ASTM C1398-07
Standard Test Method for The Laboratory Determination of the Time of Setting of Hydraulic-Cement Mortars Containing Additives for Shotcrete by the Use of Gillmore Needles
- Standard No.
- ASTM C1398-07
- Release Date
- 2007
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- 2010-06
- Latest
- ASTM C1398-07
- Scope
The performance of an admixture for shotcrete in the field varies with the composition of the hydraulic cement and sand combination. Since this test method involves the determination of time of setting of a particular combination of hydraulic cement, sand and an admixture, it therefore provides information on the suitability for use of that particular combination in the field.
The time of setting of the combination established in the laboratory does not necessarily indicate the time of setting this combination will produce in actual shotcreting in the field.
This method is used to determine the effect on time of setting of mortars containing admixtures as compared to a control mortar.
The test method is used for comparison in laboratory pre–evaluation studies to demonstrate the effect of shotcrete admixtures in mortar compared with plain mortar and can be used to demonstrate or compare the performance of shotcrete admixtures which produce rapid setting or rapid rheological stiffening of shotcrete.
The test method is used to evaluate the relative performance of more than one shotcrete admixture for comparison of performance.
The test method is used to determine or verify that no adverse effects on setting time may be experienced with the use of admixtures that are not intended to accelerate or are used to produce stiffening of shotcrete mixtures.
Although specific environmental conditions are indicated, the testing environment can be varied to simulate the performance of admixtures in mortars at different temperatures. Such variations are reported as indicated in Section 11.
1.1 This is a laboratory test method that covers the determination of the time of setting of hydraulic-cement mortars containing additives for shotcrete for comparison with control mixes containing no additives or to compare the performance of shotcrete mixtures which contain additives that produce rapid setting or rapid stiffening of shotcrete.
1.2 The values stated in SI units (see IEEE/ASTM SI 10) are the standard.
This standard may involve hazardous materials, operations, and equipment. 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.
ASTM C1398-07 Referenced Document
- ASTM C1005 Standard Specification for Reference Masses and Devices for Determining Mass and Volume for Use in Physical Testing of Hydraulic Cements
- ASTM C1141 Standard Specification for Admixtures for Shotcrete
- ASTM C125 Standard Terminology Relating to Concrete and Concrete Aggregates
- ASTM C150 Standard Specification for Portland Cement
- ASTM C185 Standard Test Method for Air Content of Hydraulic Cement Mortar
- ASTM C266 Standard Test Method for Time of Setting of Hydraulic-Cement Paste by Gillmore Needles
- ASTM C305 Standard Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency
- ASTM C490 Standard Practice for Use of Apparatus for the Determination of Length Change of Hardened Cement Paste, Mortar, and Concrete
- ASTM C778 Standard Specification for Standard Sand
- ASTM D1193 Standard Specification for Reagent Water
- IEEE/ASTM SI 10 American National Standard for Metric Practice
ASTM C1398-07 history
- 2007 ASTM C1398-07 Standard Test Method for The Laboratory Determination of the Time of Setting of Hydraulic-Cement Mortars Containing Additives for Shotcrete by the Use of Gillmore Needles
- 2004 ASTM C1398-98(2004) Standard Test Method for the Laboratory Determination of the Time of Setting of Hydraulic-Cement Mortars Containing Additives for Shotcrete by the Use of Gillmore Needles
- 1998 ASTM C1398-98e1 Standard Test Method for Laboratory Determination of the Time Setting of Hydraulic-Cement Mortars Containing Additives for Shotcrete by the Use of Gillmore Needles
