a[mm]/l - Memorial University of Newfoundland DAI

Table 3 3 Pmpenles of steel retnforcement
number fmm) fmm'l yield rtrerr ult8mae Elasl!c~ly
(MPa) (MPa) ICPJ)
No.lOM 11.3 LOO 0.03235 150 660 191
No 15 M 16.0 200 0.00?25 435 670 193
3.3. Test Specimens
Thlr study has been eonduered on over 16 rpeamenr. Two spcclmcnr were used at the
begtnnlng ns a reference to ertahl!rh the tertnng pmcsdure. ro check the lnrtlumenrrrton
accuracy. lo wl the rate of loading and the rate of rcvnnlng data. The dimcnrnan for all
tell speclmenr were 950 mm rquarr and 100 mm th~ck and wvenl vmables were
conrlderrd ~n the ~nvcrt~ga~on The variables xncluded the effeel of concrete arcnph.
ruppan patern. and mnforcemea mlo Detallr of the ~ndw~dual rpeclmens and #a
vanabler arc given ~n Table 3 4
As even #n the table. each specmen tr ldentlfied ~n column two by three Icrlers
and one numeral. The flrrt and raond letters lndlcate the nmnglh of concne: HS
!ndicares hlgh-strenph and NS !nd#cater normal-srmglh. The thtrd letter ~ndlcater the
type of rupvpon pattcm, where F cndtcatcr fixed and S indicates simply rupponed. The
last numeral tndtcates the vmable of the tenston retnfonement ntto, where number I
lndlcates mnforcemcnt mllo of about 1%. 2 mdteates 1.5%. 3 tndlcaer 2% and 4
indlcrter 2.5%. A rypjcal au of the rested specmen s gwcn in Figure 3.1. and Figure
3.2 presents a ryplcd reinfommens pattern on lenstan and compresston faces.