scholarly journals Numerical and Experimental Investigation on the Modified of Hot Mix Asphalt Concrete Containing Crumb Rubber and Waste Pet

2020 ◽  
Vol 27 (4) ◽  
Keyword(s):  
Experimental Investigation ◽  
Asphalt Concrete ◽  
Hot Mix Asphalt ◽  
Crumb Rubber

Arkansas Experience with Crumb Rubber Modified Mixes Using Marshall and Strategic Highway Research Program Level I Design Methods

1996 ◽  
Vol 1530 (1) ◽  
pp. 25-33 ◽  
Author(s):  
Gary V. Gowda ◽  
Kevin D. Hall ◽  
Robert P. Elliott
Keyword(s):  
Asphalt Concrete ◽  
Hot Mix Asphalt ◽  
Heavy Traffic ◽  
Percent Level ◽  
Crumb Rubber ◽  
Aggregate Gradation ◽  
Dry Process ◽  
Wet Process ◽  
Asphalt Rubber ◽  
Level I

Unmodified and crumb rubber modified mixes conforming to the Arkansas State Highway and Transportation Department Type II surface course specifications were designed for heavy traffic conditions and environmental conditions typical to Arkansas by using the Marshall and Superpave Level I methods. Specimens prepared at appropriate design asphalt contents were evaluated for both volumetric and performance considerations. Three mix types, an unmodified hot-mix asphalt concrete, a dry process rubber modified asphalt, and a wet process asphalt rubber, were included in the investigation. For the asphalt cement, crumb rubber, aggregate type, and aggregate gradation used, the design asphalt content and the VMA were reduced for the SHRP Level I method relative to the Marshall method. Incorporation of crumb rubber into hot-mix asphalt concrete provided increased rutting resistance; however, the rubber modified mixes did not show enhanced resilient and tensile properties when tested at 25°C. Also, the performance-related properties of the SHRP Level I asphalt-rubber mixes (5, 10, and 15 percent A-R blends) evaluated did not differ significantly at 5 percent level of significance.

Influence of Void in Mix on Rutting Performance Hot Mix Asphalt Pavement with Crumb Rubber Additive

2017 ◽  
Vol 753 ◽  
pp. 321-325 ◽  
Author(s):  
Rerhard Halomoan Limbong ◽  
Sigit Pranowo Hadiwardoyo ◽  
Raden Jachrizal Sumabrata ◽  
Raden Hendra Ariyapijati
Keyword(s):  
Asphalt Concrete ◽  
Hot Mix Asphalt ◽  
Asphalt Mixture ◽  
Crumb Rubber ◽  
Tropical Regions ◽  
Vehicle Loads ◽  
Wheel Loading ◽  
Pavement Construction ◽  
Additive Materials ◽  
Marshall Stability

Pavement construction is expected to support vehicle loads and be weather- and water-resistant. In tropical regions with high temperatures and high rainfall intensity, pavement design and construction must consider the effects of temperature. The addition of crumb rubber (CR) can improve the performance of asphalt concrete in response to vehicle loads and ambient temperature. Fiber-shaped CR can be mixed with the aggregate and bitumen in asphalt concrete. In this study, CR was added to the aggregate in a type of asphalt concrete for wearing courses known as hot mix asphalt (HMA). A series of tests were conducted using the Marshall standard or immersion and wheel tracking machine (WTM). CR was added to the HMA at 5%, 10%, 15%, and 20% in aggregate and further mixed with bitumen with 60/70 penetration grade. The additive materials increased the value of the Marshall stability compared to the virgin asphalt mixture. However, this result was not obtained in the WTM test; the addition of CR increased rutting compared to the asphalt mixture without additive. The addition of CR to HMA reduced the voids in the mix, and weakened the capacity of the asphalt concrete to support repeated vehicle wheel loading.

Experimental Investigation of aluminum doping crumb rubber/epoxy composite in reciprocating motion

2015 ◽  
Vol 3 ◽  
pp. 1
Author(s):  
Goutam Chandra Karar ◽  
Nipu Modak
Keyword(s):  
Experimental Investigation ◽  
Coefficient Of Friction ◽  
Epoxy Composite ◽  
Normal Load ◽  
Crumb Rubber ◽  
The Other ◽  
Reciprocating Motion ◽  
Molding Process ◽  
Friction Tester ◽  
The Coefficient Of Friction

The experimental investigation of reciprocating motion between the aluminum doped crumb rubber /epoxy composite and the steel ball has been carried out under Reciprocating Friction Tester, TR-282 to study the wear and coefficient of frictions using different normal loads (0.4Kg, 0.7Kgand1Kg), differentfrequencies (10Hz, 25Hz and 40Hz).The wear is a function of normal load, reciprocating frequency, reciprocating duration and the composition of the material. The percentage of aluminum presents in the composite changesbut the other components remain the same.The four types of composites are fabricated by compression molding process having 0%, 10%, 20% and 30% Al. The effect of different parameters such as normal load, reciprocating frequency and percentage of aluminum has been studied. It is observed that the wear and coefficient of friction is influenced by the parameters. The tendency of wear goes on decreasing with the increase of normal load and it is minimum for a composite having 10%aluminum at a normal load of 0.7Kg and then goes on increasing at higher loads for all types of composite due to the adhesive nature of the composite. The coefficient of friction goes on decreasing with increasing normal loads due to the formation of thin film as an effect of heat generation with normal load.

Microstructure analysis and mechanical performance of crumb rubber modified asphalt concrete using the dry process

2020 ◽  
Vol 259 ◽  
pp. 119662 ◽  
Author(s):  
Israel Rodríguez-Fernández ◽  
Farrokh Tarpoudi Baheri ◽  
Maria Chiara Cavalli ◽  
Lily D. Poulikakos ◽  
Moises Bueno
Keyword(s):  
Asphalt Concrete ◽  
Mechanical Performance ◽  
Crumb Rubber ◽  
Microstructure Analysis ◽  
Dry Process ◽  
Modified Asphalt

Influence of crumb rubber size particles on moisture damage and strength of the hot mix asphalt

2021 ◽  
Author(s):  
Munder Bilema ◽  
Mohamad Aman ◽  
Norhidayah Hassan ◽  
Mohamed Haloul ◽  
Saeed Modibbo
Keyword(s):  
Hot Mix Asphalt ◽  
Moisture Damage ◽  
Crumb Rubber

scholarly journals Dataset of mechanical, marshall and rheological properties of crumb rubber – Bio-oil modified hot mix asphalt for sustainable pavement works

Data in Brief ◽  
2018 ◽  
Vol 21 ◽  
pp. 63-70 ◽  
Author(s):  
Abayomi Emmanuel Modupe ◽  
Olumoyewa Dotun Atoyebi ◽  
Opeyemi Emmanuel Oluwatuyi ◽  
Oluwasegun James Aladegboye ◽  
Ayobami Adebola Busari ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Hot Mix Asphalt ◽  
Crumb Rubber ◽  
Bio Oil

Effects of asphalt concrete characteristics on cohesive zone model parameters of hot mix asphalt mixtures

2016 ◽  
Vol 43 (3) ◽  
pp. 226-232 ◽  
Author(s):  
S. Pirmohammad ◽  
H. Khoramishad ◽  
M.R. Ayatollahi
Keyword(s):  
Asphalt Concrete ◽  
Cohesive Energy ◽  
Cohesive Zone ◽  
Hot Mix Asphalt ◽  
Cohesive Zone Model ◽  
Experimental Tests ◽  
Model Parameters ◽  
Zone Model ◽  
Binder Type ◽  
Air Void

In this paper, the effects of the main asphalt concrete characteristics including the binder type and the air void percentage on the cohesive zone model (CZM) parameters were studied. Experimental tests were conducted on semi-circular bend (SCB) specimens made of asphalt concrete and the fracture behavior was simulated using a proper CZM. The CZM parameters of various hot mix asphalt (HMA) mixtures were determined using the SCB experimental results. Five types of HMA mixtures were tested and modeled to consider the effects of binder type and air void percentage on the CZM parameters. The results showed that as the binder in HMA mixture softened, the cohesive energy strength increased, whereas enhancing the air void percentage led to reduction of the cohesive energy and strength values. Among the studied HMA mixtures, the highest values of CZM parameters were found for the HMA mixture containing a copolymer called styrene-butadiene-styrene.

Sign in / Sign up

Export Citation Format

Share Document