ASTM C1622 / C1622M - 10

    Standard Specification for Cold-Weather Admixture Systems

    Active Standard ASTM C1622 / C1622M | Developed by Subcommittee: C09.23

    Book of Standards Volume: 04.02

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    This specification covers cold-weather admixture systems to be added to hydraulic-cement concrete when the temperature of the concrete immediately after placement will be low. This specification stipulates tests of the cold-weather admixture system with suitable materials specified or with materials proposed for specific work, and provides three levels of testing. The apparatus used shall be suitable for low temperature environment. The concrete, cementitious materials, aggregates, and air-entraining admixture shall be tested and shall conform to the values of chemical and performance requirements such as initial setting time, compressive strength, shrinkage, durability.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This specification covers cold-weather admixture systems to be added to hydraulic-cement concrete when the temperature of the concrete immediately after placement will be as low as -5.0 °C [23.0 °F] prior to the time of initial set.

    1.2 This specification stipulates tests of the cold-weather admixture system with suitable materials as described in 11.1-11.3 or with materials proposed for specific work (See 11.5). Unless otherwise requested by the purchaser, tests shall be made using suitable concreting materials as described in 11.1-11.3.

    Note 1—Whenever practicable, tests should be made using the concreting materials, the mixture proportions, and batching sequence proposed for the specific work (See 11.5) because the time of setting, compressive strength gain, and other properties may vary.

    1.3 This specification provides three levels of testing.

    1.3.1 Level 1During the initial approval stage, proof of compliance with the performance requirements defined in Table 1 demonstrates that the cold-weather admixture system meets the requirements of this specification. Uniformity and equivalence tests (See Section 6) shall be carried out to provide results against which later comparisons can be made.    

    1.3.2 Level 2Limited retesting is described in 5.2, 5.2.1, and 5.2.2. Proof of compliance with the requirements of Table 1 demonstrates conformity of the admixture system with the requirements of this specification.

    1.3.3 Level 3For acceptance of a lot or for measuring uniformity within or between lots, when specified by the purchaser, uniformity and equivalence tests (See Section 6) shall be used.

    1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the inch-pound units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

    1.5 The text of this standard references notes and footnotes, which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.

    1.6 The following precautionary caveat pertains to the test methods portion, Sections 11-18, of this specification. 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. WARNINGFresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.

    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    C33 Specification for Concrete Aggregates

    C39/C39M Test Method for Compressive Strength of Cylindrical Concrete Specimens

    C125 Terminology Relating to Concrete and Concrete Aggregates

    C136 Test Method for Sieve Analysis of Fine and Coarse Aggregates

    C138/C138M Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete

    C143/C143M Test Method for Slump of Hydraulic-Cement Concrete

    C150 Specification for Portland Cement

    C157/C157M Test Method for Length Change of Hardened Hydraulic-Cement Mortar and Concrete

    C183 Practice for Sampling and the Amount of Testing of Hydraulic Cement

    C192/C192M Practice for Making and Curing Concrete Test Specimens in the Laboratory

    C231 Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method

    C260 Specification for Air-Entraining Admixtures for Concrete

    C403/C403M Test Method for Time of Setting of Concrete Mixtures by Penetration Resistance

    C494/C494M Specification for Chemical Admixtures for Concrete

    C666/C666M Test Method for Resistance of Concrete to Rapid Freezing and Thawing

    C1064/C1064M Test Method for Temperature of Freshly Mixed Hydraulic-Cement Concrete

    C1231/C1231M Practice for Use of Unbonded Caps in Determination of Compressive Strength of Hardened Concrete Cylinders

    D1193 Specification for Reagent Water

    American Concrete Institute Standard

    ACI211.1 Practice for Selecting Proportions for Normal, Heavyweight, and Mass Concrete

    ICS Code

    ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)

    UNSPSC Code

    UNSPSC Code 30111500(Concrete and mortars)

    DOI: 10.1520/C1622_C1622M-10

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