Spruce chips stabilization in wood-cement materials: Effect of matrix composition

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F23%3APU149683" target="_blank" >RIV/00216305:26110/23:PU149683 - isvavai.cz</a>

Výsledek na webu

<a href="https://revistas.ubiobio.cl/index.php/MCT/article/view/6130" target="_blank" >https://revistas.ubiobio.cl/index.php/MCT/article/view/6130</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.22320/s0718221x/2024.27" target="_blank" >10.22320/s0718221x/2024.27</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Spruce chips stabilization in wood-cement materials: Effect of matrix composition

Popis výsledku v původním jazyce

The paper presents research focused on the behaviour of wood-cement composites with a modified matrix. This matrix has an impact on the stabilization of the spruce wood content. Silicate matrix based on Portland and blended cement was modified by finely ground thermal power plant slag (TPPS) and limestone (LS). Four types of wood-cement composite were subjected to water immersion tests for 28 days. During water immersion, both swelling in thickness and mass changes were analysed. The amount of sugars and pH in leachate were determined after 7 day intervals. Mechanical properties and microstructures were analysed before and after water immersion. Different behaviour with regard to spruce chips stabilization was proved in dependence of wood-cement matrix modification. Differences in thickness, swelling and sugar leach indirectly indicate the influence of the wood-cement composites matrix composition on the stabilization of spruce chips contained in this matrix. Boards with the matrix modified with thermal power plant slag showed the highest thickness swelling (%) and sugar leaching (0,042 %). Therefore, in the presence of thermal power plant slag modified matrix, spruce chips are more susceptible to sugar leach. The results of strength characteristics confirmed that sugars leached during hydration and after longer contact of wood-cement composites with water have no negative influence in their final properties in the case of all materials tested (reference and modified).

Název v anglickém jazyce

Spruce chips stabilization in wood-cement materials: Effect of matrix composition

Popis výsledku anglicky

The paper presents research focused on the behaviour of wood-cement composites with a modified matrix. This matrix has an impact on the stabilization of the spruce wood content. Silicate matrix based on Portland and blended cement was modified by finely ground thermal power plant slag (TPPS) and limestone (LS). Four types of wood-cement composite were subjected to water immersion tests for 28 days. During water immersion, both swelling in thickness and mass changes were analysed. The amount of sugars and pH in leachate were determined after 7 day intervals. Mechanical properties and microstructures were analysed before and after water immersion. Different behaviour with regard to spruce chips stabilization was proved in dependence of wood-cement matrix modification. Differences in thickness, swelling and sugar leach indirectly indicate the influence of the wood-cement composites matrix composition on the stabilization of spruce chips contained in this matrix. Boards with the matrix modified with thermal power plant slag showed the highest thickness swelling (%) and sugar leaching (0,042 %). Therefore, in the presence of thermal power plant slag modified matrix, spruce chips are more susceptible to sugar leach. The results of strength characteristics confirmed that sugars leached during hydration and after longer contact of wood-cement composites with water have no negative influence in their final properties in the case of all materials tested (reference and modified).

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA22-06991S" target="_blank" >GA22-06991S: Stabilizace vlastností a struktury smrkového dřeva s ohledem na trvanlivost dřevo-cementových kompozitů</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Maderas: Ciencia y Tecnologia

ISSN

0717-3644

e-ISSN

0718-221X

Svazek periodika

2024

Číslo periodika v rámci svazku

26

Stát vydavatele periodika

CL - Chilská republika

Počet stran výsledku

18

Strana od-do

1-18

Kód UT WoS článku

001223194500002

EID výsledku v databázi Scopus

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