ASTM C1670/C1670M-17 - 1.7.2017
 
1. Scope

1.1 This specification covers the minimum product requirements for adhered manufactured stone masonry veneer units applied as an adhered veneer to exterior and interior walls and structures suitable to receive units.

1.2 The property requirements of this specification apply at the time of delivery. This standard does not address the physical evaluation of installed units removed from service.

1.3 The units described by this specification are manufactured from a mixture of cement, normal or lightweight aggregates (or a combination of both), water, admixtures, other cementitious materials and other components which are wet-cast into shapes simulating the appearance of natural stone and other textures.

1.4 The values stated in either SI units or inch-pound 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 non-conformance with the standard.

1.5 The text of this specification references notes and footnotes which provide explanatory material. These notes and footnotes shall not be considered as requirements of the standard.

1.6 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 of units.

Note 1: When particular features are desired such as surface textures or color these features should be specified separately. Suppliers should be consulted as to the availability of units having the desired features.

1.7 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

C1232-26a

Standard Terminology for Masonry (Includes all amendments and changes 8/20/2026).

C1157/C1157M-25

Standard Performance Specification for Hydraulic Cement

C260/C260M-24

Standard Specification for Air-Entraining Admixtures for Concrete

C330/C330M-23

Standard Specification for Lightweight Aggregates for Structural Concrete

C331/C331M-23

Standard Specification for Lightweight Aggregates for Concrete Masonry Units

C482-20(2026)

Standard Test Method for Bond Strength of Ceramic Tile to Portland Cement Paste

C494/C494M-24

Standard Specification for Chemical Admixtures for Concrete

C511-21

Standard Specification for Mixing Rooms, Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the Testing of Hydraulic Cements and Concretes

C595/C595M-26

Standard Specification for Blended Hydraulic Cements

C618-26

Standard Specification for Coal Ash and Raw or Calcined Natural Pozzolan for Use in Concrete

C666/C666M-26

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

C140/C140M-26a

Standard Test Methods for Sampling and Testing Concrete Masonry Units and Related Units (Includes all amendments and changes 7/17/2026).

C150/C150M-24

Standard Specification for Portland Cement

C157/C157M-24e1

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

C31/C31M-26b

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

C33/C33M-24a

Standard Specification for Concrete Aggregates (Includes all amendments and changes 11/18/2024).

C39/C39M-26

Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens

C207-24

Standard Specification for Hydrated Lime for Masonry Purposes

C979/C979M-24

Standard Specification for Pigments for Integrally Colored Concrete

C989/C989M-26

Standard Specification for Slag Cement for Use in Concrete and Mortars

C1116/C1116M-23

Standard Specification for Fiber-Reinforced Concrete

C1240-20

Standard Specification for Silica Fume Used in Cementitious Mixtures