Efficiency of field test methods for evaluation of non-structural injection grouts in Slovenian conservation practice

Author(s): Andreja Padovnik, Violeta Bokan Bosiljkov
Paper category: Proceedings
Book title: Proceedings of the 5th Historic Mortars Conference
Editor(s):José Ignacio Álvarez, José María Fernández,Íńigo Navarro, Adrián Durán, Rafael Sirera
ISBN:978-2-35158-221-3
e-ISBN: 978-2-35158-222-0
Publisher: RILEM Publications SARL
Publication year: 2019
Pages: 1374-1387
Total Pages: 14
Language : English

Abstract: Simple field test methods are designed for quick quality control of non-structural injection
grouts in fresh state and after drying. The field tests adapt to conditions at the conservation
site, which decrease their accuracy and reproducibility.
The aim of research reported in this paper was to assess the efficiency of selected field test
methods based on results provided by Slovenian conservators during the workshop. The
results show that in most cases the same test performed by different conservators gives
comparable data. Higher variation of test results was observed for the methods where
viscosity of the grout and content of the air considerably influence the test results. The
Slovenian conservators selected injectability with a syringe, expansion and bleeding, wet
density, water retention and realise and drying shrinkage with mortar cup, as tests that
enable efficient evaluation of properties at the conservation site. However, adequate
training is needed for Slovenian conservators to acquire required skills to properly use
selected field test methods. Otherwise they can be misguided by obtained test results.

Online publication : 2019
Publication type : full_text
Public price (Euros) : 0.00