Experimental investigation of polyurethane-coated HPFRC panels under direct contact blast

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F25%3A00383954" target="_blank" >RIV/68407700:21110/25:00383954 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.14311/AP.2025.65.0188" target="_blank" >https://doi.org/10.14311/AP.2025.65.0188</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14311/AP.2025.65.0188" target="_blank" >10.14311/AP.2025.65.0188</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Experimental investigation of polyurethane-coated HPFRC panels under direct contact blast

Popis výsledku v původním jazyce

High-performance fibre-reinforced concrete (HPFRC) exhibits exceptional resistance todynamic loading, making it a promising material for structures exposed to blast or impact events.However, when used to produce thin panels, it can experience scabbing under extreme loads. Toaddress this and enhance the blast resistance, this study explores the application of a polyurethane (PU)coating to the HPFRC panels. Coated and uncoated panels undergo direct contact blast testing andvarious factors, such as crater area, rear fragment formation, cracking, and residual flexural strength,are analysed. Our study indicates that applying a PU coating to the panels could effectively preventscabbing and mitigate the risk of complete perforation, while it appears that it results in the panelabsorbing more energy during blast, leading to increased damage and a subsequent decrease in residualflexural strength compared to bare panels.

Název v anglickém jazyce

Experimental investigation of polyurethane-coated HPFRC panels under direct contact blast

Popis výsledku anglicky

High-performance fibre-reinforced concrete (HPFRC) exhibits exceptional resistance todynamic loading, making it a promising material for structures exposed to blast or impact events.However, when used to produce thin panels, it can experience scabbing under extreme loads. Toaddress this and enhance the blast resistance, this study explores the application of a polyurethane (PU)coating to the HPFRC panels. Coated and uncoated panels undergo direct contact blast testing andvarious factors, such as crater area, rear fragment formation, cracking, and residual flexural strength,are analysed. Our study indicates that applying a PU coating to the panels could effectively preventscabbing and mitigate the risk of complete perforation, while it appears that it results in the panelabsorbing more energy during blast, leading to increased damage and a subsequent decrease in residualflexural strength compared to bare panels.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/FW03010141" target="_blank" >FW03010141: Sendvičové konstrukce nové generace pro zvýšení bezpečnosti objektů kritické infrastruktury</a><br>

Návaznosti

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

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Acta Polytechnica

ISSN

1210-2709

e-ISSN

1805-2363

Svazek periodika

65

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

10

Strana od-do

188-197

Kód UT WoS článku

001503880200006

EID výsledku v databázi Scopus

2-s2.0-105005975377