The American Concrete Institute (ACI) is a leading authority and resource worldwide for the development and distribution of consensus-based standards, technical resources, educational …

Synthetic aggregates may be either byproducts of an industrial process, in the case of blast-furnace slag, or products of processes developed to manufacture aggregates with special properties, as in …

Nov 12, 2025 · Aggregates are the major constituent (ingredient) in concrete, making up 60% to 70% of the volume of concrete. Aggregates influence the workability of plastic concrete and also the …

Apr 1, 2018 · Title: ASTM C33/C33M-18, "Standard Specification for Concrete Aggregates." Author (s): ASTM Subcommittee C09.20 on Aggregates Publication: Commentary Reference Volume: Issue: …

Aggregate types including normalweight, lightweight and heavyweight natural aggregate; blast furnace slag aggregates; and recycled aggregates from crushed reclaimed concrete pavements are covered.

Recycled Concrete Aggregate A Sustainable Choice for Unbound Base ACI Fall 2015 Convention Denver, Colorado November 8, 2015

Aggregate blending Q. What is aggregate blending and why is it done? A. Aggregate blending is the process of intermixing two or more fine or coarse aggregates to produce a combination with …

With the w/cm fixed, the larger the nominal maximum size of aggregates, the lower the cement content for a given consistency. Or, stated differently, for a given cement content, the larger the nominal …

This guide includes a definition of lightweight-aggregate concrete for structural purposes and discusses, in a condensed fashion, the production methods for and inherent properties of structural lightweight …

Aggregate classification by density Q. Are aggregates classified according to density? A. Yes. Those used to make normal-density concrete are called normal-density aggregates. Those for low-density …