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Evaluation of the properties of wood sawdust-cement perforated blocks | ||
| تحقیقات علوم چوب و کاغذ ایران | ||
| Article 9, Volume 27, Issue 2 - Serial Number 39, June 2012, Pages 294-305 PDF (192.05 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/ijwpr.2012.117068 | ||
| Authors | ||
| Ali akbar Enayati* 1; Hossein Nazerani hoshmand2; Kazem Dost hosseini3; Ahmad Jahan latibari4; Sohrab Rahimi5 | ||
| 1Professor, Dept. of Wood and Paper Sciences and Technology, Faculty of Natural Resources, Tehran University | ||
| 2M.Sc, Wood and Paper Science and Technology, Faculty of Natural Resources, Tehran University. Iran | ||
| 3Professor, Wood and Paper Science and Technology, Natural Resources Faculty, Tehran University , Iran | ||
| 4Associated Professor, Wood and Paper Science and Technology, Karaj Branch, Islamic Azad University, Karaj, Iran | ||
| 5PhD Student, Science and Research Branch, Islamic Azad University (IAU), Tehran, Iran | ||
| Abstract | ||
| In order to study the optimum manufacturing conditions of wood sawdust-cement perforated blocks, sawdust of headrige saw was mixed with portland cement type II, and then perforated blocks were molded from this mixture. The mixture ratios of sawdust to cement were selected as 28:72, 35:65 and 42:58, respectively. CaCl2 (Calcium chloride) or MgCl2 (Magnesium chloride) at two levels (3%,5% based on the weight of the cement) were used as additives. The results of physical (thickness swelling after 2 and 24 hours soaking in water) and mechanical (compressive strength) properties of the blocks revealed that varying the sawdust to cement ratio imparted differences in physical and mechanical properties of the blocks. The blocks with sawdust to cement ratio of 42:58 showed the highest compressive strength and blocks with sawdust to cement ratio of 28:72 showed the lowest thickness swelling. It was observed that the type of additive did not impose any significant effect on physical and mechanical properties of blocks. Whereas the effect of MgCl2 level on the properties was significant | ||
| Keywords | ||
| Sawdust; Portland cement; perforated blocks; compressive strength; Thickness swelling | ||
| References | ||
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- ارسطو، سعید ،قلعهبیگی، هایده، 1374، نگرش کلی بر مصارف احتمالی خاکاره و بررسی تکنولوژیهای قابل کاربرد. انتشارات شرکت تحقیقات و مهندسی صنایع سلولزی، تهران – استاندارد ملی ایران شماره 7782 ، 1385 ، بلوک‌های سیمانی سبک غیر باربر – ویژگی‌ها، موسسه استاندار و تحقیقات صنعتی ایران.چاپ اول - جمالی، ی، بررسی تاثیر دی اکسید کربن بر روی خواص کاربردی تختههای رشتهچوب-سیمان. پایان نامه کارشناسی ارشد، دانشکده منابع طبیعی،دانشگاه تهران. - محمد کاظمی،ف،1389،بررسی اثر نانوسیلیس بر خواص کاربردی صفحات چوب-سیمان ساخته شده از کارتن کهنه و پوسته برنج. پایان نامه کارشناسی ارشد، دانشکده منابع طبیعی، دانشگاه تهران. - مهرجردی،صدرالدین ، مهر، نورالدین1369، شناخت، طرح و کاربرد بتن سبک در ساختمان ، چاپ اول، وزارت مسکن و شهر سازی، مرکز تحقیقات مسکن. - یزدی، م،1375. بررسی خواص کاربردی صفحات چوب-سیمان و تاثیر مواد افزودنی بر آنها. پایاننامه کارشناسی ارشد، دانشکده منابع طبیعی، دانشگاه تهران -Agrrawal, L.K., Agrawal, S.P., Thapliyal.P.C. Karada, S.R., 2008, Cement-bonded composite boards with arhar stalks, Cement& concrete Composites 30:44-51.
-Deutsche Nor men, DIN 52364, 1995, Testing of wood chipboards, determination of thickness swelling.Deutschen Normenausschusses ,Berlin,Germany
-European Standard, EN 634-1, 1995, Cement bonded Particleboards-Specification- Part 1: General requirements.Department of European Committee for Standardization.Brussels.Belgium.
-Fernandez, E. C.; Lamason, C. R. G.; Delgado, T. S , 2000. Cement-bonded boards from waste water treatment sludge of a recycled paper mill natural resources, university of the philipnnes los Baflos.
-Fernandez, E. C.; Taja-on, V. P. .2002. the use and processing of rice straw in the manufacture of cement bonded fiberboard. Department of forest products and paper science, college of forestry and natural resources, university of the Philippines los Baflos.
- Hermawan, D., Subiyanto, B., Kawal, S., 2001, Manufacture and properties of oilpalm frond cement-bonded board,, J. of wood Science, 47:208-213.
- Moslemi, A. A., Francisco Garcia,J., Hofstrand, A. D.,1983, Effect of Various Treatments and Additives on Wood-Portland Cement-Water Systems , Wood and Fiber Science, Vol. 15, No. 2
- TAPPI Standard, T-207cm 99, 2002, Water solubility of Wood and Pulp, TAPPI press, Atlanta,ca.USA.
- Wan Jo. By Byung, Hyun Kim. Chang, Hoon Lim. Jae, 2007, investigating on the development of powder cocrete with nano-sio2 particles, KSCE, Journal of civil engineering. Vol 11, No.1, 37-42..
- Zhou Yaguang. Kamdem D.Paseal 2001. Effect of cement/wood ratio On the properties of cement- bondedparticleboard ٍusing CCA – treated wood removed from service, Forest products Journal, Vol.l 52, No.3. | ||
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