ASTM C1905/C1905M-23
(Specification)Standard Specification for Cements that Require Carbonation Curing
Standard Specification for Cements that Require Carbonation Curing
SCOPE
1.1 This specification covers cements that require controlled exposure to carbon dioxide to achieve strength, referred to as carbonation curing. These cements are for use in concrete that does not contain steel reinforcement. There are no restrictions on the constituents of the cement. The producer is required to demonstrate that carbon dioxide is chemically bound by the cement.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. Values are stated in only SI units when inch-pound units are not used in practice.
1.3 If required results obtained from another standard are not reported in the same system of units as used by this standard, it is permitted to convert those results using the conversion factors found in the SI Quick Reference Guide, Annex A in Form and Style for ASTM Standards, www.astm.org/COMMIT/Blue_Book.pdf.
1.4 The text of this standard refers to notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) are not requirements of the standard.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
- Status
- Published
- Publication Date
- 14-Jun-2023
- Technical Committee
- C01 - Cement
- Drafting Committee
- C01.14 - Non-hydraulic Cements
Relations
- Effective Date
- 01-Apr-2024
- Refers
ASTM C204-24 - Standard Test Methods for Fineness of Hydraulic Cement by Air-Permeability Apparatus - Effective Date
- 01-Jan-2024
- Effective Date
- 01-Oct-2023
- Effective Date
- 01-Aug-2020
- Effective Date
- 01-Apr-2020
- Effective Date
- 15-Nov-2019
- Effective Date
- 01-Jun-2019
- Refers
ASTM C204-16 - Standard Test Methods for Fineness of Hydraulic Cement by Air-Permeability Apparatus - Effective Date
- 01-Mar-2016
- Effective Date
- 01-Jul-2014
- Effective Date
- 01-Oct-2013
- Effective Date
- 01-Aug-2013
- Effective Date
- 15-Jun-2013
- Effective Date
- 01-Aug-2011
- Effective Date
- 01-Aug-2011
- Refers
ASTM C204-11 - Standard Test Methods for Fineness of Hydraulic Cement by Air-Permeability Apparatus - Effective Date
- 01-Jun-2011
Overview
ASTM C1905/C1905M-23 – Standard Specification for Cements that Require Carbonation Curing establishes the requirements for cements designed to gain strength through controlled exposure to carbon dioxide, a process known as carbonation curing. This specification applies specifically to cements used in concrete that excludes steel reinforcement. The document details criteria for chemical composition, physical properties, testing methods, marking, storage, and certification, aiming to ensure both product consistency and performance reliability. As a product of ASTM International, this standard aligns with globally recognized protocols for the development of international standards, supporting regulatory compliance and best practices in the construction and materials industries.
Key Topics
Scope: Covers all cements developed for carbonation curing, applicable to unreinforced concrete. The producer must verify that carbon dioxide is chemically bound during curing.
Unit Consistency: Permits use of either SI or inch-pound units, but they must not be mixed within a single application.
Chemical and Physical Requirements:
- Minimum of 8.0% chemically bound carbon dioxide (by mass) as verified per prescribed test methods.
- Sulfur trioxide (SO₃) content must not exceed 3.0%.
- Compressive strength: At least 28 MPa (4000 psi), measured under specified carbonation curing conditions.
Testing and Certification:
- Standardized test methods are designated for determining fineness, strength, and chemical content.
- Manufacturer’s certification of results is required upon request, with full reporting of key attributes.
Marking and Storage:
- Packaging must clearly indicate product type, manufacturer, weight, and composition.
- Cements must be stored in weather-tight conditions to prevent contamination and preserve quality.
Ordering and Inspection:
- Orders should specify the standard designation and any certification requirements.
- Purchasers reserve the right to reject shipments for nonconformance or underweight packages.
Applications
Cements for carbonation curing are used for making concrete components where steel reinforcement is not present. These cements are particularly relevant in the production of:
- Precast blocks
- Non-structural panels
- Paving stones
- Decorative elements
By leveraging carbon dioxide for strength development, these cements can contribute to more sustainable building practices through potential CO₂ utilization and reduced reliance on traditional hydraulic cements. Their use supports industries seeking lower-carbon construction materials, innovative concrete technologies, and regulatory compliance with emerging environmental standards.
Adherence to ASTM C1905/C1905M-23 ensures products meet essential strength and quality benchmarks needed for safety and durability in diverse construction settings.
Related Standards
- ASTM C114 – Test Methods for Chemical Analysis of Hydraulic Cement
- ASTM C183/C183M – Practice for Sampling and Testing of Hydraulic Cement
- ASTM C204 – Test Methods for Fineness of Hydraulic Cement by Air-Permeability Apparatus
- ASTM C219 – Terminology Relating to Hydraulic and Other Inorganic Cements
- ASTM C1910/C1910M – Test Methods for Cements that Require Carbonation Curing
- IEEE/ASTM SI 10 – Standard for Use of the International System of Units
Using ASTM C1905/C1905M-23 together with these referenced standards fosters consistent product evaluation and facilitates international acceptance of carbonation-cured cement products.
Keywords: carbonation curing cement, chemically bound carbon dioxide, ASTM C1905, sustainable construction materials, unreinforced concrete, carbon dioxide utilization, standard specification, quality control, cement testing, non-hydraulic cements.
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Frequently Asked Questions
ASTM C1905/C1905M-23 is a technical specification published by ASTM International. Its full title is "Standard Specification for Cements that Require Carbonation Curing". This standard covers: SCOPE 1.1 This specification covers cements that require controlled exposure to carbon dioxide to achieve strength, referred to as carbonation curing. These cements are for use in concrete that does not contain steel reinforcement. There are no restrictions on the constituents of the cement. The producer is required to demonstrate that carbon dioxide is chemically bound by the cement. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. Values are stated in only SI units when inch-pound units are not used in practice. 1.3 If required results obtained from another standard are not reported in the same system of units as used by this standard, it is permitted to convert those results using the conversion factors found in the SI Quick Reference Guide, Annex A in Form and Style for ASTM Standards, www.astm.org/COMMIT/Blue_Book.pdf. 1.4 The text of this standard refers to notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) are not requirements of the standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
SCOPE 1.1 This specification covers cements that require controlled exposure to carbon dioxide to achieve strength, referred to as carbonation curing. These cements are for use in concrete that does not contain steel reinforcement. There are no restrictions on the constituents of the cement. The producer is required to demonstrate that carbon dioxide is chemically bound by the cement. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. Values are stated in only SI units when inch-pound units are not used in practice. 1.3 If required results obtained from another standard are not reported in the same system of units as used by this standard, it is permitted to convert those results using the conversion factors found in the SI Quick Reference Guide, Annex A in Form and Style for ASTM Standards, www.astm.org/COMMIT/Blue_Book.pdf. 1.4 The text of this standard refers to notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) are not requirements of the standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ASTM C1905/C1905M-23 is classified under the following ICS (International Classification for Standards) categories: 91.100.10 - Cement. Gypsum. Lime. Mortar. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM C1905/C1905M-23 has the following relationships with other standards: It is inter standard links to ASTM C219-24, ASTM C204-24, ASTM C114-23, ASTM C219-20a, ASTM C219-20, ASTM C219-19a, ASTM C219-19, ASTM C204-16, ASTM C219-14, ASTM C114-13, ASTM C219-13a, ASTM C219-13, ASTM C114-11be1, ASTM C114-11b, ASTM C204-11. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM C1905/C1905M-23 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: C1905/C1905M − 23
Standard Specification for
Cements that Require Carbonation Curing
This standard is issued under the fixed designation C1905/C1905M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
1.1 This specification covers cements that require controlled 2.1 ASTM Standards:
exposure to carbon dioxide to achieve strength, referred to as C114 Test Methods for Chemical Analysis of Hydraulic
Cement
carbonation curing. These cements are for use in concrete that
does not contain steel reinforcement. There are no restrictions C183/C183M Practice for Sampling and the Amount of
Testing of Hydraulic Cement
on the constituents of the cement. The producer is required to
demonstrate that carbon dioxide is chemically bound by the C204 Test Methods for Fineness of Hydraulic Cement by
Air-Permeability Apparatus
cement.
C219 Terminology Relating to Hydraulic and Other Inor-
1.2 The values stated in either SI units or inch-pound units
ganic Cements
are to be regarded separately as standard. The values stated in
C1910/C1910M Test Methods for Cements that Require
each system are not necessarily exact equivalents; therefore, to
Carbonation Curing
ensure conformance with the standard, each system shall be
2.2 IEEE/ASTM:
used independently of the other, and values from the two
SI 10 Standard for Use of the International System of Units
systems shall not be combined. Values are stated in only SI
(SI): the Modern Metric System
units when inch-pound units are not used in practice.
2.3 The standards referenced in this specification that are
1.3 If required results obtained from another standard are
intended for use with hydraulic cement are applicable for
not reported in the same system of units as used by this
testing and specifying materials covered by this standard as
standard, it is permitted to convert those results using the
modified herein.
conversion factors found in the SI Quick Reference Guide,
Annex A in Form and Style for ASTM Standards,
3. Terminology
www.astm.org/COMMIT/Blue_Book.pdf.
3.1 Definitions:
1.4 The text of this standard refers to notes and footnotes
3.1.1 Terms used in this specification are defined in Termi-
that provide explanatory material. These notes and footnotes
nology C219.
(excluding those in tables and figures) are not requirements of
3.2 Definitions of Terms Specific to This Standard:
the standard.
3.2.1 curing, carbonation, n—action taken to maintain
1.5 This standard does not purport to address all of the
moisture, temperature, and carbon dioxide conditions in a
safety concerns, if any, associated with its use. It is the
freshly-placed cement mixture so the potential properties of the
responsibility of the user of this standard to establish appro-
mixture that require carbonation reactions may develop.
priate safety, health, and environmental practices and deter-
3.2.1.1 Discussion—Carbonation curing requires a confined
mine the applicability of regulatory limitations prior to use.
chamber and control of temperature and moisture conditions as
1.6 This international standard was developed in accor-
well as carbon dioxide concentration in the chamber.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
4. Ordering Information
Development of International Standards, Guides and Recom-
4.1 Orders for cement meeting the requirements of this
mendations issued by the World Trade Organization Technical
specification shall include:
Barriers to Trade (TBT) Committee.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
This specification is under the jurisdiction of ASTM Committee C01 on contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Cement and is the direct responsibility of Subcommittee C01.14 on Non-hydraulic Standards volume information, refer to the standard’s Document Summary page on
Cements. the ASTM website.
Current edition approved June 15, 2023. Published July 2023. DOI: 10.1520/ Available from Institute of Electrical and Electronics Engineers, Inc. (IEEE),
C1905_C1905M-23. 445 Hoes Ln., Piscataway, NJ 08854-4141, http://www.ieee.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C1905/C1905M − 23
TABLE 2 Standard Physical Requirements
4.1.1 The specification designation, Specification C1905/
C1905M, and date; and Physical Requirement Applicable Test Method Test Limit
Fineness C204 Report only
4.1.2 Manufacturer’s certification, if required.
Compressive strength, C1910/C1910M 28 MPa [4000 psi]
min, MPa
5. Chemical Composition
5.1 Cement meeting this specification shall conform to the
discretion of the manufacturer and are permitted to be changed
respective standard chemical requirements shown in Table 1.
upon agreement between the purchaser and supplier. Sampling
In addition, analy
...




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