Effect of bio-rejuvenator on recycled porous asphalt mixes

2021 ◽  
pp. 1-27
Author(s):  
I. Holleran ◽  
D. J. Wilson ◽  
E. Masad ◽  
G. Holleran ◽  
E. Alrashydah
Keyword(s):  
Asphalt Mixes ◽  
Porous Asphalt

scholarly journals Mechanical characterization of porous asphalt mixes modifying the asphalt with fatty acid amides -FAA-

2017 ◽  
Vol 37 (1) ◽  
pp. 43 ◽  
Author(s):  
Vanessa Senior Arrieta ◽  
Jorge Eliecer Córdoba Maquilon
Keyword(s):  
Fatty Acid ◽  
Mechanical Characterization ◽  
Experimental Methodology ◽  
Chemical Additives ◽  
Asphalt Mixes ◽  
Porous Asphalt ◽  
Fatty Acid Amides ◽  
Pavement Structures ◽  
And Performance

Porous asphalt mixes (PAM), form a special road surface for asphalt pavement structures, have a special particle size distribution that lets infiltrate to the runoff storm water through of it because of its voids content about 20 %. Many researchers conducted studies and have concluded that the use of modified asphalts is completely necessary to design PAM. Organic and chemical additives and special procedures as foamed asphalt have enhanced the performance of PAM, during their service life. This paper is focused on the mechanical characterization of PAM and how the asphalt modified with fatty acid amides, influenced on their behavior and performance. Based on an experimental methodology with laboratory tests aimed at establishing a comparison between porous asphalt mixes, using for its design and production a penetration 60-70 pure asphalt and another one asphalt modified with fatty acid amides.

A Comparative Study on Performance of Malaysian Porous Asphalt Mixes Incorporating Conventional and Modified Binders

2010 ◽  
Vol 10 (20) ◽  
pp. 2403-2410 ◽  
Author(s):  
M.O. Hamzah ◽  
M.R.M. Hasan ◽  
C.N. Che Wan ◽  
N.H. Abdullah
Keyword(s):  
Comparative Study ◽  
Asphalt Mixes ◽  
Porous Asphalt ◽  
Modified Binders

Laboratory Measurements and Analysis of Clogging Mechanism of Porous Asphalt Mixes

2000 ◽  
Vol 28 (3) ◽  
pp. 207 ◽  
Author(s):  
DR Petersen ◽  
RE Link ◽  
SA Tan ◽  
TF Fwa ◽  
VYK Guwe
Keyword(s):  
Laboratory Measurements ◽  
Asphalt Mixes ◽  
Porous Asphalt

scholarly journals Effect of stone-on-stone contact on porous asphalt mixes: micromechanical analysis

2019 ◽  
Vol 21 (8) ◽  
pp. 990-1001 ◽  
Author(s):  
H. Zhang ◽  
K. Anupam ◽  
A. Scarpas ◽  
C. Kasbergen ◽  
Sandra Erkens
Keyword(s):  
Asphalt Mixes ◽  
Porous Asphalt ◽  
Micromechanical Analysis

Automatic Field Permeameter for Drainage Properties of Porous Asphalt Mixes

1999 ◽  
Vol 27 (1) ◽  
pp. 57 ◽  
Author(s):  
DR Petersen ◽  
RE Link ◽  
SA Tan ◽  
TF Fwa ◽  
CT Chuai
Keyword(s):  
Asphalt Mixes ◽  
Porous Asphalt

Application of Large-Stone Asphalt Mixes in the Base Course Maintenance of Expressway

2010 ◽  
Vol 168-170 ◽  
pp. 1189-1192
Author(s):  
Hui Min Hu ◽  
Yong Yao Tong ◽  
Wang Li Zhang
Keyword(s):  
Maximum Shear Stress ◽  
Good Effect ◽  
Rigid Base ◽  
Asphalt Mixes ◽  
Porous Asphalt ◽  
Large Stone ◽  
Base Course ◽  
Longitudinal Cracks ◽  
Structural Layer

Large stone porous asphalt mixes have well drainage ability, as well as higher modulus and durability when used as base course. Large stone porous asphalt mixes have good effect on repairing the semi-rigid base course which have longitudinal cracks. It not only can delay the reflection of cracks, but also plays the role of excluding water in structural layer owing to relatively large porosity. Deflection value of upper base's top surface decreases and deflection difference between left and right wheel track reduces after paving large-stone asphalt mixes upper base. When there are longitudinal cracks in lower base course, top surface tensile stress of upper base(large-stone asphalt mixes flexible upper base course)has significantly reduced compared with semi-rigid base course upper base. And maximum shear stress declined slightly. It can play a very well crack resistance effect when using large-stone asphalt mixes to repair broken cement stability upper base.

A Comparative Study of Anti-Stripping Additives in Porous Asphalt Mixtures

2014 ◽  
Vol 70 (7) ◽  
Author(s):  
Mohamad Yusri Aman ◽  
Zulkurnain Shahadan ◽  
Mohd Zaime Mat Noh
Keyword(s):  
Asphalt Mixtures ◽  
Cohesive Failure ◽  
Moisture Sensitivity ◽  
Asphalt Mixes ◽  
Air Voids ◽  
Porous Asphalt ◽  
Coefficient Of Permeability ◽  
Indirect Tensile ◽  
Aashto T283 ◽  
Quarry Dust

Presence of water in porous asphalt mixtures detrimentally affected the bonding between binder-aggregate interface and cohesive failure within the binder-filler mastic, making them prone to stripping which contribute to the performance and durability. This paper presents the effect of anti-stripping additives in porous asphalt mixes. In this study, the Marshall specimens were prepared using quarry dust, ordinary Portland Cement (OPC) and Pavement Modifier (PMD) as filler then mixed with 60/70 penetration grade bitumen. The specimens were measured for air voids content and coefficient of permeability and subsequently tested using indirect tensile and Cantabro tests. The moisture sensitivity of porous asphalt was determined based on the ratio of dry and conditioned specimens according to AASHTO T283. The specimens prepared with PMD showed lower air voids content, hence decrease the permeability to give a higher tensile strength and lower abrasion loss compared to specimens prepared with OPC and quarry dust. Based on the results, the PMD filler has a great potential to improve resistance to moisture damage compared to mixes with OPC and specimens prepared with quarry dust fillers.

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