According to 26.4.2.1 (a)(5) of ACI 318-19, nominal maximum size of coarse aggregate shall not exceed the least of (i), (ii), and (iii): (i) one-fifth the narrowest dimension between sides of …

This Bulletin describes types of aggregates normally used in concrete, aggregate properties affecting performance of the concrete, tests used to measure aggregate properties, and …

Maximum Size versus Nominal Maximum Size: The specification I prepared for a project calls for “Maximum coarse aggregate size to be 1 in. nominal.”

As the nominal maximum size of the aggregate is increased, the amount of water needed for the same workability is reduced. At the same cementitious material content, strength is therefore …

ASTM C31 requires the cylinder diameter to be 3 times the nominal maximum size of the coarse aggregate. The nominal maximum size of an aggregate is the smallest sieve opening through …

Aggregate packing is one of several factors to consider in selecting aggregates. Aggregate gradings finer than maximum packing density are often preferred. The packing density, along …

In general, a decrease in the maximum coarse aggregate size may have advantages when it comes to concrete compressive strength: “internal weak planes may be less likely to exist, and …

Results indicate that increasing the maximum size of coarse aggregate may not necessarily be beneficial to con-crete strength. Drying shrinkage was not substantial1 increased by reduced …

Maximum (coarse) aggregate size: Water Content, Bulk Volume of Coarse Aggregate, Required air content for Freeze-and-Thaw. Fineness Modulus: Bulk Volume of Coarse Aggregate. Use …

Depending on circumstances such as richness of mix, individual properties of the particular aggregate, and the magnitude of the size difference, an increase in maximum size may result …