Study of hydraulic lime grout injections in different porous media: An experimental study

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Grout injection is a widely used technique for masonry consolidation of multileaves masonries, aimed at increasing the compactness and to create links between the internal and external leaves that will improve shear, flexural and compressive resistances. The lack of information about the performance of hydraulic lime based grouts as a function of the porous media to be injected enhances the importance of a detailed research on the subject. Since it is hard to reproduce real masonry and because it is difficult to visualize what is happening inside the porous media being injected by grout, masonry samples were created by filling plexiglass cylinders with a fraction of limestone sands and crushed bricks. These materials are sieved to obtain different grain size distributions to enable the simulation of different permeabilities and internal structures for the masonry. The flow of the grout through the masonry depends on the fresh grout properties, such as stability, water retention and a rheological behaviour. Thus, the evaluation of the performance of the grout as function of porous media is firstly started by checking the intrinsic rheological properties of grout and then by controlling the injectability of masonry by injection tests on cylinders.

Original languageEnglish
Title of host publicationStructural Studies, Repairs and Maintenance of Heritage Architecture XIII
EditorsC. A. Brebbia
PublisherWIT Press
Pages431-442
Number of pages12
ISBN (Print)978-184564730-8
DOIs
Publication statusPublished - 2013
Event13th International Conference on Structural Repairs and Maintenance of Heritage Architecture, STREMAH 2013 - New Forest, United Kingdom
Duration: 25 Jun 201327 Jun 2013

Publication series

NameWIT Transactions on The Built Environment
PublisherWIT Press
Volume131
ISSN (Electronic)1743-3509

Conference

Conference13th International Conference on Structural Repairs and Maintenance of Heritage Architecture, STREMAH 2013
CountryUnited Kingdom
CityNew Forest
Period25/06/1327/06/13

Keywords

  • Brick porous media
  • Grout injection technique
  • Hydraulic lime grouts
  • Injectability tests
  • Limestone porous media
  • Multi-leaves masonry
  • Rheological properties
  • Water absorption coefficient

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