Development of Performance Models for the Rubberized Asphalt Concrete of Local Agencies in California

2016 ◽  
Author(s):  
Ding Xin Cheng ◽  
R. Gary Hicks ◽  
Lerose Lane
Keyword(s):  
Asphalt Concrete ◽  
Performance Models ◽  
Rubberized Asphalt Concrete ◽  
Local Agencies

Design of Rubberized Asphalt Concrete by Means of Coarse Aggregate Void Filling Method

2012 ◽  
Vol 463-464 ◽  
pp. 215-220
Author(s):  
Kuang Huai Wu ◽  
Guo Liang Yang ◽  
Ai Yu Zeng
Keyword(s):  
Asphalt Concrete ◽  
Coarse Aggregate ◽  
Asphalt Mixture ◽  
Aggregate Size ◽  
Temperature Stability ◽  
Maximum Aggregate Size ◽  
High Temperature Stability ◽  
Asphalt Rubber ◽  
Filling Method ◽  
Rubberized Asphalt Concrete

In order to find a convenient approach to design the mix of rubberized asphalt concrete (RAC) and make full use of the properties of RAC, a kind of RAC-13 (13 is the nominal maximum aggregate size of the mixture) was designed by means of coarse aggregate void filling method (CAVF). A series of conventional tests of asphalt mixture with five asphalt-rubber aggregate ratio(ARAR) were carried out to check the target mix design and evaluate the performance of RAC. Performance evaluation tests such as Marshall and submerged Marshall stability test, moisture damage test and wheel tracking test were included. Test results show that the high temperature stability, moisture susceptibility and road performance of RAC-13 designed with CAVF method are all favorable. The recommended optimum asphalt-rubber aggregate ratio(OARAR) is 7.1% under the condition of skeleton structure. CAVF is a good means for designing RAC to ensure its stone-on-stone contact structure.

scholarly journals Review of warm mix rubberized asphalt concrete: Towards a sustainable paving technology

2018 ◽  
Vol 177 ◽  
pp. 302-314 ◽  
Author(s):  
Haopeng Wang ◽  
Xueyan Liu ◽  
Panos Apostolidis ◽  
Tom Scarpas
Keyword(s):  
Asphalt Concrete ◽  
Rubberized Asphalt Concrete

scholarly journals Behavior of a draining mixture composed by recycled concrete aggregates and rubberized asphalt concrete

Respuestas ◽  
2020 ◽  
Vol 25 (1) ◽  
pp. 96-107
Author(s):  
Juan Gabriel Bastidas-Martínez ◽  
Nicolás Infante Rodríguez-Joaquín ◽  
Hernán Darío Torres-Daza ◽  
Hugo Alexander Rondón-Quintana ◽  
Juan Carlos Ruge-Cárdenas
Keyword(s):  
Asphalt Concrete ◽  
Negative Impact ◽  
Asphalt Mixture ◽  
Control Sample ◽  
Experimental Tests ◽  
Recycled Concrete ◽  
Concrete Aggregate ◽  
Recycled Concrete Aggregates ◽  
Dry Conditions ◽  
Rubberized Asphalt Concrete

Concrete waste is considered an environmental liability with a negative impact. However, this type of waste presents a high potential to be used as an alternative building material. Therefore, the present study aims to evaluate the applicability of substituting the conventional natural stone aggregate (CA) of a draining asphalt mixture (MD) by a recycled concrete aggregate (RCA). Firstly, RCA was physically characterized to be compared with the AC. Then, two MD mixtures were design with rubberized asphalt concrete (GCR by its spanish acronym): one using the conventional aggregate (control sample) and one with the RCA substituting entirely the CA. Experimental tests under monotonic load (indirect tensile strength - RTI) were conducted over the mixtures, as well as  adhesion tests (susceptibility of RTI in wet and dry conditions and abrasion wear Cantabro). The results indicate that for MD mixtures with RCA, a higher content of asphalt is required than with CA. Additionally, it wasfound that the presence of higher asphalt content in MD-RCA mixtures increases its adhesion when compared with the control sample. Therefore, it can be concluded that the use the RCA for MD mixtures, in the proposed way, is technically and environmentally viable.

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