Standard Practice for Preparing and Testing Specimens from Shotcrete Test Panels

SCOPE
1.1 This practice covers procedures for preparing test panels of dry-mix or wet-mix shotcrete and for testing specimens sawed or cored from the panels.
1.2 The values stated in inch-pound units are to be regarded as the standard.
1.3 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.

General Information

Status
Historical
Publication Date
09-Jan-2003
Drafting Committee
Current Stage
Ref Project

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ASTM C1140-03 - Standard Practice for Preparing and Testing Specimens from Shotcrete Test Panels
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 1140 – 03
Standard Practice for
Preparing and Testing Specimens from Shotcrete Test
1
Panels
This standard is issued under the fixed designation C 1140; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope C 995 Test Method for Time of Flow of Fiber-Reinforced
2
Concrete Through Inverted Slump Cone
1.1 This practice covers procedures for preparing test panels
C 1018 Test Method for Flexural Toughness and First-
of dry-mix or wet-mix shotcrete and for testing specimens
Crack Strength of Fiber-Reinforced Concrete (Using Beam
sawed or cored from the panels.
2
with Third-Point Loading)
1.2 The values stated in inch-pound units are to be regarded
C 1399 Test Method for Obtaining Average Residual-
as the standard.
2
Strength of Fiber-Reinforced Concrete
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3. Summary of Practice
responsibility of the user of this standard to establish appro-
3.1 Test panels of shotcrete are fabricated using the person-
priate safety and health practices and determine the applica-
nel, materials, equipment, and shooting positions under inves-
bility of regulatory limitations prior to use.
tigation. Specimens are core drilled or sawed from these panels
2. Referenced Documents for evaluation.
2.1 ASTM Standards:
4. Significance and Use
C 42/C 42M Test Method for Obtaining and Testing Drilled
2 4.1 Specimens obtained in accordance with the procedure
Cores and Sawed Beams of Concrete
section of this practice may be used for preconstruction studies
C 78 Test Method for Flexural Strength of Concrete (Using
2
of shotcrete mixtures, to qualify nozzlemen and equipment, or
Simple Beam with Third-Point Loading)
for quality control, or compressive or flexural strength testing,
C 138/C 138M Test Method for Density (Unit Weight),
2
during the progress of a project.
Yield, and Air Content (Gravimetric) of Concrete
C 143/C 143M Test Method for Slump of Hydraulic Ce-
5. Test Panels
2
ment Concrete
5.1 Forms for Panels:
C 171 Specification for Sheet Materials For Curing Con-
2 5.1.1 The form for receiving the shotcrete shall be either
crete
wood or steel construction and sufficiently rigid to prevent
C 231 Test Method for Air Content of Freshly Mixed
2 dislodging of the shotcrete through vibration or deformation.
Concrete by the Pressure Method
The form shall have a minimum width and length of 24 in. (610
C 457 Test Method for Microscopical Determination of
1
2 mm) and a minimum depth of 3 ⁄2 in. (89 mm) with either
Parameters of the Air-Void System in Hardened Concrete
square or sloped sides. Larger panels may be desirable for
C 511 Specification for Moist Cabinets, Moist Rooms, and
qualifying nozzlemen, equipment, or mixture design.
Water Storage Tanks Used in the Testing of Hydraulic
5.1.1.1 Wood Forms—Wood forms shall have a back made
2
Cements and Concretes
3
from plywood at least ⁄4 in. (19 mm) thick. Side pieces shall be
C 513 Test Method for Obtaining and Testing Specimens of
1
made of lumber with a minimum thickness of 1 ⁄2 in. (38 mm).
Hardened Lightweight Insulating Concrete for Compres-
2 5.1.1.2 Steel Forms—Steel forms shall be made using
sive Strength
3
material having a minimum thickness of ⁄16 in. (5 mm).
C 642 Test Method for Density, Absorption, and Voids in
2
Hardened Concrete
6. Materials
6.1 Dry-Mix Process—The test mixture shall be of the same
1
materials and proportions being used or proposed for use in the
This practice is under the jurisdiction of ASTM Committee C09 on Concrete
and Concrete Aggregates and is the direct responsibility of Subcommittee
structure.
C09.46 on Shotcrete.
6.2 Wet-Mix Process—The test mixture shall be of the
Current edition approved Jan. 10, 2003. Published April 2003. Originally
specified slump and have the specified air content and unit
approved in 1989. Last previous edition approved in 1998 as C 1140-98.
2
Annual Book of ASTM Standards, Vol 04.02. weight, or, when fibers are used, the specified time of flow, air
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
C 1140–03
content, and unit weight as the mixture being used or proposed parallel and smooth surfaces. Cores shall be drilled and tested
for use in the structure. Determine the air content by Test for compressive
...

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