ASTM C1506-01

Standard Test Method for Water Retention of Hydraulic Cement-Based Mortars and Plasters

SCOPE
1.1 This test method provides for the determination of water retention of hydraulic cement-based mortars and plasters.
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. (Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.)

General Information

• Status: Historical
• Publication Date: 09-Aug-2001
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C01 - Cement
• Drafting Committee: C01.22 - Workability

Relations

• Replaced By: ASTM C1506-03 - Standard Test Method for Water Retention of Hydraulic Cement-Based Mortars and Plasters
• Effective Date: 10-Jan-2003
• Referred By: ASTM C1329/C1329M-23 - Standard Specification for Mortar Cement
• Effective Date: 10-Aug-2001
• Referred By: ASTM C1093-23 - Standard Practice for Accreditation of Testing Agencies for Masonry
• Effective Date: 10-Aug-2001
• Referred By: ASTM C1922-23 - Standard Test Method for Water Retention of Hydraulic Cement-Based Mortars and Plasters by Way of Water Loss
• Effective Date: 10-Aug-2001
• Referred By: ASTM C1328/C1328M-23 - Standard Specification for Plastic (Stucco) Cement
• Effective Date: 10-Aug-2001
• Referred By: ASTM C183/C183M-23 - Standard Practice for Sampling and the Amount of Testing of Hydraulic Cement
• Effective Date: 10-Aug-2001
• Referred By: ASTM C1713-23 - Standard Specification for Mortars for the Repair of Historic Masonry
• Effective Date: 10-Aug-2001
• Referred By: ASTM C91/C91M-23 - Standard Specification for Masonry Cement
• Effective Date: 10-Aug-2001
• Referred By: ASTM C270-19ae1 - Standard Specification for Mortar for Unit Masonry
• Effective Date: 10-Aug-2001
• Referred By: ASTM C1222-23 - Standard Practice for Evaluation of Laboratories Testing Hydraulic Cement
• Effective Date: 10-Aug-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 1506 – 01
Standard Test Method for
Water Retention of Hydraulic Cement-Based Mortars and
Plasters
This standard is issued under the fixed designation C 1506; 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 ability of mortars and plasters to retain water under suction.
Test results may be used to determine compliance with
1.1 This test method provides for the determination of water
specifications.
retention of hydraulic cement-based mortars and plasters.
4.2 The results obtained using this test method can be used
1.2 The values stated in SI units are to be regarded as the
to compare the relative ability of mortars and plasters to retain
standard.
water under suction.
1.3 This standard does not purport to address all of the
4.3 The results obtained using this test method for masonry
safety concerns, if any, associated with its use. It is the
mortars do not necessarily indicate the degree of water
responsibility of the user of this standard to establish appro-
retention when used with masonry units, since the amount of
priate safety and health practices and determine the applica-
water absorbed by the unit depends on the rate of absorption of
bility of regulatory limitations prior to use. (Warning—Fresh
the masonry unit.
hydraulic cementitious mixtures are caustic and may cause
4.4 The results obtained using this test method for plasters
chemical burns to skin and tissue upon prolonged exposure.)
(stucco) do not necessarily indicate the degree of water
2. Referenced Documents retention when the plaster is applied as a second coat on the
surface of a previously applied plaster base coat, since the
2.1 ASTM Standards:
amount of water absorbed from the second coat of plaster
C 109/C 109M Test Method for Compressive Strength of
depends on the rate of absorption of the base coat. This is also
Hydraulic Cement Mortars (Using 2-in. or 50-mm Cube
true when a plaster is applied as a coating on masonry units.
Specimens)
C 185 Test Method for Air Content of Hydraulic Cement
5. Apparatus
Mortar
5.1 Tamper, conforming to Test Method C 109/C 109M.
C 230 Specification for Flow Table for Use in Tests of
3 5.2 Straightedge, conforming to Test Method C 185.
Hydraulic Cement
5.3 Flow Table, conforming to Specification C 230.
C 305 Practice for Mechanical Mixing of Hydraulic Cement
3 5.4 Mixing Apparatus, conforming to the requirements pre-
Pastes and Mortars of Plastic Consistency
scribed in Practice C 305.
C 670 Practice Preparing Precision and Bias Statements for
4 5.5 Filtration Assembly, an apparatus essentially as shown
Test Methods for Construction Materials
in Fig. 1 shall be used. This apparatus consists of a perforated
C 1437 Test Method for Flow of Hydraulic Cement Mortar
dish resting on a funnel, which is connected by a three-way
3. Summary of Test Method
stopcock to a vacuum flask, to which a controlled vacuum is
applied. The perforated dish shall be made of metal not
3.1 The flow of the mortar or plaster is determined. The
attacked by masonry mortar or plaster (Note 1). The metal base
mortar or plaster is then subjected to a controlled vacuum
of the dish shall have a thickness of 1.8 6 0.1 mm and shall
suction for 60 s, after which the flow is again determined. The
conform to the requirements given in Fig. 1. The stopcock bore
water retention is the final flow divided by the initial flow
shall have a 4.0 6 0.5-mm diameter, and the connecting glass
expressed as a percentage.
tubing shall have a minimum inside diameter of 4 mm. The
4. Significance and Use
length of the tubing projecting into the 1-L flask from the
stopcock shall extend at least 25 mm below the center line of
4.1 This test method provides a means for determining the
the vacuum connection. The contact surfaces of the funnel and
perforated dish shall be plane and may need to be lapped to
This test method is under the jurisdiction of ASTM Committee C01 on Cement
ensure intimate contact. An airtight seal shall be maintained
and is the direct responsibility of Subcommittee C01.22 on Workability.
between the funnel and the dish during the test. This shall be
Current edition approved Aug. 10, 2001. Published October 2001.
Section on Safety, Manual of Cement Testing, Annual Book of ASTM
accomplished by either of the following procedures. (1)A
Standards, Vol 04.01.
synthetic (grease-resistant) rubber gasket may be permanently
Annual Book of ASTM Standards, Vol 04.01.
4 sealed to the top of the funnel using petrolatum or light grease
Annual Book of ASTM Standards, Vol 04.02.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
C 1506
NOTE—The gasket is to be synthetic rubber. The stopcock and the bore of the tubing shall be at least 4-mm. A check valve or water trap, or both, is
suggested for the connection to the vacuum source.
FIG. 1 Apparatus Assembly for the Water-Retention Test
NOTE 1—Stainless steel, brass, and bronze are suitable metals for this
to ensure a seal between the gasket and dish. (2) The top of the
purpose.
funnel may be lightly coated with petroleum or light grease to
ensure a seal between the funnel and dish. Care should be taken 5.6 Controlled Vacuum Source:
to ensure that none of the holes in the perforated dish become 5.6.1 A vacuum gage capable of reading at least 70 mm of
clogged. Hardened, smooth, not rapid filter paper shall be used. Hg in 1-mm increments, connected to a miniature vacuum
It shall be 150 mm in diameter and be placed so as to regulator having a maximum 400-mm capacity, which is then
completely cover the perforations in the dish. connected to a vacuum pump or water aspirator as shown in
NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
C 1506
Fig. 1. Connection is mad
...