Manufacture of cement-gypsum board using core-kenaf Hibiscus cannabinus L. with curing autoclave technology

Rohny Setiawan Maail, . and Dede Hermawan, . and Yusuf Sudo Hadi, . (2006) Manufacture of cement-gypsum board using core-kenaf Hibiscus cannabinus L. with curing autoclave technology. [Proceedings Paper]

Cement and gypsum bonded lignocellulosic fiber reinforced materials will ultimately become the ideal ecological building products. The ability to use industrial co-products and wastes as in their matrix material makes it an environmentally sustainable product. The objective of this study was to evaluate the effect of cement-gypsum proportions and curing times on the properties of the cement gypsum board with kenaf core. Three levels of proportion cement and gypsum were used i.e. 40:60 50:50 and 60:40 where cement was used as face-back layers and gypsum was used in the core layers. Five levels of curing time were used i.e. control 2 4 8 and 16 hours. Calcium chloride CaCI2 3 and 2 borax was used as an accelerator and retarder. The physical and mechanical properties of cement-gypsum board were tested according to JIS A 5417-1992. Results show that the proportion cement 60 and gypsum 40 with curing time of 8 hours yield the properties of cement-gypsium boards fulfilling all examinations parameters of JIS A 5417 standard. The curing process was found to be better than conventional curing time of 2 weeks.

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Abstract

Cement and gypsum bonded lignocellulosic fiber reinforced materials will ultimately become the ideal ecological building products. The ability to use industrial co-products and wastes as in their matrix material makes it an environmentally sustainable product. The objective of this study was to evaluate the effect of cement-gypsum proportions and curing times on the properties of the cement gypsum board with kenaf core. Three levels of proportion cement and gypsum were used i.e. 40:60 50:50 and 60:40 where cement was used as face-back layers and gypsum was used in the core layers. Five levels of curing time were used i.e. control 2 4 8 and 16 hours. Calcium chloride CaCI2 3 and 2 borax was used as an accelerator and retarder. The physical and mechanical properties of cement-gypsum board were tested according to JIS A 5417-1992. Results show that the proportion cement 60 and gypsum 40 with curing time of 8 hours yield the properties of cement-gypsium boards fulfilling all examinations parameters of JIS A 5417 standard. The curing process was found to be better than conventional curing time of 2 weeks.

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Item Type:	Proceedings Paper
Additional Information:	Abstract only
AGROVOC Term:	KENAF
AGROVOC Term:	CEMENT
AGROVOC Term:	GYPSUM
AGROVOC Term:	CORK
AGROVOC Term:	SAWNWOOD
AGROVOC Term:	AUTOCLAVES
AGROVOC Term:	INDONESIA
Geographical Term:	MALAYSIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:28
URI:	http://webagris.upm.edu.my/id/eprint/16924

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