GOST 310.2-76 PDF

Full title and description

GOST 310.2-76 — "Cements. Methods of grinding fineness determination" (Russian: "Цементы. Методы определения тонкости помола"). The standard specifies test procedures used to determine the fineness (degree of grinding) of cement, including sieve/residue procedures and provisions for mechanical or pneumatic sieving.

Abstract

This standard establishes methods to measure the fineness of cement particles, primarily by determining the percentage residue retained on a standard sieve (sieve No. 008 — 0.08 mm). It defines sampling, sample preparation, sieving procedures (manual, mechanical, or pneumatic), calculation of results and reporting formats used for quality control and acceptance testing of cement.

General information

• Status: Sources differ: several national/regulatory libraries list the standard as "in force/active" while some commercial databases report it as withdrawn/archived (discrepancy between databases). Consult a national standards body or a validated standards library for the official current status in your jurisdiction.
• Publication date: Introduced for use 01 January 1978 (approved 14 October 1976).
• Publisher: Formerly published/maintained by the USSR Gosstandart / Межгосударственный стандарт (interstate standard system); contemporary reproductions are available from standards resellers and national standards bodies.
• ICS / categories: 91.100.10 — Cement, lime, gypsum, mortar (construction materials).
• Edition / version: Original designation GOST 310.2-76 (introduced 1978); includes at least one published amendment (Amendment No. 1, 1984). Some commercial editions note later reprints or republications.
• Number of pages: Typically short — most catalog records list 3 pages (some databases report 3–4 pages depending on scanned edition).

Scope

Applies to all types of Portland and blended cements and sets out standard laboratory procedures to determine cement fineness for quality control and acceptance testing. The standard's principal method is the sieve (residue) technique using sieve No. 008 (80 μm); provisions are given for manual, mechanical, or pneumatic sieving and handling of test samples. It is intended for use by cement producers, testing laboratories and regulatory inspectors.

Key topics and requirements

• Definition of fineness of grind expressed as percentage residue on sieve No. 008 (0.08 mm).
• Requirements for sample conditioning (drying), sample mass and weighing accuracy before sieving.
• Procedures for manual, mechanical and pneumatic sieving; end criteria for sieving (e.g., control sieving limits).
• Calculation and reporting of residue percentage to specified precision (typically to 0.1%).
• References to related test methods and normative documents used in cement testing.

Typical use and users

Used by cement manufacturing quality laboratories, independent testing laboratories, materials laboratories for construction, regulatory authorities overseeing cement standards, and researchers evaluating cement grinding or milling performance. Typical tasks include routine quality control of production batches, incoming inspection, comparison of mills/grinding efficiency, and supporting compliance with product specifications.

Related standards

GOST 310.1-76 (Cements — general test methods and provisions), GOST 6613-86 (sieve specifications), and later/parallel international standards that address fineness and specific surface (for example EN 196-6 and Blaine/air-permeability methods) are commonly cited alongside GOST 310.2-76. Laboratories may use GOST 310.2-76 together with other cement testing standards to give a complete property profile.

Keywords

cement; fineness; fineness of grind; sieve No. 008; 0.08 mm; residue on sieve; cement testing; quality control; GOST 310.2-76; methods of determination.

FAQ

Q: What is this standard?

A: GOST 310.2-76 is a national (Soviet / interstate) standard titled "Cements. Methods of grinding fineness determination" that sets out laboratory procedures to determine cement fineness, primarily by sieve residue on sieve No. 008 (0.08 mm).

Q: What does it cover?

A: It covers sampling and sample preparation, the sieve (residue) method (manual, mechanical, pneumatic), criteria for completion of sieving, calculation of percentage residue, and reporting requirements for fineness results.

Q: Who typically uses it?

A: Cement producers, plant and independent test laboratories, construction-materials laboratories, regulatory inspectors and researchers concerned with cement quality and grinding efficiency.

Q: Is it current or superseded?

A: Databases disagree: many standards libraries and sellers list GOST 310.2-76 as currently in force (with reprints), while some commercial records show it as withdrawn or archived. For legal or regulatory use you should verify the current official status with your national standards body or an authoritative standards register before relying on it for compliance.

Q: Is it part of a series?

A: Yes — it is one part of a set of GOST standards on cement testing (for example GOST 310.1-76, GOST 310.3-76, etc.), where each part addresses specific test methods or properties of cement.

Q: What are the key keywords?

A: Cement, fineness, sieve residue, sieve No. 008 (0.08 mm), grinding fineness, quality control, GOST 310.2-76.