UltraCrete Envirobed HA104 Full Pallet x 48 bags

Technical information

How to mix Envirobed HA104

Envirobed can be mixed by a forced action mixer or by drill and paddle.

Mechanical Mixing instructions

1. Pour contents of polymer liquid bottle into a wide based mixing vessel such as a Gorilla tub, leaving a small amount in bottle.
2. Add half the bag of UltraCrete Envirobed® CD534 powder and mix with a slow speed forced action mixer (around 300-400rpm) until the powder is absorbed.
3. Add a further quarter of the powder and mix followed by the remaining powder.

Drill and paddle mixing instructions

We recommend a grout mixing paddle with a slow speed drill and paddle (around 300-400rpm), using a wide based mixing vessel such as a Gorilla tub. Mix for at least 3 minutes. Note: Insufficient mixing will seriously reduce the performance of the product. Do not add water or part mix.

How to apply Envirobed HA104

For a full bed:

1. Apply the high performance bedding material over a pre- soaked area.
2. Once mixed, Envirobed® CD534 should be applied to the supporting structure within 4 minutes.
3. Firm well into position using a float and allowing a 5mm excess thickness.
4. Place the frame onto the bedding mortar ensuring the frame flange is fully supported. Check that the frame does not overhang the mortar at any point (use suitable lifting equipment when positioning the frame). Care must be taken to prevent voids in the bedding material under the frame.
5. The frame should then be tamped into place using a string line, to ensure the correct level is obtained.
6. Any holes within the frame should be in-filled and the flanges of the frame enveloped by a minimum thickness of 10mm with the bedding material.
7. Exposed surfaces of the bedding material should be float finished, ensuring voids are filled.
8. Remove loose materials and point the inside surface to a smooth finish.
9. Once the bedding material has reached its initial set, the backfill material UltraCrete QC10/F or Envirobed® Flowable can be placed.

Damming Mortar:

Place the mortar in the gap on the inside face of the frame and chamber top using a trowel or heel of a gloved hand, taking care to leave no voids to produce a ‘dam’ and pointed smooth finish. Allow to stiffen.