Pozzolana Cement Feature Article In Costa Rica
Pozzolana Cement Feature Article In Costa Rica. Artsway feed grinders auction results 63 listings.Artsway 425a mixer mill, 540 pto, 3 ton mill, 21 inch hammer mill with 2 unused sides, unloading auger has all new bearings and gears, works great located in epworth, ia call nick with questions 5634956007 please email or contact gina at 3192317213 at auction end to arrange
pozzolana
pozzolana, also spelled pozzuolana, hydraulic cement perfected by the Romans and still used in some countries, traditionally made by grinding a material of volcanic origin the pozzolan with powdered hydrated lime. Roman engineers used two parts by weight of pozzolan mixed with one part of lime to give strength to mortar and concrete in bridges and other masonry and