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Journal articles on the topic 'WMA additives'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Şahin, Süleyman Nurullah Adahi, Metin Ipek, and Mehmet Bariş Gökçek. "Investigation of the Effects of Additives used in Reducing Asphalt Production Temperatures." Slovak Journal of Civil Engineering 31, no. 1 (2023): 34–44. http://dx.doi.org/10.2478/sjce-2023-0004.

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Abstract This study is related to evaluations of the performance and usability evaluations of existing and also newly produced Warm Mixed Asphalt (WMA) additives. Viscosity, softening point, and penetration tests were performed on bitumen with additives without changing the bitumen rate for the additives. For the asphalt concrete, Marshall Stability tests were performed. WMA additives are used to reduce asphalt production temperatures and, consequently, the temperature of the mixture significantly. According to the Marshall Stability test, it was determined that the WMA samples fulfilled value

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2

Cao, Wei Dong, Shu Tang Liu, and Xin Zhuang Cui. "Determination of Compacting Temperatures of Rubberized Asphalt Mixtures Containing Warm Mix Asphalt Additives." Applied Mechanics and Materials 99-100 (September 2011): 875–80. http://dx.doi.org/10.4028/www.scientific.net/amm.99-100.875.

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To determine the compacting temperatures of rubberized asphalt (RA) mixtures containing warm mix asphalt (WMA) additives, a total of three RA binders were produced in laboratory using two kinds of WMA additives (Sasobit and CW), and one control binder without WMA additive. Brook rotational viscosity test of RA binders and Marshall compaction test of RA mixtures at various temperatures were conduced to study the viscosity-temperature properties of RA binders with WMA additives and analyze the volumetric properties of RA mixtures with different compacting temperatures, respectively. The results

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3

Belc, Anda Ligia, Erdem Coleri, Florin Belc, and Ciprian Costescu. "Influence of Different Warm Mix Additives on Characteristics of Warm Mix Asphalt." Materials 14, no. 13 (2021): 3534. http://dx.doi.org/10.3390/ma14133534.

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The interest in minimising fuel consumption and greenhouse gas emissions among road specialists is increasing. Thus, methods for reducing asphalt concrete mixing and compaction temperatures by a few tens of degrees Celsius without compromising the long-term performance has become a topic of significant interest. This study is focused on the analysis of warm mix asphalt (WMA) prepared with locally available materials in order to determine the suitable technology applicable to the specific traffic and climatic conditions of Romania. WMA was prepared using different warm mix additives (organic ad

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Bhat, Faheem Sadiq, and Mohammad Shafi Mir. "Study Investigating the Influence of Warm-Mix Asphalt Additives on Rutting and Fatigue Performance of Nano-Modified Asphalt Binders." Transportation Research Record: Journal of the Transportation Research Board 2676, no. 4 (2022): 719–31. http://dx.doi.org/10.1177/03611981211064995.

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The current study investigates the synergized effect of a nanomaterial and two warm mix additives asphalt (WMA) additives on different properties of asphalt binders. The study used an optimal percentage of 2% for nano-Al2O3; two WMA additives were used in different concentrations. The results revealed that the addition of WMA additives increased the softening point of nano-Al2O3 modified asphalt binder. Penetration and ductility results showed a decrease after the introduction of WMA additives. The viscosity of nano-Al2O3 modified asphalt binders showed a reduction after the introduction of WM

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Caputo, Paolino, Abraham A. Abe, Valeria Loise, et al. "The Role of Additives in Warm Mix Asphalt Technology: An Insight into Their Mechanisms of Improving an Emerging Technology." Nanomaterials 10, no. 6 (2020): 1202. http://dx.doi.org/10.3390/nano10061202.

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The asphalt industry’s incentive to reduce greenhouse gas emissions has increased since the 1990s due to growing concerns on environmental issues such as global warming and carbon footprint. This has stimulated the introduction of Warm Mix Asphalt (WMA) and its technologies which serve the purpose of reducing greenhouse gas emissions by reducing the mixing and compaction temperatures of asphalt mix. WMA gained popularity due to the environmental benefit it offers without compromising the properties, performance and quality of the asphalt mix. WMA is produced at significantly lower temperatures

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Shi, Peng Cheng, Zhao Xing Xie, Wen Zhong Fan, Li Li Wang, and Ju Nan Shen. "Selecting Warm Mix Asphalt (WMA) Additives by the Properties of WMA Binders." Advanced Materials Research 753-755 (August 2013): 585–90. http://dx.doi.org/10.4028/www.scientific.net/amr.753-755.585.

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The objective of this research was to investigate the influence of WMA additives on the properties of WMA binders through a series of laboratory testing such as viscosity, penetration, ductility, and softening points on the binders. The experimental design included the use of three WMA additives of Sasobit, Rediset, and Evotherm at a recommended content of 2, 2 and 0.6% respectively, two base binder sources, and one modified binder sources. The properties of WMA binders were compared to those of original asphalts without the additives as controls. Results from this study showed that: (1) Three

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Zhu, Hong, Zhao Xing Xie, Wen Zhong Fan, Li Li Wang, and Ju Nan Shen. "Effects of Warm Mix Asphalt (WMA) Additives on the Properties of WMA Mixtures." Applied Mechanics and Materials 275-277 (January 2013): 2097–102. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.2097.

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The objective of this research was to investigate the influence of Warm Mix Asphalt (WMA) additives on asphalt mixture properties through the laboratory testing programs such as air voids, tensile strength ratio (TSR), dynamic stability, and low temperature bending failure strain tests. The experimental design included the use of three WMA additives of Sasobit, Evotherm and Rediset, one base (unmodified) binder source, and one modified binder source. The WMA mixtures were compared to those of controls, i.e., mixtures without the additives. Results from this study showed that: (1) WMA mixtures

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8

Hasan, Wshyar M., Rana A. Yousif, Abbas F. Jasim, and Sady A. Tayh. "Enhancing Bitumen Properties through Worm Mix Asphalt Additives: A Study on Physical and Rheological Characteristics." E3S Web of Conferences 427 (2023): 03027. http://dx.doi.org/10.1051/e3sconf/202342703027.

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This study aimed to determine how various concentrations of warm mix asphalt (WMA) additives can affect the rheological and physical characteristics of asphalt cement. Bitumen was modified by the chemical additive PAWMA® with an addition ratio of (0.2, 0.4, and 0.6), while the organic additives, Sasobit® and Kaowax®, were added at concentrations of (2, 4, and 6%) by the weight of bitumen. Bitumen hardness, softness, temperature susceptibility, viscosity, and elastic behavior have all been measured using a variety of physical and rheological tests, such as the penetration degree, softening poin

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9

Xiao, Feipeng, V. S. Punith, Serji N. Amirkhanian, and Bradley J. Putman. "Rheological and chemical characteristics of warm mix asphalt binders at intermediate and low performance temperatures." Canadian Journal of Civil Engineering 40, no. 9 (2013): 861–68. http://dx.doi.org/10.1139/cjce-2012-0363.

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Warm asphalt has been gaining increasing popularity in recent years around the world due to many reasons including the energy reductions and environmental benefits. In the present study, the objective was to conduct a laboratory investigation of rheological properties of eight binders with four non-foaming warm mix asphalt (WMA) additives at intermediate and low performance temperatures in terms of Superpave low temperature test criteria. The conventional testing procedures such as dynamic shear rheometer (DSR), bending beam rheometer (BBR) test as well as specific Fourier transform infrared s

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10

Chomicz-Kowalska, Anna, Joanna Bartos, Krzysztof Maciejewski, and Mateusz M. Iwański. "The Combined Effects of Additives on the Conventional and High-Temperature Performance Properties of Warm Mix Asphalt Binders." Materials 16, no. 24 (2023): 7648. http://dx.doi.org/10.3390/ma16247648.

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The present study investigates the effects of the simultaneous use of two additives, an organosilane warm mix asphalt (WMA) agent and a grade-bumping polyolefin compound, on the conventional and high-temperature performance properties of a paving grade 50/70 bitumen and a polymer-modified 45/80-55 bitumen. The WMA agent and polyolefin additive were introduced to the binders at rates of up to 0.3% and 2%, respectively. The base asphalt binders and their blends with the additives were tested before and after aging in a rolling thin film oven test at a temperature of 143 °C. The effects of the in

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Xiao, Feipeng, Wenbin Zhao, and Serji N. Amirkhanian. "Aging Influence on Fatigue Characteristics of RAC Mixtures Containing Warm Asphalt Additives." Advances in Civil Engineering 2010 (2010): 1–10. http://dx.doi.org/10.1155/2010/329084.

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Aging is an important factor to affect the long-term performance of asphalt pavement. The fatigue life of a typical warm mix asphalt (WMA) is generally related to various factors of rheological and mechanical properties of the mixture. The study of the fatigue behavior of the specific rubberized WMA is helpful in recycling the scrap tires and saving energy in terms of the conventional laboratory aging process. This study explores the utilization of the conventional fatigue analysis approach in investigating the cumulative dissipated, stiffness, and fatigue life of rubberized asphalt concrete m

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Wang, Weiying, Songchang Huang, Yongchun Qin, Yiren Sun, Rui Dong, and Jingyun Chen. "Research on Rheological Properties of High-Percentage Artificial RAP Binder with WMA Additives." Advances in Materials Science and Engineering 2020 (August 6, 2020): 1–24. http://dx.doi.org/10.1155/2020/1238378.

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With the development of pavement recycling technology, the requirement of reclaimed asphalt pavement (RAP) is substantially increasing. Warm-mix recycled asphalt (WMRA) technology has made great progress, which can effectively decrease the working temperature and improve the RAP content. In this study, the rheological properties of recycled binders with incorporation of high-percentage artificial RAP binder (30–70%) were evaluated using two types of warm-mix asphalt (WMA) additives, i.e., polyethylene wax R and surfactant M. The dynamic shear rheometer (DSR) and beam bending rheometer (BBR) te

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Frigio, Francesca, Arianna Stimilli, Amedeo Virgili, and Francesco Canestrari. "Performance Assessment of Plant-Produced Warm Recycled Mixtures for Open-Graded Wearing Courses." Transportation Research Record: Journal of the Transportation Research Board 2633, no. 1 (2017): 16–24. http://dx.doi.org/10.3141/2633-04.

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Sustainable solutions, such as the combination of reclaimed asphalt pavement (RAP) as a partial substitution of virgin materials and warm-mix asphalt (WMA) additives to decrease production temperatures, represent the new research frontier in the asphalt industry. Specific investigations must evaluate the consequences of recycled WMA performance, especially in the case of open-graded (OG) mixtures, given that lower production temperatures can affect the adhesion properties and durability of those materials. This paper describes an experimental effort that involved OG mixtures produced in plant

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14

Stienss, Marcin, and Cezary Szydlowski. "Influence of Selected Warm Mix Asphalt Additives on Cracking Susceptibility of Asphalt Mixtures." Materials 13, no. 1 (2020): 202. http://dx.doi.org/10.3390/ma13010202.

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Warm mix asphalt (WMA) has been widely accepted as a future asphalt paving technology. Besides clear advantages, there are still some concerns regarding durability and long-term performance of pavements made with this type of asphalt mixtures. One of the most important issues is low temperature behaviour of WMA because certain additives used for temperature reduction can affect bitumen properties. This paper presents the evaluation of low-temperature properties of laboratory-produced asphalt concrete for wearing course with selected WMA additives. One type of bitumen with paving grade 50/70 an

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Ali Jattak, Zulfiqar, Norhidayah Abdul Hassan, Mohd Khairul Idham Mohd Satar, Ramadhansyah Putra Jaya, and ‪Mohd Rosli Hainin. "LABORATORY INVESTIGATION OF COAL BOTTOM ASH MODIFIED WARM MIX ASPHALT." Jurnal Teknologi 83, no. 4 (2021): 63–74. http://dx.doi.org/10.11113/jurnalteknologi.v83.16432.

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Bottom Ash (BA), a coal combustion by-product, found to be a potential material when used to produce asphalt mixture. However, some of its characteristics make it a questionable material for the surface course. Therefore, this study aims to evaluate the compatibility of BA in Warm Mix Asphalt (WMA) technology through the basic mechanical properties of the asphalt mixtures for binder course layer (AC 28). Two WMA chemical additives, Cecabase RT and Evotherm 3G, were used at the concentrations of 0.3, 0.4 and 0.5% from the binder's weight. The binder properties were assessed through penetration,

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Belc, Anda Ligia, Adrian Ciutina, Raluca Buzatu, Florin Belc, and Ciprian Costescu. "Environmental Impact Assessment of Different Warm Mix Asphalts." Sustainability 13, no. 21 (2021): 11869. http://dx.doi.org/10.3390/su132111869.

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Within the last decade, much attention has been focused on determining viable techniques for producing sustainable asphalt mixtures and minimizing fuel use and greenhouse gas emissions. Thus, warm mix asphalt (WMA) has become a topic of significant interest among road specialists as it offers a potential solution for reducing the environmental impact of the asphalt mixtures due to the decreased temperatures they require for mixing and compaction compared to hot mix asphalt (HMA). The present study is focused on the Life Cycle Assessment (LCA), according to a “Cradle-to-Gate” approach, of hot m

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Hu, Qisheng, Derun Zhang, and Peixin Xu. "Molecular Dynamics Investigation of the Diffusion Mechanisms and Thermodynamic Behaviors in Warm Mix Recycled Asphalt Binders with and Without Rejuvenators." Materials 18, no. 3 (2025): 703. https://doi.org/10.3390/ma18030703.

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In recent years, the employment of rejuvenators and warm mix asphalt (WMA) additives for reclaimed asphalt pavement (RAP) has been recognized as a popular approach to increase the recycling rate of waste materials and promote the sustainable development of pavement engineering. However, the composition of warm mix recycled asphalt binder is complicated, and the microstructural changes brought about by the rejuvenators and WMA additives are critical in determining its macroscopic mechanical properties. This research focuses on the atomic modeling of the rejuvenators and WMA additives diffusion

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Pang, Jiangbo, Yu Chen, Longfei Jing, Haoran Song, and Ziyang Liu. "Performance Evaluation of Warm-Mix Asphalt Binders with an Emphasis on Rutting and Intermediate-Temperature Cracking Resistance." Materials 18, no. 7 (2025): 1571. https://doi.org/10.3390/ma18071571.

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Warm-mix asphalt (WMA) technology is gaining popularity worldwide due to its benefits of considerable emissions reduction and energy savings when compared with hot-mix asphalt (HMA). Currently, there is a wide range of WMA products with considerable variability in the corresponding pavement performances. It has also been difficult to reach a unified conclusion regarding the effects of various WMA additives on asphalt binder properties. In this study, two categories of warm-mix additives, including six organic additives and three chemical additives, were evaluated in terms of their effects on a

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Ashok, Julaganti1 Rajan Choudhary2 *. S. S. Porwal3 Abhinay Kumar4. "EFFECT OF REDUCTION IN PRODUCTION TEMPERATURES ON PROPERTIES OF BITUMINOUS MIXES WITH AN ORGANIC WMA ADDITIVE." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 2 (2017): 433–42. https://doi.org/10.5281/zenodo.291866.

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Warm mix asphalt (WMA) refers to the group of technologies that allow a considerable decrease in production, placement and compaction temperatures of bituminous mixes through the addition of organic additives, chemical additives or foaming processes. The use of modified binders in the bituminous courses has become common practice to sustain the high vehicular traffic, climatic variations, and heavy axle loads. This paper presents properties of bituminous concrete (BC) mixes at different additive contents and production temperatures for two modified binders (polymer modified, PMB, and crumb rub

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Bueche, Nicolas, Samuel Probst, and Shahin Eskandarsefat. "Warm-Mix Asphalt Containing Reclaimed Asphalt Pavement: A Case Study in Switzerland." Infrastructures 9, no. 5 (2024): 79. http://dx.doi.org/10.3390/infrastructures9050079.

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Among the technologies proposed for achieving carbon neutralization in asphalt road pavements, warm-mix asphalt (WMA) has garnered increasing attention in recent years. While WMA holds the potential for various environmental and technical benefits, a comprehensive understanding of its implementation, technology selection, and additives is essential for successful application. This study presents a case where a bio-based chemical additive was employed to produce WMA containing 50% reclaimed asphalt pavement (RAP) for a surface course in Bern, Switzerland. To minimize additional variables during

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Raihan, Prodhan Md Safiq, Syed Nafiz Reja Hasib, and Moses Phiri. "Integration of Nano-Additives in Warm Mix Asphalt: Enhancing Moisture Resistance and Long-Term Durability." European Journal of Theoretical and Applied Sciences 2, no. 6 (2024): 451–61. https://doi.org/10.59324/ejtas.2024.2(6).39.

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Warm Mix Asphalt (WMA) has revolutionized the road construction industry by allowing asphalt production and placement at lower temperatures, resulting in reduced energy consumption and emissions. However, concerns regarding moisture susceptibility and long-term performance have limited its broader adoption. This paper reviews the application of nano-additives, such as nano-silica, nano-clay, and nano-titanium dioxide, in WMA to enhance its moisture resistance, mechanical properties, and durability. Current research demonstrates promising improvements in the performance of nano-modified WMA, bu

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Prodhan, Md Safiq Raihan, Nafiz Reja Hasib Syed, and Phiri Moses. "Integration of Nano-Additives in Warm Mix Asphalt: Enhancing Moisture Resistance and Long-Term Durability." European Journal of Theoretical and Applied Sciences 2, no. 6 (2024): 451–61. https://doi.org/10.59324/ejtas.2024.2(6).39.

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Warm Mix Asphalt (WMA) has revolutionized the road construction industry by allowing asphalt production and placement at lower temperatures, resulting in reduced energy consumption and emissions. However, concerns regarding moisture susceptibility and long-term performance have limited its broader adoption. This paper reviews the application of nano-additives, such as nano-silica, nano-clay, and nano-titanium dioxide, in WMA to enhance its moisture resistance, mechanical properties, and durability. Current research demonstrates promising improvements in the performance of nano-modified WMA, bu

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Zhao, Pinhui, Mingliang Dong, Yansheng Yang, et al. "Research on the Mechanism of Surfactant Warm Mix Asphalt Additive-Based on Molecular Dynamics Simulation." Coatings 11, no. 11 (2021): 1303. http://dx.doi.org/10.3390/coatings11111303.

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Warm mix asphalt (WMA) technology can bring certain environmental and technical benefits through reducing the temperature of production, paving, and compaction of mixture asphalt. Recent studies have shown that some WMA additives are able to reduce the temperature by increasing the lubricating properties of asphalt binder-based on the tribological theory, this paper studied the mechanism of adsorbing and lubricating film of base asphalt and WMA on the surface of stone by molecular dynamics (MD) simulation method, and the effect of surfactant WMA additive on the lubrication performance of the s

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Rodríguez-Alloza, A. M., and J. Gallego. "Volumetric characteristics and compactability of asphalt rubber mixtures with organic warm mix asphalt additives." Materiales de Construcción 67, no. 327 (2017): 123. http://dx.doi.org/10.3989/mc.2017.03616.

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Warm Mix Asphalt (WMA) refers to technologies that reduce manufacturing and compaction temperatures of asphalt mixtures allowing lower energy consumption and reducing greenhouse gas emissions from asphalt plants. These benefits, combined with the effective reuse of a solid waste product, make asphalt rubber (AR) mixtures with WMA additives an excellent environmentally-friendly material for road construction. The effect of WMA additives on rubberized mixtures has not yet been established in detail and the lower mixing/compaction temperatures of these mixtures may result in insufficient compacti

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Al-Jumaili, Mohammed Abbas, and Hamid Athab Al-Jameel. "INFLUENCE OF SELECTED ADDITIVES ON WARM ASPHALT MIXTURES PERFORMANCE." Kufa Journal of Engineering 6, no. 2 (2015): 49–62. http://dx.doi.org/10.30572/2018/kje/621145.

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Warm Mix Asphalt (WMA) is a technology that allows significant lowering of the mixing and compaction temperature of conventional Hot Mix Asphalt (HMA). This research presents the results of laboratory tests conducted to evaluate the properties and performance of warm mix asphalt. TheWMA has been prepared from two asphalt grades and one aggregate source with twoadditives (Aspha-min® and Sasobit®). The crumb rubber is also added to WMA which is prepared withAspha-min® and Sasobit® to evaluate effect of crumb rubber on WMA properties. The results of the study indicated that the two additives to t

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Obaid, Hayder Abbas, Tameem Mohammed Hashim, Ahmed Awad Matr Al-Abody, et al. "Properties of Modified Warm-Mix Asphalt Mixtures Containing Different Percentages of Reclaimed Asphalt Pavement." Energies 15, no. 20 (2022): 7813. http://dx.doi.org/10.3390/en15207813.

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The Rapid reduction of energy resources and the escalated effects of global warming have created a strong motivation to find some new techniques in the field of paving construction. Adopting new technologies, such as warm-mix asphalt (WMA) or the recycling process of asphalt can be very helpful for the economy and have a significant impact on the environmental footprint. Thus, this research aimed to study the mechanical and durable characteristics of modified WMA mixtures using (1.0%, 1.5%, and 2.0%) Sasobit REDUX®, (0.3%, 0.4%, and 0.5%) Aspha-Min®, and (0.07%, 0.1%, and 0.125) ZycoTherm® add

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Wang, Liming, Jinling Kang, Yibing Fan, Kun Ma, and Chun Gong. "Research on prediction of WMA mixing temperature or additive dosage using digital image recognition of coating rate." Materials Research Express 9, no. 4 (2022): 045101. http://dx.doi.org/10.1088/2053-1591/ac60e6.

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Abstract It is difficult to determine a reasonable mixing temperature for WMA based solely on the viscosity-temperature relationship of the binder, as is the case for HMA, and it is a more reasonable solution to determine the mixing temperature of WMA by the state of the mix. This paper proposes to use the coating rate as an index for determining the mixing temperature of WMA, to analyze the reliability and sensitivity of this index using a digital image recognition method, and to analyze the influence law of this method based on the coating rate recognition test. The study shows that: The pre

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Alavi, Mohammad Zia, Elie Y. Hajj, Andrew Hanz, and Hussain U. Bahia. "Evaluating Adhesion Properties and Moisture Damage Susceptibility of Warm-Mix Asphalts." Transportation Research Record: Journal of the Transportation Research Board 2295, no. 1 (2012): 44–53. http://dx.doi.org/10.3141/2295-06.

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Through development and evaluation of the warm-mix asphalt (WMA) mixture design process, increased moisture susceptibility has been cited as one of the potential critical failure modes for WMA. Reduced production temperatures can affect the drying of the aggregate before mixing, the development of adhesion at the asphalt–aggregate interface, and binder stiffness. The objective of this research is to identify the significance of these factors and to define their relative contribution to mixture resistance to moisture damage. To evaluate the contribution of asphalt binder–aggregate adhesion, the

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Zhu, Qi Yang, Yuan Zhuang, Guang Wei Hu, and Ye Mao Zhang. "Laboratory Investigation Effect of Warm Mix Additives on the Viscosity of SBS Modified Asphalt." Applied Mechanics and Materials 448-453 (October 2013): 1329–32. http://dx.doi.org/10.4028/www.scientific.net/amm.448-453.1329.

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Warm Mix Asphalt (WMA) technology has become increasingly popular in pavement construction because of its environmental benefits and its fine engineering properties. In order to optimize mixing performance of WMA, four kinds of warm mix additives used in China were evulated by viscosity testing. Thus, this paper is mainly to reduce bitumen viscosity, which in turn improves mix workability, produces fewer emissions, and generally creates better working conditions. Results identified that the Sasobit additive has a large viscosity reduction and has a fine workability, and is appropriate for pave

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Omrani, Hamed, Ali Reza Ghanizadeh, and Amin Tanakizadeh. "Effect of SBS Polymer and Anti-stripping Agents on the Moisture Susceptibility of Hot and Warm Mix Asphalt Mixtures." Civil Engineering Journal 3, no. 10 (2017): 987. http://dx.doi.org/10.28991/cej-030931.

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The primary objective of this study is exploring the moisture susceptibility of unmodified and SBS-modified hot and warm mix asphalt mixtures. To this end, two different WMA additives including Aspha-min and Sasobit were employed to fabricate WMA specimens. The moisture susceptibility of warm polymer modified asphalt (WPMA) mixes was evaluated using modified Lottman test at 25°C according to AASHTO standard (T 283). In addition, the effect of different percentages of hydrated lime (from 0% to 2%) and Zycosoil (from 0% to 0.1%) as anti-stripping additives on the moisture susceptibility of the m

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Alqahtani, Majed A., and Rabeea W. Bazuhair. "Effects of Rediset Additive on the Performance of WMA at Low, Intermediate, and High Temperatures." Sustainability 15, no. 6 (2023): 5471. http://dx.doi.org/10.3390/su15065471.

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Utilizing polymers with asphalt mixtures is one solution to improving the performance of asphalt mixtures. Warm mixed asphalt (WMA) technology has begun to be widely used; however, hot mixed asphalt (HMA) is the most common paving procedure worldwide. HMA has some side effects, such as increasing emissions of exhaust gases, which lead to environmental pollution and air pollution and increasing energy consumption. Thus, utilizing WMA would help to improve asphalt mixture performance, reduce mixing and paving temperatures, reduce CO2 emissions, and save energy. In this study, two WMA additives (

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Lushinga, Nonde, Liping Cao, Zejiao Dong, Chen Yang, and Cyriaque O. Assogba. "Performance Evaluation of Crumb Rubber Asphalt Modified with Silicone-Based Warm Mix Additives." Advances in Civil Engineering 2020 (September 30, 2020): 1–17. http://dx.doi.org/10.1155/2020/4840825.

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This research was conducted to elucidate better understanding of the performance of crumb rubber asphalt modified with silicone-based warm mix additives. Two different silicone-based warm mix asphalt (WMA) additives (herein Tego XP and Addibit) were used to prepare crumb rubber modified (CRM) warm mix asphalt binders. The viscosity of these CRM binders was measured at different temperatures and shearing rates. Furthermore, softening point and penetration tests, Multiple Stress Creep Recovery (MSCR), Time Sweep (TS), Atomic Force Microscopy (AFM), Frequency sweep (FS), and Fourier Transform Inf

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Shi, Jingtao, Weiyu Fan, Yi Lin, Pinhui Zhao, and Jian Ouyang. "Effects of Surfactant Warm-Mix Additives on the Rheological Properties of High-Viscosity Asphalt." Advances in Materials Science and Engineering 2020 (April 25, 2020): 1–11. http://dx.doi.org/10.1155/2020/6506938.

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In order to evaluate the possibility of the application of warm mixing technology in high-viscosity asphalt mixture, in this paper, the effects of surfactant warm-mix additives (WMAs) on physical and rheological properties of high-viscosity asphalt (HVA) which was prepared with self-developed SBS/C9 petroleum resin blends (SPR) modifier were measured. The results indicate that the addition of WMA can decrease the viscosity and softening point but improve the penetration and ductility of warm-mix HVA. With the increase of the content of WMA, the modulus, failure temperature, viscosity, and reco

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Almeida, Arminda, and Michela Sergio. "Evaluation of the Potential of Sasobit REDUX Additive to Lower Warm-Mix Asphalt Production Temperature." Materials 12, no. 8 (2019): 1285. http://dx.doi.org/10.3390/ma12081285.

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Environmental and health concerns have been increasing in the road construction industry. This industry has provided several techniques and a wide range of additives to lower the production temperatures of asphalt mixtures, generating, among others, a new mix type called warm-mix asphalt (WMA). This paper aims to evaluate the potential of the Sasobit REDUX additive to lower the production temperatures of WMA. This additive, which is an alternative to the well-known Sasobit, is completely soluble in bitumen at temperatures above 85 °C while the same temperature for the Sasobit is 115 °C. For th

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Ngurah Widyantara, I. Gusti, Latif Budi Suparma, and Imam Muthohar. "STABILITAS MARSHALL DAN KETAHANAN DEFORMASI WARM MIX ASPHALT MENGGUNAKAN ADITIF ZYCOTHERM." INERSIA: lNformasi dan Ekspose hasil Riset teknik SIpil dan Arsitektur 14, no. 1 (2018): 48–61. http://dx.doi.org/10.21831/inersia.v14i1.19494.

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ABSTRACTWarm Mix Asphalt (WMA) is produced at mixing temperatures between 20°C-40°C lower than Hot Mix Asphalt (HMA). Zycotherm added ingredients is one of the additives used in Warm Mix Asphalt. This study aims to assess Marshall stability and resistance to deformation by using asphalt type AC 60/70 ex Shell and Zycotherm additives on warm asphalt mixtures. In this study, the test was carried out on a layer of (AC-WC) to four mixed variations ie HMA-0, WMA-1, WMA-2, WMA-3 with 0% Zycotherm content; 0.10%; 0.15% and 0.20%. Mixed performance is measured by Marshall and Wheel Tracking Machine (W

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Milad, Abdalrhman, Ali Mohammed Babalghaith, Abdulnaser M. Al-Sabaeei, et al. "A Comparative Review of Hot and Warm Mix Asphalt Technologies from Environmental and Economic Perspectives: Towards a Sustainable Asphalt Pavement." International Journal of Environmental Research and Public Health 19, no. 22 (2022): 14863. http://dx.doi.org/10.3390/ijerph192214863.

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The environmental concerns of global warming and energy consumption are among the most severe issues and challenges facing human beings worldwide. Due to the relatively higher predicted temperatures (150–180 °C), the latest research on pavement energy consumption and carbon dioxide (CO2) emission assessment mentioned contributing to higher environmental burdens such as air pollution and global warming. However, warm-mix asphalt (WMA) was introduced by pavement researchers and the road construction industry instead of hot-mix asphalt (HMA) to reduce these environmental problems. This study aims

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NOOR, MOUTAZ ASMAEL. "Performance of Chemical WMA Mixtures – A review." International Journal of Advances in Scientific Research and Engineering (ijasre) 6, no. 1 (2020): 120–26. https://doi.org/10.31695/IJASRE.2020.33684.

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<em>In recent years, a new approach called WMA technology is developed, which include reduces binder viscosity and accordingly allows lower temperatures for</em> <em>mixing and compaction. This technology gives several benefits, such as reduce emission, less odor, and</em> <em>energy saving. This study gives a comprehensive review on the use of WMA with chemical technology.  In addition, give an introduction to use chemical additives into the bitumen, in order to understand the application of these additives, the problems, benefits and how they act are reviewed.</em>

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Ferrotti, Gilda. "Interlayer bonding properties of warm recycled asphalt pavements." European Transport/Trasporti Europei, no. 91 (February 2023): 1–10. http://dx.doi.org/10.48295/et.2023.91.2.

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The need for sustainable road infrastructures has led to great interest in Warm Mix Asphalt (WMA) technologies, which allow the production, lay-down and compaction of asphalt mixtures at reduced temperatures, about 40°C lower than traditional Hot Mix Asphalt (HMA). The use of WMA ensures lower emissions and is also beneficial in the recycling of Reclaimed Asphalt (RA) deriving from the milling of end-of-life pavements. One of the main concerns regarding WMA is the possible poor adhesion between the pavement layers that could be caused by the reduced working temperatures during the paving opera

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Miao, Sheng Jun, Pei Liang Li, Yuan Li, and Xiao Kang Liao. "Experiments and Study on Proportioning Design of SMA-13 Warm Mix Asphalt." Advanced Materials Research 197-198 (February 2011): 1032–37. http://dx.doi.org/10.4028/www.scientific.net/amr.197-198.1032.

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Materials, include polymer modified asphalt, coarse aggregate, fine aggregate, packing and lignin fiber, of SMA-13 Warm Mix Asphalt used in maintenance engineering of Jing-Shen expressway (K17-K22), were tested in quality. Based on different grading Marshall tests of stone matrix asphalt of HMA (no additive) and WMA (with additives), materials proportion, asphalt aggregate ratio and target densities of SMA-13 WMA were designed, which will be applied in expressway surface maintenance. Through rutting test, water immersion Marshall test, tensile strength ratio test, seepage test and other propor

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Zhang, Jiupeng, Guoqiang Liu, Li Xu, and Jianzhong Pei. "Effects of WMA Additive on the Rheological Properties of Asphalt Binder and High Temperature Performance Grade." Advances in Materials Science and Engineering 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/467891.

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Sasobit additives with different dosages were added into 70# and 90# virgin asphalt binders to prepare WMA binders. The rheological properties, includingG∗andδ, were measured by using DSR at the temperature ranging from 46°C to 70°C, and the effects of temperature, additive dosage and aging onG∗/sin⁡δ, critical temperature, and H-T PG were investigated. The results indicate that WMA additive improvesG∗but reducesδ, and the improvement on 70# virgin binder is more significant.G∗/sin⁡δexponentially decreases with the increasing temperature but linearly increases with the increasing additive dosa

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Bilema, Munder, Choon Wah Yuen, Mohammad Alharthai, Zaid Hazim Al-Saffar, Salam Ridha Oleiwi Aletba, and Nur Izzi Md Yusoff. "Influence of Warm Mix Asphalt Additives on the Physical Characteristics of Crumb Rubber Asphalt Binders." Applied Sciences 13, no. 18 (2023): 10337. http://dx.doi.org/10.3390/app131810337.

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This investigation is centered around the application of warm mix asphalt (WMA) technologies to address workability concerns linked to rubberized asphalt binders. The primary aim of incorporating crumb rubber (CR) and WMA additives is to establish a robust paving method that fosters energy conservation, efficient waste management, noise reduction, and improved overall performance. The current study aims to comprehensively characterize and differentiate the physical attributes of rubberized asphalt binders by employing three distinct WMA additives: Sasobit, Cecabase RT and Rediset WMX. These ad

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Hilal, Miami M., and Mohammed Y. Fattah. "Evaluation of Resilient Modulus and Rutting for Warm Asphalt Mixtures: A Local Study in Iraq." Applied Sciences 12, no. 24 (2022): 12841. http://dx.doi.org/10.3390/app122412841.

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Warm-Mix-Asphalt (WMA) allows aggregates to be coated with asphalt binder at a temperature lower than the Hot-Mix-Asphalt (HMA) temperatures by using additives that make the asphalt mixtures more workable and the asphalt binder viscosity reduced. Due to the cost and environmental advantages of WMA, it is now more frequently employed in the mixtures of asphalt pavement. WMA with two percentages of zeolite (0.3% and 0.5%) is used in this research. The optimum asphalt content of WMA mixtures has a lower value compared to the HMA mixture. According to Marshall Stability’s findings, the HMA has a h

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Chamoun, Zahi, Mena I. Souliman, Elie Y. Hajj, and Peter Sebaaly. "Evaluation of select warm mix additives with polymer and rubber modified asphalt mixtures." Canadian Journal of Civil Engineering 42, no. 6 (2015): 377–88. http://dx.doi.org/10.1139/cjce-2013-0512.

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Warm mix technologies are being increasingly investigated in an effort to conserve energy, reduce emissions, and extend paving season. Most of the laboratory research conducted to date on warm mix technologies has been concentrated on studying the impact of warm mix technologies on unmodified asphalt binders. This research effort evaluates the use of select warm mix additives with unmodified, polymer-modified, and terminal blend tire rubber asphalt mixtures from Nevada and California. The study evaluated two different warm mix asphalt (WMA) technologies: Sasobit and Advera. The experimental pr

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., Dheeraj Kumar N. "DENSITY AND COMPACTION CHARACTERISTICS OF WMA USING ADDITIVES." International Journal of Research in Engineering and Technology 03, no. 06 (2014): 603–7. http://dx.doi.org/10.15623/ijret.2014.0306112.

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Sharma, Ankit, Mohammad Shafi Mir, and Mohammad Adnan Farooq. "Performance of WMA additives under freeze–thaw action." Road Materials and Pavement Design 20, no. 6 (2018): 1468–80. http://dx.doi.org/10.1080/14680629.2018.1444668.

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Rezaeizadeh Herozi, Morteza, Wilfredo Valenzuela, Alireza Rezagholilou, Ali Rigabadi, and Hamid Nikraz. "New Models for the Properties of Warm Mix Asphalt with Sasobit." CivilEng 3, no. 2 (2022): 347–64. http://dx.doi.org/10.3390/civileng3020021.

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Warm Mix Asphalt (WMA) is a set of technologies that uses additives to reduce binder viscosity and increase mixture workability, which provides a complete coating of aggregates at lower temperatures around 100 °C to 130 °C. Organic wax or Sasobit is one of the additives that can be used for this purpose. It reduces the viscosity at the melting point of the wax, which allows the production of asphalt mixes at lower temperatures. This attempt proposes new relationships for elastic modulus, indirect tensile strength (in dry and wet conditions), dynamic modulus, fatigue, and rutting resistance of

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Kim, Hakseo, Soon-Jae Lee, and Serji N. Amirkhanian. "Effects of warm mix asphalt additives on performance properties of polymer modified asphalt binders." Canadian Journal of Civil Engineering 37, no. 1 (2010): 17–24. http://dx.doi.org/10.1139/l09-118.

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This study presents an experimental evaluation for the performance properties of polymer modified asphalt (PMA) binders containing warm mix asphalt (WMA) additives. The PMA binders with the additives were produced using two of the available warm asphalt processes (i.e., Aspha-min and Sasobit) and three PMA binders graded as performance grade (PG) 76-22. The warm PMA binders were artificially short-term and then long-term aged using the rolling thin film oven (RTFO) and pressure aging vessel (PAV) procedures. Superpave binder tests were carried out on the binders through the rotational viscomet

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Rezapour, Mahdi, and Shaun S. Wulff. "Rut Performance of In Situ Warm Mix Asphalt Overlays with Evotherm 3G in North Dakota." Journal of Engineering 2019 (April 17, 2019): 1–7. http://dx.doi.org/10.1155/2019/5719716.

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As warm mix asphalt (WMA) pavements afford compaction at temperatures several dozen degrees lower than hot mix asphalt (HMA), the rate of cooling drops dramatically allowing paving to continue into colder weather. For this study, field samples from the Valley City project were collected after being in service (aged) for three years. The historical weather data during study period, 2011-2014, indicates that the temperature in Valley City dropped up to −34°C in winter. Prior studies have noted the importance of studying the performance of asphalt in different environmental conditions, and with d

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Mahavir, Khombare Saurabh. "Study on Use of Various Type of Warm Mix Asphalt (WMA) Additive’s in Asphalt Binder." International Journal for Research in Applied Science and Engineering Technology 11, no. 6 (2023): 2479–89. http://dx.doi.org/10.22214/ijraset.2023.54051.

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Abstract: Recent years have seen a substantial increase in interest in warm mix asphalt (WMA) technology as a sustainable substitute for traditional hot mix asphalt (HMA) production. There are many benefits to adding warm mix asphalt additives to the asphalt binder, including less energy use, lower emissions, better workability, and longer pavement life. According to studies, the rheological and mechanical characteristics of the asphalt binder are significantly impacted by the use of warm mix asphalt additives. These additions often reduced the viscosity of the binder, improved workability, an

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Gallego, Juan, Ana María Rodríguez-Alloza, and Leticia Saiz-Rodríguez. "Evaluation of Warm Rubberized Stone Mastic Asphalt Mixtures through the Marshall and Gyratory Compactors." Materials 13, no. 2 (2020): 265. http://dx.doi.org/10.3390/ma13020265.

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Stone mastic asphalt (SMA) mixtures exhibit excellent behaviour; they are highly resistant to reflective cracking and permanent deformation, as well as providing the wearing surface with an optimal texture. However, the production and compaction temperatures are similar to conventional mixtures, which means that there is a significant consumption of energy, as well as greenhouse gas emissions. Warm mix asphalt (WMA) technology, which has been developed over the last few years, might allow lower temperatures without compromising the mechanical behaviour of the mixtures. Also, over the last few

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