What is Loffelstein?

Löffelstein® is a dry stacking, interlocking retaining system. It is unique because of its versatility, adaptability and plantability. Structurally stable – no need for additional concrete infill. All Löffelstein® systems are available in vertical and heavy duty applications.

How do I install Terraforce blocks?

Step by step photographic illustration

1. Prepare a level foundation, gravel or concrete as directed by site conditions.
2. Place first row of blocks to required alignment and ensure that units are level in all directions.
3. Install drainage pipe with outlet and free draining backfill as specified behind first row of blocks.

How do you install a retaining block?

Prep and Lay the Retaining Wall Block

1. Step 1: Dig for the First Row of Block.
2. Step 2: Adjust for Sloping Ground.
3. Step 3: Level the Ground.
4. Step 4: Add Paver Base.
5. Step 1: Prepare the First Row.
6. Step 2: Level the First Block.
7. Step 3: Lay the First Row.
8. Step 4: Adjust for Level.

What is a dry stack retaining wall?

Dry stack walls are built without mortar, the stones are stacked one on top of the other. This makes them naturally draining, which is important when using a wall to retain soil. There is no need to build a foundation below the frost line because the loose stones can shift slightly to accommodate frost heave.

What is gabion retaining wall?

A gabion wall is a retaining wall made of stacked stone-filled gabions tied together with wire. Gabion walls are usually battered (angled back towards the slope), or stepped back with the slope, rather than stacked vertically.

How do you measure a retaining wall block?

To find the total number of blocks needed for the wall, multiply the number of columns by the number of rows; don’t forget to subtract a row if using cap blocks.

What are the types of retaining wall?

Types of retaining walls

• Gravity wall.
• Reinforced Retaining Wall.
• Concrete Cantilever retaining wall.
• Counter-fort / Buttressed retaining wall.
• Cantilevered wall.
• Reinforced Soil Retaining Wall.
• Soil nailed wall.
• Anchored wall.

What is dry stack?

Dry stacking is the most sustainable method used to store filtered tailings — the silty, sandy material that’s left over once the metals are extracted. In the dry stack method, tailings are placed and compacted in a mound that is concurrently reclaimed with native soil and vegetation.

How tall can a dry stack retaining wall be?

Three feet is the maximum recommended height of a stacked stone wall built on a clay surface. It is also the stable height of most stand-alone stone walls. Sandy soil doesn’t absorb water, making it ideal for building a retaining wall without reinforcement.

What are gabions used for?

Gabions are used to slow the velocity of concentrated runoff or to stabilize slopes with seepage problems and/or non-cohesive soils.

Why are gabion walls used?

The principal benefit and practical use for gabion walls, as mentioned above, is to reduce or prevent erosion. This works by absorbing the force of flowing water, as the energy is dissipated by the stone fill, thus protecting areas under risk of erosion.

How do you calculate wall blocks?

Calculate the area of a block by multiplying its height and width. Divide your wall area by the block area. The result is the total amount of blocks you need.

How is block fill calculated?

How to Find Concrete Block Core Fill Volume

1. Step 1: Find the Volume of Each Block Void. Start by measuring the length, width, and height of the holes in the block in inches.
2. Step 2: Find the Number of Voids in the Wall.
3. Step 3: Find the Total Concrete Block Fill Volume.

What is meaning of retaining wall?

Definition of retaining wall : a wall that is built to keep the land behind it from sliding.

What is dry stacking concrete block?

Dry-stacked walls are just as strong and much simpler for a DIY builder. With some dry-stack methods, conventional concrete blocks are simply stacked, and then locked into place by a coating of fiber-reinforced Surface Bonding Concrete (SBC) that is applied to both the inside and outside of the walls.

What is the purpose of dry stone wall?

Dry stone walls provide bare rock for many species such as lichens, liverworts and mosses. As walls mature, gaps between stones can develop a shallow, nutrient-poor soil, which can then provide opportunities for wildflowers.

What is the maximum height of a retaining wall?

Most retaining walls, whether load-bearing or not, average between 3 and 4 feet in height. As a general rule, you do not want to build any sort of structure over 4 feet in height without including some type of structural support within.