2 research outputs found
Radon exhalation from fly-ash geopolymer mortar
Geopolymers are a type of alkali activated binders,
inorganic aluminosilicate polymers with amorphous cross-linked
structure. Fly-ash is produced in abundance during coal firing,
and poses an environmental and health risk in untreated powder
form. Fly-ash geopolymer presents a sustainable alternative to
Portland cement, due to lower net greenhouse gas emissions.
Presence of naturally occurring radioactive elements in fly-ash is
one of the factors taken into account when estimating the safety
of fly-ash based building materials. Radon, a radioactive noble
gas originating from the decay of radium, can leave the material
and contribute to internal dose in closed spaces, so radon
exhalation is of special interest. Radon exhalation for a standard
sample of fly-ash geopolymer mortar was measured