Experimental and practical experience with alternative hydraulic binders mainly in asphalt pavement cold recycling

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00327469" target="_blank" >RIV/68407700:21110/18:00327469 - 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

Experimental and practical experience with alternative hydraulic binders mainly in asphalt pavement cold recycling

Popis výsledku v původním jazyce

Recycling of asphalt pavements is a technical approach which is used and continuously developed in road construction and rehabilitation for more than 40 years. Cold recycling, especially if done in-situ, is an effective solution for rehabilitating mainly rural roads of medium to low traffic intensities. It can be used either for turning unbound layers to bound structural layers with improved performance or to overall improve bearing capacity and durability of the pavement structure. During cold recycling usually old asphalt layers together with cement bound base layers or granular base materials are milled and mixed with bituminous binders or cement (or often even both) to form a new structural layer. In the research done by the Czech Technical University in Prague continuously for more than 7 years the attention has been paid to evaluate and develop alternative hydraulic binders where waste materials or by-products can be used and usually the traditional cement can be replaced. These alternative hydraulic or alkali activated binders are based on fly ash, blast furnace slag or selected particle ranges of recyclable concrete (<2mm). Findings from experimental studies including traditional empirical as well as more advanced performance-based tests are summarized in this paper. Further, experience from a trial section where activated fly-ash from fluidized bed was used as substitute in cold recycled mixture will be shortly discussed as well.

Název v anglickém jazyce

Experimental and practical experience with alternative hydraulic binders mainly in asphalt pavement cold recycling

Popis výsledku anglicky

Recycling of asphalt pavements is a technical approach which is used and continuously developed in road construction and rehabilitation for more than 40 years. Cold recycling, especially if done in-situ, is an effective solution for rehabilitating mainly rural roads of medium to low traffic intensities. It can be used either for turning unbound layers to bound structural layers with improved performance or to overall improve bearing capacity and durability of the pavement structure. During cold recycling usually old asphalt layers together with cement bound base layers or granular base materials are milled and mixed with bituminous binders or cement (or often even both) to form a new structural layer. In the research done by the Czech Technical University in Prague continuously for more than 7 years the attention has been paid to evaluate and develop alternative hydraulic binders where waste materials or by-products can be used and usually the traditional cement can be replaced. These alternative hydraulic or alkali activated binders are based on fly ash, blast furnace slag or selected particle ranges of recyclable concrete (<2mm). Findings from experimental studies including traditional empirical as well as more advanced performance-based tests are summarized in this paper. Further, experience from a trial section where activated fly-ash from fluidized bed was used as substitute in cold recycled mixture will be shortly discussed as well.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

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

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the IV International Conference, Progress of Recycling in the Build Environment

ISBN

978-2-35158-208-4

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

266-273

Název nakladatele

RILEM Publications SARL

Místo vydání

Bagneux

Místo konání akce

Lisabon

Datum konání akce

11. 10. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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