810 Great South Rd, Penrose
Private Bag 99904, Newmarket, Auckland 1149
t: 0800 FIRTH 1 w: firth.co.nz
Firth Industries
Contract Mix Designs
Confidentiality Obligations
The information in this document is the Intellectual Property of Firth Industries and is confidential. It is provided
only for the use on the contract specified below and by the individual named below. If you are not the intended
recipient you may not peruse, use, disseminate, distribute or copy this document.
Issued to:
Hawkins
Engineer to contract (company name)
Benjamin Davidson
Engineer to contract (name)
Contract:
UoA B201
Application: Blockfill
Contractor
: Russell Gordon Contracting
R/Mix Plant
: Hamer St Certified
Mix Design
Date: 09/08/2021
BA2507AW
25Mpa 7mm Blockfill Std
Total Aggregate Content
1453 kg
Total W/B Ratio
0.57
Admixtures
Micro Air 905 -MBS
MasterPolyheed 8840 - MBS
Density
Yield
Chloride Content
Sulphate Content
2137 kg/m3
1.008
0.697 kg/m3
2.4 % of Cement Content
W/B ratio is indicative. Firth reserve the right to modify cementitious content to ensure compliance with NZS3104.
Comments:
Full specification not sighted
Target spread on site 400 ± 50mm
Materials Engineer: