Počet záznamov: 1
Non-destructive penetration method for determining the quality of structural Spruce wood (Picea Abies KARST. L.) in situ
SYS 0105391 LBL 00000naa^^22^^^^^^^^450 005 20200515094220.5 017 70
$a 10.17423/afx.2020.62.1.10 $2 DOI 100 $a 20200515a m y0sloy0103 ba 101 0-
$a eng 102 $a SK 200 1-
$a Non-destructive penetration method for determining the quality of structural Spruce wood (Picea Abies KARST. L.) in situ $f Alena Rohanová 215 $c Obr., tab. 320 $a Lit. 330 $a Structural timber is specific, because its quality isset by visual or mechanical grading. Visual grading method by PILODYN 6J deviceis examined in the paper. Experiments were carried out using 5 spruce boards (Picea abies Karst. L) from Slovakia. Dimensions of boards were 40 × 200 × 2500 mm. Density of wood was set by gravimetric method according to EN 408 (2013). Depth of penetrations was measured using the device PILODYN 6J (hp). Wood structure was described by the rate of growth (RoG) according to DIN 1052 (2004). Three most used visual grading strength classes C30, C24 and C18 according to EN 338 (2016) were specified. Dependencies between measured characteristics were expressed by multistage parallel scale model (penetration depth ~ number of growth rings ~ rate of growth ~ strength class and wood density). It is possible to predict visual strength class of board and indicative density of wood (EN 338) by the proposed model in situ. Methods of model are easy to use, reliable and economically undemanding. 463 -1
$1 001 sldk_un_cat*0105278 $1 011 $a 1336-3824 $1 200 1 $a Acta Facultatis Xylologiae Zvolen $e vedecký časopis Drevárskej fakulty $v Vol. 62, no. 1 (2020), s. 113-123 $1 210 $a Zvolen $c Technická univerzita vo Zvolene $d 2020 610 1-
$9 sldk_un_auth*h005962 $a smrekové drevo $X spruce wood 610 1-
$9 sldk_un_auth*h012853 $a konštrukčné drevo $X structural timber 610 1-
$9 sldk_un_auth*h015177 $a dosky $X panels 610 1-
$9 sldk_un_auth*h004743 $a hustota dreva $X wood density 610 1-
$9 sldk_un_auth*h011305 $a penetrácia $X penetration 610 1-
$9 sldk_un_auth*0021159 $a veľkosť prírastku $X rate of growth 610 1-
$9 sldk_un_auth*h018298 $a pevnostné triedy $X strength classes 675 $a 674.032.475.5 $v 2. stred. $z slo 675 $a 630*812.39 $v 1. stred. $z slo 700 -1
$3 sldk_un_auth*p0000279 $a Rohanová $b Alena $f 1953- $p TUZDFDS $4 070 $T Katedra drevených stavieb 801 -0
$a SK $b ZV001 $c 20200515 $g AACR2 856 4-
$u https://df.tuzvo.sk/sites/default/files/10-01-20.pdf
Počet záznamov: 1