Long-term Mechanical Properties and Durabaility of Lime-spongilite Mortars

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F23%3APU145684" target="_blank" >RIV/00216305:26110/23:PU145684 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Long-term Mechanical Properties and Durabaility of Lime-spongilite Mortars
Original language description
This paper presents a study on partial replacement of lime binder with fine spongilite with the purpose of exploring a new application of this natural material as lime mortar additive. Standard air lime mortars were made by incorporating from 0% to 40% of spongilite powder in replacement to lime and their mechanical performances, microstructure, and durability were determined. The spongilite powder showed similar pozzolanic activity as natural zeolite or waste brick powder predicting an improvement in the mechanical properties and durability of lime mortars. As the replacement level in lime mortars increased, the amount of mixing water needed for the same mortar consistence decreased, and the performance properties of the mortars improved. The increase in strengths of mortars was manifested mainly in the long term of 180 and 365 days. The incorporation of fine spongilite led to the formation of slightly denser, more water absorptive, however, more frost resistant and salt crystallization resistant structure in air lime mortars. The effective use of spongilite powder as a supplementary material in air lime mortars was assessed to enhance their performance in building practice or to prepare feebly hydraulic mortars used in the past in constructions nowadays considered built heritage.
Czech name
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Czech description
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Project
<a href="/en/project/GA21-06582S" target="_blank" >GA21-06582S: Experimental and computational analysis of salt transport, accumulation, and crystallization in non-hydrophobized rendering mortars</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Conservation and Restoration of Historic Mortars and Masonry Structures
ISBN
978-3-031-31472-8
ISSN
2211-0844
e-ISSN
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Number of pages
11
Pages from-to
405-415
Publisher name
Springer Cham
Place of publication
neuveden
Event location
Ljubljana
Event date
Sep 21, 2022
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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