Performance Evaluation of Lime-Based Grout Used for Consolidation of Brick Masonry Walls
Publication: Journal of Materials in Civil Engineering
Volume 31, Issue 6
Abstract
This study investigated the rheological, physical, and mechanical properties and injectability of commercially available lime-based grout, and evaluated the performance of the grout injection via cylinder injection and wall tests. Cylinder injection tests were conducted on specimens which were prepared with three different filling materials; the first included only crushed brick particles, the second was a combination of crushed brick particles and hydraulic lime mortar particles, and the third was a combination of crushed brick particles and air lime mortar particles. Traditionally manufactured brick and laboratory-made lime mortars were used in the production of test walls. Historic brick masonries, especially from the Roman and Byzantine periods, were taken into account both in production of the mortars and construction of the test walls. These brick walls were subjected to incremental lateral loading under a uniformly distributed vertical load. Cracks induced by the loading were repaired with grout injection. New cracks formed at different locations, which were close to the previous cracks, during the reloading. The ratio of the increase in the lateral load for a specific crack width was in the range 33%–54% after the grout injection. This revealed that adequate adherence between the wall and the grout was provided.
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Acknowledgments
This work was supported by research grants of The Scientific and Technological Research Council of Turkey (TUBITAK/Project Nos. 111M568 and 114M256) and Yildiz Technical University Research Foundation (Project Nos. 2011-05-01-DOP01 and 2014-05-01-DOP02). The authors thank all supporting institutions, and Letoon Architecture for injection of the grout.
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Published In
Journal of Materials in Civil Engineering
Volume 31 • Issue 6 • June 2019
Copyright
©2019 American Society of Civil Engineers.
History
Received: May 15, 2018
Accepted: Nov 9, 2018
Published online: Mar 20, 2019
Published in print: Jun 1, 2019
Discussion open until: Aug 20, 2019
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