Assoc. for professionals in the field of concrete design, construction and materials offers membership details. Link to seminars and research.

Meet this technical and education trade association representing the manufacturers of concrete pressure pipes. See company lists and a digest.

IMI offers news from around the industry plus information on training and apprenticeships. With assistance for those seeking a skilled mason.

Connect with the sand, gravel, and crushed stone industry. Find news, events, and research results.

Association interlocking concrete pavers shares a list of products, project profiles, and an installation guide. Also find manufactures links.