by
BuildingGreen, LLC
Conventional foundations, footers, and slabs use a lot of concrete, which is energy-intensive and polluting to produce—up to a ton of CO2 is released in producing a ton of cement. Admixture components such as calcium chloride (an accelerator), gypsum (a retarder), and sulfonated melamine formaldehyde (SMF, a plasticizer) also affect the ...