000001944 001__ 1944
000001944 005__ 20141118153449.0
000001944 04107 $$acze
000001944 046__ $$k2011-05-09
000001944 100__ $$aPlachý, T.
000001944 24500 $$aDYNAMIC MODULUS OF ELASTICITY OF DENTAL GYPSUM 

000001944 24630 $$n17.$$pEngineering Mechanics 2011
000001944 260__ $$bInstitute of Thermomechanics AS CR, v.v.i., Brno
000001944 506__ $$arestricted
000001944 520__ $$2eng$$aThe paper describes the influence of water/gypsum ratio to the dynamic modulus of elasticity of dental gypsum. Commercially available dental gypsum Interdent® (with compressive strength 250 MPa after 24 hours) was used in our study. It was assumed that water to gypsum (w/g) ratio would have influence on its mechanical properties. Therefore, five different types of specimens with w/g=0.18, 0.19, 0.20, 021 and 0.22, further denoted as G0, G1, G2, G3 and G4, were prepared. These samples were tested using nondestructive method. The dynamic modulus of elasticity was determined based on measured basic resonant frequency of longitudinal vibration of the specimens. At the end, the comparison of obtained values in dependence on water/gypsum ratio was done.

000001944 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000001944 653__ $$aWater/gypsum ratio, dental gypsum, dynamic modulus of elasticity, resonant method, natural frequency.

000001944 7112_ $$aEngineering Mechanics 2011$$cSvratka (CZ)$$d2011-05-09 / 2011-05-12$$gEM2011
000001944 720__ $$aPlachý, T.$$iPolák, M.$$iTesárek, P.$$iNěmcová, H.
000001944 8560_ $$ffischerc@itam.cas.cz
000001944 8564_ $$s1143250$$uhttp://invenio.itam.cas.cz/record/1944/files/p106.pdf$$y
             Original version of the author's contribution as presented on book, page 463.
            
000001944 962__ $$r1835
000001944 980__ $$aPAPER