IBA Aggregate from Ballast Phoenix was specified for the construction of a vehicle storage area at Portbury Docks.
The IBA Aggregate was used to create a capping and sub base layer at 200mm depth across the area of the Court House Farm site. The area was then to be covered by 60mm Binder/Surface Course asphalt layer.
The requirement was for 18,000 tonnes of Type 1 (impermeable) and 13,000te of Type 3 (permeable) earthworks materials.
To date Ballast Phoenix have supplied in total circa 8,000te with an anticipated further 8,000te is still required.
The client and the suppliers agreed to take a weekly moisture content (MCV) at source and have externally tested to ensure the T1 meets the maximum 15% (13% +/-2%). The weekly sample tested provided an average of 16%. An in-situ CBR/Plate Load test as per BS 1377 was also to be frequently carried out with a proposed tolerance of a minimum 3%. Ballast Phoenix’s T1 is achieving an average of 27%
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