OUR STANDARDS

In fact, concrete is the most-used building material in the world. According to the International Energy Agency’s Technology Roadmap, global cement production is predicted to grow by 12‑23% by 2050.

However, the impacts of cement and concrete production on people and planet can be significant. For example, significant environmental loads stem from the sourcing and manufacturing phase in the life cycle, such as sourcing of raw materials, water and energy usage, and release of CO2.

Improper extraction of raw materials such as sand, for example, can lead to the destruction of coastal and riverine ecosystems. Damage to these natural environments can result in removing vital ecosystem services such as flood control and water purification. Large volumes of concrete in our cities can also contribute to the heat-island effect, raising temperatures in urban areas.

Each year, more than 4 billion tonnes of cement are produced, accounting for around 8% of global CO2 emissions. Over half of these emissions are linked to the process for producing clinker, one of the main ingredients in cement. To bring the cement sector in line with the Paris Agreement on climate change, its annual emissions will need to fall by at least 16% by 2030.

In 2012, a study found that concrete production was responsible for 9% of global industrial water withdrawals, and predicted that by 2050, 75% of the water demand for concrete production would likely occur in regions expected to experience water stress.

Recent sustainable initiatives aim to improve cement and concrete production and composition and lessen its environmental impact. The GECA standard seeks to support and reward these efforts to minimise cement and concrete products’ impacts.

Products certified under this standard can also contribute toward achieving credit points for projects being certified under the Green Building Council of Australia’s Green Star Performance tool. In addition, our standard is also recognised by the ISC IS rating scheme