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Photo Essay page 8 i PoLEMIC Vol. 3 Issue 4 November 17, 1993 - - -----~~~~-=- - Concrete Evidence Aggregates are screened to separate them according to size. T he Concrete Technology Department of ACC isin constant de- mand to meet the needs of an ever changing industry. This is the only two year concrete pro- gram in Michigan and one of only a few in the United States. Various companies throughout the U.S. continually request Con- crete Tech grads to fill their employment needs. Commercial testing and research for industry are included in the Tech area. Although just a small part of what the department entails, The Polemic Photo Page would like to show you, our reader, some of the steps involved in making concrete blocks. Robert Lozen determines the specific gravity of lightweight aggregates. Aggregates and cement are mixed with water. The blocks are cured for approximately 24 hours. The final testing, a compression testing, is done by student Gino Marino. The mixture is dumped into the Besser V3-12 block machine. Instructor Bob Eller examines a "chip off the old block". Photos and page design by Linda Simpson