23 Questions
What is the purpose of installing an interlocking concrete block retaining wall?
To create additional usable space
How are interlocking concrete wall blocks designed to fit together?
Like a puzzle
What are the interlocking concrete wall blocks composed of?
Cement and aggregate mixture
What is the primary function of a retaining wall?
To hold back the earth from a higher grade
How are concrete blocks laid to form the wall?
Horizontally
In what condition are the concrete blocks molded?
Air-dried condition
What is the final step in building a retaining wall according to the text?
Backfill the wall with clear ¾” stone gravel
What should be used to cut the blocks when reaching the end of the retaining wall?
Masonry saw
What type of pattern should the interlocking concrete block retaining wall units remain in?
Running bond pattern
What should be done with the coping units once the wall has been built?
Glue them to the top row of blocks using high-quality concrete adhesive
What is recommended to prevent the “drainage zone” from getting clogged up with soil behind the retaining wall?
Backfilling with clear ¾” stone gravel
What are Unilock heavy-duty wall blocks designed to provide for retaining walls?
Stability, security, and visual appeal
What is the purpose of using geotextile fabric or DriveGrid at the bottom of the trench?
To prevent uneven soil settlement
Why is it important to choose the right interlocking concrete block for a retaining wall?
To ensure a secure and stable connection
What is the role of a tongue and groove system in interlocking concrete blocks?
It locks units to each other without needing adhesive
When is a retaining wall considered 'structural'?
When it is holding up a critical weight such as a driveway or raised patio
What is the minimum depth of the trench required for a 6-inch high block?
12 inches
Why is it necessary to mark the layout using grade stakes and string lines before building the wall?
To accurately determine the quantity of retaining wall blocks needed
What should be done before laying the aggregate base for a retaining wall?
Compact any loose subsoil
What is the purpose of using Universal Base Pad or U-Grip Base Pad during installation?
To ensure a solid installation
Why should there be a minimum of 18 inches of clear gravel separating the retaining wall from the soil embankment?
To prevent water and frost damage to the wall
What is the function of a structural retaining wall?
To hold up significant weight like a raised patio or driveway
What role does concrete adhesive play in installing interlocking concrete blocks?
It is used when blocks lack a locking mechanism for connection
Learn how to build a retaining wall using interlocking concrete blocks in 11 comprehensive steps. Understand important factors to consider before starting the construction process and explore a range of heavy-duty Unilock concrete blocks for your project.
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