ASTM D6103-97 - 10.3.1997
 
1. Scope

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.) sieve.

1.2 The values stated in SI units are to be regarded as standard. The inch-pound equivalents are given for information only.

1.3 CLSM is also known as flowable fill, controlled density fill, soil-cement grout, unshrinkable fill, K-Krete, and other similar names.

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.

 
2. Referenced Documents

D6026-21

Standard Practice for Using Significant Digits and Data Records in Geotechnical Data

C143/C143M-26b

Standard Test Method for Slump of Concrete (Includes all amendments and changes 8/6/2026).

D6024-07

Standard Test Method for Ball Drop on Controlled Low Strength Material (CLSM) to Determine Suitability for Load Application

D6023-16

Standard Test Method for Density (Unit Weight), Yield, Cement Content, and Air Content (Gravimetric) of Controlled Low-Strength Material (CLSM) (Withdrawn 2025)

D5971-07

Standard Practice for Sampling Freshly Mixed Controlled Low-Strength Material

D4832-16

Standard Test Method for Preparation and Testing of Controlled Low Strength Material (CLSM) Test Cylinders

D3740-26

Standard Practice for Minimum Requirements for Agencies Engaged in Testing of Soil and Rock as Used in Engineering Design and Construction

C172-08

Standard Practice for Sampling Freshly Mixed Concrete

D653-26a

Standard Terminology Relating to Soil, Rock, and Contained Fluids (Includes all amendments and changes 6/15/2026).