Does concrete and CleanCrete absorb CO2?
Slowly, over time, small amounts of the calcium hydroxide compound within any concrete will combine with atmospheric CO2 to form calcite. Mostly, this process occurs at the surface or within a few millimeteres of the surface, and it is known as “adsorption”. There is new, yet somewhat anecdoctal, evidence that other compounds within concrete will also absorb CO2 in even smaller amounts. The cement industry is making much of this news, but the truth is the amounts of CO2 that can be adsorbed and absorbed are mere trifles compared to the emissions produced through the manufacture of cement. These emissions will always outpace CO2 uptake through adsorption and absorption. Q: Can CleanCrete be used in structural columns, beams, footings, retaining walls and shear walls? A: Yes, the various CleanCrete mix formulations address the varying structural applications of any given project. Depending on the compressive, tensile and flexural strength required for a job, we have a mix which can excee
