Properties of new thermal insulation material from low-quality pine wood
DOI:
https://doi.org/10.31548/forest2020.02.091Abstract
Recently growing number of low quality wood in Ukraine, damaged by fungal sap color, stem rot leads to finding ways to use it. Today this wood is used mainly for the manufacture of wood-fuels facility in industrial and municipal energy. A possible way to use it is making insulation material from wood wool. The existing prototype of such material - fibrolite contains woody wool of healthy wood but during burning emits toxic chemicals.
The construction of wooden wall panels, which include a frame of lumber and thermal insulation material of wood wool, made of low quality pine wood and binder. The binder used were inorganic (liquid glass) and organic-mineral (PVA) dispersion with the addition of flame retardant. Investigation of fire resistance, acoustic and thermal insulation of material from low quality pine wood have proved that it meets the regulatory requirements and can be used in building structures. To develop technological requirements for the manufacture of wall panels using low-quality pine wood, it is necessary to determine their density, sorption capacity and bio-stability. For this purpose, samples of thermal insulation material with different content of mass parts of wood wool and binder were made.
The density of specimens of insulating material (145‒250 kg/m3), which is close to the popular hard thermal insulation materials, has been determined.
Experimental studies of moisture absorption, sorption capacity and swelling values indicated that the effect of moisture on the properties of insulating material and its shape resistance are within the permissible values of regulatory documents for construction products. Wood treated with binders found to be used for the manufacture of insulation material has been found to have high biological resistance, which is more than 5-6 times the bio-resistance of untreated wood.
Keywords: pine wood, low-quality wood, insulation material, wood wool, specific gravity, moisture absorption, sorption capacity, biological resistance.
References
Combating root sponge in the forests of Chernihiv region. (1966). Proceedings of the scientific and technological meeting. Chernihiv [in Russian].
Kaufman, B. N. (1955). Thermal Conductivity of Building Materials. Moscow: Gosstrojizdat [in Russian].
Marchenko, N. V., Novitsky, S. V., & Zavialov, D. L. (2016). To the question of the use of low quality pine wood. Annals of Warsaw University of Life Sciences - SGGW Forestry and Wood Technology, 95, 242-245 [in Russian].
Marchenko, N. V., Novitsky, S. V., & Zavialov, D. L. (2017). On the possibility of using low quality pine wood in construction. Scientific Bulletin of UNFU of Ukraine, 266, 211-219 [in Ukrainian].
Misra, J. K., Tewari, J. P., Deshmukh, S. K., & Vágvölgyi, C. (2014). Fungi from different substrates. CRC Press. https://doi.org/10.1201/b17646
Novitsky, S. V., Marchenko, N. V., & Zavialov, D. L. (2017). Water absorption capacity of dry pine wood. Scientific Bulletin of UNFU of Ukraine, 278, 194-200 [in Ukrainian].
State standard of Ukraine. (1997). In Building materials. Materials and products construction heat-insulating. Test methods (DSTU B В.2.7-38-95). Kyiv: State Committee of Ukraine for Urban Development and Architecture [in Ukrainian].
Thousands of hectares - cataclysmic pine forests dry up in Cherkassy Date of renovation. (2017). Available at https://lis-ck.gov.ua/?p=9627 [in Ukrainian].
Tsapko, Y. V, Zavialov, D. L., Bondarenko, O. P., Pinchevska, O. O., Marchenko, N. V., & Huziy, S. H. (2019). Development of fire-resistant heat and sound insulation boards of wood wool. Eastern-European Journal of Enterprise Technologies, 3/10 (99), 24-31.https://doi.org/10.15587/1729-4061.2019.166375
Tsapko, Y. V., Zavialov, D. L., Bondarenko, O. P., Marchenko, N. V., Mazurchuk, S. M., & Horbachova, O. U. (2019). Determination of thermophysical characteristics of dry pine timber construction products. Eastern-European Journal of Enterprise Technologies, 4/10 (100), 37-43. https://doi.org/10.15587/1729-4061.2019.175346
Downloads
Published
Issue
Section
License
Relationship between right holders and users shall be governed by the terms of the license Creative Commons Attribution – non-commercial – Distribution On Same Conditions 4.0 international (CC BY-NC-SA 4.0):https://creativecommons.org/licenses/by-nc-sa/4.0/deed.uk
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
