Utilization of waste carbon spheres in magnesium oxychloride cement

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F23%3A00584065" target="_blank" >RIV/61389021:_____/23:00584065 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22810/23:43927618 RIV/60461373:22310/23:43927618 RIV/68407700:21110/23:00367552

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S2214509523005545?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2214509523005545?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cscm.2023.e02374" target="_blank" >10.1016/j.cscm.2023.e02374</a>

Result language

angličtina

Original language name

Utilization of waste carbon spheres in magnesium oxychloride cement

Original language description

The Portland cement (PC) industry is a big producer of CO2 – a major contributor to the global warming. As the world tends to reduce the CO2 emissions because of its negative effect, a sustainable and efficient PC alternative is needed to be found. One of the most promising substitute is based on reactive magnesia – magnesium oxychloride cement (MOC). This paper deals with the design, development, and characterization of environmentally friendly composites based on MOC. In addition to the standard quartz sand filler, carbon spheres-based waste produced by polypropylene treatment via plasma gasification was used as a nanoadditive. Before the preparation of the composites themselves, the carbon spheres (CS) were analysed with a wide range of analytical methods in order to determine their microstructure and composition. The CS were used in the amount of 0.5, 1.0, and 3.0 wt% related to the weight of the pure MOC paste. The prepared composite samples were tested for their microstructure, phase and chemical composition, micro- and macrostructural parameters, and mechanical properties after 28 days of maturing. Furthermore, the influence of CS on the hygric properties and the water resistance of the MOC-based composites were studied after 24 h-long immersion in water. It has been shown, that with the increasing amount of CS, the mechanical parameters improve quite rapidly, making CS an enhancing eco-friendly nanoadditive. It was also shown, that CS helps to slow down water transport in MOC-based composites, which is a key aspect in the improvement of their water resistance and overall durability after exposure to humidity. The incorporation of carbon spheres-based waste as a nanoadditive in MOC-based composites shows promising improvements in mechanical properties and water resistance, contributing to the development of environmentally friendly construction materials.

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

20501 - Materials engineering

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

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

Case Studies in Construction Materials

ISSN

2214-5095

e-ISSN

2214-5095

Volume of the periodical

19

Issue of the periodical within the volume

December

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

14

Pages from-to

e02374

UT code for WoS article

001156665100001

EID of the result in the Scopus database

2-s2.0-85171629225