ASTM C330-05 - 15.12.2005
 
1. Scope

1.1 This specification covers lightweight aggregates intended for use in structural concrete in which prime considerations are reducing the density while maintaining the compressive strength of the concrete. Procedures covered in this specification are not intended for job control of concrete.

1.2 The values stated in SI units are to be regarded as the standard. The values shown in parentheses are for information purposes only.

1.2.1 With regard to other units of measure, the values stated in inch-pound units are to be regarded as standard.

1.3 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.

Note 1—This specification is regarded as adequate to ensure satisfactory lightweight aggregates for most concrete. It is recognized that it may be either more or less restrictive than needed for some conditions and for special purposes, such as fire resistance, fill, and concrete constructions, the use of which is based on load tests rather than conventional design procedures.

 
2. Referenced Documents

C33-07

Standard Specification for Concrete Aggregates

C39/C39M-26

Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens

C29/C29M-23

Standard Test Method for Bulk Density (“Unit Weight”) and Voids in Aggregate

C151-05

Standard Test Method for Autoclave Expansion of Hydraulic Cement

C142-97

Standard Test Method for Clay Lumps and Friable Particles in Aggregates

C136-06

Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates

C114-24

Standard Test Methods for Chemical Analysis of Hydraulic Cement

C40-04

Standard Test Method for Organic Impurities in Fine Aggregates for Concrete

C496-C496M-17

Standard Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens (Withdrawn 2026)

C192/C192M-26b

Standard Practice for Making and Curing Concrete Test Specimens in the Laboratory (Includes all amendments and changes 10/13/2026).

C157/C157M-24e1

Standard Test Method for Length Change of Hardened Hydraulic-Cement Mortar and Concrete (Includes all amendments and changes 10/14/2024).

ACI 211.2

Standard Practices for Selecting Proportions for Structural Lightweight Concrete

D75-03

Standard Practice for Sampling Aggregates

C702-98

Standard Practice for Reducing Samples of Aggregate to Testing Size

C666/C666M-26

Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing

C641-23

Standard Test Method for Iron Staining Materials in Lightweight Concrete Aggregates

C567-05

Standard Test Method for Determining Density of Structural Lightweight Concrete

C31/C31M-26b

Standard Practice for Making and Curing Concrete Test Specimens in the Field (Includes all amendments and changes 8/27/2026).