Lightweight pumice mortars for repair of historic buildings –Assessment of physical parameters, engineering properties and durability

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F23%3APU149045" target="_blank" >RIV/00216305:26110/23:PU149045 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21110/23:00368386

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0950061823029926" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0950061823029926</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.conbuildmat.2023.133275" target="_blank" >10.1016/j.conbuildmat.2023.133275</a>

Result language

angličtina

Original language name

Lightweight pumice mortars for repair of historic buildings –Assessment of physical parameters, engineering properties and durability

Original language description

The subject of the presented research was an experimental analysis of physical, engineering and durability parameters of lightweight mortars intended for the repair of historical buildings. Compatibility criteria, the requirements of technical standards and guidelines, and last but not least, previously published research results dealing with the development of mortars for repair delicate historic structures were taken into account in the design of mortar composition. Crushed pumice of a similar grain size was used to lighten the reference lime-based mortar and natural hydraulic lime mortar with quartz filler. Replacement of quartz sand with pumice was 25, 50, 75 and 100% by volume. The use of pumice allowed the fundamental physical, mechanical, hygric, thermal and durability parameters of the lightweight mortars to be such that they met the standard requirements for repair mortars and the heritage conservation requirements for compatibility with the original materials of historic masonry. The main finding was the fact that by replacing sand with pumice, a significant increase in the porosity of the mortars was achieved, while maintaining sufficient mechanical strength due to the pozzolanic reaction of the pumice. Mortars based on natural hydraulic lime have become more resistant to frost and salt crystallization. The advantage of the developed mortars was their low thermal conductivity and high water vapor permeability, which made them suitable for use on damp masonry, which is a substantial scientific contribution of the manuscript.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20101 - Civil engineering

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

Name of the periodical

Construction and building materials

ISSN

0950-0618

e-ISSN

1879-0526

Volume of the periodical

neuveden

Issue of the periodical within the volume

133275

Country of publishing house

GB - UNITED KINGDOM

Number of pages

20

Pages from-to

„“-„“

UT code for WoS article

001106655000001

EID of the result in the Scopus database

2-s2.0-85170643610