GOST 25100-2011 PDF

Full title and description

GOST 25100-2011 — Soils. Classification (Russian: ГОСТ 25100-2011 «Грунты. Классификация»). The standard defines names, groupings and classification criteria for natural soils used in engineering surveys, design and construction of buildings and structures.

Abstract

GOST 25100-2011 establishes a unified system for classifying soils by composition, structure and engineering properties to support geotechnical investigations, foundation design and earthworks. It provides definitions, classification groups, indexing rules and references to laboratory and field characteristic parameters used to distinguish soil types for construction practice. The standard has since been superseded by a later edition.

General information

• Status: Withdrawn / replaced (superseded by GOST 25100-2020).
• Publication date: Designated 2011 (standard number year); approved by the Federal Agency for Technical Regulation and Metrology on 12 July 2012; some catalogues show an in-force/publication listing of 01 Jan 2013.
• Publisher: Federal Agency for Technical Regulation and Metrology (Rosstandart). Commercial reprints/translations published by standards distributors (e.g., Interstandard / commercial standards houses).
• ICS / categories: 93.020 — Earthworks. Excavations. Foundation construction. Underground works (geotechnical/earthworks classification).
• Edition / version: Edition labeled 2011 (original); replaced by GOST 25100-2020 (new edition published 2020).
• Number of pages: Catalogue listings vary (approx. 42–46 pages in printed/electronic releases; common listings report 45–46 pages).

Scope

The standard applies to natural soils encountered in engineering and construction practice and specifies a classification system by which soils are identified and grouped for use in engineering surveys, design of foundations and earthworks, and for selecting appropriate laboratory and field testing methods. It allows introduction of additional local names/characteristics provided they do not contradict the standard’s classification.

Key topics and requirements

• Definitions and terms for soil as a homogeneous part of a soil massif (by composition, structure and properties).
• Primary classification groups (cohesive, non-cohesive, organic, peat, rock fragments, etc.) and subgroups based on granulometry, plasticity and organic content.
• Rules for assigning soil names and indices for engineering documentation and reports.
• Requirements to reconcile additional (local or industry) classifications with the standard’s framework.
• References to laboratory and field test methods (normative references) used to determine properties that feed into classification.

Typical use and users

Used by geotechnical and geological survey teams, civil and geotechnical engineers, foundation designers, earthworks contractors, regulatory bodies and standards users preparing engineering survey reports, foundation specifications, and construction project documentation where an accepted soil-classification system is required. It is referenced in construction codes and technical regulations.

Related standards

Referenced alongside laboratory and field test standards for soils and foundations (examples include standards on laboratory soil testing, filtration, frost heave and other geotechnical methods). The 2011 edition has been formally replaced by GOST 25100-2020; other related Russian standards and construction codes (SP, SNIP) cite or rely on this classification for engineering practice.

Keywords

Soils; soil classification; грунты; классификация; geotechnical; foundation soils; engineering surveys; soil groups.

FAQ

Q: What is this standard?

A: GOST 25100-2011 is the Russian standard titled "Soils. Classification" that defines a system for naming and grouping soils for engineering and construction purposes.

Q: What does it cover?

A: It covers definitions, classification groups and rules for assigning soil types based on composition, grain-size, plasticity, organic content and related engineering properties; it also cross-references test methods used to determine those properties.

Q: Who typically uses it?

A: Geotechnical engineers, engineering survey teams, foundation designers, contractors performing earthworks, standards bodies and regulators who need a consistent soil classification for design and documentation.

Q: Is it current or superseded?

A: The 2011 edition has been superseded — GOST 25100-2020 replaces GOST 25100-2011; official catalogues indicate GOST 25100-2011 was withdrawn/marked cancelled as part of standards updates (withdrawal entries list cancellation effective 01.01.2021). Users should refer to the 2020 edition for current requirements.

Q: Is it part of a series?

A: The standard is part of the body of geotechnical and earthworks standards (ICS 93.020) and is commonly referenced together with laboratory and field methods for soil testing and construction codes (SP/SNiP). It forms the classification backbone used across related standards and regulatory documents.

Q: What are the key keywords?

A: Soils; classification; грунты; инженерно-геологические; foundation soils; soil groups; geotechnical classification.