Effect of polymer modified bitumen emulsion production method on the durability of recycled asphalt mixture in the presence of deicing agents

This paper presents the potential benefits of nanopolyacrylate (NPA) for the asphalt mixtures used on pavement. This research evaluates the resilient modulus performance of dense graded Superpave-designed HMA mix. Two different types of dense graded Superpave HMA mix were developed consists of unmodified bitumen mix (UMB) and nanopolyacrylate modified bitumen mix (NPMB). Nanopolyacrylate polymer modified bitumen was prepared from addition of 6 percent of NPA polymer into asphalt bitumen. Resilient modulus results from Resilient Modulus test were determined to evaluate the performance of these mixtures. Results showed that all the mixes passed the Superpave volumetric properties criteria which indicated that these mixtures were good with respect to durability and flexibility. The Resilient modulus result of NPMB demonstrates better resistance to rutting than those prepared using UMB mix. It was estimated that the average resilient modulus values for both UMB and NPMB mixtures are decreased by 80 percent when the test temperature increased from 25ºC to 40ºC. In conclusion, the addition of NPA to the binder has certainly improved the bitumen properties significantly and hence increase the resistant to rutting of the asphalt mixture.

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Low-temperature adhesion performance of polymer-modified Bitumen emulsion in chip seals using different SBR latexes

Petroleum Science and Technology ◽

10.1080/10916466.2016.1238932 ◽

2016 ◽

Vol 35 (1) ◽

pp. 59-65 ◽

Cited By ~ 11

Author(s):

Mohammad Abedini ◽

Abolfazl Hassani ◽

Mahmoud Reza Kaymanesh ◽

Ali Akbar Yousefi

Keyword(s):

Low Temperature ◽

Modified Bitumen ◽

Bitumen Emulsion ◽

Adhesion Performance ◽

Chip Seals ◽

Polymer Modified Bitumen

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EVALUATING POTENTIAL OF DIATOMITE AS ANTI-CLOGGING AGENT FOR POROUS ASPHALT MIXTURE

Jurnal Teknologi ◽

10.11113/jt.v78.9501 ◽

2016 ◽

Vol 78 (7-2) ◽

Cited By ~ 1

Author(s):

Nor Asniza Mohamed Abdullah ◽

Norhidayah Abdul Hassan ◽

Nurul Athma Mohd Shukry ◽

Mohd Zul Hanif Mahmud ◽

Ramadhansyah Putrajaya ◽

...

Keyword(s):

Resilient Modulus ◽

Asphalt Mixture ◽

Permeability Test ◽

Modified Bitumen ◽

Fixed Amount ◽

Aggregate Gradation ◽

Porous Asphalt ◽

Open Nature ◽

Permeability Rate ◽

Polymer Modified Bitumen

Clogging is a major problem that occurs throughout the service life of porous asphalt due to the open nature of the mixture itself. Diatomite with characteristic of abrasiveness and porous structure seems to have potential in order to remove the clogging materials that mainly consists of soils. This study aims to investigate the effects of diatomite as anti-clogging agent on the permeability rate and strength of porous asphalt. The porous asphalt samples were prepared using Malaysia aggregate gradation and polymer modified bitumen of PG76 was used as the binder. This study focuses on clay as the clogging material at different concentration. A fixed amount of 0.5 g/L diatomite was applied to the porous asphalt samples as an anti-clogging agent prior to clogging cycles. The permeability test and resilient modulus were then conducted at different clogging concentrations (0.5, 1.0, 1.5 g/L) and cycles, with and without diatomite. It was found that samples with diatomite have a higher permeability rate compared to those without any application of diatomite after a few clogging cycles. As the clogging cycles increase, the clogging materials have trapped and filled up the voids in the porous asphalt samples and increase the resilient modulus result.

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Utilization of Waste Plastics in Stone Mastic Asphalt for Infrastructural Applications

Materials Science Forum ◽

10.4028/www.scientific.net/msf.902.55 ◽

2017 ◽

Vol 902 ◽

pp. 55-59 ◽

Cited By ~ 2

Author(s):

S.F. Wong ◽

A.A. Htwe ◽

S.H. Oh ◽

T.Y. Leo ◽

J. Cheng ◽

...

Keyword(s):

Asphalt Mixture ◽

Waste Plastics ◽

Underground Construction ◽

Modified Bitumen ◽

Mastic Asphalt ◽

Stone Mastic Asphalt ◽

Polymer Modifier ◽

Marshall Stability ◽

Polymer Modified Bitumen ◽

Recycled Low Density Polyethylene

This paper reports an experimental study on the use of waste plastics in stone mastic asphalt (SMA) for infrastructural applications (e.g. roads, carparks and underground construction). The binders investigated were conventional bitumen, target bitumen (polymer modified bitumen) and waste plastics (recycled low-density polyethylene LDPE of 5 wt% and 10 wt% blends). The properties of bitumen were assessed based on its penetration value and softening point; while the performance of asphalt premix (or asphalt mixture) was evaluated based on its Marshall stability, flow and quotient. The asphalt mixture incorporating waste plastics (10 wt% LDPE blend) as polymer modifier could be a promising material for use in SMA for infrastructural applications.

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Bitumen Emulsion in Malaysia–A Conspectus

Jurnal Teknologi ◽

10.11113/jt.v65.2153 ◽

2013 ◽

Vol 65 (3) ◽

Cited By ~ 2

Author(s):

Haryati Yaacob ◽

Mohd. Rosli Hainin ◽

Md. Maniruzzaman A. Aziz ◽

Naqiuddin M. Warid ◽

Fung-Lung Chang ◽

...

Keyword(s):

Permanent Deformation ◽

Modified Bitumen ◽

Bitumen Emulsion ◽

Environmental Friendly ◽

Batch Plant ◽

Emulsifying Agent ◽

Line Plant ◽

Pavement Construction ◽

Slurry Seal ◽

Polymer Modified Bitumen

Bitumen emulsion is an important building material, especially in highway pavement construction. It is a mixture of bitumen (asphalt), water and emulsifying agent, dispersed in tiny particles in an aqueous medium. It is an important material widely used in the pavement construction ever since the first introduction in the year 1900’s. This paper aims to provide an overview and an understanding among the practitioners on the bitumen emulsion from the manufacturing process, naming and categorizing to its potential application. Bitumen emulsion can be manufactured in a batch plant or in-line plant. Being water based, it is capable to be applied under ambient temperature besides being more environmental friendly. Categorizing the bitumen emulsion is simple but the naming may differs slightly according to local specification. Continuous research also has end up in the modification of conventional bitumen emulsion using polymers to produce polymer modified bitumen (PMB) emulsion which decreases thermal susceptibility and permanent deformation (rutting). It has resulted in even wider application of bitumen emulsion as in microsurfacing, slurry seal and cape seal.

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