ASTM C1708 / C1708M - 19
Standard Test Methods for Self-leveling Mortars Containing Hydraulic Cements
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Significance and Use
4.1 The test methods in this standard are used to evaluate freshly mixed properties such as the initial flow, flow retention, and healing time as well as hardened properties such as compressive strength, setting time, and flexural strength, of self-leveling mortars.
4.2 Tests are conducted under standardized conditions for comparative purposes and results are not intended to be representative of performance under field conditions.
1. Scope
1.1 These test methods are appropriate to evaluate the performance of self-leveling mortars containing hydraulic cements that are used to improve the levelness, smoothness, and flatness of existing floors. These materials may be used as an underlayment to receive floor finishes, or as an overlayment to serve as the wear surface. The self-leveling mortars covered by these test methods consist of proprietary blends of hydraulic cements, along with fine aggregate, polymers, fillers, and other additives.
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.
1.3 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.)2
1.4 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.
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
C109/C109M Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube Specimens)
C125 Terminology Relating to Concrete and Concrete Aggregates
C157/C157M Test Method for Length Change of Hardened Hydraulic-Cement Mortar and Concrete
C191 Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle
C305 Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency
C348 Test Method for Flexural Strength of Hydraulic-Cement Mortars
C490/C490M Practice for Use of Apparatus for the Determination of Length Change of Hardened Cement Paste, Mortar, and Concrete
C511 Specification for Mixing Rooms, Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the Testing of Hydraulic Cements and Concretes
C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
C778 Specification for Standard Sand
C928/C928M Specification for Packaged, Dry, Rapid-Hardening Cementitious Materials for Concrete Repairs
C1005 Specification for Reference Masses and Devices for Determining Mass and Volume for Use in the Physical Testing of Hydraulic Cements
C1107/C1107M Specification for Packaged Dry, Hydraulic-Cement Grout (Nonshrink)
C1803 Guide for Abrasion Resistance of Mortar Surfaces Using a Rotary Platform Abraser
D1200 Test Method for Viscosity by Ford Viscosity Cup
D5125 Test Method for Viscosity of Paints and Related Materials by ISO Flow Cups
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ICS Code
ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)
UNSPSC Code
UNSPSC Code 30111504(Mortars)
Referencing This Standard
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DOI: 10.1520/C1708_C1708M-19
Citation Format
ASTM C1708 / C1708M-19, Standard Test Methods for Self-leveling Mortars Containing Hydraulic Cements, ASTM International, West Conshohocken, PA, 2019, www.astm.org
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