AASHTO T 119M-T 119-13-ASTM C143-C143M-12

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Standard Method of Test for

Slump of Hydraulic

Cement Concrete

AASHTO Designation: T 119M/T 119-13

ASTM Designation: C143/C143M-12

American Association of State Highway and Transportation Officials

444 North Capitol Street N.W., Suite 249

Washington, D.C. 20001

TS-3b T 119M/T 119-1 AASHTO

Standard Method of Test for

Slump of Hydraulic Cement Concrete

AASHTO Designation: T 119M/T 119-13

ASTM Designation: C143/C143M-12

1. SCOPE

1.1. This test method covers determination of slump of concrete, both in the laboratory and in the field.

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

Within the text, the inch-pound units are shown in brackets. The values stated in each system are

not exact equivalents; therefore, each system shall be used independently of the other. Combining

values from the two systems may result in nonconformance with the standard.

1.3. The text of the standard reference notes and footnotes provide explanatory material. These notes

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

standard.

1.4. This standard does not purport to address all of the safety concerns 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.

Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to

skin and tissue upon prolonged exposure.

2. REFERENCED DOCUMENTS

2.1. AASHTO Standards:

 R 60, Sampling Freshly Mixed Concrete

 T 23, Making and Curing Concrete Test Specimens in the Field

 T 121M/T 121, Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete

 T 152, Air Content of Freshly Mixed Concrete by the Pressure Method

 T 196M/T 196, Air Content of Freshly Mixed Concrete by the Volumetric Method

2.2. ASTM Standards:

 C150/C150M, Standard Specification for Portland Cement

 C670, Standard Practice for Preparing Precision and Bias Statements for Test Methods for

Construction Materials

3. SUMMARY OF TEST METHOD

3.1. A sample of freshly mixed concrete is placed and compacted by rodding in a mold shaped as the

frustum of a cone. The mold is raised and the concrete allowed to subside. The vertical distance

between the original and the displaced position of the center of the top surface of the concrete is

measured and reported as the slump of the concrete.

TS-3b T 119M/T 119-2 AASHTO

4. SIGNIFICANCE AND USE

4.1. This test method is intended to provide the user with a procedure to determine the slump of plastic

hydraulic cement concretes.

Note 1—This test method was originally developed to provide a technique to monitor the

consistency of unhardened concrete. Under laboratory conditions, with strict control of all

concrete materials, the slump is generally found to increase proportionally with the water content

of a given concrete mixture and thus to be inversely related to concrete strength. Under field

conditions, however, such a strength relationship is not clearly and consistently shown. Care

should therefore be taken in relating slump results obtained under field conditions to strength.

4.2. This test method is considered applicable to plastic concrete having coarse aggregate up to

37.5 mm [1.5 in.]. If the coarse aggregate is larger than 37.5 mm [1.5 in.] in size, the test method

is applicable when it is performed on the fraction of concrete passing a 37.5-mm [1.5-in.] sieve,

with the larger aggregate being removed in accordance with the section titled “Additional

Procedures for Large Maximum Size Aggregate Concrete” in R 60.

4.3. This test method is not considered applicable to nonplastic and noncohesive concrete.

Note 2—Concretes having slumps less than 15 mm [0.5 in.] may not be adequately plastic and

concretes having slumps greater than about 230 mm [9 in.] may not be adequately cohesive for

this test to have significance. Caution should be exercised in interpreting such results.

5. APPARATUS

5.1. Mold—The test specimen shall be formed in a mold made of metal not readily attacked by the

cement paste. The metal shall not be thinner than 1.5 mm [0.060 in.] and, if formed by the

spinning process, there shall be no point on the mold at which the thickness is less than 1.15 mm

[0.045 in.]. The mold shall be in the form of the lateral surface of the frustum of a cone with the

base 203 mm [8 in.] in diameter, the top 102 mm [4 in.] in diameter, and the height 305 mm

[12 in.]. Individual diameters and heights shall be within ±3.2 mm [0.125 in.] of the prescribed

dimensions. The base and the top shall be open and parallel to each other and at right angles to the

axis of the cone. The mold shall be provided with foot pieces and handles similar to those shown

in Figure 1. The mold shall be constructed without a seam. The interior of the mold shall be

relatively smooth and free from projections. A mold that clamps to a nonabsorbent base plate is

acceptable instead of the one illustrated, provided the clamping arrangement is such that it can be

fully released without movement of the mold and the base is large enough to contain all of the

slumped concrete in an acceptable test.

5.1.1. Check and record conformance to the mold’s specified dimensions when it is purchased or first

placed in service and at least annually thereafter.

5.1.2. Mold with Alternative Materials:

5.1.2.1. Molds other than metal are permitted if the following requirements are met: The mold shall meet

the shape, height, and internal dimensional requirements of Section 5.1. The mold shall be

sufficiently rigid to maintain the specified dimensions and tolerances during use, resistant to

impact forces, and shall be nonabsorbent. The mold shall be demonstrated to provide test results

comparable to those obtained when using a metal mold meeting the requirements of Section 5.1.

Comparability shall be demonstrated on behalf of the manufacturer by an independent testing

laboratory. Test for comparability shall consist of not less than 10 consecutive pairs of

comparisons performed at each of three different slumps ranging from 50 to 200 mm [2 to 8 in.].

No individual test results shall vary by more than 15 mm [0.50 in.] from that obtained using the

metal mold. The average test results of each slump range obtained using the mold constructed of

alternative material shall not vary by more than 6 mm [0.25 in.] from the average of test results

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摘要：

This document provides the standard specification for the AASHTO T119M/T119-13 and ASTM C143/C143M-12 test methods, which are used to determine the slump of hydraulic-cement concrete in both laboratory and field conditions. The test measures the vert

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