphalt pavement. This study investigated the effect of the hindered amine light stabilizer (HALS) on improving the aging resistance of asphalt modified with two types of commonly used styrene-butadiene-styrene (SBS).

Evaluation of Degradation of SBS Modified Asphalt Binder ...

Styrene-butadiene-styrene (SBS) modified PG 64-22 and PG 76-22 binders are studied to investigate the degradation of polymer because of aging applied by: rolling thin film oven (RTFO), pressure aging vessel (PAV), and ultraviolet (UV).

Performance Evaluation of SBS Modified Asphalt with ...

Mar 07, 2012 · The results show that the penetration, ductility, and softening point are increased, whereas the viscosity is decreased, with the addition of different anti-aging additives. The DSR analysis indicates that anti-aging additives can enhance the elastic behavior and improve the thermal stability of SBS modified asphalt.

Cited by: 15

Fatigue Behavior of Styrene-Butadiene­ Styrene Modified ...

test the hypothesis that polymer modifiers improve the performance of asphalt-modified pavements. The current· study evaluates styrene-butadiene-styrene (SBS) modified AC-5 mixtures. This evaluation involved aging by thermal cycling in a low-temperature regime. The performance of the mod­

Cited by: 11

POLYMER MODIFIED ASPHALT - e-asfalto

POLYMER MODIFIED ASPHALT Yvonne Becker, Maryro P. Méndez ... • To improve oxidation and aging resistance ... Styrene butadiene (SB) and styrene butadiene styrene (SBS) block copolymers can increase the elasticity of the asphalt, much like a rubber band, so they are consi-

Yubin Sun's research works | Wuhan University of ...

Some photostabilizers or UV absorbers which are widely used in polymer products are added into bitumen in an effort to achieve the same effect, improving the UV aging resistance of bitumen

Evaluation of Aging Resistance of Asphalt Binder Modified ...

Graphene oxide (GO) and carbon nanotubes (CNTs) hold the potential to improve antiaging properties of construction material such as asphalt binders and mixtures. To prolong the service life of asphalt pavement, the aging resistance of 70# base asphalt binder, GO-modified asphalt binder, and CNT-modified asphalt binder was evaluated.

Laboratory Evaluation of Aging Behaviour of SBS Modified ...

Abstract. To study the effect of aging SBS modified asphalt on the performance of asphalt pavement, aging at various times and temperatures was conducted with thin film oven, and then tests were made about the penetration, softening point, ductility, viscosity, toughness, and fluorescence microscopy of modified asphalt with different aging levels.

Research of crumb rubber on aging properties of SBS ...

SBS modified asphalt with crumb rubber was prepared by adding the activated crumb rubber swelled by furfural extraction oil into SBS,their softening point、penetration、ductility and other properties before or after thermal aging were measured.The results indicate that adding crumb rubber into SBS modified asphalt can not only decrease the properties of thermal aging of the modified asphalt ...

Effect of Short-Term Aging on Asphalt Modified …

Effective approaches are required to be developed to solve the poor compatibility and thermal stability problems of crumb rubber-modified asphalt (CRMA). This study focuses on a method called microwave activation. However, seldom researches pay attention to the properties of MACRMA after aging. The objective of this study was to prepare microwave-activated CRMA (MACRMA) and investigate the ...

Influences of Naphthenic Oil on SBS-Modified Asphalt Binder

Influences of Naphthenic Oil on SBS-Modified Asphalt Binder. As an organic solvent, naphthenic oil is used widely in the polymer industry, so it has the potential to be used with polymer to improve the performance of asphalt binder in pavement engineering.

Excellent aging resistance - specialty oils and bitumen

In general, the modified binders with SBS polymers display excellent aging resistance and good rheological properties even after many years in the field. Enhanced asphalt performance in terms of fatigue, low temperature cracking and rutting was also observed.

Road performances of mesoporous nano-silica modified ...

Jul 28, 2017 · The objective of this paper was to find new modifier to improve the aging resistance and low temperature cracking resistance of asphalt. To investigate the aging resistance of modified asphalt binders, mesoporous nano-silica (doping Ti4+) was used as a asphalt modifier. Some physical properties including penetration, ductility, and softening point of asphalt were analyzed with RTFO …

Preparation and Properties of OMMT/ SBS Modified Bitumen

The results showed that OMMT/SBS modified bitumen exhibited a decreasing penetration, an increasing softening point, and a decreasing ductility. Compared with that of SBS modified bitumen, the OMMT /SBS modified bitumen can enhance the aging resistance of SBS modified bitumen.

Effect of layered double hydroxides on ultraviolet aging ...

Jun 21, 2015 · Layered double hydroxides (LDHs)/styrene-butadiene-styrene (SBS) copolymer modified bitumen was prepared by melt blending. The effect of LDHs on the ultraviolet (UV) aging behavior of SBS modified bitumen was investigated. The changes of chemical structures of modified bitumen before and after UV aging were characterized by Fourier transform infrared spectroscopy …

Aging Characteristics of Polymer Modified Binders in ...

prediction. For polymer modified binders, particularly when applied in porous asphalt, relevance of the tests must be evaluated. The main objective of this paper is to study the aging characteristics of styrene-butadiene-styrene (SBS) modified binders in porous asphalt during asphalt production and in asphalt pavement.

Laboratory Evaluation of Aging Behaviour of SBS …

Laboratory Evaluation of Aging Behaviour of SBS Modified Asphalt ... aging of SBS modified asphalt [6, 7], the existing findings ... a theoretical foundation for improving the service life of SBS modified asphalt pavement and recycling discard SBS modifiedasphaltmixture. Hindawi

Novel Preparation Technology of SBS Modified Asphalt

Colloid mill or high-speed shearing mechanical is used in traditional preparation technology of SBS modified asphalt for the dispersion of SBS in matrix asphalt, which leads to the high equipment cost in production of SBS modified asphalt. The fractions oil of FCC slurry oil distillation with a high content of aromatics is a good swelling agent of SBS.

Study of Antiultraviolet Asphalt Modifiers and Their ...

Zhang et al. [27, 28] modified SBS asphalt with OMMT and found that OMMT could improve the UV ageing resistance of asphalt. In recent years the use of LDHs as antiageing agent to improve the asphalt ageing resistance has attracted much attention [ 17 ].

Polymer Modified Asphalt – ULTRAPAVE®

RESISTANCE TO SHORT AND LONG TERM AGING. The addition of ULTRAPAVE ® SBR reduces the thermal and oxidative aging effects which occur in the asphalt cement. The SBR modified binder shows an improvement in properties over unmodified asphalt. With the incorporation of the Pressure Aging Vessel, estimates of the long-term aging properties can be made.

Optical Characterization of Asphalt Binders Containing Wax ...

In between thermal-oxidative (heat and oxygen) and photo-oxidative (ultraviolet irradiation and oxygen) aging process of bitumen, photo-oxidative aging mainly depends on the optical properties of the asphalt binder. The higher the reflection (or the lower the absorption of the binders), the better the pavement serviceability. The literature review indicates that there is limited research ...

POLYMER MODIFIED ASPHALT - e-asfalto

POLYMER MODIFIED ASPHALT Yvonne Becker, Maryro P. Méndez ... • To improve oxidation and aging resistance ... Styrene butadiene (SB) and styrene butadiene styrene (SBS) block copolymers can increase the elasticity of the asphalt, much like a rubber band, so they are consi-

What are the advantages of SBS modified asphalt? - Quora

Asphalt is still the best-known waterproofing material. However, it has poor aging characteristics, becomes brittle in cold weather, is fluid in hot weather, and has little resistance to fatigue. Elastomeric compounds such as SBS (styrene-butadien...

Yubin Sun's research works | Wuhan University of ...

Layered double hydroxide (LDH) was surface organic modified by γ-(2,3-epoxypropoxy) propyltrimethoxysilane (KH560) and applied to improve UV ageing resistance of bitumen.

Modified Bitumen (MB) or Modified Bitumen Membranes …

SBS (Styrene-Butadiene-Styrene) modifies the asphalt by forming a polymer network within the bitumen. SBS gives the bitumen rubber-like characteristics and improved resistance to aging and weathering. Most SBS-modified bitumen sheets are either set in hot mopping asphalt, torch-applied or adhered with cold-process adhesives.

Abstract - Harvard University

Conventional physical tests and atomic force microscopy images of the SBS modified asphalt, Zn-Al-CO 3 2--LDH/SBS modified asphalt and Zn-Al-PMCA-LDH/SBS modified asphalt before and after UV aging indicated that Zn-Al-PMCA-LDH improved the UV aging resistance of SBS modified asphalts.

Polymer-Modified Asphalt 101

asphalt through physical entanglements. This behavior gives the polymer-modified asphalt more elastic behavior. An example of this would be a PMA with a high % of block polymers. The polymer can be chemically bonded to certain functionalities on the asphalt molecule.

Cold Adhesive SBS-Modified Bitumen Roofing Applications ...

May 12, 2015 · SBS Modified Bitumen Roofing Systems are popular choices for low-slope commercial, industrial and institutional buildings when an asphalt system is desired. In addition to providing beauty, affordability and reliability, these systems are trusted to perform exceptionally well against extreme weather conditions.

Aging Mechanism and Properties of SBS Modified Bitumen ...

Apr 11, 2019 · The combination of macroscopic performance tests and microstructure tests was used to analyze the physical, rheological, and microstructure changes of virgin bitumen and SBS modified bitumen after The film oven test (TFOT) aging and UV aging in different environments (UV, UV + Water, UV + Acid, UV + Salt).

RESEARCH BUREAU

improving the cracking resistance of asphalt pavement at low service temperatures and its rutting resistance at high service temperatures. However, the elastomer modification tends to not increase the aging resistance of asphalt pavement as much as plastomeric modification without periodic fog

Flat Roof Systems: Built-up Roof and Modified Bitumen ...

Nov 15, 2017 · Modified bitumen is a roofing membrane consisting of asphalt and plastic or rubber polymers, and is therefore widely considered an evolution of asphalt built-up roofing (BUR). Modified bitumen displays the built-in redundancy of asphalt built up, as well as the UV resistance and flexibility of a modified membrane. This roof system has two types ...

Mightyplate Modified Bitumen ... - Texas Refinery Corp

MIGHTYPLATE ® GRANULATED SINGLE-PLY provides excellent waterproofing protection with minimal damage potential due to thermal stresses. MIGHTYPLATE ® GRANULATED SINGLE-PLY combines the exceptional elongation and fatigue resistance properties of modified bitumen with the strength of a polyester reinforcement mat and the UV reflecting top granule coat.

Rheological Properties and Chemical Bonding of Asphalt ...

The results show that SBS modified asphalt significantly ... the viscoelastic response and rutting resistance of CNFs modified asphalt binder were improved, as well as the fatigue life (Khattak et al. 2011, 2012). Raw SWNT (single-wall nanotube) ... asphalt modifier for improving asphalt performance. In this study, the nanosilica was used to ...

Effect of montmorillonite on properties of styrene ...

Effects of MMT on Aging Properties of SBS Modified Bitumen Aging is a very complex process in bitumen, and the degree of complexity increases when PMB are involved. Changes in the properties of aged PMB were dependent on a combined effect of bitumen oxidation and polymer degradation [7].

Fania Roofing | Modified Bitumen Roofing Systems ...

SBS modified bitumen creates a rubber-like sheet with improved resistance to weathering and aging. This bitumen is commonly installed torch-applied, adhered with a cold-process adhesive or set in hot-mopped asphalt. APP (Atactic Polypropylene) APP modified bitumen creates a more plastic-like membrane that performs well in extreme cold and hot ...