Physico-mechanical properties of cellulose fiber-cement mortars

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F20%3A10245067" target="_blank" >RIV/61989100:27350/20:10245067 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.scientific.net/KEM.838.31" target="_blank" >https://www.scientific.net/KEM.838.31</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.838.31" target="_blank" >10.4028/www.scientific.net/KEM.838.31</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Physico-mechanical properties of cellulose fiber-cement mortars

Popis výsledku v původním jazyce

This paper is aimed to investigate the total sand filler replacement by two types of cellulosic fibers (bleached wood pulp-WP and recycled fibers from waste paper-RF) in cement-based mortars. Two different types of cement mortar, one with addition of finely ground limestone and other with powdered granulated slag, were mixed with fibers. The changes in consistency of fresh fiber cement mortars and development of compressive and flexural strength of mortars in dependence on hardening time up to 90 days was studied. The development of compressive and flexural strength with increasing hardening time of cellulose fiber mortars and two binders with different properties confirmed that binder mixtures containing finely ground slag and recycled cellulose fibers achieved higher values of these strength parameters. Also adhesion testing of fiber cement mortars on two substrates (ceramic fitting and aerated concrete block) after 28 days of their application showed better adhesion of cement mortars with finely ground granulated slag on the ceramic fitting surface compared to the mortars containing finely ground limestone. However, any cracks have occurred on both substrates during the maturing of mortars with slag. Based on the above facts, it can be concluded that suitable plaster mixtures for their use in the interior appear the cement recipes with both cellulose fibers (wood pulp and fibers from recycled waste paper) and with finely ground limestone. (C) 2020 Trans Tech Publications Ltd, Switzerland.

Název v anglickém jazyce

Physico-mechanical properties of cellulose fiber-cement mortars

Popis výsledku anglicky

This paper is aimed to investigate the total sand filler replacement by two types of cellulosic fibers (bleached wood pulp-WP and recycled fibers from waste paper-RF) in cement-based mortars. Two different types of cement mortar, one with addition of finely ground limestone and other with powdered granulated slag, were mixed with fibers. The changes in consistency of fresh fiber cement mortars and development of compressive and flexural strength of mortars in dependence on hardening time up to 90 days was studied. The development of compressive and flexural strength with increasing hardening time of cellulose fiber mortars and two binders with different properties confirmed that binder mixtures containing finely ground slag and recycled cellulose fibers achieved higher values of these strength parameters. Also adhesion testing of fiber cement mortars on two substrates (ceramic fitting and aerated concrete block) after 28 days of their application showed better adhesion of cement mortars with finely ground granulated slag on the ceramic fitting surface compared to the mortars containing finely ground limestone. However, any cracks have occurred on both substrates during the maturing of mortars with slag. Based on the above facts, it can be concluded that suitable plaster mixtures for their use in the interior appear the cement recipes with both cellulose fibers (wood pulp and fibers from recycled waste paper) and with finely ground limestone. (C) 2020 Trans Tech Publications Ltd, Switzerland.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20700 - Environmental engineering

Projekt

—

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Key Engineering Materials

ISSN

1013-9826

e-ISSN

—

Svazek periodika

838

Číslo periodika v rámci svazku

April 2020

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

8

Strana od-do

31-38

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85087007764