7
S t e p 1 c
(P o s iTe c to r A p p o n ly ). If d e s ire d , in s e rt a p ic tu re o r
b lu e p rin t o f th e a re a to b e m e a s u re d . U s e th e to ta k e a
p h o to o f th e b lu e p rin t, o r u s e th e
to in s e rt a n im a g e fro m
th e p h o to g a lle ry. T h is b a c k g ro u n d im a g e w ill m a k e it e a s y to
lo c a te e a c h p ro b e w ith in th e a re a .
S t e p 1 d
(P o s iTe c to r A p p o n ly ). P re s s th e
( + )
ic o n a t th e b o tto m
r ig h t o f th e P r o je c t s c r e e n a n d th e n to u c h th e s c r e e n in th e
d e s ire d lo c a tio n to p la c e th e h o le . T h e n e w h o le lo c a tio n w ill b e
o v e rla y e d o n th e im a g e a n d w ill b e id e n tifie d a s a c irc le c o n ta in in g
--- 0 . R e p e a t th is fo r e a c h m e a s u re m e n t lo c a tio n w ith in th e A re a .
C re a te a d d itio n a l A re a s a s re q u ire d .
S t e p 2 – D r i l l t h e H o l e
A S T M F 2 1 7 0 s e ts o u t s tr ic t r e q u ir e m e n ts fo r h o le d e p th a n d
d ia m e te r. U s in g a r o ta r y h a m m e r d r ill w ith a c a r b id e - tip p e d
m a s o n ry d rill b it (¾ ” d ia m e te r), d rill th e h o le to th e re q u ire d d e p th .
D o n o t u s e w a te r fo r c o o lin g o r lu b ric a tio n .
H o le d e p th re q u ire m e n ts a c c o rd in g to A S T M F 2 1 7 0 :
n
C o n c re te s la b d ry in g fro m o n e s id e o n ly :
4 0 % d e p th fro m to p o f s la b
n
C o n c re te s la b d ry in g fro m tw o s id e s :
2 0 % d e p th fro m th e to p o f th e s la b
