LOCK-BLOCK® Retaining Wall Systems - UNITED LOCK-BLOCK LTD.™

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Over the years we have added many shapes and finishes to our UNITED LOCK-BLOCK LTD.™ system.

We produce two sizes of engineered blocks. LOCK-BLOCK® brand, which is full size 4400 Lbs. and the LOCK-BLOCK® Mini brand, which is an exact 1/2 scale model weighing 500 Lbs.

Standard Blocks are keyed on the top and bottom, Flat-Tops on the bottom only, Bench blocks have a false front that make walls look thinner after backfilling, Wedge blocks allow walls to turn or curve.

UNITED LOCK-BLOCK LTD.™ Beams are designed for flexural loading and made by adding a suitable engineered-for-purpose reinforcing steel cage to three, four and five cross blocks.

UNITED LOCK-BLOCK LTD.™ Barriers are specialized road dividers with a female key on the bottom, to fit LOCK-BLOCK® products and have hook and eye closures on the ends to meet Ministry of Transport and Highways (MOTH) requirements. Look under the Highway Barrier tab for pictures.

Finishes - We produce five standard finishes as shown (below). You may be surprised at how inexpensive a custom finish can be! Anything you can do with concrete you can do with a UNITED LOCK-BLOCK LTD.™ unit.

You will be surprised at our low custom fabrication costs and rapid turnaround times.

Keyed Blocks

Full

Full Half-Height

Half Block

Half-Height Half Block

Three Cross

Four Cross

Five Cross

Gutter Block

Flat Tops

Flat Top

Half-Height Flat Top

Half Flat Top

Half-Height 1/2 Flat Top

Transitions


Keyed Transition	Flat Top Transition	2 to 1 Transition	Half Transition

Benches


Full Bench	Right Inside Corner Bench	Left Inside Corner Bench	Left Corner Bench	Right Corner Bench


Left Bench Transition	Right Bench Transition

Special

Full Planter

Half Planter

Full Stairs

Half Stairs

Wedge

Flat Top Wedge

Bench Wedge

General Specifications : Full Size Standard UNITED LOCK-BLOCK LTD.™ unit
Dimensions	29.5 x 29.5 x 59"
Weight	1900 kg / 4190 lbs
Face or Bearing Area	1.125 sq meter / 12.8 sq feet
Mating Key Clearance & Play
	12mm / 0.5 inch (longitudinal & transverse)
Minimum Radius of Curvature for Vertical Curves
	23 meters / 75 feet
Lifting Loop
Minimum breaking strength	35,000 Lbs / 15900 Kg verified by mill certificates
Description	7 strand galvanized PC cable formed for purpose and designed by a Professional Engineer
Intended purpose	For handling, shipping, and hoisting UNITED LOCK-BLOCK LTD.™ units into final position.
Caution	Our standard loop is not intended for hoisting blocks overhead or use as a test weight or as a permanent embedded structural anchor. Please inspect for overall condition prior to hoisting a weathered or used unit.
Quality Control
	Verified and under the direct supervison of a licensed Professional Engineer
Concrete Strength
Guaranteed Strength	Produced to suit. Verified by standard test cylinders with results conforming to CSA A23.1.17.6.7.1 Field confirmation (if required) by non-destructive testing. Units are tagged to correlate with representative test results.
As Produced (No Strength Guarantee)	Typically 20Mpa or 3000Psi verified (if required) by non-destructive testing.
Concrete Air Content
When Specified	Produced to suit. Measured by plastic concrete testing by the volumetric or pressure method.
When Not Specified	As produced
Concrete CSA Exposure Class
When Specified	Produced to suit.
When Not Specified	Class N
Typical Wall Assembly Time
	Bottom levelling course – 25 blocks per hour
	Subsequent courses – 60 blocks per hour maximum witnessed speed