A Review of Warm Mix Asphalt Technology: Technical, Eco-nomical and Enviromental Aspects

Quintana, Hugo Alexánder Rondón; Hernández-Noguera, Jesús A.; Reyes, Francisco

doi:10.15446/ing.investig.v35n3.50463

Cited by 21 publications

(5 citation statements)

References 132 publications

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“…In marketable uses in Europe, South Africa, Asia and the United States, sasobit has been mixed directly with the aggregate as melted liquid, through a dosing meter or solid prills (small pellets). Marshall tests executed on blends fashioned in this way signposted no variance in flow or stability values as associated to premixing with the binder [5].…”

Section: Introductionmentioning

confidence: 89%

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Effect of Increasing Sasobit on Permanent Deformation and Moisture Damage of Asphalt Mixes

Haq

Hussain

Mushtaq

2018

AMM

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Transportation network plays a substantial role in the everyday life of social beings. The preservation of this vast infrastructure needs appropriate and cost-effective design techniques, which depends upon the selection and proportion of binder and aggregate. With the passage of time, as compared to HMA (Hot Mix Asphalt), WMA (Warm mix asphalt) has become extreme prevalent in the road construction industry, because WMA offers the opportunity of production asphalt mix at a reduced temperature than conventionally used for HMA, hence saving energy, cutting CO2 emission and improve environmental quality. This study aims to assess the impact of sasobit (an organic WMA additive) on permanent deformation and moisture susceptibility of asphalt mixes. Under the scope of this paper, the authors have added three percentages of sasobit that is 1%, 2% and 3% to check the effect of increasing sasobit percentage on rutting and moisture damage of asphalt mixes. In summary, rut depth of WMA as obtained from Hamburg Wheel Tracker Device (HWTD) slightly decreased from that of HMA, while rut depth at 1% and 2% was even less than that of 3% sasobit. A slight increase in moisture damage as compared to control mix was observed by adding sasobit, as illustrated by decreased Tensile Strength Ratios TSR.

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Section: Introductionmentioning

confidence: 89%

“…The results of performance tests are given in Table4, while the related graphs are shown in Fig [3],[4]. &[5].…”

mentioning

confidence: 99%

Effect of Increasing Sasobit on Permanent Deformation and Moisture Damage of Asphalt Mixes

Haq

Hussain

Mushtaq

2018

AMM

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“…To produce one tonne of HMA a general value of the energy used of 340 MJ was considered according to similar research made by Zaumanis et al [15]. Regarding the energy consumed for the production of WMA, the literature mentions a reduction of 10-30% compared to the HMA [3,15,42]. Thus, in this study it was considered a reduced value with 20% compared to the value considered for the HMA, i.e., 270 MJ for all technologies for obtaining WMA.…”

Section: Inventorymentioning

confidence: 99%

Environmental Impact Assessment of Different Warm Mix Asphalts

et al. 2021

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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 mix asphalt and warm mix asphalt prepared with locally available materials and different warm mix additives such as organic additives, chemical additive, and synthetic zeolite. For the analysis of the environmental impact of the warm mix asphalts was used a dedicated software for modeling and evaluating the LCA. The WMA prepared with chemical additive or organic additive led to a decrease of the environmental impact, in the production phase, compared to HMA. The study reveals that the raw materials extraction has the greatest impact on the environment in all studied cases, followed by the actual production phase of the asphalt mixture. For WMA produced with additives there was a decrease in the global impact on the environment compared to HMA.

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“…According to Sterling (2012), Silva, Oliveira & Ferreira (2010) and , the minimum reduction of the manufacturing temperature, with respect to traditional mixtures of asphalt concrete in the asphalt plant, should be of 28 ° C, 40 ° C and 25 ° C respectively to be called warm mix asphalt (WMA). This reduces the energy required for the manufacture of asphalt mixtures and polluting emissions into the atmosphere (You & Goh, 2008, Bonaquist, 2011, Mohammad et al 2015, helps reduce wear and tear of asphalt plants (Biro, Gandhi & Amirkhanian, 2009) and decreases the aging of asphalt (Ran et al, 2010;Rondón, Noguera & Reyes, 2015). Other advantages reported with the use of WMA are: a) they allow their extension and compaction in colder environments (Ran et al, 2010); b) can be used to produce mixtures where the viscosity of the asphalt binder needs to be decreased, for example in asphalt mixtures modified with elastomeric or plastomeric polymers (Liu, Cao & Fang, 2010, Habal & Singh, 2017, Singh et al, 2018 , recycled RAP type -Reclaimed Asphalt Pavement (Howard, Doyle & Cox, 2013;Zhao et al, 2015;Kim et al, 2017; or porous (Frigio et al, 2016); c) the WMA allow to be transported greater distances before being extended and compacted (Robjent & Dosh, 2009).…”

Section: Warm MIX Asphaltmentioning

confidence: 99%

“…The WMA can be manufactured by modifying the asphalt or asphalt mix with an additive such as Cecabase, Rediset or Sasobit, among others. They can also be manufactured using asphalt emulsions or foaming asphalt (Zhu, Chen & Yin, 2017), either with a chemical additive or using special techniques such as WAM-Foam® (Rondón et al, 2015).…”

Section: Warm MIX Asphaltmentioning

confidence: 99%

Evaluation of a Warm Mix Asphalt Manufactured with Blast Furnace Slag

Quintana¹,

Chaves-Pabón²,

Escobar³

2018

MAS

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The study evaluated the response under monotonic loading (Marshall and indirect traction) and the resistance to moisture damage and abrasion of a warm mix asphalt (WMA) manufactured with an additive called HUSIL, when the coarse fraction of the aggregate was replaced by a blast furnace slag (BFS). In conclusion, it is reported that the additive is capable of reducing the manufacturing temperature of the asphalt mixture by 30 ° C. Additionally, the BFS can be used as a partial substitute for the coarse fraction of aggregates in WMA, since when replacing it in 21%, the mixture reach a significant increase in stiffness, resistance to moisture damage, and similar resistance to abrasion with respect to the control asphalt mixture.

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A Review of Warm Mix Asphalt Technology: Technical, Eco-nomical and Enviromental Aspects

Cited by 21 publications

References 132 publications

Effect of Increasing Sasobit on Permanent Deformation and Moisture Damage of Asphalt Mixes

Effect of Increasing Sasobit on Permanent Deformation and Moisture Damage of Asphalt Mixes

Environmental Impact Assessment of Different Warm Mix Asphalts

Evaluation of a Warm Mix Asphalt Manufactured with Blast Furnace Slag

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