This laboratory manual, prepared for a 2-year program in junior colleges and technical institutes, is designed to accompany the instructional materials to train persons for employment as technicians in the cement and concrete industries. Included are 16 laboratory assignments for each of the following: (1) Principles of Concrete, (2) Concrete in the Field-I, (3) Concrete in the Field-II, and Special Concretes and Field Problems. ASTM Standards related to the use of cement and concrete, and laboratory equipment lists are appended. This manual and related materials are currently being field tested prior to revision and should be available in revised form by late 1972. Related documents are available as VT 010 140-VT 010 141 and VT 010 150-VT 010 152. (GR)