Technical Questions

ACI Committees, Membership, and Staff have answered common questions on a variety of concrete related topics.



How should the aggregates and other ingredients be measured to obtain uniformity in proportions?

Q. How should the aggregates and other ingredients be measured to obtain uniformity in proportions?

 

A. Accurately (ACI 304R). The aggregates should be measured by mass. Cementitious material, when shipped in bulk, should always be batched by mass; when shipped in bags, unbroken bags (each of the same net mass) can be used in lieu of batching by mass but fractional quantities should be measured by mass. Water and liquid admixtures can be measured by volume or by mass. In either case the equipment should permit ready adjustment and calibration. Mechanical devices adaptable to a wide range of requirements are obtainable for these different operations.

 

References: SP-1(02); ACI 304R-00

Topics in Concrete: Concrete Fundamentals

Other Sources for Answers

Search other resources on the ACI website for answers to technical questions

Please enter this 5 digit unlock code on the web page.