Optimization of mix-design of chemically resistant sprayed concrete

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F19%3APU131158" target="_blank" >RIV/00216305:26110/19:PU131158 - isvavai.cz</a>

Result on the web

<a href="https://ojs.cvut.cz/ojs/index.php/APP/article/view/5646" target="_blank" >https://ojs.cvut.cz/ojs/index.php/APP/article/view/5646</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14311/APP.2019.22.0026" target="_blank" >10.14311/APP.2019.22.0026</a>

Result language

angličtina

Original language name

Optimization of mix-design of chemically resistant sprayed concrete

Original language description

This paper addresses optimization of mix-design and granulometric curves of aggregate of chemically resistant sprayed mix based on cement binder. The target of the paper is improvement of properties of currently developed mix-design, which has no chemical resistance. The second target is use of secondary raw materials to reduce economic demands of manufacture of this mix. The mix was optimized by additions improving chemical resistance and binder substituted by secondary raw materials. The binder was substituted by finely ground waste glass and high-temperature fly ash. Binder was substituted with slag from deposit yard and waste soluble glass from steel manufacture. Main observed properties for design of optimized mix were workability time, consistence and physical-mechanical properties. Test specimens were subjected to testing of water absorbing capacity as potential indicator of chemical resistance. Optimized mix-design successfully replaced all fine parts of filler and up to 30% of binder while the physical-mechanical properties were preserved or even enhanced. Optimized mix-designs show the same consistencies and workability times. The outcome of this paper is sprayed mix with optimized mix-design with high density, excellent physicalmechanical properties and low water absorbing capacity. Its properties predetermine the mix-design to use in conditions with demanding exposition.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/LO1408" target="_blank" >LO1408: AdMaS UP – Advanced Building Materials, Structures and Technologies</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2019

Confidentiality

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

Article name in the collection

SPECIAL CONCRETE AND COMPOSITES 2018

ISBN

978-80-86604-78-7

ISSN

2336-5382

e-ISSN

—

Number of pages

5

Pages from-to

26-30

Publisher name

Czech Technical University in Prague

Place of publication

Praha

Event location

Skalský Dvůr

Event date

Oct 11, 2018

Type of event by nationality

CST - Celostátní akce

UT code for WoS article

000551055900006