Tried, tested, trusted

D5 Green has been used in residential and infrastructure projects in New Zealand, including floor slabs and precast panels, and major overseas projects from high rises to hydro stations. To give local customers additional data and confidence, we have been independently testing D5 Green in New Zealand and Australia since 2018. D5 Green is BRANZ appraised for durability and water tightness (download BRANZ certificate here).


Independent review of D5 Green’s test results in NZ and Australia

Report by Michael Khrapko*, Concrete Engineer (Consultant), Director of CBE Consultancy.


The scope of the report is to provide an analysis of the D5 performance in comparison to Control and professional opinion on the efficiency of D5 additive on a number of different aspects of concrete characteristics.

*Michael is a member of IPENZ (Institute of Professional Engineers of New Zealand), is Chartered Professional Engineer (CPEng) and International Professional Engineer (IntPE).


Compressive strength tests at different ages of concrete

By WSP Opus Research*, April 2019


Compressive strength test reports:

NZS 3112: Part 2: 1986 Clauses 5&6


Age 1 and 3 days



D5 Green at 2%

D5 Green at 3%


Age 7 and 28 days


D5 Green at 2%

D5 Green at 3%


*IANZ Accredited Laboratory


Cradle to gate carbon analysis of D5 Green

By Edge Environment*, Sydney 2019​

Neocrete commissioned Edge Environment* to conduct a scoping life-cycle assessment (LCA) of the carbon footprint of a range of concrete mixes with and without D5 Green.


The primary intended audience for the LCA is building and infrastructure project teams specifically focused on green ratings such as Green Star and Infrastructure Sustainability Rating.


This LCA shows:


– up to 20% greenhouse gas reduction per cubic meter of ready-mix concrete from cradle to gate from the use of D5 Green;


– and up to 33% greenhouse gas reduction from a combination of cement substitution and the use

of D5 Green.

*Member of Green Building Council Australia, contributes to Green Star’s Technical Advisory Group.


*Member of the Infrastructure Sustainability Council of Australia, and technical working group members.


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