ASTM C1019-14
(Test Method)Standard Test Method for Sampling and Testing Grout
Standard Test Method for Sampling and Testing Grout
SIGNIFICANCE AND USE
3.1 Grout used in masonry is a fluid mixture of cementitious materials and aggregate with a high water content for ease of placement.
3.1.1 During construction, grout is placed within or between absorptive masonry units. Excess water must be removed from grout specimens in order to provide compressive strength test results more nearly indicative of the grout strength in the wall. In this test method, molds are made from masonry units having the same absorption and moisture content characteristics as those being used in the construction.
3.2 This test method is used to either help select grout proportions by comparing test values or as a quality control test for uniformity of grout preparation during construction.
3.3 The physical exposure condition and curing of the grout are not exactly reproduced, but this test method does subject the grout specimens to absorption conditions similar to those experienced by grout in the wall.
Note 2: Test results of grout specimens taken from a wall should not be compared to test results obtained with this test method.
SCOPE
1.1 This test method covers procedures for both field and laboratory sampling and compression testing of grout used in masonry construction. Grout for masonry is specified under Specification C476.
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 standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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.
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Designation: C1019 −14
StandardTest Method for
Sampling and Testing Grout
This standard is issued under the fixed designation C1019; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* C1611/C1611M Test Method for Slump Flow of Self-
Consolidating Concrete
1.1 This test method covers procedures for both field and
laboratory sampling and compression testing of grout used in
3. Significance and Use
masonry construction. Grout for masonry is specified under
Specification C476. 3.1 Groutusedinmasonryisafluidmixtureofcementitious
materials and aggregate with a high water content for ease of
NOTE 1—The testing agency performing this test method should be
placement.
evaluated in accordance with Practice C1093.
3.1.1 Duringconstruction,groutisplacedwithinorbetween
1.2 The values stated in inch-pound units are to be regarded
absorptive masonry units. Excess water must be removed from
as standard. The values given in parentheses are mathematical
grout specimens in order to provide compressive strength test
conversions to SI units that are provided for information only
results more nearly indicative of the grout strength in the wall.
and are not considered standard.
In this test method, molds are made from masonry units having
1.3 This standard does not purport to address all of the
the same absorption and moisture content characteristics as
safety concerns, if any, associated with its use. It is the
those being used in the construction.
responsibility of the user of this standard to establish appro-
3.2 This test method is used to either help select grout
priate safety and health practices and determine the applica-
proportionsbycomparingtestvaluesorasaqualitycontroltest
bility of regulatory limitations prior to use.
for uniformity of grout preparation during construction.
2. Referenced Documents
3.3 The physical exposure condition and curing of the grout
are not exactly reproduced, but this test method does subject
2.1 ASTM Standards:
the grout specimens to absorption conditions similar to those
C39/C39M Test Method for Compressive Strength of Cylin-
experienced by grout in the wall.
drical Concrete Specimens
C143/C143M Test Method for Slump of Hydraulic-Cement
NOTE 2—Test results of grout specimens taken from a wall should not
Concrete be compared to test results obtained with this test method.
C476 Specification for Grout for Masonry
4. Apparatus
C511 Specification for Mixing Rooms, Moist Cabinets,
Moist Rooms, and Water Storage Tanks Used in the
4.1 Maximum-Minimum Thermometer.
Testing of Hydraulic Cements and Concretes
4.2 Straightedge, a steel straightedge not less than 6 in.
C617 Practice for Capping Cylindrical Concrete Specimens
(152.4 mm) long and not less than ⁄16 in. (1.6 mm) in
C1064/C1064M Test Method for Temperature of Freshly
thickness.
Mixed Hydraulic-Cement Concrete
4.3 TampingRod,around,straight,steelrodwithadiameter
C1093 Practice for Accreditation of Testing Agencies for
3 1
Masonry of ⁄8 6 ⁄16 in. (10 6 2 mm) and a length of 12 6 4 inches.
(300 6 100 millimetres). The rod shall have the tamping end
or both ends rounded to a hemispherical tip of the same
This test method is under the jurisdiction ofASTM Committee C12 on Mortars
diameter as the rod.
and Grouts for Unit Masonry and is the direct responsibility of Subcommittee
C12.02 on Research and Methods of Test.
4.4 Nonabsorbent Blocks and Spacers, nonabsorbent, rigid
Current edition approved Dec. 1, 2014. Published January 2015. Originally
squares and rectangles with side dimensions so as to achieve
approved in 1984. Last previous edition approved in 2013 as C1019 – 13. DOI:
the desired grout specimen side dimensions and of sufficient
10.1520/C1019-14.
quantity or thickness to yield the desired grout specimen
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
height, as shown in Fig. 1, Fig. 2, and Fig. 3.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. NOTE 3—Nonabsorbent blocks may be of plastic, wood, or other
*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
C1019 − 14
6.1.3 Form a space with a square cross-section, 3 in. (76
mm) or larger on each side and twice as high as its width, by
stacking masonry units of the same type and moisture condi-
tion as those being used in the construction. The surface of the
unit in contact with the grout specimen shall not have been
previously used to mold specimens. Place nonabsorbent
blocks, cut to proper size and of the proper thickness or
NOTE 1—Front masonry unit stack not shown to allow view of
quantity, at the bottom of the space to achieve the necessary
specimen.
height of specimen. Tolerance on space and specimen dimen-
FIG. 1 Grout Mold (Units 6 in. (152.4 mm) or Less in Height, 2 ⁄4
sions shall be within 5 % of the specimen width. See Fig. 1,
in. (57.2 mm) High Brick Shown)
Fig. 2, and Fig. 3 and accompanying notes.
6.1.4 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. New lining material shall be used
for each specimen.
NOTE 6—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.
6.1.5 Brace units to prevent displacement during grouting
NOTE 1—Front masonry unit not shown to allow view of specimen.
and curing.
FIG. 2 Grout Mold (Units Greater than 6 in. (152.4 mm) High, 8 in.
(203.2 mm) High Concrete Masonry Unit Shown) 6.2 Alternative Methods—Alternative methods of forming
the specimens shall be used only with the approval of the
specifier. Such approval shall be based on comparative testing
of grout specimens constructed from molds as described in 6.1
nonabsorbent material. Certain species of wood contain sugars which
and the alternative method. Approval shall be limited to a
cause retardation of cement. In order to prevent this from occurring, new
single specimen shape, method of forming, masonry units
wooden blocks shall be soaked in limewater for 24 h, sealed with varnish
used, and grout mix.Aconversion factor based on comparative
or wax, or covered with an impermeable material prior to use.
testing of a minimum of ten pairs of specimens shall be used to
4.5 Panels and plates, pieces of ⁄4 in. (19 mm) plywood
modify results from alternative methods.
with dimensions as needed to contain units and grout speci-
NOTE7—Othermethodsofobtaininggroutspecimensandspecimensof
mens. Soak in limewater for 24 h, seal with varnish or wax, or
different geometry have been employed in grout testing, but are not
cover with an impermeable material prior to use. A nonabsor- described in this test method. Other methods used to obtain grout
specimens include: drilling grout-filled cores of regular units; filling cores
bant material of equivalent stiffness to the plywood is permit-
of masonry units specifically manufactured to provide grout specimens;
ted.
filling compartments in slotted corrugated cardboard boxes specifically
manufactured to provide grout specimens; and forming specimens from
PROCEDURES
different sized masonry units of the same or similar material.
Sincetestresultsvarywithmethodsofformingthespecimen,specimen
5. Test Specimens
geometry, and grout mix, comparative test results between specimens
made with molds described in 6.1 and specimens made with alternative
5.1 Each grout specimen shall have a square cross-section,
methods are required and confined to a single specimen shape, method of
3 in. (76 mm) or larger on the sides and twice as high as its
forming, masonry units used, and grout mix.
width. Dimensional tolerances shall be within 5 % of the width
selected.
7. Sampling Grout
5.2 Test at least three specimens at each age specified.
7.1 SizeofSample—Groutsamplestobeusedforslumpand
compressive strength tests shall be a minimum of ⁄2 ft (0.014
NOTE 4—Frequency of sampling and age of test is to be determined by
the specifier of this test method and is usually found in the construction
m ).
documents.
7.2 Procedure—The procedures used in sampling shall in-
clude the use of precautions that will assist in obtaining
6. Grout Specimen Molds
samples that are representative of the nature and condition of
6.1 Molds from Masonry Units:
the grout. After the final slump adjustment has been made,
6.1.1 Select a level location where the molds remain undis-
sample grout as the grout is being placed.
turbed for up to 48 h.
7.2.1 Field Sampling—Collect two or more portions taken
NOTE 5—The location of specimen construction should be protected at regularly spaced intervals during the discharge of the middle
and as free from perceptible vibration as possible.
portion of the batch. The elapsed time between obtaining the
first and final portions of the sample shall be not more than 15
6.1.2 The construction of the mold shall simulate the in-situ
min.
construction. If the grout is placed between two different types
of masonry units, both types shall be used to construct the 7.2.2 Laboratory Sampling—The entire mixed batch of
mold. grout is the sample.
C1019 − 14
FIG. 3 Grout Mold with Brick and Concrete Masonry Units
NOTE 8—The field technician sampling, making, and curing specimens
into the lower layer. Distribute the strokes uniformly over the
for acceptance testing should be certified (American Concrete Institute
cross section of the mold.
Field Testing Technician—Grade I, National Concrete Masonry Associa-
9.3 For self-consolidating grout, fill the mold with grout in
tion Masonry Testing Technician, or equivalent). Equivalent certification
programs should include both written and performance examinations.
one layer and do not rod.
7.3 Placethegroutsampleinanon-absorptivecontainerand
9.4 Strike off the top surface of the specimen with a
cover the top to protect the sample from the sun, wind, and any
straightedge to produce a flat surface that is even with the top
other sources of rapid evaporation and from contamination.
edge of the mold and that has no depressions or projections
Transport the grout sample to the mold location. Remix the 1
larger than ⁄8 in. (3.2 mm). Cover immediately with a damp
sample with a shovel or trowel to ensure uniformity prior to
absorbent material such as cloth or paper towel. Keep the top
filling molds. Keep remaining grout sample protected until
surface of t
...
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: C1019 − 13 C1019 − 14
Standard Test Method for
Sampling and Testing Grout
This standard is issued under the fixed designation C1019; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 This test method covers procedures for both field and laboratory sampling and compression testing of grout used in masonry
construction. Grout for masonry is specified under Specification C476.
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 standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered 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.
2. Referenced Documents
2.1 ASTM Standards:
C39/C39M Test Method for Compressive Strength of Cylindrical Concrete Specimens
C143/C143M Test Method for Slump of Hydraulic-Cement Concrete
C476 Specification for Grout for Masonry
C511 Specification for Mixing Rooms, Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the Testing of Hydraulic
Cements and Concretes
C617 Practice for Capping Cylindrical Concrete Specimens
C1064/C1064M Test Method for Temperature of Freshly Mixed Hydraulic-Cement Concrete
C1093 Practice for Accreditation of Testing Agencies for Masonry
C1611/C1611M Test Method for Slump Flow of Self-Consolidating Concrete
3. Significance and Use
3.1 Grout used in masonry is a fluid mixture of cementitious materials and aggregate with a high water content for ease of
placement.
3.1.1 During construction, grout is placed within or between absorptive masonry units. Excess water must be removed from
grout specimens in order to provide compressive strength test results more nearly indicative of the grout strength in the wall. In
this test method, molds are made from masonry units having the same absorption and moisture content characteristics as those
being used in the construction.
3.2 This test method is used to either help select grout proportions by comparing test values or as a quality control test for
uniformity of grout preparation during construction.
3.3 The physical exposure condition and curing of the grout are not exactly reproduced, but this test method does subject the
grout specimens to absorption conditions similar to those experienced by grout in the wall.
NOTE 2—Test results of grout specimens taken from a wall should not be compared to test results obtained with this test method.
This test method is under the jurisdiction of ASTM Committee C12 on Mortars and Grouts for Unit Masonryand and is the direct responsibility of Subcommittee C12.02
on Research and Methods of Test.
Current edition approved June 15, 2013Dec. 1, 2014. Published June 2013January 2015. Originally approved in 1984. Last previous edition approved in 20112013 as
C1019 – 11.C1019 – 13. DOI: 10.1520/C1019-13.10.1520/C1019-14.
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.
*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
C1019 − 14
4. Apparatus
4.1 Maximum-Minimum Thermometer.
4.2 Straightedge, a steel straightedge not less than 6 in. (152.4 mm) long and not less than ⁄16 in. (1.6 mm) in thickness.
3 1
4.3 Tamping Rod, a round, straight, steel rod with a diameter of ⁄8 6 ⁄16 in. (10 6 2 mm) and a length of 12 6 4 inches. (300
6 100 millimetres). The rod shall have the tamping end or both ends rounded to a hemispherical tip of the same diameter as the
rod.
4.4 Nonabsorbent Blocks and Spacers, nonabsorbent, rigid squares and rectangles with side dimensions so as to achieve the
desired grout specimen side dimensions and of sufficient quantity or thickness to yield the desired grout specimen height, as shown
in Fig. 1, Fig. 2, and Fig. 3.
NOTE 3—Nonabsorbent blocks may be of plastic, wood, or other nonabsorbent material. Certain species of wood contain sugars which cause retardation
of cement. In order to prevent this from occurring, new wooden blocks shall be soaked in limewater for 24 h, sealed with varnish or wax, or covered
with an impermeable material prior to use.
4.5 Panels and plates, pieces of ⁄4 in. (19 mm) plywood with dimensions as needed to contain units and grout specimens. Soak
in limewater for 24 h, seal with varnish or wax, or cover with an impermeable material prior to use. A nonabsorbant material of
equivalent stiffness to the plywood is permitted.
PROCEDURES
5. Test Specimens
5.1 Each grout specimen shall have a square cross-section, 3 in. (76 mm) or larger on the sides and twice as high as its width.
Dimensional tolerances shall be within 5 % of the width selected.
5.2 Test at least three specimens at each age specified.
NOTE 4—Frequency of sampling and age of test is to be determined by the specifier of this test method and is usually found in the construction
documents.
6. Grout Specimen Molds
6.1 Molds from Masonry Units:
6.1.1 Select a level location where the molds remain undisturbed for up to 48 h.
NOTE 5—The location of specimen construction should be protected and as free from perceptible vibration as possible.
6.1.2 The construction of the mold shall simulate the in-situ construction. If the grout is placed between two different types of
masonry units, both types shall be used to construct the mold.
6.1.3 Form a space with a square cross-section, 3 in. (76 mm) or larger on each side and twice as high as its width, by stacking
masonry units of the same type and moisture condition as those being used in the construction. The surface of the unit in contact
with the grout specimen shall not have been previously used to mold specimens. Place nonabsorbent blocks, cut to proper size and
of the proper thickness or quantity, at the bottom of the space to achieve the necessary height of specimen. Tolerance on space and
specimen dimensions shall be within 5 % of the specimen width. See Fig. 1, Fig. 2, and Fig. 3 and accompanying notes.
6.1.4 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. New lining material shall be used for each specimen.
NOTE 6—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.
6.1.5 Brace units to prevent displacement during grouting and curing.
6.2 Alternative Methods—Alternative methods of forming the specimens shall be used only with the approval of the specifier.
Such approval shall be based on comparative testing of grout specimens constructed from molds as described in 6.1 and the
NOTE 1—Front masonry unit stack not shown to allow view of specimen.
FIG. 1 Grout Mold (Units 6 in. (152.4 mm) or Less in Height, 2 ⁄4 in. (57.2 mm) High Brick Shown)
C1019 − 14
NOTE 1—Front masonry unit not shown to allow view of specimen.
FIG. 2 Grout Mold (Units Greater than 6 in. (152.4 mm) High, 8 in. (203.2 mm) High Concrete Masonry Unit Shown)
alternative method. Approval shall be limited to a single specimen shape, method of forming, masonry units used, and grout mix.
A conversion factor based on comparative testing of a minimum of ten pairs of specimens shall be used to modify results from
alternative methods.
NOTE 7—Other methods of obtaining grout specimens and specimens of different geometry have been employed in grout testing, but are not described
in this test method. Other methods used to obtain grout specimens include: drilling grout-filled cores of regular units; filling cores of masonry units
specifically manufactured to provide grout specimens; filling compartments in slotted corrugated cardboard boxes specifically manufactured to provide
grout specimens; and forming specimens from different sized masonry units of the same or similar material.
Since test results vary with methods of forming the specimen, specimen geometry, and grout mix, comparative test results between specimens made
with molds described in 6.1 and specimens made with alternative methods are required and confined to a single specimen shape, method of forming,
masonry units used, and grout mix.
7. Sampling Grout
3 3
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 m ).
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 at regularly spaced intervals during the discharge of the middle
portion of the batch. The elapsed time between obtaining the first and final portions of the sample shall be not more than 15 min.
7.2.2 Laboratory Sampling—The entire mixed batch of grout is the sample.
NOTE 8—The field technician sampling, making, and curing specimens for acceptance testing should be certified (American Concrete Institute Field
Testing Technician—Grade I, National Concrete Masonry Association Masonry Testing Technician, or equivalent). Equivalent certification programs
should include both written and performance examinations.
7.3 Place the grout sample in a non-absorptive container and cover the top to protect the sample from the sun, wind, and any
other sources of rapid evaporation and from contamination. Transport the grout sample to the mold location. Remix the sample
with a shovel or trowel to ensure uniformity prior to filling molds. Keep remaining grout sample protected until used to fill any
depression in the sample due to initial water loss.
8. Temperature and Slump Test
8.1 Measure and record the temperature of the grout sample in accordance with Test Method C1064/C1064M.
8.2 Begin filling the slump cone within 5 min of obtaining the final portion of the sample.
8.3 For all grout except self-consolidating grout, measure and record the slump in accordance with the requirements of Test
Method C143/C143M.
8.4 For self-consolidating grout, measure and record the slump flow in accordance with the requirements of Test Method
C1611/C1611M and visual stability index (VSI) in accordance with the requirements of Test Method C1611/C1611M, Appendix
X1.
9. Compressive Test Specimen
9.1 If grout from the slump or slump flow test is used for the compressive test specimens, remix the sample. Begin filling the
compressive strength molds within 15 min of obtaining the final portion of the sample.
9.2 For all grout except self-consolidating grout, fill the mold with grout in two layers of approximately equal depth. Rod each
layer 15 times with the tamping rod. Rod the bottom layer through its depth. Slightly overfill the mold. Rod the second layer with
the tamping rod penetrating ⁄2 in. (12.7 mm) into the lower layer. Distribute the strokes uniformly over the cross section of the
mold.
9.3 For self-consolidating grout, fill the mold with grout in one layer and do not rod.
C1019 − 14
FIG. 3 Grout Mold with Brick and Concrete Masonry Units
9.4 Strike off the top surface of the specimen with a straightedge to produce a flat surface that is even with the top edge of the
mold and that has no depressions or projections larger than ⁄8 in. (3.2 mm). Cover immediately with a damp absorbent material
such as cloth or paper towel. Keep the top surface of the specimens damp by wetting the absorbent material and covering with
a nonabsorbent, nonreactive material to retain the moisture. Do not disturb the specimens.
9.5 Within 30 min after filling the mold, add sufficient grout without rodding to fill the depression caused by initial water loss.
Strike off the top surface of the specimen with a straightedge to produce a flat surface that is even with the top edge of the mold.
Cover immediately with a damp absorbent material such as cloth or paper towel. Keep the top surface of the specimen damp by
wetting the absorbent material and covering with a nonabsorbent, nonreactive material. Do not disturb the specimen until the molds
are removed.
NOTE 9—The viscosity of self-consolidating grout changes with time. Thus the depression may require filling prior to the thirty minute limit.
9.6 Protect the specimens from freezing and variations in temperature. Store an indicating maximum-minimum thermometer
with the specimens and record the maximum and minimum temperatures experienced prior to the time the specimens are placed
in the final curing environment.
NOTE 10—If storage temperatures are less than 60°F (15.6°C) or greater than 80°F (26.7°C) as shown by the thermometer, the resulting compressive
strength will likely be affected.
10. Transportation, Curing, and Testing of the Specimens
10.1 Remove the molds between 24 and 48 h after making the specimens.
NOTE 11—Various conditions, such as the use of set retarders or low ambient temperatures, may necessitate delaying mold removal until well after
24 h. Care should be taken to ensure the specimens have achieved sufficient strength for transportation, which may include delaying mold removal and
transportation until 48 h.
10.2 Within 30 min after removing the molds, place specimens in a protective container and keep specimens damp.
10.3 Transport field specimens to the laboratory within 8 h after mold removal.
10.4 Within 8 h after mold removal, place in a moist room, moist cabinet, or water storage tank conforming to Specification
C511. Store there until day of testing.
10.5 S
...
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