Mechanical Properties of 100% Recycled Half-Warm Asphalt Mixtures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F15%3A00234761" target="_blank" >RIV/68407700:21110/15:00234761 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Mechanical Properties of 100% Recycled Half-Warm Asphalt Mixtures

Popis výsledku v původním jazyce

In several countries bituminous mixtures are used in railway subballast instead of crushed stone because of their greater resistance to permanent deformation, durability, impermeability and better thermal insulating properties. Since the production of hot mix asphalts requires great amounts of energy and natural materials, a solution utilizing recycled asphalt pavement (RAP) only and demanding less energy was proposed and investigated. 100% recycled half-warm asphalt mixtures (H-WMA) were produced by heating RAP up to 100 ±5 °C and were placed over a soft subgrade in a full-scale laboratory model of railway trackbed. After 500 000 loading cycles, specimens were taken from the bituminous layer to assess, whether any deterioration of the recycled H-WMA occurred due to the cyclic loading and to evaluate the mechanical strength of the mixtures as well as their resistance to water and frost. The tests revealed satisfactory mechanical strength and resistance to water and frost of the mixtures.

Název v anglickém jazyce

Mechanical Properties of 100% Recycled Half-Warm Asphalt Mixtures

Popis výsledku anglicky

In several countries bituminous mixtures are used in railway subballast instead of crushed stone because of their greater resistance to permanent deformation, durability, impermeability and better thermal insulating properties. Since the production of hot mix asphalts requires great amounts of energy and natural materials, a solution utilizing recycled asphalt pavement (RAP) only and demanding less energy was proposed and investigated. 100% recycled half-warm asphalt mixtures (H-WMA) were produced by heating RAP up to 100 ±5 °C and were placed over a soft subgrade in a full-scale laboratory model of railway trackbed. After 500 000 loading cycles, specimens were taken from the bituminous layer to assess, whether any deterioration of the recycled H-WMA occurred due to the cyclic loading and to evaluate the mechanical strength of the mixtures as well as their resistance to water and frost. The tests revealed satisfactory mechanical strength and resistance to water and frost of the mixtures.

Druh

D - Stať ve sborníku

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

<a href="/cs/project/TE01020168" target="_blank" >TE01020168: Centrum pro efektivní a udržitelnou dopravní infrastrukturu (CESTI)</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the international students scientific conference RISEM 2015 - Research and Inovation of Secondary Materials with Focus on Civil Engineering

ISBN

978-80-01-05813-8

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

50-55

Název nakladatele

Czech Technical University in Prague

Místo vydání

Praha

Místo konání akce

Prague

Datum konání akce

23. 9. 2015

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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