ASTM C1403-12
(Test Method)Standard Test Method for Rate of Water Absorption of Masonry Mortars
Standard Test Method for Rate of Water Absorption of Masonry Mortars
SIGNIFICANCE AND USE
4.1 This test method provides a laboratory procedure for determining the relative water absorption properties over time of mortars used for masonry construction. Because the specimens are made under laboratory conditions and do not take into account the effect of the masonry substrate or field mixing procedures, this method is not intended for field use. Data generated from this test method may be useful for determining the relative effectiveness of water repellent admixtures or the effect of other admixtures or mortar components on the water repellency of a mortar. However, use caution in interpreting the results. While the resistance of masonry to water penetration may be related to the water absorption of the mortar, it also depends on other factors, such as the workmanship, extent of bond, and the properties of the masonry units and mortar.
SCOPE
1.1 This test method covers a standardized laboratory procedure for determining the relative water absorption by capillary uptake (wicking) characteristics of masonry mortars. This test method is not applicable for determining the effectiveness of water repellent coatings.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.2.1 Inch-pound units are given in parentheses for temperature specification and are for information only.
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: C1403 − 12
StandardTest Method for
1
Rate of Water Absorption of Masonry Mortars
This standard is issued under the fixed designation C1403; 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.
1. Scope* 3. Terminology
1.1 This test method covers a standardized laboratory pro- 3.1 Definitions—For definitions of terms used in this test
method, refer to Terminology C1180.
cedure for determining the relative water absorption by capil-
lary uptake (wicking) characteristics of masonry mortars. This
test method is not applicable for determining the effectiveness 4. Significance and Use
of water repellent coatings.
4.1 This test method provides a laboratory procedure for
determining the relative water absorption properties over time
1.2 The values stated in SI units are to be regarded as
of mortars used for masonry construction. Because the speci-
standard. No other units of measurement are included in this
mensaremadeunderlaboratoryconditionsanddonottakeinto
standard.
account the effect of the masonry substrate or field mixing
1.2.1 Inch-poundunitsaregiveninparenthesesfortempera-
procedures, this method is not intended for field use. Data
ture specification and are for information only.
generated from this test method may be useful for determining
1.3 This standard does not purport to address all of the
the relative effectiveness of water repellent admixtures or the
safety concerns, if any, associated with its use. It is the
effect of other admixtures or mortar components on the water
responsibility of the user of this standard to establish appro-
repellencyofamortar.However,usecautionininterpretingthe
priate safety and health practices and determine the applica-
results. While the resistance of masonry to water penetration
bility of regulatory limitations prior to use.
may be related to the water absorption of the mortar, it also
depends on other factors, such as the workmanship, extent of
2. Referenced Documents
bond, and the properties of the masonry units and mortar.
2
2.1 ASTM Standards:
5. Apparatus
C109/C109M Test Method for Compressive Strength of
Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube
5.1 Balance—A balance readable and accurate to 0.1 g.
Specimens)
5.2 Uptake Container—A watertight container with a mini-
C270 Specification for Mortar for Unit Masonry
mum cross sectional area that is at least 50 % greater than the
C305 Practice for Mechanical Mixing of Hydraulic Cement
total area of the specimens’ test surface(s) and a minimum
Pastes and Mortars of Plastic Consistency
depth of 75 mm. Provide a cover for the container to minimize
C511 Specification for Mixing Rooms, Moist Cabinets,
evaporation.
Moist Rooms, and Water Storage Tanks Used in the
5.2.1 Usespecimensupportsthatallowaminimumof3mm
Testing of Hydraulic Cements and Concretes
clearance from the bottom of the container and that cover a
C778 Specification for Sand
maximum of 10 % of the area of the specimen’s test surface.
C1180 Terminology of Mortar and Grout for Unit Masonry
Usesupportsmadeofamaterialthatdoesnotfloatinwaterand
C1437 Test Method for Flow of Hydraulic Cement Mortar
that does not rust, expand, or contract as a result of water
exposure.
5.2.2 The container shall be flat so that when a specimen is
1
This test method is under the jurisdiction ofASTM Committee C12 on Mortars
set on the supports the water level as specified in 7.4 shall not
and Grouts for Unit Masonryand is the direct responsibility of Subcommittee
C12.02 on Research and Methods of Test. vary by more than 1 mm from one end of the specimen to the
Current edition approved Dec. 15, 2012. Published January 2013. Originally
opposite end.
approved in 1999. Last previous edition approved in 2006 as C1403 – 06. DOI:
10.1520/C1403-12.
5.3 Specimen Molds—Metalnominal50-mmcubespecimen
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
moldswithremovableplasticwatertightdisposableliners.The
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
plastic liners shall be rigid enough to retain their shape when
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. free standing and filled with mortar.
*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
1
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C1403 − 12
NOTE 1—For this test method, actual specimen dimensions are mea-
h with their upper surfaces exposed to the moist air but
suredandusedtocalcu
...
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: C1403 − 06 C1403 − 12
Standard Test Method for
1
Rate of Water Absorption of Masonry Mortars
This standard is issued under the fixed designation C1403; 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.
1. Scope*
1.1 This test method covers a standardized laboratory procedure for determining the relative water absorption by capillary
uptake (wicking) characteristics of masonry mortars. This test method is not applicable for determining the effectiveness of water
repellent coatings.
1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are for
information only.No other units of measurement are included in this standard.
1.2.1 Inch-pound units are given in parentheses for temperature specification and are for information only.
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
2.1 ASTM Standards:
C109/C109M Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube Specimens)
C270 Specification for Mortar for Unit Masonry
C305 Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency
C511 Specification for Mixing Rooms, Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the Testing of Hydraulic
Cements and Concretes
C778 Specification for Sand
C1180 Terminology of Mortar and Grout for Unit Masonry
C1437 Test Method for Flow of Hydraulic Cement Mortar
3. Terminology
3.1 Definitions—For definitions of terms used in this test method, refer to Terminology C1180.
4. Significance and Use
4.1 This test method provides a laboratory procedure for determining the relative water absorption properties over time of
mortars used for masonry construction. Because the specimens are made under laboratory conditions and do not take into account
the effect of the masonry substrate or field mixing procedures, this method is not intended for field use. Data generated from this
test method may be useful for determining the relative effectiveness of water repellent admixtures or the effect of other admixtures
or mortar components on the water repellency of a mortar. However, use caution in interpreting the results. While the resistance
of masonry to water penetration may be related to the water absorption of the mortar, it also depends on other factors, such as the
workmanship, extent of bond, and the properties of the masonry units and mortar.
5. Apparatus
5.1 Balance—A balance sensitive readable and accurate to 0.1 g.
1
This test method is under the jurisdiction of ASTM Committee C12 on Mortars and Grouts for Unit Masonryand is the direct responsibility of Subcommittee C12.02
on Research and Methods of Test.
Current edition approved Dec. 15, 2006Dec. 15, 2012. Published January 2007January 2013. Originally approved in 1999. Last previous edition approved in 20052006
as C1403 – 05.C1403 – 06. DOI: 10.1520/C1403-06.10.1520/C1403-12.
2
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
1
---------------------- Page: 1 ----------------------
C1403 − 12
5.2 Uptake Container—A watertight container with a minimum cross sectional area that is at least 50 % greater than the total
area of the specimens’ test surface(s) and a minimum depth of 75 mm (3 in.). mm. Provide a cover for the container to minimize
evaporation.
5.2.1 Use specimen supports that allow a minimum of 3 mm (0.12 in.) clearance from the bottom of the container and that cover
a maximum of 10 % of the area of the specimen’s test surface. Use supports made of a material that does not float in water and
that does not rust, expand, or contract as a result of water exposure.
5.2.2 The container shall be flat so that when a specimen is
...
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