: Observed Deflections of Reinforced Concrete Slab Systems, and Causes of Large Deflections (Reapproved 1997) 1995: ACI. 435R95: Control of Deflection in Concrete Structures (Reapproved 2000) 2010: ACI. Metric Test Method for Bleed Stability of Cementitious PostTensioning Tendon Grout.