Durability of Slurry Infiltrated Fiber Concrete under Chloride and Sulfate Exposure

Seror Abdulwahid; S. Z. Abeer; Tumadhir Merawi Borhan

doi:10.71229/6hbn7y41

Authors

Seror Najm Abdulwahid Department of Civil Engineering, Collage of Engineering, University of Al-Qadisiya
S. Z. Abeer Department of Roads & Transport, Collage of Engineering, University of Al-Qadisiya
Tumadhir Merawi Borhan Department of Civil Engineering, Collage of Engineering, University of Al-Qadisiya

DOI:

https://doi.org/10.71229/6hbn7y41

Keywords:

SIFCON; Durability; Fiber rienforced.

Abstract

Despite the increasing use of Slurry Infiltrated Fiber Concrete (SIFCON) in aggressive service environments, limited information is available regarding its durability under sulfate exposure. Therefore, this study examines the long-term durability performance of SIFCON exposed to different environmental conditions. The experimental program conducted in this study involved preparing SIFCON specimens reinforced with 7% micro steel fibers by volume. These specimens were subjected to different curing environments including water curing, sulfate-rich environments, and combined chloride solutions. Compressive strength test was performed at curing ages of 7, 28, 56, and 90 days, while splitting tensile and flexural strengths were evaluated at 90 days. The results indicated that SIFCON specimens exhibited high compressive strength at early ages, while only slight strength degradation was observed at later ages under the aggressive conditions. The reduction in compressive strength did not exceed 16 % compared with water-cured specimens, while, tensile and flexural strength remained high at 90 days. This behavior shows the high durability of SIFCON in salt rich environments and confirms its suitability for structural applications under harsh conditions.

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