The influence of dry hydrated limes on the fresh and hardened properties of architectural injection grout

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

Dry hydrated lime is an air binder often used in architectural injection grouts. This study compared the influences of three commercially available dry hydrated limes on the injection grouts workability and mechanical properties. The main differences between the limes were in their chemical and mineralogical composition and Blaine specific surface area. The grouts were composed of dry hydrated lime, finely ground limestone filler, water, and super plasticiser. Subsequent results obtained revealed that the Blaine specific surface area is not directly related to the fresh grout properties. Grain size distribution and shape of lime particles and their aggregates in the water suspension are key parameters influencing the following fresh grout properties: fluidity, injectability, the mixtures stability, and water retention capacity. However, the lime injection grouts mechanical strengths were higher in relation to an increase in the content of portlandite and the Blaine specific surface area of the dry hydrate.

• Language: English
• Keywords: civil engineering, building materials, architectural injection grout, dry hydrated lime, particle density, specific surface area, workability, porosity, mechanical properties
• Work type: Scientific work
• Typology: 1.01 - Original Scientific Article
• Organization: FGG - Faculty of Civil and Geodetic Engineering
• Publication status: Published
• Publication version: Author Accepted Manuscript
• Submitted for review: 18.08.2021
• Article acceptance date: 23.09.2021
• Publication date: 26.09.2021
• Year: 2021
• Number of pages: [15] str.
• Numbering: Vol. 14, iss. 19/5585
• PID: 20.500.12556/RUL-132220
• UDC: 691
• ISSN on article: 1996-1944
• DOI: 10.3390/ ma14195585
• COBISS.SI-ID: 77933571
• Publication date in RUL: 18.10.2021

Record is a part of a journal

• Title: Materials
• Shortened title: Materials
• Publisher: MDPI
• ISSN: 1996-1944
• COBISS.SI-ID: 33588485

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.
• Licensing start date: 26.09.2021

Secondary language

• Language: Slovenian
• Keywords: gradbeništvo, gradbeni materiali, arhitekturna injekcijska mešanica, hidrirano apno v prahu, gostota delcev, razvita površina delcev, obdelavnost, poroznost, mehanske lastnosti

Projects

• Funder: Other - Other funder or multiple funders
• Funding programme: EU, MIZŠ: C3330-17-529030 "Raziskovalci-2.0-UL-FGG-529030"

• Funder: ARRS - Slovenian Research Agency
• Project number: P2-0185
• Name: Potresno inženirstvo