Product Overview
18
TECHNICAL GUIDE – ADHESIVES ©2021 DEWALT – REV. F
Adhesives
A
NCHORS & FASTENERS
STRENGTH DESIGN (SD)
Tension and Shear Design Strength for Reinforcing Bar Installed in Cracked Concrete (Bond or Concrete Strength)
Drilled with a Hammer-Drill and Carbide Bit in a Dry Hole Condition
122°F (50°C) Maximum Long-Term Service Temperature;
176°F (80°C) Maximum Short-Term Service Temperature
1,2,3,4,5,6,7,8,9
Nominal
Rod/Rebar
Size
(#)
Embed.
Depth
h
ef
(in.)
Minimum Concrete Compressive Strength
f'c = 2,500 (psi) f'c = 3,000 (psi) f'c = 4,000 (psi) f'c = 6,000 (psi) f'c = 8,000 (psi)
φ
N
cb
or
φ
N
a
Tension
(lbs.)
φ
V
cb
or
φ
V
cp
Shear
(lbs.)
φ
N
cb
or
φ
N
a
Tension
(lbs.)
φ
V
cb
or
φ
V
cp
Shear
(lbs.)
φ
N
cb
or
φ
N
a
Tension
(lbs.)
φ
V
cb
or
φ
V
cp
Shear
(lbs.)
φ
N
cb
or
φ
N
a
Tension
(lbs.)
φ
V
cb
or
φ
V
cp
Shear
(lbs.)
φ
N
cb
or
φ
N
a
Tension
(lbs.)
φ
V
cb
or
φ
V
cp
Shear
(lbs.)
#4
2-3/4 930 1,985 950 2,050 990 2,130 1,040 2,245 1,080 2,330
4 1,350 2,910 1,385 2,980 1,435 3,095 1,515 3,265 1,575 3,385
6 2,030 4,365 2,075 4,470 2,155 4,645 2,270 4,895 2,360 5,080
#5
3-1/8 1,375 2,640 1,410 2,915 1,465 3,150 1,540 3,320 1,600 3,445
5 2,200 4,740 2,255 4,855 2,340 5,040 2,465 5,315 2,560 5,515
7-1/2 3,300 7,115 3,380 7,285 3,510 7,560 3,700 7,970 3,840 8,275
#6
3-1/2 1,795 3,380 1,835 3,735 1,900 4,095 1,995 4,300 2,065 4,450
6 3,170 6,830 3,245 6,990 3,370 7,260 3,550 7,650 3,690 7,945
9 4,755 10,240 4,870 10,490 5,055 10,890 5,330 11,475 5,530 11,915
#7
3-1/2 1,830 3,525 1,875 3,910 1,945 4,185 2,040 4,395 2,110 4,550
7 4,315 9,295 4,420 9,515 4,585 9,880 4,835 10,415 5,020 10,810
10-1/2 6,475 13,940 6,630 14,275 6,880 14,820 7,255 15,620 7,530 16,215
#8
4 2,420 4,320 2,475 4,775 2,560 5,515 2,690 5,795 2,785 6,000
8 5,635 12,140 5,770 12,430 5,990 12,905 6,315 13,600 6,555 14,120
12 8,455 18,210 8,655 18,645 8,985 19,355 9,475 20,405 9,835 21,180
#9
5 3,090 4,890 3,155 5,410 3,270 6,340 3,435 7,395 3,555 7,655
10 7,215 13,800 7,390 15,260 7,670 16,520 8,085 17,415 8,395 18,080
15 10,825 23,315 11,085 23,870 11,505 24,780 12,130 26,125 12,590 27,120
#10
5 3,855 5,490 3,940 6,070 4,080 7,115 4,280 8,900 4,435 9,550
10 8,910 15,475 9,120 17,115 9,470 20,060 9,980 21,500 10,365 22,320
15 13,365 28,190 13,685 29,470 14,205 30,595 14,975 32,250 15,545 33,480
■ - Concrete Breakout Strength ■ - Bond Strength/Pryout Strength
1. Tabular values are provided for illustration and are applicable for single anchors installed in cracked normal-weight concrete with minimum slab thickness,
h
a
= h
min
, and with the following conditions:
- c
a1
is greater than or equal to the critical edge distance, c
ac
- c
a2
is greater than or equal to 1.5 times c
a1
.
2. Calculations were performed according to ACI 318-14 Ch.17 and ICC-ES AC308. The load level corresponding to the failure mode listed [Concrete breakout strength, bond strength/pryout
strength] must be checked against the tabulated steel strength of the corresponding threaded rod or rebar size and type, the lowest load level controls.
3. Strength reduction factors (
φ
) for concrete breakout strength are based on ACI 318-14 Section 5.3 for load combinations. Condition B was assumed.
4. Strength reduction factors (
φ
) for bond strength are determined from reliability testing and qualification in accordance with ICC-ES AC308 and are tabulated in this product information and
in ESR-2582.
5. Tabular values are permitted for static loads only, seismic loading is not considered with these tables. Periodic special inspection must be performed where required by code, see ESR-2582 for
applicable information.
6. For anchors subjected to tension resulting from sustained loading a supplemental check must be performed according to ACI 318-14 17.3.1.2.
7. For designs that include combined tension and shear, the interaction of tension and shear loads must be calculated in accordance with ACI 318-14 Ch.17.
8. Interpolation is not permitted to be used with the tabular values. For intermediate base material compressive strengths, please see ACI 318-14 Ch.17, ICC-ES AC308 and information included
in this product supplement. For other design conditions including seismic considerations please see ACI 318-14 Ch.17 and ICC-ES AC308 and ESR-2582.
9. Long term concrete temperatures are roughly constant over significant periods of time. Short-term elevated temperatures are those that occur over brief intervals, e.g. as a result of
diurnal cycling.