ASTM C1604/C1604M − 05 Reapproved 2012 Standard Test Method for Obtaining and Testing Drilled Cores of Shotcrete

ASTM C1604/C1604M − 05 Reapproved 2012 Standard Test Method for Obtaining and Testing Drilled Cores of Shotcrete

Scope

1.1 This test method covers obtaining, preparing, and testing cores drilled from shotcrete for length, compressive

strength, or splitting tensile strength determinations.

1.2 The values stated in either inch-pound units or SI units shall be regarded separately as standard. SI units are

shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system must

be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.

1.3 The text of this standard references notes and footnotes that provide explanatory material. These notes and

footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.

ASTM C1604/C1604M − 05 Reapproved 2012 Standard Test Method for Obtaining and Testing Drilled Cores of

Shotcrete

Significance and Use

4.1 This test method provides standardized procedures for obtaining cored specimens to determine the

compressive strength and splitting tensile strength of shotcrete during pre-construction, during construction,

and from older shotcrete structures.

4.2 Generally, test specimens are obtained in situ when doubt exists about the in-place shotcrete quality due

either to low strength test results during construction or signs of distress in the structure. Other uses of this

method are to provide specimens for acceptance testing, construction control and to assess the condition, quality

and uniformity of the shotcrete in accordance with Practice C823 (see Note 1).