Padjadjaran Journal of Dentistry
Vol 20, No 3 (2008): November

Differentiation of physical and mechanical properties analysis of self made gypsum product with raw material from Tasikmalaya with standar ISO and factory made

AP, Wahyuning (Unknown)
Hasratiningsih, Zulia (Unknown)
Manurung, Rosida (Unknown)



Article Info

Publish Date
30 Nov 2008

Abstract

In early research, gypsum’s product from Padalarang and Tasikmalaya had been compared and it is found that Tasikmalaya gypsum was better. In these research, it’s used gypsum product from Tasikmalaya with wet calcination method using autoclave. This research consisted of four samples divided into three control groups and one treatment group. Research’s sample consisted of 45 units and 15 units data from the last research. To compared physical and mechanical properties, every samples was tested in three treatments. Research results showed that the average setting time, setting expansion and compressive strength of wet calcination gypsum product are respectively 487.6 seconds, 0.492%, and 12.708 Mpa. The results were statistically analyzed with MANOVA and Tukey test. The analysis showed differences in physical and mechanical properties between self made gypsum product from Tasikmalaya with Padalarang’s and two marketed gypsum products. Setting time self made gypsum product meets the ISO for type III, while compressive strength and setting expansion were not. But gypsum’s production from Tasikmalaya done by wet calcinations had better physical and mechanical properties, so it can be used in dentistry.

Copyrights © 2008






Journal Info

Abbrev

PJD

Publisher

Subject

Biochemistry, Genetics & Molecular Biology Dentistry Health Professions Immunology & microbiology Medicine & Pharmacology Public Health

Description

Padjadjaran Journal of Dentistry or known as PJD, is an English-language scientific periodicals published by the Faculty of Dentistry Universitas Padjadjaran thrice a year on every March, July and November. The submission process of manuscript is open throughout the year. All submitted manuscripts ...