Abstract
Geopolymer binders are an emerging class of mineral polymer that can be manufactured from natural raw materials and industrial byproducts containing high amounts of silica (Si) and alumina (Al) in mineral compositions. Various ratios of materials used for manufacturing geopolymer binder have been tested to evaluate the bonding performance of geopolymers with wood by means of tests performed on an automated bonding evaluation system (ABES). Tests with a binder based on sodium silicate water glass (Na 50T) are partly promising, which resulted only 10% lower shear strength than that based on urea formaldehyde. The binder characteristics were significantly influenced by changing the ratio of SiO2:M2O (M=Na or K) and the ratio solid content to chemical base in the water glass. Expectedly, increasing press temperatures and pressing times showed a positive correlation with the curing performance of geopolymer binder. It was also demonstrated that the binder properties can be changed in wide ranges to obtain binders which fulfill the minimum requirements set by industrial users.
Acknowledgments
The work presented was sponsored by the Swiss Krono Group. The financial support received is gratefully acknowledged. The authors would also gratefully acknowledge the Wöllner GmbH and Ferropem companies for supplying materials.
References
Alomayri, T., Shaikh, F.U.A., Low, I.M. (2013) Characterisation of cotton fibre-reinforced geopolymer composites. Compos. Part. B-Eng. 50:1–6.10.1016/j.compositesb.2013.01.013Suche in Google Scholar
Ambroise, J., Maximilien, S., Pera, J. (1994) Properties of metakaolin blended cements. Adv. Cem. Based. Mater. 1:161–168.10.1016/1065-7355(94)90007-8Suche in Google Scholar
Asadi, M., Nemati, A., Naghizadeh, R., Arzani, K., Fahim, J. (2013) Effect of temperature and activator molar of Na2O to SiO2 in the process of synthesis and microstructure of cement geopolymer. Adv. Mat. Res. 1:3–9.Suche in Google Scholar
Bing-hui, M., Zhu, H., Xue-min, C., Yan, H., Si-yu, G. (2014) Effect of curing temperature on geopolymerization of metakaolin-based geopolymers. Appl. Clay. Sci. 99:144–148.10.1016/j.clay.2014.06.024Suche in Google Scholar
Chen, R., Ahmari, S., Zhang, L. (2014) Utilization of sweet sorghum fiber to reinforce fly ash-based geopolymer. J. Mater. Sci. 49:2548–2558.10.1007/s10853-013-7950-0Suche in Google Scholar
Cheng, T.W., Chiu, J.P. (2003) Fire-resistant geopolymer produced by granulated blast furnace slag. Miner. Eng. 16:205–210.10.1016/S0892-6875(03)00008-6Suche in Google Scholar
Davidovits, J. (2002) 30 Years of successes and Failures in geopolymer applications. Market trends and potential breakthroughs. Geopolymer Conference, Melbourne, Australia.Suche in Google Scholar
Davidovits, J. (2013). Geopolemer cement, a review. Technical paper. Institute of Geopolymere. p. 11.Suche in Google Scholar
Dunky M. (1997) Analysis of formaldehyde condensation resins for the wood based panels industry: status and new challenges. In: Proceedings of the 7th European Panels Products Symposium. Eds. Hague, Loxton, Bolton, Mott. Liandudno, North Wales, UK. p. 217.Suche in Google Scholar
Ferra, J.M.M., Ohlmeyer, M., Mendes, A.M., Costa, M.R.N., Carvalho, L.H., Magalhaes, F.D. (2011) Evaluation of urea-formaldehyde adhesives performance by recently developed mechanical tests. Int. J. Adhes. Adhes. 31:127–134.10.1016/j.ijadhadh.2010.11.013Suche in Google Scholar
Gouny, F., Fouchal, F., Maillard, P. Rossignol, S. (2012) A geopolymer mortar for wood and earth structures. Constr. Build. Mater. 36:188–195.10.1016/j.conbuildmat.2012.04.009Suche in Google Scholar
Gouny, F., Fouchal, F., Maillard, P. Rossignol, S. (2014) Study of the effect of siliceous species in the formation of a geopolymer binder: understanding the reaction mechanisms among the binder, wood, and earth brick. Ind. Eng. Chem. Res. 53: 3559–3569.10.1021/ie403670cSuche in Google Scholar
Heah, C.Y., Kamarudin, H., Mustafa Al Bakri, A.M., Bnhussain, M., Luqman, M., Khairul Nizar, I., Ruzaidi, C.M., Liew, Y.M. (2012) Study on solids-to-liquid and alkaline activator ratios on kaolin-based geopolymer. Cons. Build. Mater. 35:912–922.10.1016/j.conbuildmat.2012.04.102Suche in Google Scholar
Heinemann, C. Characterization of the curing process of adhesives in wood- particle matrices by evaluation of mechanical and chemical kinetics. Ph.D Dissertation, Hamburg: Institute for Wood Technology, University of Hamburg, 2004.Suche in Google Scholar
Humphrey, P.E. Device to test adhesive bonds. United States Patent, US005176028A. The State of Oregon Acting by and through the Oregon State Board of Higher Education on behalf of Oregon State University, Eugne, OR, USA, 1993.Suche in Google Scholar
Packham, D.E. Handbook of Adhesion. John Wiley & Sons, Ltd., West Sussex, UK, 2005.10.1002/0470014229Suche in Google Scholar
Pizzi, A. (2014) Synthetic adhesives for wood panels. Rev. Adhes. Adhes. 2:85–126.10.7569/RAA.2013.097317Suche in Google Scholar
Pizzi, A., Mittal, K.L. Handbook of Adhesive Technology. Marcel Dekker AG, Basel, Switzerland, 2003.10.1201/9780203912225Suche in Google Scholar
Provis, J.L., van Deventer, J.S.J. Geopolymers; Structures, Processing, Properties and Industrial Applications. Woodhead Publishing Limited, Oxford Cambridge, New Delhi, 2009.Suche in Google Scholar
Prud’homme, E., Michaud, P., Peyratout, C., Smith, A., Rossignol, S., Joussein, E., Sauvat, N. (2010) Geomaterial foam to reinforce wood. Strategic materials and computational design: ceramic engineering and science proceedings, 10.1002/9780470944103.ch1, 31:1–8.Suche in Google Scholar
Rashad, A.M. (2013a). A comprehensive overview about the influence of different additives on the properties of alkali-activated slag – a guide for civil engineer. Constr. Build. Mater. 47:29–55.10.1016/j.conbuildmat.2013.04.011Suche in Google Scholar
Rashad, A.M. (2013b). Alkali-activated metakaolin: a short guid for civil engineer – an overview. Constr. Build. Mater. 41:751–765.10.1016/j.conbuildmat.2012.12.030Suche in Google Scholar
Sarmin, S.N., Welling J., Krause, A., Shalbafan, A. (2014) Investigating the possibility of geopolymer to produce inorganic-bonded wood composites for multifunctional construction material–a review. BioResources. 9:7941–7950.10.15376/biores.9.4.SarminSuche in Google Scholar
Soleimani, M.A., Naghizadeh, R., Mirhabibi, A.R., Golestanifard, F. (2012) Effect of calcination temperature of the kaolin and molar Na2O/Si2O activator ratio on physical and microstructural properties of metakaolin based geopolymers. Iran J. Mater. Sci. Eng. 9:43–51.Suche in Google Scholar
Xu, H., van Deventer, J.S.J. (2000) The geopolymerisation of alumino-silicate minerals. Int. J. Miner. Process. 59:247–266.10.1016/S0301-7516(99)00074-5Suche in Google Scholar
Yunsheng, Z.H., Wei, S., Zongjin, L. (2010) Composition design and microstructural characterization of calcined kaolin-based geopolymer cement. Appl. Clay. Sci. 47:271–275.10.1016/j.clay.2009.11.002Suche in Google Scholar
©2016 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Original Articles
- UV-protection of wood surfaces by controlled morphology fine-tuning of ZnO nanostructures
- Solid-state 29Si NMR and FTIR analyses of lignin-silica coprecipitates
- Monitoring of free phenol content in lignosulfonates by ClO2 titration and UV difference spectroscopy
- Self-assembly of kraft lignin into nanospheres in dioxane-water mixtures
- Determination of the stability constant of the calcium binding ligand in black liquor (BL) by potentiometric titration
- Thermo-hydro treated (THT) birch veneers for producing plywood with improved properties
- Reactions between peracetic acid and lipophilic extractives – methodologies and implications in post bleaching of kraft pulps
- Geopolymers as potential new binder class for the wood based composite industry
- Assessing the role of adhesives in durability of laminated veneer lumber (LVL) by fracture mechanics
- Review
- Rolling shear modulus and strength of beech wood laminations
- Original Articles
- Influence of sugar and starch content of palm wood on fungal development and prevention of fungal colonization by acid treatment
- Dimensional stability, fungal resistance and mechanical properties of radiata pine after combined thermo-mechanical compression and oil heat-treatment
Artikel in diesem Heft
- Frontmatter
- Original Articles
- UV-protection of wood surfaces by controlled morphology fine-tuning of ZnO nanostructures
- Solid-state 29Si NMR and FTIR analyses of lignin-silica coprecipitates
- Monitoring of free phenol content in lignosulfonates by ClO2 titration and UV difference spectroscopy
- Self-assembly of kraft lignin into nanospheres in dioxane-water mixtures
- Determination of the stability constant of the calcium binding ligand in black liquor (BL) by potentiometric titration
- Thermo-hydro treated (THT) birch veneers for producing plywood with improved properties
- Reactions between peracetic acid and lipophilic extractives – methodologies and implications in post bleaching of kraft pulps
- Geopolymers as potential new binder class for the wood based composite industry
- Assessing the role of adhesives in durability of laminated veneer lumber (LVL) by fracture mechanics
- Review
- Rolling shear modulus and strength of beech wood laminations
- Original Articles
- Influence of sugar and starch content of palm wood on fungal development and prevention of fungal colonization by acid treatment
- Dimensional stability, fungal resistance and mechanical properties of radiata pine after combined thermo-mechanical compression and oil heat-treatment