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

Saje, Drago (avtor)

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%.

• Jezik: Angleški jezik
• Ključne besede: high strength concrete, internal curing, prewetted fibres, prewetted aggregates, compressive strength, autogenous shrinkage, statistical analysis
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FGG - Fakulteta za gradbeništvo in geodezijo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2025
• Št. strani: Str. 1029–1041
• Številčenje: Vol. 23, iss. 5
• PID: 20.500.12556/RUL-168392
• UDK: 69:539.4
• ISSN pri članku: 1735-0522
• DOI: 10.1007/s40999-025-01079-z
• COBISS.SI-ID: 226611459
• Datum objave v RUL: 11.04.2025

Gradivo je del revije

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

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: beton visoke trdnosti, notranje strjevanje, predhodno namočena vlakna, predhodno namočen agregat, tlačna trdnost, avtogeno krčenje, statistična analiza

Projekti

• Financer: ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
• Številka projekta: P2-0158
• Naslov: Gradbene konstrukcije in gradbena fizika