MOC Composites for Constructions: Improvement of Water Resistance by Addition of Nanodopants and Polyphenol

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43927659" target="_blank" >RIV/60461373:22310/23:43927659 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2073-4360/15/21/4300" target="_blank" >https://www.mdpi.com/2073-4360/15/21/4300</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/polym15214300" target="_blank" >10.3390/polym15214300</a>

Result language

angličtina

Original language name

MOC Composites for Constructions: Improvement of Water Resistance by Addition of Nanodopants and Polyphenol

Original language description

The topic of modification of magnesium oxychloride cement (MOC) using specific functional additives is very much pronounced in the research of alternative building materials. This study deals with the co-doping of MOC by 1D and 2D carbon nanomaterials in order to improve its mechanical properties while using tannic acid (TA) as a surfactant. Furthermore, the effect of TA on MOC also improves its water resistance. As a filler, three size fractions of standard quartz sand are used. The proposed types of MOC-based composites show promising results considering their mechanical, macro- and microstructural, chemical, and hygric properties. The use of 1D and 2D nanoadditives and their mixture enables the improvement in the flexural strength and particularly the softening coefficient, which is the durability parameter characterizing the resistance of the prepared materials to water. After immersion in water for 24 h, the compressive strength of all tested specimens of modified composites was higher than that of the reference composite. Quantitatively, the developed co-doped composites show mechanical parameters comparable to or even better than those of commonly used Portland cement-based materials while maintaining high environmental efficiency. This indicates their potential use as an environmentally friendly alternative to Portland cement-based products.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10402 - Inorganic and nuclear chemistry

Project

<a href="/en/project/GM23-05194M" target="_blank" >GM23-05194M: High-strength and water-resistant MOC composites with secondary fillers: contribution of 2D carbon-based nanomaterials and their combinations</a><br>

Continuities

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

Publication year

2023

Confidentiality

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

Name of the periodical

Polymers

ISSN

2073-4360

e-ISSN

2073-4360

Volume of the periodical

15

Issue of the periodical within the volume

21

Country of publishing house

CH - SWITZERLAND

Number of pages

16

Pages from-to

4300

UT code for WoS article

001100196800001

EID of the result in the Scopus database

2-s2.0-85176550206