GOST 31108-2020 PDF

Full title and description

GOST 31108-2020 — "Цементы общестроительные. Технические условия" / "Common cements. Specifications". A межгосударственный (GOST) standard that establishes terms, classification, composition, technical requirements, test methods, marking, packaging, transportation, storage and rules for confirmation of quality for general-purpose construction cements manufactured on the basis of portland cement clinker.

Abstract

This standard defines requirements for common construction cements (composition limits, types/classes, strength grades, chemical limits such as SO₃ and chloride content, allowed mineral and auxiliary additions), prescribes test and acceptance procedures, marking and packaging rules, safety and storage/transport conditions, and statistical methods for demonstrating conformity of cement quality. It replaces earlier national GOSTs for portland and common cements and provides a unified regulatory framework for manufacturers, testing laboratories and regulators in the signatory states.

General information

• Status: Active / In force (national adoption by Rosstandart; applied as a national standard of the Russian Federation).
• Publication date: Approved 4 August 2020 (order of Rosstandart N 453‑ст). Date of introduction: originally set 1 March 2021; implementation date later recorded as 1 January 2022 with right of early application.
• Publisher: Federal Agency on Technical Regulating and Metrology (Rosstandart) / Interstate standards system (GOST).
• ICS / categories: 91.100.10 — Construction materials; Cement, gypsum, lime, mortar.
• Edition / version: Edition 2020 (ГОСТ 31108-2020). Introduced in 2020; replaces ГОСТ 31108-2016 and ГОСТ 10178-85.
• Number of pages: Vendor/publication editions vary (commonly listed between 20 and 25 pages depending on publisher/format).

Scope

The standard applies to general-purpose (common) cements produced on the basis of portland clinker and sets requirements for the raw components and material composition, types and classification of cements, physical and chemical characteristics, strength classes, test methods for control and acceptance, packaging, marking, transportation and storage, safety requirements and rules for statistical confirmation of quality. It does not cover cements that are subject to special technical requirements governed by other normative documents.

Key topics and requirements

• Classification of common cements by type (CEM I, CEM II, CEM III, etc.) and by strength classes and setting behaviour.
• Permitted composition and proportions of mineral additions and auxiliary components; limits on alkalis, SO₃ and chloride contents; restrictions on certain raw materials (e.g., prohibitions on use of marl/chalk as specified materials in some cases).
• Physical and mechanical requirements (compressive strength classes expressed in MPa), test methods and sampling rules for acceptance and periodic control.
• Requirements for marking, labeling and packaging, including information to be provided on packages and in quality documents.
• Rules for transportation and storage to maintain declared properties and safety requirements for handling.
• Procedures for confirmation of conformity of cement quality by statistical evaluation (including use of established statistical criteria and references to ГОСТ 30515 for assessment methodology).
• Provisions for transitional application and references to replaced standards (notably ГОСТ 31108-2016 and ГОСТ 10178-85).

Typical use and users

Primary users are cement manufacturers and production quality engineers, independent and factory testing laboratories, construction materials researchers, certification bodies, procurement specialists and regulatory authorities overseeing construction materials. The standard is used to write factory technical specifications, to prepare certificates of conformity and quality, and to set acceptance criteria for concrete and mortar producers who use common cements.

Related standards

Replaces or updates: ГОСТ 31108-2016 and ГОСТ 10178-85. Normative references and related documents include standards on statistical methods of conformity assessment (e.g., ГОСТ 30515) and other GOSTs and industry standards referenced in the normative references section of ГОСТ 31108-2020.

Keywords

cement; common cements; portland clinker; cement composition; cement classification; strength class; test methods; marking; packaging; storage; conformity assessment; ГОСТ 31108-2020.

FAQ

Q: What is this standard?

A: ГОСТ 31108-2020 is the interstate (GOST) standard titled "Цементы общестроительные. Технические условия" (Common cements. Specifications) that sets the technical requirements, classification and testing/acceptance rules for general-purpose construction cements.

Q: What does it cover?

A: It covers raw-material and composition requirements, types and strength classes, chemical limits (e.g., SO₃, chlorides, alkalis), test methods, sampling, marking, packaging, transportation, storage, safety and procedures for statistical confirmation of quality. It excludes cements governed by special normative documents.

Q: Who typically uses it?

A: Cement producers, quality-control and test laboratories, certification bodies, construction material engineers, regulatory authorities and procurement/specification writers in construction and precast concrete industries.

Q: Is it current or superseded?

A: ГОСТ 31108-2020 is current/active. It was approved by Rosstandart by order N 453‑ст on 4 August 2020 and entered into force per the approval documents (initially set for 1 March 2021 and later administrative scheduling records indicate a 1 January 2022 implementation date with the possibility of early application). The standard replaces the earlier ГОСТ 31108-2016 and ГОСТ 10178-85; it has received subsequent amendments/edits recorded in official updates.

Q: Is it part of a series?

A: It is part of the construction materials / cement normative framework within the GOST system and is linked by normative references to related GOSTs (materials, test methods and statistical assessment standards). It effectively consolidates and supersedes earlier cement-related GOSTs for common cements.

Q: What are the key keywords?

A: Cement; common cements; portland cement clinker; cement classification; strength class; test methods; packaging; marking; conformity assessment.