journal article·2015-12

Semi-destructive in situ tests as support to the assessment of a conservation process

D.F. Henriques, A.S. Neves

Publisher page

Abstract

Abstract This paper refers to the assessment on site by semi-destructive testing (SDT) methods of the consolidation efficiency of a conservation process developed by Henriques (2011) for structural and non-structural pine wood elements in service. This study was applied on scots pine wood ( Pinus sylvestris L.) degraded by fungi after treatment with a biocidal product followed by consolidation with a polymeric product. This solution avoids substitutions of wood moderately degraded by fungi, improving its physical and mechanical characteristics. The consolidation efficiency was assessed on site by methods of drill resistance and penetration resistance. The SDT methods used showed good sensitivity to the conservation process and could evaluate their effectiveness.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Wood Treatment and Properties · Building materials and conservation · Materials Engineering and Processing

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (25)

Show source-provided references
1. M.D. Henriques, Treatment and consolidation of pine wood degraded by fungi in structural elements of ancient buildings. (In portuguese) (Ph.D. thesis), Instituto Superior Técnico, Lisbon, Portugal, 2011.
2. Consolidation of deteriorated wood with soluble resins10.1179/019713685806028141 ↗
3. Consolidation of painted wooden artefacts10.1179/sic.1974.020 ↗
4. Technologies for wood preservation in historic preservation10.1023/A:1012468326445 ↗
5. Comparative study of resins for the consolidation of wooden objects10.1179/sic.1986.31.1.38 ↗
6. A. Unger, W. Unger, Conservation of wooden cultural property, Proceedings of The International Research Group on Wood Preservation, IRG/WP 94–30038, Bali, Indonesia, 1994.
7. Unger · 2001
8. Microbiological deterioration and degradation of synthetic polymeric materials: recent research advances10.1016/S0964-8305(02)00177-4 ↗
9. F.C. Jorge, L. Nunes, C. Botelho, Boron in wood preservation: problems, challenges and proposed solutions. An overview on recent research. Journal of the Faculty Science Technology, University Fernando Pessoa, Portugal, 2004, 1, 3–15.
10. S.N. Kartal, W.J. Hwang, K. Shinoda, Y. Imamura, Laboratory evaluation of boron-containing quaternary ammonia compound, didecyl dimethyl ammonium tetrafluoroborate (DBF) for control of decay and termite attack and fungal staining of wood. Holz Roh – Werkstoff, 2006, 64, 62–67.10.1007/s00107-005-0050-3 ↗
11. D.F. Henriques, L. Nunes, J. de Brito, “An experimental approach to the treatment and consolidation of degraded timber elements from a XIX century building”. SHATIS – International Conference on Structural Health Assessment of Timber Structures. LNEC, Lisbon, Portugal, 2011, pp. 47–48.
12. Consolidating preservative-treated wood: combined mechanical performance of boron and polymeric products in wood degraded by Coniophora puteana10.1016/j.culher.2012.11.008 ↗
13. Mechanical evaluation of timber conservation processes by bending tests10.4028/www.scientific.net/AMR.778.612 ↗
14. F. Rinn, ‘One minute pole inspection with Resistograph micro drillings’, in: In-tern. Conf. on wood poles and piles, March 21–23, Fort Collins, Colorado, USA, 1994.
15. A. Feio, Inspection and Diagnosis of Historical Timber Structures: NDT Correlations and Structural Behavior (Ph.D. thesis), Universidade do Minho, Braga, Portugal, 2006.
16. L. Palaia, J. Monfort, R. Sánchez, L. Gil, A. Álvarez, V. López, S. Tormo, C. Pérez, P. Navarro, ‘Assessment of timber structures in service by using combined methods of non-destructive testing together with traditional ones’, in: 9th Inter. Conf. on NDT of art, Jerusalem, Israel, 2008.
17. Structural analysis of two King-post timber trusses: non-destructive evaluation and load-carrying tests10.1016/j.conbuildmat.2009.08.025 ↗
18. T. Tannert, ‘Drill Resistance’, in: P. Dietsch, J. Koehler (Eds.), Cost E55 – Assessment of Timber Structures, Shaker Verlag GmbH, 2010, 72–74.
19. P. Dietsch, M. Hösl, ‘Penetration Resistance’, in: P. Dietsch, J. Koehler (Eds.), Cost E55 – Assessment of Timber Structures, Shaker Verlag GmbH, 2010, 68–69.
20. Relationships between mechanical properties, weight loss and chemical composition of wood during incipient brown-rot decay
21. A.S. Neves, Assessment, treatment and consolidation of timber in ancient buildings (In portuguese) (Master thesis), Instituto Superior de Engenharia de Lisboa, Lisbon, Portugal, 2013.
22. J. Machado, In situ Evaluation of the Reference Properties of Structural Timber Members. Use of Available Tools and Information. Structural Health Assessment of Timber Structures, Trans Tech Publications Ltd, Switzerland, Trento, Italy, 2013, 137–144.10.4028/www.scientific.net/AMR.778.137 ↗
23. C. Oliveira, and A. Cabrita, Classification by types of housing (In portuguese), LNEC, Lisbon, Portugal, 1985.
24. L. Nunes, et al., Wood consolidation by impregnation with reactive polymers. International Conference Conservation of Historic Wooden Structures. Collegio degli Ingenieri della Toscana, Florence, Italy, 2005, 323–327.
25. Advances in situ evaluation of timber structures10.1002/pse.170 ↗