Deputy Inspector Epoxy

As the project deputy inspector, epoxy is common for use for anchoring Hold-downs (tension load) and Anchor Bolts (shear load).

Hilti

Most Common Hilti Products:

Hilti HIT-RE-500-V3 || slow cure for concrete all thread or rebar anchors

Hilti HY-200 || fast cure for concrete all thread or rebar anchors

Hilti HIT-100 || fast cure for concrete with low volatile organic compound (VOC) content

Hilti HY-70 || fast cure for masonry all thread or rebar anchors

Simpson

Most Common Simpson Product:

Simpson Set-XP || high strength epoxy adhesive

Use of the piston plug, vertical down and the overhead retaining cap system

(img) Verizon Tower Hilti piston plug epoxy injection

Tips for Vertical Down anchor installation.

-Refer to the product specific ESR

-Concrete hammer drill the hole, 1/8 larger than anchor.

-Measure the depth of the hammer drill bit from the shoulder as this is the location which the anchor will seat.

-When using marking tape, leave a flag which can clean the dust from around the hole, which gives you a better view at the surface of the concrete.

-Preference is to clean the hole with the use of a combined shop vacuum, air compressor and hole type wire brush.

-Use of a depth gauge to verify embedment.

-We will verify the adhesive is not expired, note the lot number and type of adhesive.

-When first running the epoxy adhesive through the mixing nozzle, discard the initial amount of adhesive coming out of the mixing nozzle to the side until the epoxy is uniform in color.

Inject the epoxy adhesive from the bottom of the hole, working up until you have filled the hole approximately 2/3rds full.

-Install the all thread anchor to the embedment depth with a twisting motion to ensure full thread coverage.