IMPROVEMENT OF DIMENSIONAL STABILITY AND MECHANICAL PROPERTIES OF GYPSUM PARTICLEBOARD BY ADDING WHITE CEMENT

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KHOJASTEH KHOSRO S.; RANGAVAR H.; PAYAN M.H.; SEYYEDI S.M.

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Journal: Iranian Journal of Wood and Paper Science Research Year:2015 | Volume:30 | Issue:1 Page(s): 132-143

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Title

IMPROVEMENT OF DIMENSIONAL STABILITY AND MECHANICAL PROPERTIES OF GYPSUM PARTICLEBOARD BY ADDING WHITE CEMENT

Author(s)

KHOJASTEH KHOSRO S. | RANGAVAR H. | PAYAN M.H. | SEYYEDI S.M. | Issue Writer Certificate

Keywords

GYPSUM PARTICLEBOARDQ2

MICRONIZE GYPSUMQ2

WHITE CEMENTQ2

SETTING TIME OF GYPSUMQ2

DIMENSIONAL STABILITYQ2

MECHANICAL PROPERTIESQ2

Abstract

In the present research improvement of DIMENSIONAL STABILITY and MECHANICAL PROPERTIES of GYPSUM PARTICLEBOARD by using WHITE CEMENT was investigated. In manufacturing GYPSUM PARTICLEBOARD, MICRONIZE GYPSUM was used in three levels of 2.5: 1, 2.75: 1 and 3: 1 to dried mass of wooden materials. WHITE CEMENT was added in 2 levels of 5 and 10% based on oven dried mass of gypsum to reinforce GYPSUM PARTICLEBOARD properties. Water absorption, thickness swelling after 2 and 24 hours immersion in water, bending strength, modulus of elasticity and internal bond strength were measured. Vicat needle method was used to investigate the effect of adding cement on SETTING TIME OF GYPSUM. The results showed that adding 5% cement based on oven dried mass of gypsum, increased setting time and also MECHANICAL PROPERTIES. Adding cement over than 5% (10%), significantly improved DIMENSIONAL STABILITY but reduced SETTING TIME OF GYPSUM and MECHANICAL PROPERTIES of the boards. On the other hand, results indicated that using MICRONIZE GYPSUM to 2.75 times to dried mass of wooden materials, increased bending strength and modulus of elasticity. Increasing gypsum in to 3 times, reduced bending strength and modulus of elasticity, but improved internal bond strength and DIMENSIONAL STABILITY.

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APA: Copy

KHOJASTEH KHOSRO, S., RANGAVAR, H., PAYAN, M.H., & SEYYEDI, S.M.. (2015). IMPROVEMENT OF DIMENSIONAL STABILITY AND MECHANICAL PROPERTIES OF GYPSUM PARTICLEBOARD BY ADDING WHITE CEMENT. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 30(1), 132-143. SID. https://sid.ir/paper/109729/en

Vancouver: Copy

KHOJASTEH KHOSRO S., RANGAVAR H., PAYAN M.H., SEYYEDI S.M.. IMPROVEMENT OF DIMENSIONAL STABILITY AND MECHANICAL PROPERTIES OF GYPSUM PARTICLEBOARD BY ADDING WHITE CEMENT. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2015;30(1):132-143. Available from: https://sid.ir/paper/109729/en

IEEE: Copy

S. KHOJASTEH KHOSRO, H. RANGAVAR, M.H. PAYAN, and S.M. SEYYEDI, “IMPROVEMENT OF DIMENSIONAL STABILITY AND MECHANICAL PROPERTIES OF GYPSUM PARTICLEBOARD BY ADDING WHITE CEMENT,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 30, no. 1, pp. 132–143, 2015, [Online]. Available: https://sid.ir/paper/109729/en

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