Hi Fei,

Following the process provided by eTool, the offset of concrete is equivalent to the emissions associated with the quantity of traditional concrete. eg to offset 1000m3 of 40MPa concrete, eTool calculates this to be GWP of -540,688 which is the same as if inputting 1000m3 of 40MPa concrete blends. When using an EPD like Boral’s envirocrete, the GWP for 1000m3 is 282,000. When wanting to offset this in a scenario, do we need to delete this EPD, put in the traditional concrete, and then create the offset.

Hope that clarifies