FLP Builder Pack

13/03/2009 by info.

HOW TO US FLP BUILDER - FOR SEPERATION

1. Selecting the aggregate
This can comprise crushed stone, chippings, pebbles, gravel etc – containing a mix of angular large to small materials which can be well compacted to provide a stable surface.

The maximum stone size should not exceed a third of the compacted depth, thus avoiding point loading onto the FLP Builder.  Don’t forget single-size rounded stone will not compact but move around under traffic and be displaced. 

2. Depth of aggregate and sand required
You will need about 15 to 23 cm (6 to 9”) of compacted aggregate to support a surface for light vehicles; while for pedestrian use, a compacted aggregate depth of 10 to 15cm (4 to 6”) should be enough.Depth of sand bedding layer under paved areas should be about 4 to 5 cm (1.5 to 2”). 

3. How to prepare the ground
First clear the area of any large stones or other objects which would damage the FLP Builder during installation.  Level the area by removing any undulations and fill any ruts.
Grass can be left undisturbed but treat any persistent weeds such as thistles and docks with a strong, lasting weedkiller, such as sodium chlorate.

4. Laying the FLP Builder
Keep the FLP Builder wrapped against exposure to sunlight until you use it; then lay the FLP Builder directly on top of the levelled ground, weighting the edges if windy. 

5. Cutting and joining
You can easily cut FLP Builder to shape with a sharp knife, and you can span any required area by overlapping FLP Builder by 30 cm (12”). 

6. Putting down the aggregate
FLP Builder is very strong, and will not be damaged by laying and compacting the aggregate provided you go about this sensibly.  Dump the aggregate and push it forward onto the FLP Builder to the required depth allowing for compaction.  Try to avoid running machinery over the FLP Builder until it is covered with the required depth of material.  Do not traffic the area until the stone has been adequately compacted.  Just simple, sensible precautions.
 
7. Compacting the aggregate
Compaction should be thorough enough to provide a solid, stable surface.  Equipment selection will be dependant on the area being treated and the depth of the aggregate being laid. 
For Drainage:
You can use graded or single-size clean stone as fill material with FLP Builder. 

1.After you have dug your drainage trench;  spread FLP Builder over it, and weight it down temporarily if necessary. 

2.Then gradually tip the first layer of fill onto the FLP Builder so that the fabric will line the trench.  Do this carefully to avoid tearing the FLP Builder. 

3.Now fill the trench almost to the top with aggregate, and wrap the FLP Builder over it  - without leaving a double thickness on top.  
If this is a ground-water drain, you can add topsoil to the level of the surrounds and seed with grass. 
If the drain has to cope with surface water as well as ground water cover the FLP Builder with at least 150 mm of pea gravel – which should stay exposed, and will need occasional maintenance. 

4.FLP Builder will achieve maximum permeability only after several days in its wet environment.  Some types of soil are particularly difficult to filter – so do obtain specialist advice if you have doubts about your site. 

Important Note:
The manner in which FLP Builder is installed, the aggregate used and the ground conditions involved can all affect the performance of FLP Builder and the success of your particular project. 

If you are not experienced in carrying out the projects of the type listed in this information, you should seek advice from someone appropriately qualified.  This information is a general guide only and therefore cannot cover all aspects involved.

Posted in Patio & Pathway Geotextile, Driveway | Print | No Comments »