Study the effect of carbon nanoparticles in concrete

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F18%3APU130379" target="_blank" >RIV/00216305:26110/18:PU130379 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1088/1757-899X/385/1/012006" target="_blank" >http://dx.doi.org/10.1088/1757-899X/385/1/012006</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1757-899X/385/1/012006" target="_blank" >10.1088/1757-899X/385/1/012006</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Study the effect of carbon nanoparticles in concrete

Popis výsledku v původním jazyce

Carbon nanoparticles, whether in the form of nanotubes, fibers or graphenoids, can under suitable application improve mechanical as well as durability properties of cement composites. The use of carbon nanoparticles in concrete is limited by their relatively high cost but also by the difficulty of their dispersion in concrete. The experimental research was focused on the issue of dispersion of carbon nanotubes (CNT) and the effect of CNT in concrete. Concrete with different doses of multi-walled CNT (0.0015 % and 0.012 % from the weight of cement) was prepared. The dispersion of CNT, superplasticizing admixture based on polycarboxylate ether, and water was carried out using ultrasonic cavitator. The impact of various doses of CNT on the strength of concrete after 7 and 28 days and frost resistance of concrete after 100 cycles was observed. The best results were achieved with the addition of 0.012 % CNT of cement weight, representing a dose of 43.2 g per 1 m3 of concrete. The increase in compressive strength was 11.9 %, 17.3 % in flexural strength, 15.2 % in the tensile splitting strength and 26.9 % is the tensile strength of concrete surface layers after 28 days compared to the reference samples without CNT. Changes in properties of concrete with the addition of CNT were observed also in the case of frost resistance of concrete (8 % increase in the coefficient of frost resistance of concrete with the addition of 0.012 % CNT of cement weight)

Název v anglickém jazyce

Study the effect of carbon nanoparticles in concrete

Popis výsledku anglicky

Carbon nanoparticles, whether in the form of nanotubes, fibers or graphenoids, can under suitable application improve mechanical as well as durability properties of cement composites. The use of carbon nanoparticles in concrete is limited by their relatively high cost but also by the difficulty of their dispersion in concrete. The experimental research was focused on the issue of dispersion of carbon nanotubes (CNT) and the effect of CNT in concrete. Concrete with different doses of multi-walled CNT (0.0015 % and 0.012 % from the weight of cement) was prepared. The dispersion of CNT, superplasticizing admixture based on polycarboxylate ether, and water was carried out using ultrasonic cavitator. The impact of various doses of CNT on the strength of concrete after 7 and 28 days and frost resistance of concrete after 100 cycles was observed. The best results were achieved with the addition of 0.012 % CNT of cement weight, representing a dose of 43.2 g per 1 m3 of concrete. The increase in compressive strength was 11.9 %, 17.3 % in flexural strength, 15.2 % in the tensile splitting strength and 26.9 % is the tensile strength of concrete surface layers after 28 days compared to the reference samples without CNT. Changes in properties of concrete with the addition of CNT were observed also in the case of frost resistance of concrete (8 % increase in the coefficient of frost resistance of concrete with the addition of 0.012 % CNT of cement weight)

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Projekt

<a href="/cs/project/GA18-25035S" target="_blank" >GA18-25035S: Studium účinků proudících kapalin na opotřebení cementových kompozitů a následné modelování mechanické koroze</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

IOP Conference Series: Materials Science and Engineering

ISSN

1757-8981

e-ISSN

—

Svazek periodika

385

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

6

Strana od-do

1-6

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85051362184