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Requirements for the choice of mortar and grouts for consolidation of three-leaf stone masonry walls



Title: Requirements for the choice of mortar and grouts for consolidation of three-leaf stone masonry walls
Author(s): M.R. Valluzzi
Paper category : conference
Book title: Workshop Repair Mortars for Historic Masonry
Editor(s): C. Groot
Print-ISBN: None
e-ISBN: 978-2-35158-083-7
Publisher: RILEM Publications SARL
Publication year: 2009
Pages: 382 - 397
Total Pages: 16
Nb references: 18
Language: English


Abstract: In this work, the experimental results on the application of natural hydraulic-lime based injections and repointing intervention techniques to three-leaf stone masonry walls are presented. Based on studies available in literature, a procedure for the choice of injection grouts, aimed at optimizing the walls injectability is proposed. The selection is firstly performed by checking the intrinsic rheological properties of grouts and then by controlling the injectability of masonry by injection tests on cylinders. Different particle-size distributions simulating the infill of multi-leaf stone masonry walls have been considered, as well as the influence of different additives in the grouts. The mechanical behaviour of the consolidated walls is discussed and an analytical formulation for the prediction of the compressive strength of injected walls is proposed for compatible low-strength grouts.


Online publication: 2009-06-08
Publication type : full_text
Public price (Euros): 0.00