Use Solid Blocks and Avoid Improper Core Filling

What happens here

The video cautions against using hollow blocks and improper core filling techniques. Hollow blocks are often chosen because they are less expensive, lighter, and quicker to install. However, when these blocks are core-filled with unsuitable materials like pea rock, the fill can settle over time, compromising the block's stability and leading to premature wall failure. The presenter advocates for solid pinned units, like those from Versa-Lok, which do not require core filling and are designed for greater stability. Additionally, it is noted that no compaction should occur within 3 feet of the back of the retaining wall to prevent disturbing the soil and aggregate behind it.

Goal: Ensure structural integrity and prevent settlement of retaining wall blocks.