Effectiveness of prewetted fibres and aggregates in mitigating the autogenous shrinkage of high-strength concrete at an early age

Saje, Drago (author)

In this study, the influences of prewetted polypropylene fibres (PFs), basalt fibres (BFs), cellulose fibres (CFs), prewetted natural lightweight tuff aggregates (LTAs), artificial lightweight expanded clay aggregates (LECAs), and recycled brick aggregates (RBAs) on the early autogenous shrinkage and compressive strength of high-strength concrete (HSC) were investigated. Statistical analysis of variance (ANOVA) revealed a statistically significant difference between the reference concrete and some of the investigated concretes with prewetted materials. Among the prewetted fibres, PFs reduced autogenous shrinkage by 70% after one day and maintained the compressive strength at 96% after 28 days. Among the porous prewetted aggregates, LECAs (0–2 mm) were the most effective, reducing autogenous shrinkage by 97% and maintaining compressive strength at 107%.

• Language: English
• Keywords: high strength concrete, internal curing, prewetted fibres, prewetted aggregates, compressive strength, autogenous shrinkage, statistical analysis
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FGG - Faculty of Civil and Geodetic Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2025
• Number of pages: Str. 1029–1041
• Numbering: Vol. 23, iss. 5
• PID: 20.500.12556/RUL-168392
• UDC: 69:539.4
• ISSN on article: 1735-0522
• DOI: 10.1007/s40999-025-01079-z
• COBISS.SI-ID: 226611459
• Publication date in RUL: 11.04.2025

Record is a part of a journal

• Title: International journal of civil engineering
• Shortened title: Int. j. civ. eng.
• Publisher: Springer Nature, Iran University of Science and Technology, Iranian Society of Civil Engineering
• ISSN: 1735-0522
• COBISS.SI-ID: 19204374

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: beton visoke trdnosti, notranje strjevanje, predhodno namočena vlakna, predhodno namočen agregat, tlačna trdnost, avtogeno krčenje, statistična analiza

Projects

• Funder: ARIS - Slovenian Research and Innovation Agency
• Project number: P2-0158
• Name: Gradbene konstrukcije in gradbena fizika