ASTM C1019-00b
(Test Method)Standard Test Method for Sampling and Testing Grout
Standard Test Method for Sampling and Testing Grout
SCOPE
1.1 This test method covers procedures for both field and laboratory sampling and compression testing of grout used in masonry construction.
Note 1—The testing agency performing this test method should be evaluated in accordance with Practice C1093.
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 problems, 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.
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Designation: C 1019 – 00b
Standard Test Method for
Sampling and Testing Grout
This standard is issued under the fixed designation C 1019; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope * grout specimens in order to provide compressive strength test
results more nearly indicative of the grout strength in the wall.
1.1 This test method covers procedures for both field and
In this test method, molds are made from masonry units having
laboratory sampling and compression testing of grout used in
the same absorption and moisture content characteristics as
masonry construction.
those being used in the construction.
NOTE 1—The testing agency performing this test method should be
3.2 This test method is used to either help select grout
evaluated in accordance with Practice C 1093.
proportions by comparing test values or as a quality control test
1.2 The values stated in inch-pound units are to be regarded
for uniformity of grout preparation during construction.
as the standard.
3.3 The physical exposure condition and curing of the grout
1.3 This standard does not purport to address all of the
are not exactly reproduced, but this test method does subject
safety problems, if any, associated with its use. It is the
the grout specimens to absorption conditions similar to those
responsibility of the user of this standard to establish appro-
experienced by grout in the wall.
priate safety and health practices and determine the applica-
NOTE 2—Test results of grout specimens taken from a wall should not
bility of regulatory limitations prior to use.
be compared to test results obtained with this test method.
2. Referenced Documents
4. Apparatus
2.1 ASTM Standards:
4.1 Maximum-Minimum Thermometer.
C 39 Test Method for Compressive Strength of Cylindrical
4.2 Straightedge, a steel straightedge not less than 6 in.
Concrete Specimens
(152.4 mm) long and not less than ⁄16 in. (1.6 mm) in
C 143 Test Method for Slump of Hydraulic Cement Con-
thickness.
crete
4.3 Tamping Rod, a nonabsorbent rod, either round or
C 511 Specification for Moist Cabinets, Moist Rooms, and
square in cross section nominally ⁄8 in. (15.9 mm) in dimen-
Water Storage Tanks Used in the Testing of Hydraulic
sion with ends rounded to hemispherical tips of the same
Cements and Concretes
diameter. The rod shall be a minimum length of 12 in. (304.8
C 617 Practice for Capping Cylindrical Concrete Speci-
mm).
mens
4.4 Nonabsorbent Blocks, nonabsorbent, rigid squares with
C 1064 Test Method for Temperature of Freshly Mixed
side dimensions equal to one half the desired grout specimen
Portland Cement Concrete
height, within a tolerance of 5 %, and of sufficient quantity or
C 1093 Practice for Accreditation of Testing Agencies for
thickness to yield the desired grout specimen height, as shown
Unit Masonry
in Fig. 1 and Fig. 2.
3. Significance and Use
NOTE 3—Nonabsorbent blocks may be of plastic, wood, or other
nonabsorbent material. Certain species of wood contain sugars which
3.1 Grout used in masonry is a fluid mixture of cementitious
cause retardation of cement. In order to prevent this from occurring, new
materials and aggregate with a high water content for ease of
wooden blocks shall be soaked in limewater for 24 h, sealed with varnish
placement.
or wax, or covered with an impermeable material prior to use.
3.1.1 During construction, grout is placed within or between
absorptive masonry units. Excess water must be removed from PROCEDURES
5. Test Specimens
This test method is under the jurisdiction of ASTM Committee C12 on Mortars
5.1 Each grout specimen shall have a square cross-section,
and Grouts for Unit Masonry and is the direct responsibility of Subcommittee
C12.02 on Research and Methods of Test.
3 in. (76 mm) or larger on the sides and twice as high as its
Current edition approved Nov. 10, 2000. Published December 2000. Originally
width. Dimensional tolerances shall be within 5 % of the width
published as C 1019–84. Last previous edition C 1019–00a.
selected.
Annual Book of ASTM Standards, Vol 04.02.
Annual Book of ASTM Standards, Vol 04.01. 5.2 Test at least three specimens at each age specified.
Annual Book of ASTM Standards, Vol 04.05.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
C 1019
6.4 Line the masonry surfaces that will be in contact with
the grout specimen with a thin, permeable material to prevent
bond to the masonry units.
NOTE 7—The lining, such as paper towel, is used to aid in stripping the
grout specimen from the mold. Proper installation of the lining prevents
irregularly sized specimens and varying test results.
6.5 Brace units to prevent displacement during grouting and
NOTE—Front masonry unit stack not shown to allow view of specimen.
curing.
FIG. 1 Grout Mold (Units 6 in. (152.4 mm) or Less in Height, 2 ⁄4
in. (57.2 mm) High Brick Shown)
7. Sampling Grout
7.1 Size of Sample—Grout samples to be used for slump and
compressive strength tests shall be a minimum of ⁄2 ft (0.014
3 3
m ). Sample size retained at ⁄2 ft .
7.2 Procedure—The procedures used in sampling shall
include the use of precautions that will assist in obtaining
samples that are representative of the nature and condition of
the grout. After the final slump adjustment has been made,
sample grout as the grout is being placed.
7.2.1 Field Sampling—Collect two or more portions taken
NOTE—Front masonry unit not shown to allow view of specimen.
at regularly spaced intervals during the discharge of the middle
FIG. 2 Grout Mold (Units Greater than 6 in. (152.4 mm) High, 8 in.
portion of the batch. The elapsed time between obtaining the
(203.2 mm) High Concrete Masonry Unit Shown)
first and final portions of the sample shall be as short as
possible, but not more than 15 min.
NOTE 4—Frequency of sampling and age of test is to be determined by 7.2.2 Laboratory Sampling—The entire mixed batch of
the specifier of this test method and is usually found in the construction
grout is the sample.
documents.
NOTE 8—The field technician sampling, making, and curing specimens
for acceptance testing should be certified (American Concrete Institute
6. Mold Construction
Field Testing Technician—Grade I, National Concrete Masonry Associa-
6.1 Select a level location where the molds remain undis-
tion Masonry Testing Technician, or equivalent). Equivalent certification
turbed for 48 h.
programs should include both written and performance examinations.
NOTE 5—The location of specimen construction should be protected
7.3 Transport the grout sample to the mold location. Protect
and as free from perceptible vibration as possible.
the sample from the sun, wind, and other sources of rapid
evaporation and from contamination. Remix the sample with a
6.2 The construction of the mold shall simulate the in-situ
construction. If the grout is placed between two different types shovel or trowel to ensure uniformity.
of masonry units, both types shall be used to construct the
8. Temperature and Slump Test
mold.
6.3 Form a space with a square cross-section, 3 in. (76 mm) 8.1 Measure and record the temperature of the grout sample
or larger on each side and twice as high as its width, by in accordance with Test Method C 1064.
stacking masonry units of the same type and moisture condi- 8.2 Begin filling the slump cone within 5 min of obtaining
tion as those being used in the construction. The surface of the the final portion of the sample.
unit in contact with the grout specimen shall not have been 8.3 Measure and record the slump in accordance with the
previously used to mold specimens. Place nonabsorbent requirements of Test Method C 143.
blocks, cut to proper size and of the proper thickness or
9. Compressive Test Specimen
quantity, at the bottom of the space to achieve the necessary
height of speci
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