Synergistic influence of aging and moisture on performance of warm mix asphalt

Bhargava, Nishant; Das, Bhaskar Pratim; Siddagangaiah, Anjan Kumar

doi:10.1016/j.ijprt.2018.06.002

Cited by 7 publications

(4 citation statements)

References 37 publications

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“…A higher MQ value is associated with a stiffer mixture, leading to improved resistance against permanent deformation [84]. Asphalt mixtures possessing MQ values falling within the range of 2-5 kN/mm are deemed to satisfactory [85,86]. Analyzing the data provided in Fig.…”

Section: Marshall Stability Flow and Quotient Resultsmentioning

confidence: 99%

Recycling the electric arc furnace waste after geopolymerization in bitumen: experimental analyses and LCA study

Katanalp,

Tastan,

Ahmedzade

2024

Mater Struct

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The conversion of solid waste materials into cleaner products for road paving. applications appears to be a promising and sustainable option. However, there is still a lack of attention given to quantifying the potential environmental benefits of recycling solid wastes in asphalt pavements, regarding the impact on asphalt performance. To address this gap, the present study investigates the effects of recycling electric arc waste based geopolymers on asphalt binder and mixture characteristics, as well as environmental outputs. For this purpose, geopolymers were incorporated into both neat and SBS-modified binders. A comprehensive rheological investigation was conducted using cutting-edge multiple stress creep recovery (MSCR) and linear amplitude sweep (LAS) analyses. Stability, Marshall quotient, and flow values, as well as dry and wetconditioned tensile strength were considered, to determine asphalt mixture properties. In the Life Cycle Assessment (LCA), greenhouse gases resulting from fuel and energy consumption in each inventory phase were determined. The varying service lifetimes, maintenance and rehabilitation plans, and production and construction requirements of the different asphalt schemes were taken into account. Subsequently, the environmental impacts of the asphalt mixtures, including global warming potential, acidification, eutrophication, and smog formation potential, along with the total energy demand, were calculated across different stages of the LCA. The results show that the geopolymerization process results in important contributions in terms of both environmental savings and pavement performance.

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Section: Marshall Stability Flow and Quotient Resultsmentioning

confidence: 99%

Recycling the electric arc furnace waste after geopolymerization in bitumen: experimental analyses and LCA study

Katanalp,

Tastan,

Ahmedzade

2024

Mater Struct

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“…The WMA decreases the extent of oxidative aging in bitumen mixture and increase the susceptibility of mixture to rutting [16]. Bhargava et al (2018) and Sebaaly et al (2015) have been determined the effect of aging and stated the aging increases resistance to permanent deformation of the WMA and stress levels is vital in assessing the permanent deformation of asphalt mixture. The reduction in the stiffness of WMA when compared to a conventional HMA mixture increases the potential of permanent deformation during the initial service life [17,18].…”

Section: Introductionmentioning

confidence: 99%

“…Bhargava et al (2018) and Sebaaly et al (2015) have been determined the effect of aging and stated the aging increases resistance to permanent deformation of the WMA and stress levels is vital in assessing the permanent deformation of asphalt mixture. The reduction in the stiffness of WMA when compared to a conventional HMA mixture increases the potential of permanent deformation during the initial service life [17,18]. However, field assessment in terms of rutting has shown performance of WMA technology comparable to HMA [19].…”

Section: Introductionmentioning

confidence: 99%

Deformation and Resilient Behavior of Hot and Warm Mix Asphalt Concrete

Al-Mahdi

Sarsam

2018

CivileJournal

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Development of hazardous gases emissions through the production and construction of Hot Mix Asphalt (HMA) have encouraged the transition to Warm Mix Asphalt (WMA) which is considered as one of the best choices of sustainable materials in asphalt pavement. The temperature reduction in the mixing, handling, and compaction of the mix gets in saving energy, cutting emissions and significant cuts in construction costs. In this investigation, two WMA mixtures have been prepared in the laboratory using medium curing cutback (MC-30) and cationic emulsion asphalt. HMA mixture was also prepared for comparison. Marshall size Specimens of (101.6 mm) in diameter and (63.5 mm) in height were constructed from these mixtures and subjected to repeated Indirect Tensile Strength test (ITS) to determine the effect of asphalt type and content on deformation and resilient behavior of asphalt mixture. Another group of cylindrical specimens of (101.6 mm) diameter and (101.6 mm) in height have been constructed from these mixtures and subjected to repeated compressive stresses test to determine the rutting resistance of asphalt mixture. Test results were analyzed and compared. It was concluded that, the permanent deformations for cutback and emulsion treated WMA was higher than that of HMA by (50 and 35) % respectively. The Resilient Modulus (Mr) at 25 ⁰C under repeated (ITS) for cutback and emulsion treated WMA was lower than that of HMA by (39.95 and 27.94) % respectively. On the other hand, the (Mr) for cutback and emulsion treated WMA was higher than that of HMA by (43.75 and 5.47) % respectively under repeated compression load at stress level 0.138 (MPa).

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“…The results showed that hydrated lime was the only additive verified at least 80% of tensile strength ratio (TSR) for all freeze-thaw cycles, and appeared the highest values of tensile strength and TSR. Bhargava et al [18] resulted that the tensile strength of warm mix asphalt decreased with moisture and temperature increased. The resistance to permanent deformation will increase due to aging and interestingly moisture conditioning.…”

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confidence: 99%

Systematic Testing Methodology to Predict Stripping of Asphalt Concrete Mixture

AlKofahi¹,

Khedaywi²

2020

مجلة جدارا

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The stripping of asphalt cement still the most significant reason that causes the deterioration of asphalt concrete pavement. This study aims to compare and develop a systematic method for the results of stripping tests: Texas boiling, resilient modulus, and fatigue. Three types of aggregates and two types of anti-stripping additives were used. Texas boiling test, and then Marshall specimens with (6-8%) air voids subjected to medium or high moisture conditioning were used. The stripping potential evaluated by suggesting sequence tests steps for asphalt coating retained (60-80%) visually and by the resilient modulus (MR). The visual assessment of the boiling test and the rolling test is not enough to predict stripping. The degree of saturation had a very significant effect on the resilient modulus values. The use of the resilient modulus test for Marshall specimens is a reliable test to predict stripping. For the results of less than the range; add additives and re-evaluate the stripping. For results above the range; run a fatigue test with high saturation. In general, it found that the dosage of lime needed is between 1.5 to 2.0% by weight of aggregate, where for polyamine, it was between 0.75 to 1% by weight of asphalt binder. Lime additive showed better effects on stripping potential than polyamine (liquid) additive. The proposed methodology which organized by a flow chart is a sound step-by-step and practical procedure for predicting the stripping. It could be used as a guideline to assess the water susceptibility for any aggregate type

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Synergistic influence of aging and moisture on performance of warm mix asphalt

Cited by 7 publications

References 37 publications

Recycling the electric arc furnace waste after geopolymerization in bitumen: experimental analyses and LCA study

Recycling the electric arc furnace waste after geopolymerization in bitumen: experimental analyses and LCA study

Deformation and Resilient Behavior of Hot and Warm Mix Asphalt Concrete

Systematic Testing Methodology to Predict Stripping of Asphalt Concrete Mixture

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