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Evaluation of a rubble wall: case study



Title: Evaluation of a rubble wall: case study
Author(s): D.T. Biggs
Paper category : conference
Book title: RILEM Symposium on On Site Assessment of Concrete, Masonry and Timber Structures - SACoMaTiS 2008
Editor(s): L. Binda, M. di Prisco, R. Felicetti
Print-ISBN: 978-2-35158-061-5
e-ISBN: 978-2-35158-075-2
Publisher: RILEM Publications SARL
Publication year: 2008
Pages: 663 - 671
Total Pages: 9
Language: English


Abstract: Constructed in 1871, the west wing of a four-story university building has walls that are approximately 56 cm thick and constructed of a local siltstone. The composition of the interior of the wall is rubble fill. Prior to 1990, some wall areas experienced a delamination of the outer leaf. Repairs included removing and reconstructing the outer leaf.
Since those initial repairs, outer-leaf bowing and delamination have continued in other wall areas. An evaluation study was begun in 2000 to determine the feasibility of stabilizing the walls without reconstruction.
This paper will present the combination of diagnostic techniques being used to evaluate the walls. The results will guide in the development of a restoration program. Techniques include monitoring for building settlement, selective probes, a test program of injection using natural cement grout, surface penetrating radar scans prior to and after injection, stitch anchor testing, and thermal imaging.


Online publication: 2009-05-26
Publication type : full_text
Public price (Euros): 0.00