Over 80 years of experience in structural stabilization and foundation work, including engineering and contractor services related to drilling and grouting, anchor and tieback systems, installation of instrumentation, and cellular concrete and fly ash placement.

Concrete Anchors

The Judy Company develops & installs anchoring systems of rock bolts, rock anchors, tiebacks, tiedowns, earth anchors, soil nails, concrete anchors, & post-tensioned tendons.

Rock and concrete anchors are pre-stressed tendons can be bars or multiple strands. A portion of the length is bonded to rock or concrete by cement grout, resin, or fixed by a mechanical anchor. The upper portion, or free length, is left un-grouted for pre-stressing, but is grouted afterwards to lock in tension and protect against corrosion.

Applications of Rock and Concrete Anchors Include

Retaining walls
Tower bases
Concrete structures
Concrete form hardware
Tunnels
Mines
Dams
Bridges
Slope stabilization
Rock fall protection

Advantages of Rock and Concrete Anchors

Bond length or hole diameter can be varied to adjust to changing conditions
Bonding can be by cement, resin, or mechanical
Anchors can be passive (unstressed) or prestressed
Anchors can be any length, even hundreds of feet
Single, double, or multiple layers of corrosion protection are available
Various strengths of steel up to 150 ksi available
Work in rock, either solid or broken, concrete, and many types of soil
Tendons are coupled or coiled allowing installation with limited access
Stranded tendons can be fabricated for extremely >> high capacity load