ERICO CADWELD for Rebar Splicing System - Manual (Page 13)

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Void Limits
Splices shall be acceptable if the void per end does not exceed the limit listed below. Void areas
are approximated as shown in the illustrations below. More exact void measurements should be
made only when necessary.
SUMMARY
The inspection of a CADWELD ® rebar splice is visual. Occasional checking of the workmanship of the splicer to make sure
that he or she is following the correct splicing procedure will serve to reinforce the judgement of the inspector on the job.
ERICO
® standard instructions should be consulted for additional information.
NOTES:
1. Allowable accumulative void
is shown for each end. For
example, a splice of #18 bar
in RBT-1891 is acceptable
with a spot void 1
1 /
2
-in.
(38.1 mm) wide, 1 1 /
2
-in.
(38.1 mm) deep, and 5/16-in.
(7.9 mm) low fill around
remaining perimeter of bar.
(Cumulative void are = 1.50
(1
1 /
2
-5/16) + 7.09 (5/16 –
3/16) = 2.66 square inches
[17.2 cm
2 ].) The width (W)
of any void is measured at
the bar perimeter. There is a
3/16 in. (5 mm) allowance
for packing.
2. Use this column for all
standard splices; vertical,
horizontal, horizontal side
fill, angled splices, and
B-series structure splices
with spot voids.
3. Use this column for vertical
splices only with low filler
metal around entire circum-
ference (for spot voids, use
Column A). Applicable also
for vertical B-Series Structure
Splices with low filler metal
around entire circumference.
NOTE:
Void dimensions can be
established by use of a
probe of tie wire.
Bar Size Sleeve Number Allowable Void
Column A (1) (2) Column B (3)
Spot Voids Full Circumference Low
(in 2 ) (cm 2 ) (in) (cm)
#4 RBT5101A (HA) or RBB592JA 0.47 3.03 0.500 1.27
#5 RBT5101A (HA) or RBB592JA 0.53 3.41 0.500 1.27
#6 RBT6101A (HA) or RBB692JA 1.05 6.77 0.625 1.58
#7 RBT7101A (HA) or RBB792JA 1.03 6.64 0.562 1.42
#8 RBT8101A (HA) or RBB8101JA 1.02 6.58 0.500 1.27
#9 RBT9101A (HA) or RBB992JA 1.02 6.58 0.500 1.27
#10 RBT1091A (HA) or RBB1092JA 1.03 6.64 0.437 1.11
#11 RBT11101A (HA) or RBB11101JA 1.53 9.87 0.562 1.42
#14 RBT14101A (HA) or RBB14101JA 2.15 13.8 0.625 1.58
#18 RBT1891A (HA) or RBB1892JA 3.00 19.3 0.625 1.58
#6 to #7 RBT7101A (HA) 1.05 / 1.03 6.77 / 6.64 0.625 / 0.562 1.58 / 1.42
#7 to #8 RBT8101A (HA) 1.03 / 1.02 6.64 / 6.58 0.562 / 0.500 1.42 / 1.27
#8 to #9 RBT9101A (HA) 1.02 / 1.02 6.58 / 6.58 0.500 / 0.500 1.27 / 1.27
#9 to #10 RBT10901A (HA) 1.02 / 1.03 6.58 / 6.64 0.500 / 0.437 1.27 / 1.11
#10 to #11 RBT11101A (HA) 1.58 / 1.53 10.1 / 9.87 0.625 / 0.562 1.58 / 1.42
#11 to #14 RBT1114101A (HA) 1.53 / 1.52 9.87 / 9.80 0.625 / 0.625 1.58 / 1.58
#11 to #18 RBT1118101A (HA) 1.53 / 1.99 9.87 / 12.8 0.562 / 0.500 1.42 / 1.27
#14 to #18 RBT1418101A (HA) 2.15 / 1.99 13.8 / 12.8 0.625 / 0.500 1.58 / 1.27
= T-Series and B-Series = T-Series Transition
Void Limits