It is our pleasure to congratulate individuals who have supported ACI for 25 and 45 years. The support these individuals have shown represents a level of interest and improvement in concrete technology that is the backbone of the Institute. Members like these have made and continue to make ACI a vibrant and diverse organization and lend stability to the Institute. Their unwavering support over the years has helped make ACI the global knowledge leader on concrete

To meet an accelerated construction schedule for a medical center, an innovative formwork system was used. The system comprises slab tables, supported at the column-slab interface, that automatically compensate for deflections occurring during concrete placement. After the floor concrete has reached sufficient strength to carry self-weight and construction loads, the tables are lowered and manually rolled to outrigger platforms outside the building, allowing simple and fast cycling

Self-consolidating concrete (SCC) mixtures were tested and wall and column elements were instrumented to determine formwork pressures during placement. The findings confirm that test methods for evaluating the structural build-up of SCC can be used in conjunction with recently developed prediction models to determine the maximum formwork pressure exerted by SCC. An additional model allows prediction of the rate of pressure drop with time