| http://www.w3.org/ns/prov#value | - Trainee $18 ISBN 978-0-13-614513-4 Instructor $18 ISBN 978-0-13-614524-027303-07 Properties of Concrete (10 Hours)Describes the properties, characteristics, and uses of cement, aggregates, and other materials that, when mixed together, form different types of concrete.
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