ASTM C33/C33M-24a PDF
Name in English:
St ASTM C33/C33M-24a
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Ст ASTM C33/C33M-24a
Original standard ASTM C33/C33M-24a in PDF full version. Additional info + preview on request
Full title and description
ASTM C33/C33M-24a — Standard Specification for Concrete Aggregates. Defines grading, quality, and acceptance requirements for fine and coarse aggregate (excluding lightweight and heavyweight aggregates) intended for use in concrete, and identifies required sampling and test methods and limits for deleterious materials.
Abstract
This specification sets minimum requirements for the grading and physical/chemical characteristics of fine and coarse aggregates used in normal-weight concrete. It covers permitted aggregate types (natural sand, manufactured sand, gravel, crushed stone, air-cooled blast-furnace slag, crushed hydraulic-cement concrete), criteria for deleterious materials and reactivity, and required test procedures (grading, organic impurities, soundness, clay lumps and friable particles, abrasion, reactive aggregate tests, freezing-and-thawing, chert, and others). The standard is issued with both SI and inch-pound units (dual designation C33/C33M) and includes limits and notes for region- or project-specific adjustments.
General information
- Status: Active (current specification, revision 24a).
- Publication date: Published November 6, 2024 (last updated/amendments noted November 18, 2024).
- Publisher: ASTM International.
- ICS / categories: 91.100.30 (Concrete and concrete products).
- Edition / version: C33/C33M-24a (2024A edition).
- Number of pages: 7 (concise specification document).
Scope
The standard defines requirements for grading and quality of fine and coarse aggregates (other than lightweight or heavyweight aggregates) for use in concrete. It is intended for use in purchase documents and project specifications to specify aggregate quality, nominal maximum size, and special grading or property requirements. The standard is intended to be broadly applicable but allows specifiers to impose more restrictive limits where required by aesthetics, exposure conditions, or regional material characteristics.
Key topics and requirements
- Definitions of permitted aggregate types: natural sand, manufactured sand, gravel, crushed stone, air‑cooled blast‑furnace slag, crushed hydraulic‑cement concrete, or combinations.
- Grading limits and nomimal maximum sizes for fine and coarse aggregate; procedures for gradation and fineness modulus testing.
- Limits and tests for deleterious materials and impurities, including organic impurities, coal and lignite, clay lumps and friable particles, and chert.
- Durability-related tests: soundness (sodium sulfate or magnesium sulfate), freezing-and-thawing where applicable, and abrasion (Los Angeles) for coarse aggregate.
- Requirements and methods for evaluating alkali-aggregate reactivity and other chemical reactivity concerns.
- Guidance on sampling, acceptance, and use of SI versus inch‑pound units (both systems are provided but treated independently).
Typical use and users
Used by specifiers, structural and materials engineers, contractors, concrete suppliers/ready-mix producers, aggregate producers, testing laboratories, and construction quality personnel to specify, procure, test, and accept aggregates for normal‑weight concrete in building, civil, and infrastructure projects.
Related standards
Commonly used together with ASTM test methods and standards referenced in the specification, such as sieve and gradation methods, sampling procedures, soundness tests, Los Angeles abrasion, and specific chemical/reactivity test methods. It is produced under ASTM Committee C09 (Concrete and Aggregates) and is related to other ASTM C-series documents addressing sampling, testing, and aggregate properties.
Keywords
concrete aggregates; fine aggregate; coarse aggregate; grading; deleterious materials; soundness; Los Angeles abrasion; alkali-aggregate reactivity; sampling; C33; C33M; ASTM; aggregate specification.
FAQ
Q: What is this standard?
A: ASTM C33/C33M-24a is the ASTM Standard Specification for Concrete Aggregates, specifying grading, quality, and required tests for fine and coarse aggregates used in normal‑weight concrete.
Q: What does it cover?
A: It covers permitted aggregate types, grading limits, limits on deleterious materials and reactivity, required sampling and test procedures (soundness, abrasion, organic impurities, clay lumps, reactive tests, etc.), and guidance on unit systems and project specification use.
Q: Who typically uses it?
A: Contractors, concrete suppliers, structural/materials engineers, aggregate producers, testing laboratories, and specifiers who need to procure or verify aggregate quality for concrete.
Q: Is it current or superseded?
A: Current — the active designation is C33/C33M-24a (2024A edition), published in 2024 with noted updates in November 2024.
Q: Is it part of a series?
A: Yes — it is part of ASTM’s C series standards governed by Committee C09 (Concrete and Aggregates) and is commonly referenced alongside related ASTM test methods and concrete material standards.
Q: What are the key keywords?
A: Concrete aggregates, fine aggregate, coarse aggregate, grading, deleterious materials, soundness, abrasion, alkali-aggregate reactivity, sampling, ASTM C33.