Experimental response of high-strength fiber-reinforced concrete slabs to blast loading

Al Hazmi, Waleed H. and Cendón Franco, David Ángel and Gálvez Díaz-Rubio, Francisco and Ruiz, Gonzalo and Zhang, Xiaoxin and Gómez del Pulgar, Celia (2015). Experimental response of high-strength fiber-reinforced concrete slabs to blast loading. In: "XXXII Encuentro del Grupo Español de Fractura", 27-29 de abril de 2015, Zamora. pp. 190-195.

Description

Title: Experimental response of high-strength fiber-reinforced concrete slabs to blast loading
Author/s:
  • Al Hazmi, Waleed H.
  • Cendón Franco, David Ángel
  • Gálvez Díaz-Rubio, Francisco
  • Ruiz, Gonzalo
  • Zhang, Xiaoxin
  • Gómez del Pulgar, Celia
Item Type: Presentation at Congress or Conference (Article)
Event Title: XXXII Encuentro del Grupo Español de Fractura
Event Dates: 27-29 de abril de 2015
Event Location: Zamora
Title of Book: Anales de Mecánica de la Fractura
Date: 2015
Volume: 32
Subjects:
Freetext Keywords: High-performance fiber-reinforced concrete, high strain rates, softening behaviour, blast loading
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ciencia de los Materiales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Fibre reinforced concrete has emerged as a suitable material for the design and building of structures aimed to resist highly dynamic events such as impacts, earthquakes and explosions. In the latter case, recent studies have shown the paramount role played by the mechanical properties related with fracture in the overall behaviour of concrete structural elements when subjected to blast loading. In this work an experimental campaign over high-strength fibre reinforced concrete slabs subjected to blast loading is presented. With the aim of analysing the influence of the softening behaviour in the structural response of the slabs subjected to blast loading, three self-compacting high-strength concretes reinforced with steel fibers have been designed. The three of them shared the same matrix bud had different levels of fiber reinforcement (low, intermediate and high). The mechanical characterization conducted later over the three concretes, including fracture energy measurements at high strain rates, has confirmed the remarkably different softening behaviours achieved with the three mixes designed. These concretes have been subjected to a campaign of blast tests consisting on submitting series of concrete slabs, one of each type of concrete, to the same explosive load. In order to have a control on the experimental scatter of the results, the test is repeated three times with the same explosive load so that results of at least three samples of each concrete are available at the end of the campaign. The preliminary results provided in this paper show a clear influence of the fibre content in the crack patterns registered in the different concrete mixes after the tests.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainBIA2011-24445, MAT2012-35416UnspecifiedUnspecifiedUnspecified

More information

Item ID: 42165
DC Identifier: http://oa.upm.es/42165/
OAI Identifier: oai:oa.upm.es:42165
Official URL: http://www.gef.es/web/Publicaciones.asp
Deposited by: Memoria Investigacion
Deposited on: 05 Jul 2016 15:29
Last Modified: 25 Sep 2018 06:40
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