ASTM C1074-10

Standard Practice for Estimating Concrete Strength by the Maturity Method

SIGNIFICANCE AND USE
This practice can be used to estimate the in-place strength of concrete to allow the start of critical construction activities such as: (1) removal of formwork and reshoring; (2) post-tensioning of tendons; (3) termination of cold weather protection; and (4) opening of roadways to traffic.
This practice can be used to estimate strength of laboratory specimens cured under non-standard temperature conditions.
The major limitations of the maturity method are: (1) the concrete must be maintained in a condition that permits cement hydration; (2) the method does not take into account the effects of early-age concrete temperature on the long-term strength; and (3) the method needs to be supplemented by other indications of the potential strength of the concrete mixture.
The accuracy of the estimated strength depends, in part, on using the appropriate maturity function for the particular concrete mixture. Annex A1 provides a procedure for determining experimentally the best parameters (datum temperature or value of Q) for the maturity functions described in Section 6.
SCOPE
1.1 This practice provides a procedure for estimating concrete strength by means of the maturity method. The maturity index is expressed either in terms of the temperature-time factor or in terms of the equivalent age at a specified temperature.
1.2 This practice requires establishing the strength-maturity relationship of the concrete mixture in the laboratory and recording the temperature history of the concrete for which strength is to be estimated.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 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 and health practices and determine the applicability of regulatory limitations prior to use. (Warning Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure. )

General Information

• Status: Historical
• Publication Date: 14-Jun-2010
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: C09 - Concrete and Concrete Aggregates
• Drafting Committee: C09.64 - Nondestructive and In-Place Testing

Relations

• Replaces: ASTM C1074-04 - Standard Practice for Estimating Concrete Strength by the Maturity Method
• Effective Date: 15-Jun-2010
• Replaced By: ASTM C1074-10a - Standard Practice for Estimating Concrete Strength by the Maturity Method
• Effective Date: 15-Dec-2010
• Referred By: ASTM C918/C918M-20 - Standard Test Method for Measuring Early-Age Compressive Strength and Projecting Later-Age Strength
• Effective Date: 15-Jun-2010
• Referred By: ASTM C125-21a - Standard Terminology Relating to Concrete and Concrete Aggregates
• Effective Date: 15-Jun-2010

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:C1074–10
Standard Practice for
Estimating Concrete Strength
1
by the Maturity Method
This standard is issued under the fixed designation C1074; 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* Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube
Specimens)
1.1 This practice provides a procedure for estimating con-
C192/C192M Practice for Making and Curing Concrete
crete strength by means of the maturity method. The maturity
Test Specimens in the Laboratory
index is expressed either in terms of the temperature-time
C403/C403M Test Method for Time of Setting of Concrete
factor or in terms of the equivalent age at a specified tempera-
Mixtures by Penetration Resistance
ture.
C511 Specification for Mixing Rooms, Moist Cabinets,
1.2 This practice requires establishing the strength-maturity
Moist Rooms, and Water Storage Tanks Used in the
relationship of the concrete mixture in the laboratory and
Testing of Hydraulic Cements and Concretes
recording the temperature history of the concrete for which
C684 Test Method for Making, Accelerated Curing, and
strength is to be estimated.
Testing Concrete Compression Test Specimens
1.3 The values stated in SI units are to be regarded as
C803/C803M Test Method for Penetration Resistance of
standard. No other units of measurement are included in this
Hardened Concrete
standard.
C873/C873M Test Method for Compressive Strength of
1.4 This standard does not purport to address all of the
Concrete Cylinders Cast in Place in Cylindrical Molds
safety concerns, if any, associated with its use. It is the
C900 Test Method for Pullout Strength of Hardened Con-
responsibility of the user of this standard to establish appro-
crete
priate safety and health practices and determine the applica-
C918/C918M Test Method for Measuring Early-Age Com-
bility of regulatory limitations prior to use. (Warning—Fresh
pressive Strength and Projecting Later-Age Strength
hydraulic cementitious mixtures are caustic and may cause
2
chemical burns to skin and tissue upon prolonged exposure. )
3. Terminology
2. Referenced Documents 3.1 Definitions of Terms Specific to This Standard:
3
3.1.1 datum temperature—thetemperaturethatissubtracted
2.1 ASTM Standards:
from the measured concrete temperature for calculating the
C39/C39M Test Method for Compressive Strength of Cy-
temperature-time factor according to Eq 1.
lindrical Concrete Specimens
3.1.2 equivalent age—the number of days or hours at a
C78 Test Method for Flexural Strength of Concrete (Using
specified temperature required to produce a maturity equal to
Simple Beam with Third-Point Loading)
the maturity achieved by a curing period at temperatures
C109/C109M Test Method for Compressive Strength of
different from the specified temperature.
3.1.3 maturity—the extent of the development of a property
of a cementitious mixture.
1
This practice is under the jurisdiction of ASTM Committee C09 on Concrete
3.1.3.1 Discussion—While the term is used usually to
andConcreteAggregatesandisthedirectresponsibilityofSubcommitteeC09.64on
Nondestructive and In-Place Testing.
describe the extent of relative strength development, it can also
Current edition approved June 15, 2010. Published July 2010. Originally
be applied to the evolution of other properties that are
approved in 1987. Last previous edition approved in 2004 as C1074–04. DOI:
dependent on the chemical reactions that occur in a cementi-
10.1520/C1074-10.
2
tious mixture. At any age, maturity depends on the curing
Section on Safety Precautions, Manual of Aggregate and Concrete Testing,
Annual Book of ASTM Standards, Vol 04.02.
history.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.1.4 maturity function—a mathematical expression that
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
uses the measured temperature history of a cementitious
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. mixture during the curing period to calculate an index that is
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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C1074–10
indicative of the maturity at the end of that period. Refer to 6. Maturity Functions
Appendix X1 for additional discussion of this term.
6.1 There are two alternative functions for computing the
3.1.5 maturity index—an indicator of maturity that is calcu-
maturity index from the measured temperat
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:C1074–04 Designation:C1074–10
Standard Practice for
Estimating Concrete Strength
1
by the Maturity Method
This standard is issued under the fixed designation C1074; 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*
1.1 This practice provides a procedure for estimating concrete strength by means of the maturity method. The maturity index
is expressed either in terms of the temperature-time factor or in terms of the equivalent age at a specified temperature.
1.2 This practice requires establishing the strength-maturity relationship of the concrete mixture in the laboratory and recording
the temperature history of the concrete for which strength is to be estimated.
1.3The values stated in SI units are to be regarded as the standard.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 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 and health practices and determine the applicability of regulatory
limitations prior to use. (Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and
2
tissue upon prolonged exposure. )
2. Referenced Documents
3
2.1 ASTM Standards:
C39/C39M Test Method for Compressive Strength of Cylindrical Concrete Specimens
C78 Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading)
C109/C109M Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube Specimens)
C192/C192M Practice for Making and Curing Concrete Test Specimens in the Laboratory
C403/C403M Test Method for Time of Setting of Concrete Mixtures by Penetration Resistance
C511 Specification for Mixing Rooms, Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the Testing of
Hydraulic Cements and Concretes
C684 Test Method for Making, Accelerated Curing, and Testing Concrete Compression Test Specimens
C803/C803M Test Method for Penetration Resistance of Hardened Concrete
C873873/C873M Test Method for Compressive Strength of Concrete Cylinders Cast in Place in Cylindrical Molds
C900 Test Method for Pullout Strength of Hardened Concrete
C918918/C918M Test Method for Measuring Early-Age Compressive Strength and Projecting Later-Age Strength
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 datum temperature—the temperature that is subtracted from the measured concrete temperature for calculating the
temperature-time factor according to Eq 1.
3.1.2 equivalent age—the number of days or hours at a specified temperature required to produce a maturity equal to the
maturity achieved by a curing period at temperatures different from the specified temperature.
3.1.3 maturity—the extent of the development of a property of a cementitious mixture.
3.1.3.1 Discussion—Whilethetermisusedusuallytodescribetheextentofrelativestrengthdevelopment,itcanalsobeapplied
to the evolution of other properties that are dependent on the chemical reactions that occur in a cementitious mixture.At any age,
maturity depends on the curing history.
3.1.4 maturity function—a mathematical expression that uses the measured temperature history of a cementitious mixture
1
This practice is under the jurisdiction of ASTM Committee C09 on Concrete and Concrete Aggregates and is the direct responsibility of Subcommittee C09.64 on
Nondestructive and In-Place Testing.
Current edition approved June 1, 2004.15, 2010. Published July 2004.2010. Originally approved in 1987. Last previous edition approved in 19982004 as
C1074–98.C1074–04. DOI: 10.1520/C1074-104.
2
Section on Safety Precautions, Manual of Aggregate and Concrete Testing, Annual Book of ASTM Standards, Vol 04.02.
3
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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