ASTM C1329-00
(Specification)Standard Specification for Mortar Cement
Standard Specification for Mortar Cement
SCOPE
1.1 This specification covers three types of mortar cement for use where mortar for masonry is required.
1.2 The values stated in SI 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
Relations
Standards Content (Sample)
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.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 1329 – 00
Standard Specification for
Mortar Cement
This standard is issued under the fixed designation C 1329; 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 219 Terminology Relating to Hydraulic Cement
C 230/C 230M Specification for Flow Table for Use in Tests
1.1 This specification covers three types of mortar cement
of Hydraulic Cement
for use where mortar for masonry is required.
C 266 Test Method for Time of Setting of Hydraulic-
1.2 The values stated in SI units are to be regarded as the
Cement Paste by Gillmore Needles
standard. Values in SI units shall be obtained by measurement
C 305 Practice for Mechanical Mixing of Hydraulic Cement
in SI units or by appropriate conversion, using the Rules for
Pastes and Mortars of Plastic Consistency
Conversion and Rounding given in IEEE/ASTM SI 10, of
C 430 Test Method for Fineness of Hydraulic Cement by
measurements made in other units.
the 45-μm (No. 325) Sieve
1.3 The text of this standard refers to notes and footnotes
C 511 Specification for Moist Cabinets, Moist Rooms, and
which provide explanatory material. These notes and footnotes
Water Storage Tanks Used in the Testing of Hydraulic
(excluding those in tables and figures) shall not be considered
Cements and Concretes
as requirements of the standard.
C 778 Specification for Standard Sand
1.4 The following safety hazards caveat pertains only to
C 780 Test Method for Preconstruction and Construction
Annex A1. This standard does not purport to address all of the
Evaluation of Mortars for Plain and Reinforced Unit
safety concerns, if any, associated with its use. It is the
Masonry
responsibility of the user of this standard to establish appro-
C 1072 Test Method for Measurement of Masonry Flexural
priate safety and health practices and determine the applica-
Bond Strength
bility of regulatory limitations prior to use.
IEEE/ASTM SI 10 Standard for Use of the International
2. Referenced Documents System of Units (SI): The Modern Metric System
2.1 ASTM Standards:
3. Terminology
C 91 Specification for Masonry Cement
3.1 Definitions—Terms used in this specification are defined
C 109/C 109M Test Method for Compressive Strength of
in Terminology C 219.
Hydraulic Cement Mortars (Using 2-in. or 50-mm Cube
3.2 Definition of Term Specific to This Standard:
Specimens)
3.2.1 mortar cement—a hydraulic cement, primarily used in
C 128 Test Method for Specific Gravity and Absorption of
masonry construction, consisting of a mixture of portland or
Fine Aggregate
blended hydraulic cement and plasticizing materials (such as
C 140 Test Methods of Sampling and Testing Concrete
limestone or hydrated or hydraulic lime), together with other
Masonry Units
materials introduced to enhance one or more properties such as
C 151 Test Method for Autoclave Expansion of Portland
setting time, workability, water retention, and durability.
Cement
3.2.1.1 Discussion—Mortar cement is similar to masonry
C 183 Practice for Sampling and the Amount of Testing of
cement in use and function. However, this specification re-
Hydraulic Cement
quires lower air contents and includes a flexural bond strength
C 185 Test Method for Air Content of Hydraulic Cement
requirement.
Mortar
C 187 Test Method for Normal Consistency of Hydraulic
4. Classification
Cement
2 4.1 Mortar cements are classified as Type N, S, or M,
C 188 Test Method for Density of Hydraulic Cement
according to the physical requirements prescribed in Table 1.
5. Physical Properties
This specification is under the jurisdiction of ASTM Committee C-1 on Cement
5.1 Mortar cement shall conform to the applicable require-
and is the direct responsibility of Subcommittee C01.11 on Masonry Cement.
Current edition approved Jan. 10, 2000. Published March 2000. Originally
ments prescribed in Table 1 for its classification.
published as C 1329 – 96. Last previous edition C 1329 – 98.
Annual Book of ASTM Standards, Vol 04.01.
Annual Book of ASTM Standards, Vol 04.02.
4 5
Annual Book of ASTM Standards, Vol 04.05. Annual Book of ASTM Standards, Vol 14.02.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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 1329
TABLE 1 Physical Requirements
Mortar Cement Type N S M
Fineness, residue on a 45-μm (No. 325) sieve, max, % 24 24 24
Autoclave expansion, max, % 1.0 1.0 1.0
Time of setting, Gillmore method:
Initial set, min, not less than 120 90 90
Final set, min, not more than 1440 1440 1440
Compressive strength (average of three cubes):
The compressive strength of mortar cubes, composed of 1 part cement and 3 parts blended sand (half graded
standard sand and half standard 20–30 sand) by volume, prepared and tested in accordance with this
specification, shall be equal to or higher than the values specified for the ages indicated below:
7 days, MPa (psi) 3.5 (500) 9.0 (1300) 12.4 (1800)
28 days, MPa (psi) 6.2 (900) 14.5 (2100) 20.0 (2900)
Flexural bond strength
28 days, min, MPa (psi) 0.5 (70) 0.7 (100) 0.8 (115)
Air content of mortar:
Min, volume % 88 8
Max, volume % 17 15 15
Water retention value, min, %, of original flow 70 70 70
6. Sampling 13. Apparatus for Mortar Tests
6.1 At the option of the purchaser, the cement shall be 13.1 Weights and Weighing Devices, Sieves, Glass Gradu-
sampled and tested to verify compliance with this specification, ates, Specimen (Cube) Molds, Tamper, Trowel, and Testing
sampling and testing shall be performed in accordance with Machine, as described in Test Method C 109/C 109M.
Practice C 183. 13.2 Flow Table, conforming to the requirements prescribed
6.2 Practice C 183 is not designed for manufacturing quality in Specification C 230/C 230M.
control and is not required for manufacturer’s certification. 13.3 Mixing Apparatus, conforming to the requirements
prescribed in Practice C 305.
7. Temperature and Humidity
13.4 Measure, Straightedge, Tapping Stick, and Spoon,
7.1 The temperature and relative humidity of the air in the
conforming to the requirements given in Test Method C 185.
vicinity of the mixing slab and dry materials, molds, base
14. Blended Sand
plates, and mixing bowl shall conform to the requirements of
Test Method C 109/C 109M.
14.1 The sand shall be a blend of equal parts by weight of
7.2 The moist cabinet or moist room shall conform to the
graded standard sand and 20–30 standard sand conforming to
requirements of Specification C 511.
Specification C 778.
8. Fineness
15. Preparation of Mortar
8.1 Determine the residue on the 45-μm (No. 325) sieve in
15.1 Proportions for Mortar—Mortar for air entrainment,
accordance with Test Method C 430.
compressive strength, and water retention tests shall be pro-
portioned to contain 1620 g of sand and a mass of cement, in
9. Normal Consistency
grams, as indicated in Table 2. The sand shall consist of 810 g
9.1 Determine the normal consistency by the Vicat appara-
of graded standard sand and 810 g of 20-30 standard sand
tus in accordance with Test Method C 187.
(Note 1). The quantity of water, measured in millilitres, shall
be such as to produce a flow of 110 6 5 as determined by Test
10. Autoclave Expansion
Method C 109/C 109M.
10.1 Determine the autoclave expansion in accordance with
NOTE 1—Historically, field-mixed mortar has been proportioned by
Test Method C 151. After molding, store the bars in the moist
volume measured in increments or fractions of 1 ft . The comparable
cabinet or room for 48 h 6 30 min before removal from the
whole SI-unit volume to 1 ft is 28 L. The specified mortar proportions
molds for measurement and testing in the autoclave. Calculate
approximate the 1:3 nominal proportions by volume, commonly specified
the difference in length of the test specimen before and after
for construction, on the basis of the following assumed mass and volume
autoclaving to the nearest 0.01 % of the effective gage length,
relationships:
and report as the autoclave expansion of the mortar cement.
The mass of dry sand in 28 L of loose damp sand is 36 kg.
28 L of Type N mortar cement has a mass of 32 kg.
11. Time of Setting
28 L of Type S mortar cement has a mass of 34 kg.
28 L of Type M mortar cement has a mass of 36 kg.
11.1 Determine the time of setting by the Gillmore needle
method in accordance with Test Method C 266.
TABLE 2 Cement in Laboratory Batch of Mortar
12. Density
Mortar Cement Type Mass of Cement, g
12.1 Determine the density of the mortar cement in accor-
N 480
dance with Test Method C 188, using kerosine as the liquid.
S 510
Use the density so determined in the calculation of the air
M 540
content of the mortars.
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 1329
For example, the amount of cement needed to provide a 1:3 volume
water for all other specimens. If more than one specimen at a
proportion of cement to sand using a Type N mortar cement is calculated
time is removed from the moist cabinet or moist room for
as follows:
7-day tests, cover these cubes with a damp cloth until the time
A 5 1620 3 ~C/B! 5 1620 3 ~32/108! 5 480 (1)
of testing.
17.2.2 The remainder of the testing procedure shall conform
where:
to Test Method C 109/C 109M.
A 5 number of grams of cement to be used in the mortar
with 1620 g of sand,
18. Water Retention
B 5 3 3 36 5 108 kg, the mass of dry sand in 84 (or 3 3
18.1 Water retention shall be determined in accordance with
28) L of loose damp sand, and
the procedures described in Specification C 91.
C 5 mass of Type N mortar cement per 28 L.
15.2 Mixing of Mortars—Mix the mortar in accordance
19. Flexural Bond Strength
with Practice C 305.
19.1 Flexural bond strength shall be determined in accor-
15.3 Determination of Flow—Determine the flow in accor-
dance with the procedure set forth in Annex A1 of this
dance with Test Method C 109/C 109M.
specification.
16. Air Entrainment
20. Storage
16.1 Procedure—If the mortar has the correct flow, use a
20.1 The cement shall be stored in such a manner as to
separate portion of the mortar for the determination of en-
permit easy access for proper inspection and identification of
trained air. Determine the mass of 400 mL of mortar in
each shipment, and in a suitable weathertight building that will
accordance with Test Method C 185.
protect the cement from dampness and minimize warehouse
16.2 Calculation—Calculate the air content of the mortar,
set.
and report it to the nearest 1 % as follows:
21. Inspection
D 5 ~W 1 W 1 V !/@~W /S ! 1 ~W /S !
1 2 w 1 1 2 2
1 V # A
w
21.1 Adequate facilities shall be provided to the purchaser
5 100 2 ~W /4D! (2)
m
for the necessary inspection and sampling.
21.2 All packages shall be in good condition at the time of
where:
inspection.
D 5 density of air-free mortar, g/cm ,
W 5 mass of cement, g,
22. Rejection
W 5 mass of sand, g,
22.1 At the option of the purchaser, the cement shall be
V 5 mL-g of water used,
w
S 5 density of cement, g/cm , rejected if it fails to meet any of the requirements of this
S 5 density of standard sand, 2.65 g/cm , specification.
A 5 volume percent of entrained air, and
22.2 At the option of the purchaser, packages more than 2 %
W 5 mass of 400 mL of mortar, g.
below the mass marked thereon shall be rejected. At the option
m
of the purchaser, the entire shipment shall be rejected if the
17. Compressive Strength
average mass of packages in any shipment, as shown by
17.1 Test Specimens:
weighing 50 packages taken at random, is less than that marked
17.1.1 Molding—Immediately after determining the flow on the packages.
and mass of 400 mL of mortar, return all of the mortar to the
22.3 At the option of the purchaser, cement remaining in
mixing bowl and remix for 15 s at the medium speed. Then storage prior to shipment for a period greater than six months
mold the test specimens in accordance with Test Method
after testing shall be retested and, at the option of the
C 109/C 109M, except that the elapsed time for mixing mortar, purchaser, shall be rejected if it fails to meet any of the
determining flow, determining air entrainment, and starting the requirements of this specification.
molding of cubes shall be within 8 min.
23. Manufacturer’s Certification
17.1.2 Storage—Immediately after molding, store all test
specimens in the molds on plane plates in a moist cabinet or
23.1 Upon request of the purchaser in the contract or order,
moist room for 48 to 52 h in such a manner that the upper a manufacturer’s report shall be furnished at the time of
surfaces shall be exposed to the moist air. Then remove the
shipment stating the results of the tests made on samples of the
cubes from the molds, and place them in the moist cabinet or material taken during production or transfer and certifying that
moist room for 5 days in such a manner as to allow free
the applicable requirements of this specification have been met.
circulation of air around at least five faces of the specimens. At
24. Packaging and Package Marking
the age of 7 days, immerse the cubes for the 28-day tests in
saturated lime water in storage tanks of noncorrodible materi- 24.1 When mortar cement is delivered in packages, the
als. brand, name of the manufacturer, type of mortar cement, and
17.2 Procedure: net mass of the package in kilograms (Note 2) shall be
17.2.1 Test the cube specimens immediately after their indicated plainly thereon. Similar information shall be pro-
removal from the moist cabinet or moist room for 7-day vided in the shipping documents accompanying the shipment
specimens, and immediately after their removal from storage of mortar cement in bulk.
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 1329
NOTE 2—To facilitate the change to SI units, a standard metric package
25. Keywords
size of 32 kg for Type N, 34 kg for Type S, and 36 kg for Type M will
25.1 flexural bond strength; masonry; mortar; mortar ce-
provide convenient mass increments reasonably similar to the traditional
ment
70–, 75–, and 80–lb packages.
ANNEX
(Mandatory Information)
A1. TEST METHOD FOR DETERMINATION OF FLEXURAL BOND STRENGTH
A1.1 Scope A1.5.1.2 The unit material shall be
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.