Influence of sand fineness modulus on slump and bleeding rate Influence of sand fineness modulus on concrete mix Effect of sand fineness modulus on concrete strength Mud content in the sand Selection of stones (pebble concrete vs crushed stone concrete) Gradation of stone particles Mud content of the stone Needle-like particles content Stone size Stone powder content Content of weathered stone Stones that are likely to have an alkali-aggregate reaction (AAR) Cement Water quality Water-cement ratio Curing temperature and humidity Concrete age Construction method