Létt steypuaukefni | Afkastamikil froðuefni fyrir frumusteypu
Loftblanda fyrir frost-þíðuþol: Hagur vs. Gallar
Hættu að giska. Use an air entraining admixture for freeze-thaw resistance in any exterior concrete in a cold climate. That is the short answer. Water expands by 9% when it freezes. If concrete…