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Epoxy Concrete Anchor Systems

Epoxy Anchor
Information
Epoxy Anchor
Design
Epoxy Anchor Applications Parts &
Accessories
Epoxy Anchor
Installation
Installation
Equipment
Case
Histories
Corrosion
Protection
• Epoxy is ideal for passive dowels or anchors without sustained loading conditions; however, when high
capacity anchors are to be prestressed, the designer should consider Williams Spin-Lock mechanical anchors.

• Use Williams epoxy anchors for concrete anchors loaded in shear.

Applications
  • Concrete Foundation Repair
  • Seismic Retro-Fit
  • Machinery Anchoring
  • Anchors for Rail Systems
  • Underwater Doweling
  • Concrete Dock Repair and Construction
  • Anchors subject to Large Shear Loads
  • Bridge Pier Reinforcement
  • Pier Cap Repairs
  • Dam Refacement
  • General Plant Maintenance
  • Column Anchors
  • Light Poles
Ultraond Epoxy Concrete Anchor System

Ultrabond Technical Information

The International Code Council (ICC) developed the AC308 adhesive test criteria because they recognized the need for engineers and contractors to be able to correctly choose the adhesive that best fit their application. AC308 in conjunction with ACI 355.4 standardized testing criteria qualifies adhesives for use in cracked and uncracked concrete substrate.

Click here for Design Considerations of Epoxy Concrete Anchors.

Ultrabond 365 Epoxy Concrete Anchor System

The Ultrabond 365CC product is code compliant when anchors are designed in accordance with ESR-3770. (Available upon request) The 365CC adhesive also conforms to ASTM C881, Type I, II, IV and V Grade 3 Class A, B and C.

ICC ER Evaluation Report #3770. ULTRABOND is a UL – NSF/ANSI 61 certified, code compliant, two-component; 3:1 mix ratio by volume) high performance cement and silane hybrid anchoring system with an extended installation temperature range from 5ºF to 104ºF. It has been tested for use with threaded rod and rebar in cracked and uncracked concrete in accordance with ACI 355.4 and ICC-ES AC308.

Ultrabond 2 Epoxy 22 oz. Cartridge
Cure Schedule1,2,3
Base
Material
Temperature
Working
Time
Full
Cure Time
5º F (-15º C) 60 min 36 hr
14º F (-10º C) 30 min 24 hr
23º F (-5º C) 20 min 8 hr
32º F (0º C) 13 min 4 hr
41º F (5º C) 9 min 2 hr
50º F (10º C) 5 min 1 hr
68º F (20º C) 4 min 45 min
86º F (30º C) 2 min 30 min
1. Working and full cure times are approximate, may be linearly interpolated between listed temperatures and are based on cartridge/nozzle system performance.
2. Application Temperature:
Substrate and ambient air temperature should be from 5-104º F (-15 - 40º C)
3. For temperatures below 41º F, warm adhesive to a minimum of 41º F, otherwise install the adhesive at ambient temperature.
Performance in Accordance with ASTM C811 1,2,3
Property Cure
Time
ASTM
Standard
Sample Condition Temperature
Class A Class B Optional Class C
5º F
(-15º C)
50º F
(10º C)
75º F
(24º C)
104º F
(40º C)
Gel Time
60 Gram Mass 4
- C881 78 min 12 min 5 min 2 min
Compressive
Yield Strength
7 Day D695 10,760 psi
(74 MPa)
10,230 psi
(70.5 MPa)
9,380 psi
(64.7 MPa)
9,260 psi
(63.8 MPa)
Compressive
Modulus
7 Day D695 443,100 psi
(3,055 MPa)
365,300 psi
(2,519 MPa)
377,900 psi
(2,606 MPa)
346,200 psi
(2,387 MPa)
Bond Strength
Hardened to Hardened Concrete
2 Day C882 2,530 psi
(17.4 MPa)
2,010 psi
(13.9 MPa)
2,030 psi
(14 MPa)
2,260 psi
(15.6 MPa)
14 Day 2,800 psi
(19.3 MPa)
2,430 psi
(16.8 MPa)
2,240 psi
(15.4 MPa)
3,300 psi
(22.8 MPa)
Bond Strength
Fresh Concrete to Hardened Concrete
14 Day C882 2,660 psi
(18.3 MPa)
Consistency or Viscosity - C881 Non-Sag
Heat Deflection 7 Day D648 156º F
(69º C)
Water Absorption 14 Day D570 0.9%
Linear Cooefficient of Shrinkage - D2566 0.003%
1. Product testing results based on representative lot(s). Average results will vary according to the tolerances of the given property.
2. Full cure time is listed above to obtain the given properties for each product characterized.
3. Results may vary due to environmental factors such as temperature, moisture and type of substrate.
4. Gel time may be lower than the minimum required for ASTM C881.
Ultrabond 1 Epoxy Concrete Anchor System

The Ultrabond 1 adhesive is in accordance with ASTM C881 Type I, II, IV Grade 3 Class A, B and C, as well as AASHTO M235. There are multiple Department of Transportation approvals for the product, which will be made available by Williams Form Engineering Corp., upon request.

ULTRABOND 1 is a two-component, 1:1 mix ratio, structural epoxy system that offers exceptional strength in dowel and anchoring systems from 40ºF to 104ºF. ULTRABOND 1 in cartridge form has been tested in accordance with ASTM E488 and ASTM E1512 for it capability to resist static, dynamic seismic and wind loads in uncracked concrete for bother threaded rod and rebar.

Ultrabond 2 Epoxy 22 oz. Cartridge
Cure Schedule1,2,3
Base
Material
Temperature
Working
Time
Full
Cure Time
40º F (4º C) 36 min 72 hr
75º F (25º C) 20 min 24 hr
110º F (43º C) 12 min 18 hr
1. Working and full cure times are approximate, may be linearly interpolated between listed temperatures and are based on cartridge/nozzle system performance.
2. Application Temperature:
Substrate and ambient air temperature should be from 40-100º F (4 - 24º C).
3. When ambient or base material temperature falls below 70º F (21º C), condition the adhesive to 70 - 75º F (21 - 24º C) prior to use.
Performance in Accordance with ASTM C811 1,2,3
Property Cure
Time
ASTM
Standard
Sample Condition Temperature
Class A Class B Class C
38º F
(3º C)
50º F
(10º C)
75º F
(24º C)
Gel Time
60 Gram Mass 4
- C881 38 min 20 min 14 min
Pot Life 5,6 - - 13 min
Compressive
Yield Strength
7 Day D695 10,860 psi
(74.9 MPa)
10,490 psi
(72.3 MPa)
11,410 psi
(78.7 MPa)
Compressive
Modulus
7 Day D695 209,000 psi
(1,441 MPa)
211,000 psi
(1,454 MPa)
244,000 psi
(1,682 MPa)
Bond
Strength
2 Day C882 2,850 psi
(19.7 MPa)
3,300 psi
(22.8 MPa)
3,580 psi
(24.7 MPa)
14 Day 2,790 psi
(19.2 MPa)
4,090 psi
(28.2 MPa)
3,940 psi
(27.2 MPa)
Consistency or Viscosity - C881 Non-Sag
Heat Deflection 7 Day D648 132º F
(56º C)
Water Absorption 14 Day D570 0.53%
Linear Cooefficient
of Shrinkage
- D2566 0.002%
1. Results based on testing conducted on a representative lot(s) of product. Average results will vary according
to the tolerances of the given property.
2. Full cure is listed above to obtain the given properties for each product characteristic.
3. Results may vary due to environmental factors such as temperature, moisture and type of substrate.
4. Gel time may be lower than the minimum required for ASTM C881.
5. Property not referenced in ASTM C881.
6. Pot life is measured as the workable and applicable time of 1.0 gallon (3.8 L) when mixed at 75º F (24º C).
All-Thread Bar Data
Williams All-Thread-Bars are used with the Ultrabond adhesive for unmatched anchoring versatility and capacities. The Ultrabond adhesive provides a molecular bond to the substrate while coating and protecting the embedded dowel. The epoxy distributes the transmitted load from the dowel into the concrete over the entire surface of the anchor hole. Since the epoxy is stronger than the concrete, the ultimate anchor load will be limited only by the concrete or capacity of the steel. Bars can be ordered cut to length or in stock lengths up to 50 feet for job-site cutting. The 360º thread provides unmatched epoxy to bar bond. Williams offers hex nuts, plates and washers with each anchor bar. Working loads should be based on a 4:1 safety factor from bar ultimate strength. Listed anchor embedment depth based on 3,000 PSI concrete. Williams recommends epoxy dowels to only be specified as passive (non-prestressed) anchors. Williams bars should never be torch cut.
R61 Grade 75 All-Thread Rebar - ASTM A615
R61 Grade 75 All-Thread Rebar - ASTM A615

Bar Designation
Nominal Diameter
& Pitch

Maximum Factored
Design Load
Minimum
Yield
Strength
Minimum
Ultimate
Strength
Approx.
Thread
Major Dia.
Recommended
Hole
Diameter
Maximum
Recommended
Embedment
Depth (2)
Quantity of
Ultrabond
365CC per
Hole (3)
Cracked
Concrete (1)
Uncracked
Concrete (1)
#6 - 3/4" - 5
(19 mm)
11 kips
(50 kN)
23 kips
(102 kN)
33 kips
(147 kN)
44 kips
(196 kN)
7/8"
(22 mm)
1”
(25 mm)
15”
(381 mm)
2.9 oz
(5.2 in³)
#7 - 7/8" - 5
(22 mm)
15 kips
(69 kN)
30 kips
(135 kN)

45 kips
(200 kN)

60 kips
(267 kN)
1"
(25 mm)
1-1/8”
(28 mm)
17-1/2”
(445 mm)
3.8 oz
(6.9 in³)
#8 - 1" - 3-1/2
(25 mm)
20 kips
(89 kN)
39 kips
(174 kN)
59.3 kips
(264 kN)
79 kips
(351 kN)
1-1/8"
(29 mm)
1-1/4”
(32 mm)
20”
(508 mm)
4.9 oz
(8.8 in³)
#9 - 1-1/8" - 3-1/2
(29 mm)
25 kips
(113 kN)
48 kips
(213 kN)
75 kips
(334 kN)
100 kips
(445 kN)
1-1/4"
(32 mm)
1-3/8”
(35 mm)
22-1/2”
(572 mm)
6.1 oz
(11 in³)
#10 - 1-1/4" - 3
(32 mm)
36 kips
(161 kN)
58 kips
(259 kN)
95.3 kips
(424 kN)
127 kips
(565 kN)
1-3/8"
(35 mm)
1-5/8”
(41 mm)
25”
(635 mm)
11.8 oz
(21.2 in³)
#11 - 1-3/8" - 3
(36 mm)
43 kips
(194 kN)
67 kips
(301 kN)
117 kips
(521 kN)
156 kips
(694 kN)
1-1/2"
(38 mm)
1-3/4”
(45 mm)
27-1/2”
(699 mm)
14 oz
(25.3 in³)
#14 - 1-3/4" - 3
(43 mm)
70 kips
(315 kN)
100 kips
(449 kN)
169 kips
(750 kN)
225 kips
(1001 kN)
1-7/8"
(48 mm)
2-1/8”
(55 mm)
35”
(889 mm)
22.2 oz
(40 in³)
#18 - 2-1/4" - 3
(57 mm)
117 kips
(520 kN)
154 kips
(683 kN)
300 kips
(1335 kN)
400 kips
(1780 kN)
2-7/16"
(62 mm)
2-3/4”
(70 mm)
45”
(1143 mm)
49 oz
(88.4 in³)
B8V High Impact Bar - ASTM A193 - Grade B7
B8V High Impact Bar - ASTM A193 - Grade B7

Bar Designation
Nominal Diameter
& Pitch

Maximum Factored
Design Load
Minimum
Yield
Strength
Minimum
Ultimate
Strength
Approx.
Thread
Major Dia.
Recommended
Hole
Diameter
Maximum
Recommended
Embedment
Depth (2)
Quantity of
Ultrabond
365CC per
Hole (3)
Cracked
Concrete (1)
Uncracked
Concrete (1)
1/2" - 13 UNC
(12 mm)
6.4 kips
(28 kN)
15 kips
(65 kN)
14.9 kips
(66.3 kN)
17.8 kips
(79.0 kN)
1/2"
(13 mm)
9/16"
(14.3 mm)
10”
(54 mm)
0.3 oz
(0.5 in3)

5/8" - 11 UNC
(16 mm)

10 kips
(44 kN)
22 kips
(98 kN)

23.7 kips
(106 kN)

28.3 kips
(126 kN)

5/8"
(16 mm)

3/4"
(20 mm)
12-1/2”
(318 mm)
0.9 oz
(1.7 in3)
3/4" - 10 UNC
(20 mm)
15 kips
(68 kN)
30 kips
(136 kN)

35.0 kips
(156 kN)

41.8 kips
(186 kN)

3/4"
(20 mm)

7/8"
(22 mm)
15”
(381 mm)
1.3 oz
(2.4 in3)
7/8" - 9 UNC
(22 mm)
20 kips
(93 kN)
40 kips
(181 kN)

48.5 kips
(216 kN)

57.8 kips
(257 kN)

7/8"
(22 mm)

1"
(25 mm)
17-1/2”
(445 mm)
1.8 oz
(3.2 in3)
1"- 8 UNC
(25 mm)
27 kips
(121 kN)
52 kips
(232 kN)

63.6 kips
(283 kN)

75.8 kips
(337 kN)

1"
(25 mm)

1-1/8"
(28 mm)
20”
(508 mm)
2.3 oz
(4.2 in3)
1-1/8"- 7 UNC
(28 mm)
34 kips
(153 kN)
64 kips
(286 kN)

80.1 kips
(356 kN)

95.4 kips
(424 kN)

1-1/8"
(28 mm)

1-1/4"
(32 mm)
22-1/2”
(572 mm)
2.9 oz
(5.3 in3)
1-1/4"- 7 UNC
(32 mm)
48 kips
(214 kN)
77 kips
(345 kN)

102 kips
(453 kN)

121 kips
(539 kN)

1-1/4"
(32 mm)

1-3/8"
(35 mm)
25”
(635 mm)
3.6 oz
(6.5 in3)
1-3/8"- 8 UN
(35 mm)
58 kips
(259 kN)
91 kips
(405 kN)

129 kips
(575 kN)

154 kips
(684 kN)

1-3/8"
(35 mm)

1-5/8"
(41 mm)
27-1/2”
(699 mm)
9 oz
(16.2 in3)
1-1/2"- 6 NC
(38 mm)
69 kips
(308 kN)
105 kips
(468 kN)

148 kips
(658 kN)

176 kips
(784 kn)

1-1/2"
(38 mm)

1-3/4"
(45 mm)
30”
(762 mm)
10.6 oz
(19.2 in3)
1-3/4"- 5 UNC
(45 mm)
94 kips
(419 kN)
139 kips
(617 kN)

200 kips
(887 kN)

238 kips
(1056 kN)

1-3/4"
(45 mm)

2"
(51 mm)
35”
(889 mm)
14.3 oz
(25.8 in3)
2"- 6 UN
(51 mm)
123 kips
(547 kN)
176 kips
(781 kN)

278 kips
(1237 kN)

331 kips
(1473 kN)

2"
(51 mm)

2-1/4"
(57 mm)
10”
(1016 mm)
18.5 oz
(33.4 in3)
1) Maximum factored design load is based on the bond strength of a single anchor with no reductions due to spacing or edge
distances in an unsustained loading condition, dry concrete conditions, and maximum short term temperature of 176º F (80º C)
and a maximum long term temperature of 122º F (50º C). If sustained loading is present, these values should be reduced by 0.55 per
ACI 318-14, Section 17.3.1.2. Reduction factors and characteristic bond stress for cracked and uncracked concrete are based
on ESR-3770 for Ultrabond 365CC.
2) Recommend embedment depths are based on ACI 318-14, Section 17.3.2.3 with Maximum embedment depth not to exceed 20 bar
diameters. Greater embedments depths may be considered provided each anchor is tested to verify adequate bond strength.
3) Volumes are based on the Maximum Recommended Embedment Depth and the recommended drill hole diameter.
FOR DIFFERENT EMBEDMENT DEPTHS, THE VOLUME CAN BE ESTIMATED BY LINEAR INTERPOLATION.
* Bars larger than 1-1/4” are not included within ESR-3770 for Ultrabond 365CC.
Williams Form Engineering Corp.
Epoxy Anchor
Information
Epoxy Anchor
Design
Epoxy Anchor Applications Parts &
Accessories
Epoxy Anchor
Installation
Installation
Equipment
Case
Histories
Corrosion
Protection
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