Potential substitutions of traditional hydraulic binders in cold recycled mixtures using blast furnace slag

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F21%3A00351618" target="_blank" >RIV/68407700:21110/21:00351618 - isvavai.cz</a>

Result on the web

<a href="https://master.grad.hr/cetra/ocs/index.php/cetra6/cetra2020" target="_blank" >https://master.grad.hr/cetra/ocs/index.php/cetra6/cetra2020</a>

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Potential substitutions of traditional hydraulic binders in cold recycled mixtures using blast furnace slag

Original language description

Cold recycling techniques are known for decades in pavement engineering as a suitable rehabilitation method mainly for existing asphalt pavements. Traditionally the most common solution is to use bituminous emulsion or foamed bitumen as a binder usually in combination with small amount of cement or lime as active fillers. In some countries cement or hydraulic road binders are preferred instead of bitumen based options since it is believed that hydraulic binders can increase the bearing capacity of cold recycled layer especially for pavements with underestimated structures which were designed >40 years ago. Based on that the Faculty of Civil Engineering, CTU Prague is for more than 10 years evaluating and developing further alternatives for the cement-based approach of cold recycled mixtures. In the past experience with fly-ashes or activated fly-ash based alternative binders were presented. Presently the focus is concentrating on the potentials of using blast furnace slags which are not generally usable for the cement industry (e.g. because of limited content of glassy compounds which are very typical mainly for granulated blast furnace slags). Air-cooled blast furnace slags were selected and activated by high-speed milling to get a material with latent hydraulic properties. This modified slag was applied in several options to cold recycled mixtures and standard strength and deformation tests were performed, including the determination of resistance to water immersion. Separately pastes based on used treated fine-grained slags were tested and evaluated. Data of the pastes are discussed jointly with the results for experimentally tested cold recycled mixtures.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20101 - Civil engineering

Project

<a href="/en/project/TH04020043" target="_blank" >TH04020043: Innovative technology for the use of inorganic industrial waste materials or by-products</a><br>

Continuities

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

Publication year

2021

Confidentiality

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

Article name in the collection

Road and Rail Infrastructure VI, Proceedings of the Conference CETRA 2020*

ISBN

978-953-8168-48-2

ISSN

—

e-ISSN

1848-9850

Number of pages

13

Pages from-to

1-13

Publisher name

University of Zagreb

Place of publication

Zagreb

Event location

Pula (online)

Event date

May 20, 2021

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

—