Effect of petrographic composition and chemistry of aggregate on the local and general fracture response of cementitious composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F22%3A00556249" target="_blank" >RIV/68145535:_____/22:00556249 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26110/22:PU144328 RIV/68407700:21110/22:00361590

Výsledek na webu

<a href="https://www.fracturae.com/index.php/fis/article/view/3321/3461" target="_blank" >https://www.fracturae.com/index.php/fis/article/view/3321/3461</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3221/IGF-ESIS.60.02" target="_blank" >10.3221/IGF-ESIS.60.02</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of petrographic composition and chemistry of aggregate on the local and general fracture response of cementitious composites

Popis výsledku v původním jazyce

This paper concerns the results of research into the influence of the composition of rock inclusions on the fracture response of cement-based composite specimens. Specially designed specimens of the nominal dimensions 40 × 40 × 160 mm with inclusions in the shape of prisms with nominal dimensions of 8 × 8 × 40 mm were provided with an initial central edge notch with a depth of 12 mm. These specimens, which were made of fine-grained cement-based composite with different types of rock inclusion – amphibolite, basalt, granite, and marble – were tested in the three-point bending configuration. Fracture surfaces were examined via scanning electron microscopy and local response in the vicinity of rock inclusions was characterized via the nanoindentation technique. The aim of this paper is to analyse the influence of the chemical/petrographic composition of rock inclusions on the effective mechanical fracture parameters of cement-based composites, as well as on the microstructural mechanical parameters of the interfacial transition zone. The results of this research indicate the significant dependence of the effective fracture parameters on the petrographic and related chemical composition of the rock inclusions.

Název v anglickém jazyce

Effect of petrographic composition and chemistry of aggregate on the local and general fracture response of cementitious composites

Popis výsledku anglicky

This paper concerns the results of research into the influence of the composition of rock inclusions on the fracture response of cement-based composite specimens. Specially designed specimens of the nominal dimensions 40 × 40 × 160 mm with inclusions in the shape of prisms with nominal dimensions of 8 × 8 × 40 mm were provided with an initial central edge notch with a depth of 12 mm. These specimens, which were made of fine-grained cement-based composite with different types of rock inclusion – amphibolite, basalt, granite, and marble – were tested in the three-point bending configuration. Fracture surfaces were examined via scanning electron microscopy and local response in the vicinity of rock inclusions was characterized via the nanoindentation technique. The aim of this paper is to analyse the influence of the chemical/petrographic composition of rock inclusions on the effective mechanical fracture parameters of cement-based composites, as well as on the microstructural mechanical parameters of the interfacial transition zone. The results of this research indicate the significant dependence of the effective fracture parameters on the petrographic and related chemical composition of the rock inclusions.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA21-11965S" target="_blank" >GA21-11965S: Výzkum mikrostruktury a simulace sdružených fyzikálních polí v betonu při elektromigračním léčení</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Frattura ed Integrita Strutturale

ISSN

1971-8993

e-ISSN

—

Svazek periodika

16

Číslo periodika v rámci svazku

60

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

17

Strana od-do

13-29

Kód UT WoS článku

000783296100002

EID výsledku v databázi Scopus

2-s2.0-85129580954