Common Retaining Wall Considerations

rv2010

September 26, 2015

Uncategorized

Retaining Wall Jobsite Considerations
First contracting out this job is an important consideration.  Pick any contractor like the ones at Concrete and Asphalt St. Louis Contractors.
Materials that are staging
Where will you stage your materials?
Before starting a retaining wall project being prepared with the proper equipment and tools is very important. Here are a few other items to think about prior to getting started:
Access
When planning your job, make sure your wall site can be accessed by you with materials and building equipment. For sites with restricted access, plan out where you are going to stage and store other materials, wall rock and your block.
Wall Rock
To build an excellent wall, make use of a tidy, granular stone underneath the base course to make a strong foundation for your endeavor.
Compaction and great drainage will increase performance and the quality of your finished wall.
Smashed or smooth rock, well graded, compactable aggregate, ranging in size from 0.25 in. to 1.5 in. Your merchant will have what you require.
Have appropriate tools on hand
Safety First
Recall: Safety always comes first.
Hand Tools
Power Tools
Rental Equipment
Concrete saws, plate compactors, skid loaders and transit levels are extremely useful when building retaining walls. These can be found at most equipment rental services.
Working with Soils
Retaining Wall Fundamental Building Materials
Retaining wall basic building materials
Infill Soil
Preferable granular infill stuff
The soils used below and behind the wall are a critical part of the total wall structure. A reinforced retaining wall comprises three basic building materials – the geogrid reinforcement, the retaining wall blocks, as well as the infill soils.
Extra tips can be found here at Concrete and Asphalt St Louis Retaining Walls and Blocks Contractors
Soils
Comprehending characteristics and the property of soils is essential to building better walls. Different soil types will order the total amount of time needed for compaction, the amount of reinforcement required, and potentially the cost of the wall.
Sand and gravel will not compact better, drain worse, and often will want support that is less. Soils are usually defined by a clash angle or measurement of the internal strength of the soil. This angle is about the natural angle of repose. Check with an experienced geotechnical engineer to obtain an accurate soil classification.
Soil Selection
Natural Angle of Repose
If the onsite soils are of a quality that is very low under or behind the wall, you need to remove and replace them with stronger soils. Using stronger soils will reduce reinforcement, let more rapid compaction and have better long term operation. Organic soils and heavy clays are both not suitable in the reinforced zone and should be removed and replaced. Silty sands and sand with clay will need additional care, and attention to water management when placed and compacted.
Compaction
Compact in lifts in 8
Streamlined in 8 in. (200 millimeters) lifts, one path at a time
Keep all heavy gear at least 3 ft. (0.9m) away from the back of the blocks
Proper placement and compaction of the infill soils is crucial.
The most important measure in receiving proper compaction is the positioning of the soil in “lifts”. Compacting in layers, or lifts, of less than 8 in. (200 millimeters) will facilitate quality compaction. Placement and compaction in lifts that exceed 8 in. (200 mm) will lead to less than sufficient ground strength. Compaction equipment must be sized based on the type of material being compacted. Consistently streamlined and backfill after every path of block is set. Consult with a local equipment provider to make sure that proper compaction equipment is used.
The consolidation zone runs from the back of the block back 3 ft. (0.9 m) into the infill soil. A minimum of two passes with a walk behind plate compactor is needed, beginning on top of the block and compacting in courses that run parallel with the wall to the back of the excavated area.
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