ASTM C1176/C1176M-20

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: C1176/C1176M − 13 C1176/C1176M − 20
Standard Practice for
Making Roller-Compacted Concrete in Cylinder Molds Using
a Vibrating Table
This standard is issued under the fixed designation C1176/C1176M; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This practice covers procedures for making cylindrical test specimens from concrete when the standard procedures of rodding
and internal vibration, as described in Practice C31/C31M, are not practicable. This practice is applicable to freshly mixed
concrete, prepared in the laboratory and the field, having a nominal maximum size aggregate of 50 mm [2 in.] or less. If the
nominal maximum size aggregate is larger than 50 mm [2 in.], the practice is applicable only when performed on the fraction
passing the 50-mm [2-in.] sieve with the larger aggregate being removed in accordance with Practice C172. This practice, intended
for use in testing roller-compacted concrete, may be applicable to testing other types of concrete such as cement-treated aggregate
and mixtures similar to soil-cement.
1.2 Two methods are provided for making concrete cylinders using a vibrating table:
1.2.1 Method A is a procedure for making test specimens in steel reusable molds attached to a vibrating table.
1.2.2 Method B is a procedure for making test specimens in single-use plastic molds that have been inserted into a metal sleeve
attached to a vibrating table.
1.3 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.
1.4 The text of this practice refers to notes and footnotes that provide explanatory material. These notes and footnotes (excluding
those in tables and figures) shall not be considered as requirements of this practice.
1.5 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.6 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.
This practice is under the jurisdiction of ASTM Committee C09 on Concrete and Concrete Aggregates and is the direct responsibility of Subcommittee C09.45 on
Roller-Compacted Concrete.
Current edition approved Dec. 15, 2013Oct. 1, 2020. Published February 2014October 2020. Originally approved in 1991. Last previous edition approved in 20082013
as C1176 – 08.C1176/C1176M – 13. DOI: 10.1520/C1176_C1176M-13.10.1520/C1176_C1176M-20.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C1176/C1176M − 20
2. Referenced Documents
2.1 ASTM Standards:
C31/C31M Practice for Making and Curing Concrete Test Specimens in the Field
C39/C39M Test Method for Compressive Strength of Cylindrical Concrete Specimens
C172 Practice for Sampling Freshly Mixed Concrete
C192/C192M Practice for Making and Curing Concrete Test Specimens in the Laboratory
C470/C470M Specification for Molds for Forming Concrete Test Cylinders Vertically
C496/C496M Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens
C1170/C1170M Test Method for Determining Consistency and Density of Roller-Compacted Concrete Using a Vibrating Table
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
3. Summary of Practice
3.1 This practice describes methods for making cylindrical concrete test specimens using a vibrating table. Test specimens are
made in cylindrical molds that are attached to the vibrating table under a 9-kg [20-lb] surcharge to facilitate consolidation.
4. Significance and Use
4.1 This practice is intended to be used for stiff to extremely dry concrete mixtures commonly used in roller-compacted concrete
construction. This practice is used instead of rodding or internal vibration, which cannot properly consolidate concrete of this
consistency (Note 1).
NOTE 1—Further description of this concrete consistency is given in ACI 207.5 Roller-Compacted Mass Concrete and 211.3 Guide for Selecting
Proportions for No-Slump Concrete . The consistency of roller-compacted concrete may be determined in accordance with Test Method C1170/C1170M.
5. Apparatus
5.1 Molds:
5.1.1 Type A Mold—A cylindrical mold conforming to the requirements of Specification C470/C470M for 150-mm [6-in.]
diameter by 300-mm [12-in.] high reusable molds. Molds shall be made of steel or other hard metal not readily attacked by the
cement paste. Aluminum molds shall not be used. Molds shall be equipped with permanently affixed metal slotted brackets on the
baseplate so the molds can be rigidly clamped to a vibrating table. The top rim of the mold shall be smooth, plane, and parallel
to the bottom of the mold. The bottom of the mold shall provide a watertight seal.
5.1.2 Type B Mold—A single-use plastic, cylindrical mold 150 mm [6 in.] in diameter and 300 mm [12 in.] in height. The mold
specifications shall conform to Specification C470/C470M for single-use plastic molds.
5.1.2.1 Mold Sleeve—A Type B cylindrical mold shall be inserted into a rigid cylindrical sleeve with a bottom baseplate that is
clamped to the vibrating table. The mold sleeve shall be made of steel or other hard metal that does not react with concrete
containing portland or other hydraulic cement. The sleeve shall hold firmly the plastic mold without deforming it so that it is
vertical and shall be slotted vertically with adjustable clamps for tightening around the mold. The sleeve shall be hinged so that
it can be opened to remove the mold (Fig. 1) and shall also have permanently affixed slotted metal brackets so the sleeve may be
rigidly clamped to the vibrating table. The mold sleeve shall have a minimum wall thickness of 3 mm [ ⁄8 in.], and a minimum
1 1 1
baseplate thickness of 6 mm [ ⁄4 in.]. The inside diameter of the mold sleeve shall be 3 6 1.5 mm [ ⁄8 6 ⁄16 in.] larger than the
1 1
outside diameter of the Type B mold and have a height 6 to 13 mm [ ⁄4 to ⁄2 in.] less than the height of the Type B mold.
5.2 Vebe Table—A vibrating table with a 20-mm [ ⁄4-in.] thick steel deck with dimensions of approximately 380 mm [15 in.] in
length, 250 mm [10 in.] in width, and 300 mm [12 in.] in height. The vibrating table shall be constructed in such a manner as to
prevent flexing of the table during operation. The table deck shall be activated by an electromechanical vibrator. The total mass
of the vibrator and table shall be approximately 90 kg [200 lb]. The table shall be level and clamped to a concrete floor or base
slab that has sufficient mass to prevent displacement of the apparatus during specimen preparation (Note 2).
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
ACI Manual of Concrete Practice, Part 1, Materials and General Properties of Concrete, 2005, American Concrete Institute (ACI), P.O. Box 9094, Farmington Hills,
MI 48333.
C1176/C1176M − 20
FIG. 1 Vibrating Table—Cylinder Preparation (Type B Mold)
NOTE 2—The recommended vibrating table for these procedures is the Vebe table. Testing to date has been performed using this apparatus. An alternative
vibrating table may be substituted for the Vebe apparatus provided it meets the specifications for the sinusoidal vibration given in 7.1.
5.3 Swivel Arm and Guide Sleeve—A metal guide sleeve with a clamp assembly or other suitable holding device mounted on a
swivel arm. The swivel arm and guide sleeve must be capable of holding a metal shaft attached to a 9-kg [20-lb] cylindrical mass
in a position perpendicular to the vibrating surface and allowing the shaft to slide freely when the clamp is released. The swivel
arm must be capable of maintaining the guide sleeve in a locked position directly over the center of the specimens to be vibrated.
The swivel arm shall also be capable of being rotated away from the center of the table (Note 3).
NOTE 3—The Vebe vibrating table comes equipped with the swivel arm and guide sleeve.
C1176/C1176M − 20
5 1
5.4 Surcharge—A cylindrical steel mass with a metal shaft at least 460 mm [18 in.] in length and 16 6 2 mm [ ⁄8 6 ⁄16 in.] in
diameter attached perpendicularly to and embedded in the center of the mass. The shaft shall slide through the guide sleeve without
3 1
binding. The surcharge shall have a diameter of 145 6 3 mm [5 ⁄4 6 ⁄8 in.]. The surcharge assembly shall have a mass of
9.0 6 0.25 kg [20 6 0.5 lb] including the mass of the metal shaft (Fig. 1). If the surcharge is to be hand held, the length of the
shaft may be reduced to about 300
...