Marek Iwański, Anna Chomicz-Kowalska - Application of the foamed bitumen and bitumen emulsion to the road base mixes in the deep cold recycling technology (Vol XI, No 4)

Vilnius Gediminas Technical UniversityRiga Technical UniversityTallinn University of TechnologyBaltic Road Association

 

Abstracted in databases:
Thomson SCIE: Science Citation Index ExpandedTM (Web of Science), INSPEC, EBSCO, TRIS/TRIS Online, VINITI, CSA's ERD, CSA/ASCE (CSA's TRD), SCOPUS (Elsevier Database)

2015 Impact Factor: 0.519 ©2015 Thomson Reuters, 2015 Journal Citation Report®

ISSN 1822-427X print
ISSN 1822-4288 online
 

 

 
 

"The Baltic Journal of Road and Bridge Engineering"
Vilnius: Technika, 2016, Vol XI, No 4, p. 291-301


Marek Iwański, Anna Chomicz-Kowalska

Application of the foamed bitumen and bitumen emulsion to the road base mixes in the deep cold recycling technology

DOI: 10.3846/bjrbe.2016.34
 
This paper presents findings of a study concerning the influence of binder type on the mechanical properties of road base in the cold recycling technology. The principal aim of this investigation was to evaluate the mixes in scope of susceptibility to moisture and low-temperatures. In the comparative research foamed bitumen and bitumen emulsion were used in four different concentrations (2.0%, 2.5%, 3.0%, 3.5%). The materials used in the study were reclaimed from an existing road construction layers: reclaimed aggregate from the road base and reclaimed asphalt pavement obtained by milling the surface and binder course. Portland cement in 2.0% concentration was used as a hydraulic binder. The evaluated parameters were: indirect tensile strengths, tensile strength retained and indirect tensile stiffness modulus at 25 °C. These tests were complemented by an evaluation of susceptibility to moisture and frost according to modified procedures implemented by American researchers: Tunnicliff, Root and Lottman. Moreover, tests for low-temperature cracking were conducted according to Finnish standard. The investigations showed that the use of foamed bitumen for road base layer produced in the cold recycling technology results in better mechanical properties and resistance to moisture and frost compared to using bitumen emulsion. The use of 2.5% of foamed bitumen and 2.0% of Portland cement in the recycled road base allowed to meet the established criteria.
 
Keywords: Marek Iwański, Anna Chomicz-Kowalska - Application of the foamed bitumen and bitumen emulsion to the road base mixes in the deep cold recycling technology (Vol XI, No 4)

Read full article (restricted access)

view contents of entire journal number    |    switch abstract language to Lithuanian, Latvian or Estonian

 

 
 

 

© Vilnius Gediminas Technical University, 2006 - 2018   |   Web Design   

Hey.lt - Interneto reitingai, lankomumo statistika, lankytojų skaitliukai