. "Type II 32.5R and Type II 42.5R" . "cement" . . . . "Portland_cement#Environmental_effects" . "Portland cement" . . "portland cement" . "Portland" . . "Portland render" . "Portland Cement" . "Specification for Portland Cement" . . . . "cast-in-place" . . . "Portland-based" . "Portland Cement Works" . "ordinary Portland cement" . . . . . "cement production" . . . . . . . . . . . . . . . "cement works" . "Portland limestone cement" . "modern concrete" . "Portland_cement#General" . . . . . . "portland" . . . . . . . "general purpose concrete" . "Portland cement" . . "General Portland Cement" . . . . . . . "Portland-type cements" . . "ASTM C150" . . "OPC" . . "development of modern cement" .