PSI - Issue 23

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Available online at www.sciencedirect.com Structural Integrity Procedia 00 (2019) 000 – 000 Structural Integrity Procedia 00 (2019) 000 – 000

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Procedia Structural Integrity 23 (2019) 342–347

© 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the ICMSMF organizers © 201 9 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the IC MSMF organizers. Keywords: lightweight concrete ; insulating-structural concrete ; expanded glass ; perlite ; polystyrene ; lightweight aggregate ; resistance to high temperature The ai of this paper is to assess durability of concretes ma e of expanded gla s, perlite and po ystyrene aggregat s exposed to high emperat re. The followi g tests of four concretes, us d i practice fo i sulating-str ctural ap lications, were carried out: density in saturated, natural and oven-dry state, compressive and flexura trength at the curing temperature and after heating at the t mperature of 100 o C, 200 o C, 300 o C and 400 o C. The tests results showed that applied high temp ratures affected the properties of conc tes in different way depending their compositions. Nevertheless, all four composites retained sufficient strength to be still regarded as insulating-structural concretes. © 201 9 The Authors. Published by Elsevier B.V. This is an ope acces article under CC BY-NC-ND lic nse (http://creativecommon org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the IC MSMF organizers. Keywords: lightweight concrete ; insulating-structural concrete ; expanded glass ; perlite ; polystyrene ; lightweight aggregate ; resistance to high temperature The aim of this paper is to assess durability of concretes made of expanded glass, perlite and polystyrene aggregates exposed to high temperature. The following tests of four concretes, used in practice for insulating-structural applications, were carried out: density in saturated, natural and oven-dry state, compressive and flexural strength at the curing temperature and after heating at the temperature of 100 o C, 200 o C, 300 o C and 400 o C. The tests results showed that applied high temperatures affected the properties of concretes in different way depending on their compositions. Nevertheless, all four composites retained sufficient strength to be still regarded as insulating-structural concretes. Compared to conventional, normal-weight concretes, lightweight composites are generally considered to be more resistant to high temperature (Clarke (1993), Jensen et al (1995), Lindgård and Hammer (1998), Curcio et al (1998), Chandra and Berntsson (2003), Domagała and Hager (2012), Andiç - Çakır and Hızal (2012), Go et al (2012)). The most important factors determining the potential higher resistance of lightweight concrete to high temperature include: its greater structural homogeneity, lower thermal conductivity coefficient, lower thermal expansion coefficient and greater fire stability of porous aggregates which during the production process were subject to the Compared to conventional, normal-weight concretes, lightweight composites are generally considered to be more resistant to high temperature (Clarke (1993), Jensen et al ( 995), Lindgård and Hammer ( 998), Curcio et al (1998), Chandra and Berntsson (2003), Domagała and Hager (2012), Andiç - Çakır and Hızal (2012), G et al (2012)). Th most important factors determining the potential hig r resista ce of lightweight concrete to high tem erature include: its greater structural hom geneity, lower thermal conductivity coefficient, l wer thermal expansion coefficient and greater fire stability of porous aggregates which during the production process were subject to the 9th International Conference on Materials Structure and Micromechanics of Fracture Resistance of insulating-structural concretes to high temperature Lucyna Domagała a * a Cracow University of Technology, ul. Warszawska 24, Cracow 30-212, Poland 9th International Conference on Materials Structure and Micromechanics of Fracture Resistance of insulating-structural concretes to high temperature Lucyna Domagała a * a Cracow University of Technology, ul. Warszawska 24, Cracow 30-212, Poland Abstract Abstract 1. Introduction 1. Introduction

* Corresponding author. Tel.: +48 12 628 23 63 E-mail address: ldomagala@pk.edu.pl * Correspon ing author. Tel.: +48 12 628 23 63 E-mail address: ldomagala@pk.edu.pl

2452-3216 © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the IC MSMF organizers. 2452-3216 © 2019 The Authors. Published by Elsevier B.V. This is an ope acces article under CC BY-NC-ND lic nse (http://creativecommon org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the IC MSMF organizers.

2452-3216 © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the ICMSMF organizers 10.1016/j.prostr.2020.01.110