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

wlrh IW mm height. The bottom of Ihc form was made of rleel plates. The form war
constructed such that 11 can be d!rilrrembled and re-used Before each cnstlng. all of the
steel plater and plywood surface were cleaned and coated w~lh ihght mould o ~l Dunng
casang. grear care was also gpen to ensure that the four rpeclmenr pmv~ded were
unlfom
3.42. Steel Reinforcement
The lenrlon rleel nnforccrncnl at bottom face and the eomprcrslon rleel remforccmnt dl
lop face were manged bared on the derlgn rpxlng. The tenrlon nee1 relnforcemenc were
rupponcd on the eomprersnon steel retnforcemenr by LO-mm dv~meler rpreers. The
rpzcerr airo pmv~ded the concrete clear cover. The spacers were welded lo the ncel
re~nforcernenr at selected loeatlon to el~rnlnxe the effect of weldmg. The relnfarcemen!
cap war placed I" the form. both the lenston and cornpreranan rleel reinforcement were
rled togelher wlrh steel wtres. As shown rn Rgure 3.3. thc steel retnfarcemnt were
placed I" the form before eusung
3.43. Mixing, Casting, and Curing
The capaclty of concrete mlrer was 0.1 m'. The quvntlty war required lo c~n one
spcelmen using one batch. Befm concrete was placed. the formwork and Ihe relnforclng
reban were thoroughly cleaned.
Figure 3.4 shows the pounng of fresh concrete from the batch lo the fomwah
Dch concrete batch was poured tnro the formwork and lhcn was vibrated urmg an
electrical md nbratm. The vibrator was applied to the whole plate to consolidate the