1.1 This test method covers the procedure for determination of the flow consistency of fresh Controlled Low Strength Material (CLSM). This test method applies to flowable CLSM with a maximum particle size of 19.0 mm [3⁄4 in.] or less, or to the portion of CLSM that passes a 19.0 mm [3⁄4 in.] sieve.
1.2 The CLSM used to make the molded specimens shall be sampled after all on-site adjustments have been made to the mixture proportions, including the addition of mix water and any admixtures.
1.3 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026 unless superseded by this test method.
1.3.1 The method used to specify how data are collected, calculated, or recorded in this standard is not directly related to the accuracy to which the data can be applied in design or other uses, or both. How one applies the results obtained using this standard is beyond its scope.
1.4 Units—The values stated in either SI units or inchpound units are to be regarded separately as standard. 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 nonconformance with the standard.
1.4.1 The gravitational system of inch-pound units is used when dealing with inch-pound units. In this system, the pound (lbf) represents a unit of force (weight) while the unit for mass is slugs. The rationalized slug unit is not given, unless dynamic (F=ma) calculations are involved.
1.4.2 It is common practice in the engineering/construction profession to concurrently use pounds to represent both a unit of mass (lbm) and of force (lbf). This implicitly combines two separate systems of units: that is, the absolute system and the gravitational system. It is scientifically undesirable to combine two separate sets of inch-pound units within a single standard. As stated, this standard includes the gravitational system of inch-pound units and does not use/present the slug unit for mass. However, the use of balances or scales recording pounds of mass (lbm) or recording in lbm/ft3 shall not be regarded as nonconformance with this standard.
1.5 CLSM is also known as flowable fill, controlled density fill, soil-cement slurry, soil-cement grout, unshrinkable fill, K-Krete, and other similar names.
1.6 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.
1.7 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.
1.8 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 D6103/D6103M-17e1 Referenced Document
ASTM C125 Standard Terminology Relating to Concrete and Concrete Aggregates*, 2021-10-01 Update
ASTM C143/C143M Standard Test Method for Slump of Hydraulic-Cement Concrete*, 2020-06-01 Update
ASTM C172/C172M Standard Practice for Sampling Freshly Mixed Concrete*, 2024-04-21 Update
ASTM D3740 Standard Practice for Minimum Requirements for Agencies Engaged in the Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction
ASTM D4832 Standard Test Method for Preparation and Testing of Controlled Low Strength Material (CLSM) Test Cylinders
ASTM D5971/D5971M Standard Practice for Sampling Freshly Mixed Controlled Low-Strength Material
ASTM D6023 Standard Test Method for Unit Weight, Yield, Cement Content, and Air Content (Gravimetric) of Controlled Low Strength Material (CLSM)
ASTM D6024/D6024M Standard Test Method for Ball Drop on Controlled Low Strength Material (CLSM) to Determine Suitability for Load Application
ASTM D6026 Standard Practice for Using Significant Digits in Geotechnical Data
ASTM D653 Standard Terminology Relating to Soil, Rock, and Contained Fluids
ASTM D6103/D6103M-17e1 history
2017ASTM D6103/D6103M-17e1 Standard Test Method for Flow Consistency of Controlled Low Strength Material (CLSM)
2017ASTM D6103/D6103M-17 Standard Test Method for Flow Consistency of Controlled Low Strength Material (CLSM)
2004ASTM D6103-04 Standard Test Method for Flow Consistency of Controlled Low Strength Material (CLSM)
1997ASTM D6103-97 Standard Test Method for Flow Consistency of Controlled Low Strength Material (CLSM)