Effects of various additives on the moisture damage sensitivity of asphalt mixtures

Aksoy, Atakan; Şamlioglu, Kurtuluş; Tayfur, Süreyya; Özen, Halit

doi:10.1016/j.conbuildmat.2004.05.003

Cited by 130 publications

(32 citation statements)

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“…However, the authors would suggest that CAEM should be considered a sufficiently durable material against moisture and frost damage if the values of ITSR for both types of damage are more than 70%. A similar suggestion of minimum acceptable ITSR is found in the literature for HMA [38,39].…”

Section: Fig 9 the Results Of Frost Damage For Caemssupporting

confidence: 60%

Mechanical, durability and microstructure properties of Cold Asphalt Emulsion Mixtures with different types of filler

Nassar

Mohammed

Thom

et al. 2016

Construction and Building Materials

102

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A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription. AbstractThe primary aim of this study is to investigate the enhancement of Cold Asphalt Emulsion Mixtures (CAEMs) using binary and ternary blended fillers (BBF and TBF), including an indepth assessment of the microstructure. Ordinary Portland cement (OPC), fly ash (FA) and ground granulated blast furnace slag (GGBS) were used for the BBF while silica fume (SF) was added to the BBF to obtain TBF. The mechanical and durability results indicated that the TBF was more suitable than the BBF for the production of CAEMs. The microstructural assessment indicated that the effect of BBF on the internal microstructure of CAEMs was slightly negative and more noticeable in CAEMs containing FA. It is proposed that the addition of SF to BBF mixtures can eliminate the delay in formation of hydration products caused by the bitumen emulsion. Overall, the research suggests that the use of BBF-CAEMs might be appropriate for pavements in cold climate whereas TBF-CAEMs would be effective in road pavements exposed to severe conditions both in hot and cold climates.

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Section: Fig 9 the Results Of Frost Damage For Caemssupporting

confidence: 60%

Mechanical, durability and microstructure properties of Cold Asphalt Emulsion Mixtures with different types of filler

Nassar

Mohammed

Thom

et al. 2016

Construction and Building Materials

102

View full text Add to dashboard Cite

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“…This bonding must be established at the initial stages of contact between the bitumen and the aggregate and must endure during the lifetime of the (Ramaswamy and Low, 1990;Isacsson and Lu, 1995;Morales et al, 2004;Akmal and Usmani, 1996) and Kadi et al, 1996) have demonstrated that bitumen properties (e.g., viscoelasticity and temperature susceptibility) can be improved using an additive or a chemical reaction modification. These results have been further verified by various authors including Navarro et al, 2002;Shuler and Douglas, 1990;Ramanathan et al, 1991;Law, 1995 andAksoy et al, 2005. Among various types of additives, chemical anti-stripping agents are probably the most promising as reported by Gorkem and Sengoz (2009) and Giavarini and Rinaldi (1989).…”

Section: Introductionsupporting

confidence: 77%

Utilisation of waste plastic in bituminous mix for improved performance of roads

Jafar

2015

KSCE J Civ Eng

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The use of waste plastic as a partial aggregate replacement in bituminous mix products often suffers from weak bonding between the plastic surface and the bitumen. This work reports on the use of plastic waste and chemical additives in order to improve the performance of the volumetric and mechanical properties of bituminous mixtures. The selected recycled waste plastics were used as partial aggregate replacement in bituminous mix product. The plastics were treated using a strong oxidising mixture of dichromate and sulphuric acid while the bitumen was treated with a cross linking agent, polyethyleneimine. Three modified bituminous mixtures were prepared and the stiffness results (from Retained Stiffness after Water Immersion Test) were compared with the control bituminous mixture. Over the ten measurement cycles it was observed that the stiffness increased by 10% for the chemically modified bituminous mixtures. This improvement is attributed to an increase in the bonding forces between the aggregates and the bitumen. Furthermore, a mechanism is proposed in order to explain the effect of the chemical additives on the increase in the stiffness of the bituminous mixture.

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“…It should be noted that the MQ is a measure of mix resistance to shear and permanent deformation and hence rutting [6]. The second group of samples was immersed in water at 60 o C for 24 hrs.…”

Section: 2marshall Propertiesmentioning

confidence: 99%

Properties of Epoxy-Asphalt Pavement Mixture for Bridge Decks

Albayati¹,

Al-Azawee²

2018

NJES

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Improving the ability of asphalt pavement to survive the heavily repeated axle loads and weathering challenges in Iraq has been the subject of research for many years. The critical need for such data in the design and construction of more durable flexible pavement in bridge deck material is paramount. One of new possible steps is the epoxy asphalt concrete, which is classified as a superior asphalt concrete in roads and greatly imparts the level of design and construction. This paper describes a study on 40-50 penetration graded asphalt cement mixed with epoxy to produce asphalt concrete mixtures. The tests carried out are the Marshall properties, permanent deformation, flexural fatigue cracking and moisture damage. Epoxy asphalt mixes performed better on resistance to fatigue and permanent deformation. They also performed significantly better on low-temperature properties and resistance to moisture damage. The addition of 30 percent of epoxy (by weight of asphalt cement) resulted in increase of Marshall stability by 39.8 percent, improve the tensile strength ratio by 22.9 percent, lowering both the rate of permanent deformation by 26.8 percent and the fatigue accumulation coefficient by 53.5 percent, in comparison with control HMA. Based on the above findings, it is recommended to use epoxy asphalt mixes as an optimal material for paving bridges deck in Iraq since it showed good prospects for this application due to the valuable performance and durability improvement.

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Effects of various additives on the moisture damage sensitivity of asphalt mixtures

Cited by 130 publications

References 1 publication

Mechanical, durability and microstructure properties of Cold Asphalt Emulsion Mixtures with different types of filler

Mechanical, durability and microstructure properties of Cold Asphalt Emulsion Mixtures with different types of filler

Utilisation of waste plastic in bituminous mix for improved performance of roads

Properties of Epoxy-Asphalt Pavement Mixture for Bridge Decks

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