Determining Optimum Number of Gyrations for Porous Asphalt Mixtures Using Superpave Gyratory Compactor

Porous asphalt (PA) mixtures are more environmentally friendly but have lower durability than dense-graded mixtures. Additives can be incorporated into PA mixtures to enhance their mechanical strength; however, they may compromise the hydraulic characteristics, increase the total cost of pavement, and negatively affect the environment. In this paper, PA mixtures were produced with 5 different types of additives including 4 fibers and 1 filler. Their performances were compared with the reference mixtures containing virgin bitumen and polymer-modified bitumen. The performance of all mixes was assessed using: mechanical, hydraulic, economic, and environmental indicators. Then, the Delphi method was applied to compute the relative weights for the parameters in multi-criteria decision-making methods. Evaluation based on distance from average solution (EDAS), technique for order of the preference by similarity to ideal solution (TOPSIS), and weighted aggregated sum product assessment (WASPAS) were employed to rank the additives. According to the results obtained, aramid pulp displayed comparable and, for some parameters such as abrasion resistance, even better performance than polymer-modified bitumen, whereas cellulose fiber demonstrated the best performance regarding sustainability, due to economic and environmental benefits.

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Exploratory study of porous asphalt mixtures with additions of reclaimed tetra pak material

Construction and Building Materials ◽

10.1016/j.conbuildmat.2017.11.067 ◽

2018 ◽

Vol 160 ◽

pp. 233-239 ◽

Cited By ~ 15

Author(s):

Valerio C. Andrés-Valeri ◽

Javier Rodriguez-Torres ◽

Miguel A. Calzada-Perez ◽

Jorge Rodriguez-Hernandez

Keyword(s):

Exploratory Study ◽

Asphalt Mixtures ◽

Porous Asphalt ◽

Tetra Pak

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Estimating Results of a Proposed Simple Performance Test for Hot-Mix Asphalt from Superpave Gyratory Compactor Results

Transportation Research Record Journal of the Transportation Research Board ◽

10.1177/0361198105192900113 ◽

2005 ◽

Vol 1929 (1) ◽

pp. 104-113 ◽

Cited By ~ 7

Author(s):

Ahmed F. Faheem ◽

Hussain U. Bahia ◽

Hossein Ajideh

Keyword(s):

Performance Test ◽

Test Procedure ◽

Asphalt Mixtures ◽

Strongly Correlated ◽

Flow Number ◽

Traffic Loading ◽

Superpave Gyratory Compactor ◽

The Stability ◽

Work Done ◽

Pavement Service Life

This study intended to use the Superpave® gyratory compactor (SGC) as a basis for estimating the stability of asphalt mixtures as a surrogate for proposed method for the simple performance test. Several asphalt mixtures were produced with varying aggregate sources, asphalt contents, and gradations. Every mixture was compacted with the SGC and evaluated with the repeated compression test procedure for rutting measurements recommended by NCHRP Project 9–19 and the AASHTO 2002 pavement design manual to evaluate whether the results from the SGC can be related to the rutting of mixtures. Densification curves produced by the SGC were used to determine the volumetric properties besides the calculation of the traffic densification index (TDI), which represents the densification experienced by traffic loading during pavement service life. The traffic force index (TFI) was also calculated with a special accessory added to the SGC during compaction (the pressure distributor analyzer). The TFI represents the work done by the traffic to densify the mixture. Results from the mixture rutting tests were used to estimate the flow number (FN). The FN, an important mixture property, is shown to have a strong correlation to the TFI. The TFI was also found to be strongly correlated with the TDI and gives an opportunity to estimate the mixture resistance to compaction forces with the use of its volumetric behavior. The main finding of the study is that the SGC appears to give information that can be used to characterize the stability of the mixtures. Such information could be used as an initial screening criterion to select mixtures for various traffic levels.

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LABORATORY EVALUATION ON THE EFFECT OF CLOGGING ON PERMEABILITY OF POROUS ASPHALT MIXTURES

Jurnal Teknologi ◽

10.11113/jt.v76.5846 ◽

2015 ◽

Vol 76 (14) ◽

Author(s):

Norhidayah Abdul Hassan ◽

Nor Asniza Mohamed Abdullah ◽

Nurul Athma Mohd Shukry ◽

Mohd Zul Hanif Mahmud ◽

Nur Zurairahetty Mohd Yunus ◽

...

Keyword(s):

Asphalt Mixture ◽

Residential Area ◽

Liquid Limit ◽

Asphalt Mixtures ◽

Public Works ◽

Storm Water ◽

Laboratory Evaluation ◽

Aggregate Gradation ◽

Porous Asphalt ◽

The One

Porous asphalt mixture is one of the alternative solutions to increase pervious surface area due to urbanization. The uniqueness of porous asphalt surface textures and internal structures allows the mixture to become a temporary storm-water retention and capable to channel excessive storm water. However, one of the major problems that affect the performance of porous asphalt mixtures is the clogging. Therefore, this study aims to determine the effect of clogging towards the permeability of porous asphalt. A total of 30 gyratory compacted samples were fabricated according to aggregate gradation recommended by Malaysia Public Works Department. The clogging materials were collected from two different location, residential area and major highway. The composition and characteristics of the clogging materials were investigated using Plastic Limit, Liquid Limit and Scanning Electron Microscope (SEM). The permeability test was conducted to investigate the permeability rate of the compacted samples based on different clogging material types, clogging concentrations and clogging cycles. In addition, the compacted samples were scanned using X-ray Computed Tomography to obtain the air voids distribution throughout the samples for comparison. It was found that higher concentration of clogging materials and clogging cycles reduced the rate of permeability. Clogging material collected from residential area has higher tendency to clog the void spaces compared to the one obtained from highway.

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Characteristics of waste tire rubber (WTR) and amorphous poly alpha olefin (APAO) compound modified porous asphalt mixtures

Construction and Building Materials ◽

10.1016/j.conbuildmat.2020.119071 ◽

2020 ◽

Vol 253 ◽

pp. 119071 ◽

Cited By ~ 4

Author(s):

Kezhen Yan ◽

Hao Sun ◽

Lingyun You ◽

Shenghua Wu

Keyword(s):

Asphalt Mixtures ◽

Tire Rubber ◽

Porous Asphalt ◽

Waste Tire ◽

Alpha Olefin ◽

Waste Tire Rubber

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Performance and Durability of Porous Asphalt Mixtures Manufactured Exclusively with Electric Steel Slags

Materials ◽

10.3390/ma12203306 ◽

2019 ◽

Vol 12 (20) ◽

pp. 3306 ◽

Cited By ~ 11

Author(s):

Marta Skaf ◽

Emiliano Pasquini ◽

Víctor Revilla-Cuesta ◽

Vanesa Ortega-López

Keyword(s):

Mechanical Performance ◽

Asphalt Mixture ◽

Asphalt Mixtures ◽

Electric Steelmaking ◽

Porous Asphalt ◽

Bituminous Mixtures ◽

Abrasion Loss ◽

Water Sensitivity ◽

Electric Arc Furnace Slag ◽

Furnace Slag

Electric arc furnace slag (EAFS) and ladle furnace slag (LFS) are by-products of the electric steelmaking sector with suitable properties for use in bituminous mixtures as both coarse and fine aggregates, respectively. In this research, the production of a porous asphalt mixture with an aggregate skeleton consisting exclusively of electric steelmaking slags (using neither natural aggregates nor fillers) is explored. The test program examines the asphalt mixtures in terms of their mechanical performance (abrasion loss and indirect tensile strength), durability (cold abrasion loss, aging, and long-term behavior), water sensitivity, skid and rutting resistance, and permeability. The results of the slag-mixes are compared with a standard mix, manufactured with siliceous aggregates and cement as filler. The porous mixes manufactured with the slags provided similar results to the conventional standard mixtures. Some issues were noted in relation to compaction difficulties and the higher void contents of the slag mixtures, which reduced their resistance to raveling. Other features linked to permeability and skid resistance were largely improved, suggesting that these mixtures are especially suitable for permeable pavements in rainy regions. In conclusion, a porous asphalt mixture was produced with 100% slag aggregates that met current standards for long-lasting and environmentally friendly mixtures.

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