Warm Mix Asphalt Technology: A Review

Abdullah, Mohd Ezree; Zamhari, Kemas Ahmad; Buhari, Rosnawati; Bakar, Siti Khatijah Abu; Kamaruddin, Nurul Hidayah Mohd; Nayan, Nafarizal; Hainin, Mohd Rosli; Hassan, Norhidayah Abdul; Hassan, Sitti Asmah; Yusoff, Nur Izzi Md.

doi:10.11113/jt.v71.3757

Cited by 25 publications

(17 citation statements)

References 47 publications

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“…Besides, several researchers have used approximately 165°C for production and 155°C for compaction. These temperatures were obtained from the viscosities of the asphalt binder at 135°C [2][3].…”

Section: Introductionmentioning

confidence: 99%

Permanent deformation of dry and wet asphalt mixture contained crystalline waterproofing additives

Buhari

Suhaimi

2022

IOP Conf. Ser.: Earth Environ. Sci.

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This study was conducted to investigate rutting performance of asphalt mixture containing few percent of CWA as an additive. In total, four different asphalt mixture containing 0%, 50%, 75% and 100% crystalline waterproofing additive (CWA) replacement from the total weight of filler were tested. The asphalt mixture NMAS 12.5 were prepared based on Superpave mixture design method. The rut depths of dry and wet asphalt mixture samples were measured using wheel tracking test machine and compare with control samples. The result show that rut depth of wet asphalt mixture containing 100% CWA is the lowest compare to other samples. In conclusion, replaced the asphalt mixture filler with CWA can improve it resistance to rutting compare to control sample.

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Section: Introductionmentioning

confidence: 99%

Permanent deformation of dry and wet asphalt mixture contained crystalline waterproofing additives

Buhari

Suhaimi

2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…The warm mix exhibits lower viscosity and thus lower resistance to compaction. After compaction, a curing period is required to allow the remaining volatiles of liquid asphalt to evaporate, [1]. The low viscosity of liquid asphalt will furnish the required perfect coating of aggregates and the workability for compaction, while the curing period will provide the increment in mechanical strength, and durability during traffic exposure, [6] and [16].…”

Section: Introductionmentioning

confidence: 99%

Variation of Asphalt Requirement and Strength Properties among Hot Mix (HMA) and Warm Mix (WMA) Asphalt Concrete

Nihad

Sarsam

2020

JAARU

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Due to the restrictions for protecting the environment, and the requirements to reduce fuel consumption, research work was started globally for verifying the possibility of implementation of warm mix asphalt (WMA) in pavement construction. Warm mix asphalt enables the production and compaction of asphalt concrete mixtures at temperatures (20-30 °C) lower than that of traditional hot mix asphalt (HMA). In this investigation, two WMA mixtures have been prepared in the laboratory using medium curing cutback (MC-30) and Cationic emulsion. HMA mixture was also prepared for comparison. Marshall specimens of (101.6 mm) in diameter and (63.5 mm) in height were constructed form the mixtures and subjected to indirect tensile strength (ITS) test, Marshall Stability, flow and volumetric properties determination. Test results were analyzed and compared. It was concluded that the stability of WMA is higher than HMA by 17 % and 47.87 % for (cutback and emulsified asphalt) WMA respectively, while the WMA exhibit lower flow than HMA by 34.67 % and 1.33 % when using (cutback and emulsion) WMA respectively. The optimum asphalt content was (20.69 and 32.35) % higher for (cutback and emulsion) WMA than that of HMA. The (ITS) at 25 ⁰C decreases by (28.58 and 4.51) % when the asphalt content increased and decreased by 0.5 % from optimum asphalt content (OAC) for WMA- emulsion asphalt.

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“…Although the geotechnical compactions can be used as references for the compaction of asphalt pavement, there are still great differences because of the structural and performance requirements [28,29]. From 2004, the Federal Highway Administration (FHWA), a USDOT agency, supported the "Intelligent Compaction Research Program" [30]. With the application of computer system, vehicle sensors, positioning system, and monitoring software, compaction detection systems were researched for the compaction of soil and asphalt mixture, and relevant specifications were developed.…”

Section: Introductionmentioning

confidence: 99%

An Improved Low‐Cost Continuous Compaction Detection Method for the Construction of Asphalt Pavement

Jia

Qian

et al. 2019

Advances in Civil Engineering

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To realize the continuous compaction control (CCC) of asphalt pavement during construction, continuous detection method was investigated for the compaction degree values. For the trajectory of rollers, a collaborative positioning method was proposed. For the monitoring of rolling process, an embedded-based detection system was designed. For the evaluation of rolling effect, harmonic analysis was introduced and a new index, vibration compaction energy value (VCVe), was proposed. Positioning experiments were conducted, and the accuracy was improved to 0.48 m. Rolling tests were performed, and typical compaction meter values (CMVs), compaction control values (CCVs), and VCVe were obtained. The referenced compaction degree by conventional way was 94.6%, which was used to calibrate the detected values of compaction degree indexes. The results showed that continuous compaction detection can be achieved based on positioning system and vibration analysis. Compared with CMV and CCV, VCVe is less discrete, more stable, and consistent to describe the compaction state. Though, all the CMV, CCV, and VCVe indexes are unable to be used for quality assurance directly or alone, they could be an aid for quality control. Continuous compaction detection system meets the monitoring requirements of pavement construction at a lower cost and could lay a foundation for the intelligent compaction (IC).

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Warm Mix Asphalt Technology: A Review

Cited by 25 publications

References 47 publications

Permanent deformation of dry and wet asphalt mixture contained crystalline waterproofing additives

Permanent deformation of dry and wet asphalt mixture contained crystalline waterproofing additives

Variation of Asphalt Requirement and Strength Properties among Hot Mix (HMA) and Warm Mix (WMA) Asphalt Concrete

An Improved Low‐Cost Continuous Compaction Detection Method for the Construction of Asphalt Pavement

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