Assessment of the injection of grouts to repair cracks in rammed earth

Author(s): Rui A. Silva, Oriol Domínguez Martínez, Daniel V. Oliveira, Eduardo Pereira, Edgar Soares
Paper category: Proceedings
Book title: Proceedings of the International RILEM Conference
Materials, Systems and Structures in Civil Engineering 2016 segment on
Historical Masonry
Editor(s): Inge Rörig-Dalgaard and Ioannis Ioannou
ISBN: 978-2-35158-178-0
e-ISBN: 978-2-35158-179-7
Publisher: RILEM Publications SARL
Publication year: 2016
Pages: 36-45
Total Pages: 10
Language : English

Abstract: Rammed earth constructions are known for their high seismic vulnerability, which menaces
their preservation and puts in risk the life of millions of people living in regions with important
seismic hazard. The poor conservation condition of many of these constructions largely
contributes for the aforementioned situation. The presence of cracks is one common type of
damage occurring in the walls, which debilitates their structural behaviour both for in-plane and
out-of-plane loading. The injection of grouts has been studied recently as a solution to repair
this type of damage. However, the repair effectiveness of this technique needs further research.
This paper presents an experimental program, where the effectiveness of the injection of a mud
and a commercial grout base on hydraulic lime for repairing cracks in rammed earth is
compared. Diagonal compression test were carried out on wallets before and after repair, where
the response was monitored with Digital Image Correlation (DIC). Furthermore, sonic tests
were used as a technique to assess the repair efficiency by non-destructive means. In general,
both types of grouts presented similar performance.

Online publication : 2016
Publication type : full_text
Public price (Euros) : 0.00