Effect of SBS Polymer and Anti-stripping Agents on the Moisture Susceptibility of Hot and Warm Mix Asphalt Mixtures

Omrani, Hamed; Ghanizadeh, Ali Reza; Tanakizadeh, Amin

doi:10.28991/cej-030931

Cited by 8 publications

(5 citation statements)

References 19 publications

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“…adding anti-stripping agents, TSR values for all the mixtures satisfied the standard requirement and the specimens showed favorable behavior against moisture. Zycosoil with concentrations about 5% of hydrated lime had good performance in cutting into the stripping damage of warm mix asphalt (WMA) mixtures [37].…”

Section: Figure 7 -Tsrs (Three Cycles-conditioned/one Cyle-conditioned) Of Modified and Unmodified Mixturesmentioning

confidence: 99%

Evaluation of Stripping Problem in Terms of Additive Types and Ratios in Asphalt Pavements

2022

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Stripping in asphalt mixtures is the one of foremost distress mechanisms. To prevent stripping, fatty acids (AS) and hydrated lime (HL) additives are often used as anti-stripping additives. The determination of the correct usage ratios of these additives and the storage stability of bitumen constitutes important research topics for anti-stripping additive applications. Three surfactants and hydrated lime were used in three ratios to evaluate the effect of additive ratio and type. Indirect tensile strength (ITS) values obtained from samples with one and three cycle modified Lottman conditioning and indirect tensile strength ratios (ITSRs) were interpreted in the context of water damage. The load-carrying capacity of the conditioned mixtures increased significantly. Even if the degree of damage was considerably increased at the end of three cycles, the integrity of the mixtures was maintained. Both AS and HL significantly increased water damage resistance. Modified Lottman conditioning has an observable level of damage. Additives remained functional and maintain their mechanisms of benefit, especially in the event of a high degree of damage.

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Section: Figure 7 -Tsrs (Three Cycles-conditioned/one Cyle-conditioned) Of Modified and Unmodified Mixturesmentioning

confidence: 99%

Evaluation of Stripping Problem in Terms of Additive Types and Ratios in Asphalt Pavements

2022

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“…Waste polyethene terephthalate (PET) makes up about 60% of the plastic waste and is the primary component of plastic waste. The addition of PET as a modifier in asphalt binder and asphaltic mixtures besides treating aggregates against moisture and can increase the mixture's strength [66][67][68][69]. Thus, incorporation of plastic wastes into asphalt mixtures perform a dual function of enhancing the flexibility of pavement performance and reducing environmental pollution [70].…”

Section: Plastic Wastementioning

confidence: 99%

A Review of the Utilisation of Recycled Waste Material as an Alternative Modifier in Asphalt Mixtures

2020

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The possibility of using waste materials in road construction is of great interest as their utilisation may contribute to reducing the problems of hazard and pollution and conserve natural resources. Thus, there is an urgent need to find a sustainable method for using waste materials as a substitute in the standard asphalt binders. There are several concerns about the physical and chemical properties and mechanical performance of asphalt pavements incorporated with waste material in the effort to reduce permanent deformation of the road surface. This review article presents a brief discussion of the asphalt mixtures modified with waste material, and the recycled materials used as a modifier in the asphalt mixture. The present paper summarises the use of crumb rubber, crushed concrete, steel slag, glass fibre and plastic waste in asphalt mixtures. The use of waste materials as a modifier in asphalt mixture resulted in improved asphalt pavement performance. Results advocate that rubberised asphalt mixture with desired properties can be designed as an additive with a friendly environmental approach in construction materials. The researches that adopted the influence of usage, recycle waste material to improve the performance of the asphalt of the road are still limited compared to other construction fields. Doi: 10.28991/cej-2020-SP(EMCE)-05 Full Text: PDF

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“…Zycotherm gives better chemical bonding for extended moisture resistance and it ensures about 100% coating of bitumen at low temperature. Hamed Omrani, Ali Reza Ghanizadeh (2017) 3 The primary objective of this study is exploring the moisture susceptibility of unmodified and SBS-modified hot and warm mix asphalt mixtures. Two different WMA additives including Aspha-min and Sasobit were employed to fabricate WMA specimens.…”

Section: International Journal Of Engineering Research and Technology (Ijert)mentioning

confidence: 99%

Optimization of Different Anti Stripping Agents in Construction of Flexible Pavement

Tripathi¹,

Bbdu²

2020

IJERT

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The aim of this research project is to improve current practice by investigating different test methods to quantify moisture damage to serve the short-and longterm needs of the agency and industry. This research deals with important concepts of stripping as, bitumen chemistry and rheology, aggregate properties (chemical and mineralogical composition, surface texture, morphology, porosity, etc.), traffic, water properties, construction practices (mixing, placement and in-service drainage) and nature of antistripping additives. This paper presents the effect of anti-stripping additives in bituminous mixes. As per researches series of laboratory tests have been conducted with varying percentage of these Anti-stripping additives, added Individually and in Combinations, to determine their optimum percentages. This report presents the results of experimental investigations carried out to study the effect of Wetbond-S, Zycotherm and Bitugrip on bitumen and aggregate. Boiling water test and Stripping value test were conducted as screening tests performed on Wetbond-S, Bitugrip and Zycotherm modified bitumen. The current research shows the optimization of different anti-stripping additives to evaluate moisture susceptibilities of bituminous mixes. This paper deals with the review of some previous studies that are done to improve the adhesion between bitumen and aggregate.The stripping value decreases while increasing the percentage of anti-stripping additives to the bitumen. The results indicated that the addition of anti-stripping agents increase moisture resistance of asphalt mixes to some extent. Moreover, it was concluded that mix samples prepared using anti-stripping additive imparted more correlation and greater resistance to water damage.

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Effect of SBS Polymer and Anti-stripping Agents on the Moisture Susceptibility of Hot and Warm Mix Asphalt Mixtures

Cited by 8 publications

References 19 publications

Evaluation of Stripping Problem in Terms of Additive Types and Ratios in Asphalt Pavements

Evaluation of Stripping Problem in Terms of Additive Types and Ratios in Asphalt Pavements

A Review of the Utilisation of Recycled Waste Material as an Alternative Modifier in Asphalt Mixtures

Optimization of Different Anti Stripping Agents in Construction of Flexible Pavement

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