Knowledge
Practical guides on materials used in concrete, mortar and building elements.
Unsuitable sand leads to cracked, detached plaster. Learn ASTM C144 limits, how fines and clay act, and how to select sand for masonry mortar and plaster.
Maximum gravel size depends on member dimensions, bar spacing and placement method. Learn the common rules and how this choice affects cement use and workability.
Natural and crushed sand compared on particle shape, water demand, workability and strength, with selection notes for concrete, mortar and asphalt.
Record the material type, approximate volume and delivery location so availability and terms can be reviewed.
