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Bookmark or Share- topicdetail - American Concrete InstituteThe American Concrete Institute (ACI) is a leading authority and resource worldwide for the development and distribution of consensus-based standards, technical resources, educational programs, certification programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
- ASTM C33/C33M-18, "Standard Specification for Concrete Aggregates."Keywords: DOI: 10.1520/C0033_C0033M-18. Date: 4/1/2018. Abstract: This specification defines the requirements for grading and quality of fine and coarse aggregate for use in concrete. Fine aggregate shall consist of natural sand, manufactured sand, or a combination thereof. Fine aggregate shall be free of injurious amounts of organic impurities.
- What Aggregate Packing is Optimal? - American Concrete InstituteAggregate 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 with shape, is useful in determining amount of paste required. Consider the combined solid particle size distribution.
- Recycled Concrete AggregateEconomics. Cost savings of $ 2.00 to $ 4.00 per ton estimated from several states. Savings of up to $ 6.00 per ton experienced in areas with limited supply of virgin aggregates. Most states do not differentiate in bids, so actual cost savings difficult to document.
- ACI 213R-14 Guide for Structural Lightweight-Aggregate ...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 aggregates. Current practices for propor-tioning, mixing, transporting, and placing; properties of hardened concrete; and the design of ...
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