The influence of animal glue as an additive on the properties of lime architectural grouts

Padovnik, Andreja (avtor), Bokan-Bosiljkov, Violeta (avtor)

Organic additives from plant and animal extracts were commonly used in lime mortar in the past to improve and modify its properties. In modern times, they have been replaced by inorganic additives. The objective of this research is to investigate the influence of fish animal glue and the role of the filler particle size distribution on the fresh and hardened properties and durability of lime grouts. Wet density, water retention, fluidity, and injectability were tested in the fresh state. It was found that the particle size distribution of the selected filler, which can increase the packing density of the solid particles of the grout, and the W/B ratio have a great influence on water retention and fluidity. In the hardened state, porosity and compressive and splitting tensile strength were evaluated on 90-day- and 365-day-old specimens. The presence of animal glue improved the mechanical properties, due to a higher carbonation rate. The combination of the two fillers that resulted in a better packing of filler particles decreased the splitting tensile strength of the grout. To investigate the durability of the selected grouts, adhesion strength was measured on discsandwich models after non-accelerated and accelerated aging. The results show that the adhesive strength of grouts aged under laboratory conditions is lower than that of grouts subjected to accelerated aging.

• Jezik: Angleški jezik
• Ključne besede: civil engineering, architectural injection grout, dry hydrated lime, organic additive, animal glue, mechanical properties, durability
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FGG - Fakulteta za gradbeništvo in geodezijo
• Status publikacije: Objavljeno
• Različica publikacije: Recenzirani rokopis
• Leto izida: 2023
• Št. strani: 17 str.
• Številčenje: Vol. 15, iss. 17, art. 12903
• PID: 20.500.12556/RUL-151781
• UDK: 691
• ISSN pri članku: 2071-1050
• DOI: 10.3390/su151712903
• COBISS.SI-ID: 162434051
• Datum objave v RUL: 20.10.2023

Gradivo je del revije

• Naslov: Sustainability
• Skrajšan naslov: Sustainability
• Založnik: MDPI
• ISSN: 2071-1050
• COBISS.SI-ID: 5324897

Sekundarni jezik

• Jezik: Slovenski jezik
• Naslov: Vpliv dodatka živalskega lepila na lastnosti arhitekturnih injekcijskih mešanic
• Ključne besede: gradbeništvo, arhitekturna injekcijska mešanica, hidrirano apno, organski dodatek, živalsko lepilo, mehanske lastnosti, obstojnost

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0185
• Naslov: Potresno inženirstvo