Frost-salt Testing Non-air Entrained High-performance Fly-ash Concrete Part II: Parameter Study of Effect of Internal Cracking on Glue Spall Stress-Reference-Cited by-同舟云学术

Frost-salt Testing Non-air Entrained High-performance Fly-ash Concrete Part II: Parameter Study of Effect of Internal Cracking on Glue Spall Stress

Published:2024-06-01 Issue:1 Volume:70 Page:43-55
ISSN:2545-2819
Container-title:Nordic Concrete Research
language:en
Short-container-title:

Author:

Asadi Iman¹,Skjølsvold Ola²,Kanstad Terje³,Jacobsen Stefan³

Affiliation:

1. University for Continuing Education Krems , Department of Knowledge and Communication Management , Krems an der Donau , Austria .

2. Department of Architecture, Materials, and structures , SINTEF Community Strindvegen 4 , Trondheim , Norway

3. Norwegian University of Science and Technology , Department of Structural Engineering , Richard Birkelands vei 1A, 7034 Trondheim , Norway

Abstract

Abstract A parametric analysis of glue spall stress (concrete surface tensile stress at ice-discontinuities by differential thermal expansion ice-concrete) as affected by internal cracking in concrete in the CEN/TS 12390-9 salt-frost slab-test was made. Increasing differential thermal expansion ice-concrete (∆α) and reduced E-modulus and Poisson ratio (ν) due to internal cracking were used based on data from Part 1 of this study. For the concrete specimens in Part 1 of this study [1] glue spall stress increased by 14 % due to internal cracking whereas reduced ice thickness of 1 – 2 mm due to accelerated Liquid Uptake (LU) in wet freeze/thaw reduced glue spall stress by 34 to 65 %. LU should hence be accounted for in modelling scaling, both due to reduced ice thickness and increased ∆α due to internal cracking. Increased crack penetration depth and its effect on scaled particle size due to internal cracking were also analyzed.

Publisher

Walter de Gruyter GmbH

Link

https://www.sciendo.com/pdf/10.2478/ncr-2023-0016

Reference32 articles.

1. Asadi I, Skjølsvold O., Kanstad T., Jacobsen S. Frost-salt testing non-air entrained high-performance fly-ash concrete. Part I: Relations liquid uptake - internal cracking – scaling, submitted to NCR.

2. Skripkiūnas G, Nagrockienė D, Girskas G, Vaičienė M & Baranauskaitė : “ The cement type effect on freeze–thaw and deicing salt resistance of concrete”. Procedia engineering, 57, 2013, pp.1045-1051.

3. Zhao J, Cai G, Gao D & Zhao S : “Influences of freeze–thaw cycle and curing time on chloride ion penetration resistance of Sulphoaluminate cement concrete”. Construction and Building Materials, 2014. 53: pp. 305-311

4. EN 206. BSI Standards Publication Concrete : “Specification, performance, production and conformity”. Br Stand 2013:30.

5. ASTM International. (2016). Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete: C 457/C 457M-12. ASTM.6.