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Marek Iwański, Przemysław Buczyński
Properties of the recycled base course with respect
to the road binder type
| Conference Information: |
9th International Conference on Environmental
Engineering, MAY 22-24, 2014 Vilnius, LITHUANIA |
| Source: |
ICEE-2014 - International Conference on Environmental
Engineering |
| Book Series: |
International Conference on Environmental Engineering
(ICEE) Selected papers |
| ISSN: |
ISSN 2029-7092 online |
| ISBN: |
978-609-457-640-9 / 978-609-457-690-4 CD |
| Year: |
2014 |
| Publisher: |
Vilnius Gediminas Technical University Press Technika |
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Abstract
This paper presents the results from the tests performed on the recycled base mixes manufactured in cold deep recycling technology with
bitumen emulsion and different types of binding agent. Portland cement denoted as CEM I 32.5, lime and the blends of both were used.
The mineral mix design was based on the recycled material derived from the local road renovation. The material consisted of recycled
bituminous layers and base unbound aggregate. For the purpose of evaluating an influence of the binding agents, the tests were to
determine indirect tensile strength (ITS), indirect tensile modulus (Sm) at specific temperatures of 0 °C, 10 °C and 20 °C and water and
frost resistance of the recycled base mixes. The results obtained from the tests indicated that the impact of the tested binders on the
properties of recycled base varies. In addition, a beneficial influence was observed of a little amount of lime in binder blends on water and
frost resistance of the recycled base. The paper provides a preliminary assessment of the amounts recommended for application.
Keywords: Deep cold recycling; binding agents; wather resistance; bitumen emulsion; cement and lime.
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