Product Overview
16
TECHNICAL GUIDE – ADHESIVES ©2021 DEWALT – REV. F
Adhesives
A
NCHORS & FASTENERS
STRENGTH DESIGN (SD)
Tension and Shear Design Strength for Threaded Rod and Reinforcing Bar Installed in
Uncracked 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
(in. or #)
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.)
3/8 or #3
2-3/8 1,495 1,610 1,535 1,650 1,590 1,715 1,675 1,805 1,740 1,875
3 1,890 2,955 1,935 3,270 2,010 3,830 2,120 4,565 2,200 4,735
4-1/2 2,835 5,395 2,905 5,965 3,015 6,495 3,180 6,845 3,300 7,105
1/2 or #4
2-3/4 2,310 2,780 2,365 3,075 2,455 3,605 2,590 4,505 2,690 5,280
4 3,360 5,230 3,440 5,785 3,575 6,780 3,765 8,110 3,910 8,420
6 5,040 9,530 5,165 10,540 5,360 11,545 5,650 12,170 5,865 12,630
5/8 or #5
3-1/8 3,280 3,695 3,360 4,085 3,490 4,785 3,680 5,990 3,820 7,020
5 5,250 8,155 5,380 9,015 5,585 10,565 5,885 12,675 6,110 13,160
7-1/2 7,880 14,850 8,065 16,420 8,375 18,035 8,825 19,015 9,165 19,735
3/4 or #6
3-1/2 4,285 4,730 4,380 5,230 4,535 6,130 4,760 7,670 4,925 8,990
6 7,565 11,515 7,745 12,730 8,040 14,925 8,475 18,250 8,795 18,950
9 11,345 20,970 11,615 23,190 12,060 25,975 12,710 27,380 13,195 28,420
7/8 or #7
3-1/2 4,370 4,930 4,475 5,470 4,635 6,410 4,865 8,020 5,040 9,400
7 10,295 14,500 10,540 16,035 10,940 18,795 11,535 23,510 11,975 25,790
10-1/2 15,440 26,410 15,810 29,210 16,415 34,235 17,300 37,265 17,960 38,685
1 or #8
4 5,210 6,045 5,325 6,685 5,515 7,835 5,795 9,800 6,000 11,490
8 12,140 17,000 12,430 18,800 12,905 22,040 13,600 27,565 14,120 30,410
12 18,205 30,965 18,645 34,245 19,355 40,140 20,400 43,940 21,180 45,615
#9
5 5,795 6,845 5,925 7,570 6,135 8,875 6,445 11,100 6,670 13,010
10 13,545 19,320 13,865 21,365 14,395 25,045 15,175 31,325 15,755 33,930
15 20,315 35,195 20,800 38,920 21,595 45,620 22,760 49,025 23,630 50,895
1-1/4
5 6,575 7,695 6,720 8,510 6,955 9,975 7,305 12,480 7,565 14,625
10 15,010 21,630 15,370 23,920 15,955 28,035 16,820 35,065 17,460 37,605
15 22,515 39,390 23,055 43,560 23,930 51,060 25,225 54,335 26,190 56,405
#10
5 6,490 7,685 6,635 8,495 6,870 9,960 7,215 12,455 7,470 14,600
10 15,010 21,665 15,370 23,960 15,955 28,085 16,820 35,130 17,460 37,605
15 22,515 39,465 23,055 43,640 23,930 51,155 25,225 54,335 26,190 56,405
■ - Concrete Breakout Strength ■ - Bond Strength/Pryout Strength
1. Tabular values are provided for illustration and are applicable for single anchors installed in uncracked 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.