INDUSTRY INSIDER

From grey to green: The concrete revolution

Neocrete
Neocrete

Reducing New Zealand concrete's carbon footprint

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Neocrete
Neocrete

Reducing New Zealand concrete's carbon footprint

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New Zealand pours four million cubic metres of concrete each year, producing 1.4m tonnes of greenhouse emissions. 

Over the years, the industry has managed to reduce emissions from cement making - mainly through the addition of fly ash, a waste product from coal-fired power stations and boilers. The problem is that fly ash can also double the time it takes for the concrete to set, resulting in longer building timeframes and higher construction costs.

D5 Green is an innovative, BRANZ appraised concrete additive which significantly increases the strength of concrete. This allows for a substantial reduction in cement content and therefore a substantial reduction in its carbon footprint. 20% with D5 Green alone, and up to 41% with supplementary cementitious materials.

 

If New Zealand concrete production used D5 Green across the board, a best case scenario would see a reduction in carbon emissions equivalent to removing 100,000 cars from our roads each year.

Lattey Group have some major projects starting later this year where this innovative product will be used. Trials are currently under way and are looking very promising. Neocrete is the exclusive distributor of D5 Green in New Zealand.