Performance evaluation of strip parquet flooring panels after long-term, in-service exposure
Treść / Zawartość
Due to its extraordinary hardness, decorative appearance and possible small dimensions, black locust wood is assumed to be an excellent material for strip parquet flooring. The favourable colour changes achieved by controlled steam treatment further increased the utilization potential of this material. Flooring was installed on a student dormitory stair landing in heavy use. Due to the flooring’s very high exposure, 5 years was considered a long enough period to compare the different face layer materials during in-service test. Oil was used as a coating to avoid the remarkable protecting effect of hard film-forming varnishes (acrylic, etc.) against abrasion. Besides the flooring turning grey (all face layers no matter what treatment), only some delamination occurred at certain places after five years in service. The laboratory test results for abrasion resistance, dimensional changes and deformation were analysed. Additionally, the Brinell-Mörath hardness after indoor service and the abrasion due to indoor service were analysed. In terms of abrasion resistance, dimensional changes and deformation, no essential differences were found between the oil-treated and untreated black locust wood on the one hand, and the control oak specimen on the other. Long-term tests showed that, after 5 years in service, the Brinell-Mörath-hardness decreased considerably for all the tested materials. The type of section and the presence of wide rays influenced the roughness and the waviness of the surface after indoor service.
Bibliogr. 23 poz., rys.
- Simonyi Karoly Faculty of Engineering, Wood Sciences and Applied Arts, University of West Hungary, Sopron, Hungary, firstname.lastname@example.org
- Simonyi Karoly Faculty of Engineering, Wood Sciences and Applied Arts, University of West Hungary, Sopron, Hungary, email@example.com
- Simonyi Karoly Faculty of Engineering, Wood Sciences and Applied Arts, University of West Hungary, Sopron, Hungary, firstname.lastname@example.org
- Simonyi Karoly Faculty of Engineering, Wood Sciences and Applied Arts, University of West Hungary, Sopron, Hungary, email@example.com
- Boonstra M.J., Rijsdijk J.F., Sander C., Kegel E., Tjeerdsma B., Militz H., van Acker J., Stevens M. : Microstructural and physical aspects of heat treated wood. Part 2. Hardwoods. Maderas. Ciencia y tecnología 8 : 209–218
- Castro G., Zanuttini R. : Multi-laminar wood: Manufacturing process and main physical-mechanical properties. Forest Products Journal 54 : 61–67
- Dianiskova M., Babiak M., Tolvaj L. : Colour homogenisation of cherrywood (Cerasus avium l.) and black locust (Robinia pseudoaccacia l.) during steaming. Wood Research 53 : 45–58
- Drerup M.J., Erdem I., Anthony R.W. : Trouble under foot – In situ and laboratory investigation of engineered wood flooring. Proceedings of the 6th Congress on Forensic Engineering 2012, 31th October – 3th November, San Francisco, CA, USA
- Esteves M.B., Pereira H.M. : Wood modification by heat treatment: a review. Bioresources 4 : 370–404
- Fengel D., Wegener G. : Wood: Chemistry, Ultrastructure, reactions. Walter de Gruyter, Berlin, Germany
- FEP, European Federation of the Parquet Industry : The European parquet industries in 2008. A challenging year for the European Parquet Sector. pp 1–5
- Fojutowski A., Noskowiak A., Kropacz A. : Physical and mechanical properties and resistance to fungi of Scots pine and birch wood modified thermally and using natural oil. Drewno 52 : 43–62
- Gunuz G., Korkut S., Aydemir D., Bekar Í. : The density, compression strength and surface hardness of heat treated Hornbeam (Carpinus betulus) wood. Maderas, Ciencia y Tecnología 11 : 61–70
- Molnár S., Bariska M. : Wood species of Hungary. Szaktudás Kiadó Ház Rt, Budapest.
- Orłowski K.A., Walichnowski A. : Analiza ekonomiczna produkcji warstw licowych podłóg klejonych warstwowo (Economic analysis of upper layer production of engineered floorings). Drewno 56 : 115–126
- Standfest G., Zimmer B. : The surface hardness of thermally treated woods. Poster presentation at 62nd International Convention of the Forest Products Society, 22–24 June, St. Louis, USA
- Stanzl-Tschegg S., Beikircher W., Loidl D. : Comparison of mechanical properties of thermally modified wood at growth ring and cell wall level by means of instrumented indentation tests. Holzforschung 63 : 443–448
- Todaro L. : Effect of steaming treatment on resistance to footprints in Turkey oak wood for flooring. European Journal of Wood and Wood Products 70 : 209–214
- Todaro L., Dichicco P., Moretti N, D’Auria M. : Effect of combined steam and heat treatments on extractives and lignin in sapwood and heartwood of turkey oak (Quercus cerris L.) wood. Bioresources 8 : 1718–1730
- Tolvaj L., Molnár S., Németh R., Varga D. : Colour modification of black locust depending on steaming parameters. Wood Research 55 : 81–88
- Tolvaj L., Németh R., Varga D., Molnár S. : Colour homogenisation of beech wood by steam treatment. Drewno 52 : 5–18
- Varga D., van der Zee M.E. : Influence of steaming on selected wood properties of four hardwood species. Holz als Roh- und Werkstoff 66 : 11–18
- Yilgor N, Unsar O, Kartal N. : Physical, mechanical, and chemical properties of steamed beech wood. Forest Products Journal 51 [11–12]: 89–93
- Źivković V., Prša I., Turkulin H., Sinković T., Jirouš-Rajković V. : Dimensional stability of heat treated wood floorings. Drvna Industrija 59 : 69–73
- List of standards
- ASTM D 4060:1995 Standard test method for abrasion resistance of organic coatings by the Taber abraser
- EN 1534:2011 Wood flooring – Determination of resistance to indentation – Test method.
- EN 318:2002 Wood based panels – Determination of dimensional changes associated with changes in relative humidity