ASTM C166-05(2016)

Standard Test Method for Covering Capacity and Volume Change Upon Drying of Thermal Insulating Cement

SIGNIFICANCE AND USE
4.1 This test method is used to determine the wet covering and volume change upon drying of thermal insulating cement.
SCOPE
1.1 Wet covering capacity and volume change upon drying are often of major importance in the application of thermal insulating cement. These properties can be easily determined at the same time that the determinations of dry covering capacity are made. Therefore, the procedures for determining these three properties are covered together in this test method.  
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.

General Information

• Status: Historical
• Publication Date: 31-Aug-2016
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C16 - Thermal Insulation
• Drafting Committee: C16.31 - Chemical and Physical Properties

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: C166 − 05 (Reapproved 2016)
Standard Test Method for
Covering Capacity and Volume Change Upon Drying of
Thermal Insulating Cement
This standard is issued under the fixed designation C166; 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 cement is mixed with the recommended amount of water,
molded, and dried to constant weight in accordance with
1.1 Wet covering capacity and volume change upon drying
Section 6.
are often of major importance in the application of thermal
insulating cement. These properties can be easily determined at 3.3 wet covering capacity—the area covered in “ft , 1 in. in
the same time that the determinations of dry covering capacity
thickness/100 lb of dry cement” (m , 1 cm in thickness/100 kg
are made. Therefore, the procedures for determining these of dry cement) when the cement is mixed with the recom-
three properties are covered together in this test method.
mended amount of water and molded in accordance with
Section 6.
1.2 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
3.4 Definitions in Terminology C168 shall be considered as
conversions to SI units that are provided for information only
applying to the terms used in this test method.
and are not considered standard.
4. Significance and Use
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4.1 This test method is used to determine the wet covering
responsibility of the user of this standard to establish appro-
and volume change upon drying of thermal insulating cement.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
5. Apparatus
5.1 Mold—A rigid mold having inside dimensions of 1 by 8
2. Referenced Documents
by 30 in. (25.4 by 203 by 726 mm) with one end and one face
2.1 ASTM Standards:
open, and a piece of wood or other suitable material 1 by 1 ⁄2
C163 Practice for Mixing Thermal Insulating Cement
by 7 ⁄8 in. (25.4 by 38.1 by 200 mm) in dimensions for squaring
Samples
up the end of the test specimen toward the open end of the
C168 Terminology Relating to Thermal Insulation
mold.
5.2 Wax Paper—Sheets of wax paper 8 by 30 in. (200 by
3. Terminology
762 mm) in dimensions.
3.1 dry covering capacity—the area covered in “ft , 1 in. in
5.3 Engine Oil.
thickness/100 lb of dry cement” (m , 1 cm in thickness/100 kg
of dry cement) after the wet cement has been molded and dried
5.4 Trowel—A 16-in. (about 400-mm) rectangular plaster-
to constant weight in accordance with Section 6.
er’s trowel.
3.2 volume change upon drying—the percentage change in
5.5 Steel Rules—Steel rules 18 and 36 in. (about ⁄2 and 1 m)
volume of the wet molded cement that occurs when the dry
in length accurate to within ⁄64 in. (0.5 mm).
5.6 Depth Gage—A depth gage consisting of a rigid,
pointed rod approximately ⁄8 in. (3 mm) in diameter, fitted
This test method is under the jurisdiction of ASTM Committee C16 on Thermal
with a flat disk about ⁄2 in. (13 mm) in diameter which is
Insulation and is the direct responsibility of Subcommittee C16.31 on Chemical and
moved along the rod either by a sliding action or by means of
Physical Properties.
Current edition approved Sept. 1, 2016. Published September 2016. Originally
threads.
approved in 1941. Last previous edition approved in 2010 as C166 – 05 (2010).
DOI: 10.1520/C0166-05R16.
6. Sampling and Mixing
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
6.1 The cement shall be sampled and mixed in accordance
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. with Practice C163.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C166 − 05 (2016)
7. Procedure complete circulation of the atmosphere of the entire oven
chamber, preferably by fan or other forced circulation method.
7.1 Oil the inside surfaces of the mold well, or line them
with wax paper in order to prevent the cement from sticking to 7.7 After the dried specimen has been weighed, measure it
the sides and to permit convenient removal of the specimen.
for thickness, width, and length at the same locations at which
Then place the mixed cement in the mold. corresponding measurements were made before the specimen
was dried. These locations are indicated by the indentation
7.2 Trowel the cement in one layer and in two directions
marks made in the wet cement. Measure the thickness as
lengthwise of the mold without unnecessary compacting, until
described in 7.4. In order to prevent false thickness measure-
the surface is smooth and flush with the top edges of the mold.
ments on the dry specimen, due to the bottom surface of the
Sufficient wet cement shall be used to fill the mold when the
specimen having become warped in drying, remove the speci-
piece of wood or other suitable material is in place in the open
men from the mold and place a flexible steel rule so as to
end of the mold and in contact with the cement, in order to
conform to the bottom surface of the specimen at points where
make a square end and to prevent movement of the cement
the thickness is to be measured. Insert the point of the depth
after troweling is completed.
gage from the original top face until it touches the steel rule.
7.3 Measure the thickness at nine points on the top surface
of the sample as indicated in Fig. 1.
8. Calculations
7.4 Make the thickness measurements within an accuracy of
8.1 Values in U.S.
...

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: C166 − 05 (Reapproved 2010) C166 − 05 (Reapproved 2016)
Standard Test Method for
Covering Capacity and Volume Change Upon Drying of
Thermal Insulating Cement
This standard is issued under the fixed designation C166; 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 Wet covering capacity and volume change upon drying are often of major importance in the application of thermal insulating
cement. These properties can be easily determined at the same time that the determinations of dry covering capacity are made.
Therefore, the procedures for determining these three properties are covered together in this test method.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information
only.mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 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:
C163 Practice for Mixing Thermal Insulating Cement Samples
C168 Terminology Relating to Thermal Insulation
3. Terminology
2 2
3.1 dry covering capacity—the area covered in “ft , 1 in. in thickness/100 lb of dry cement” (m , 1 cm in thickness/100 kg of
dry cement) after the wet cement has been molded and dried to constant weight in accordance with Section 6.
3.2 volume change upon drying—the percentage change in volume of the wet molded cement that occurs when the dry cement
is mixed with the recommended amount of water, molded, and dried to constant weight in accordance with Section 6.
2 2
3.3 wet covering capacity—the area covered in “ft , 1 in. in thickness/100 lb of dry cement” (m , 1 cm in thickness/100 kg of
dry cement) when the cement is mixed with the recommended amount of water and molded in accordance with Section 6.
3.4 Definitions in Terminology C168 shall be considered as applying to the terms used in this test method.
4. Significance and Use
4.1 This test method is used to determine the wet covering and volume change upon drying of thermal insulating cement.
5. Apparatus
5.1 Mold—A rigid mold having inside dimensions of 1 by 8 by 30 in. (25.4 by 203 by 726 mm) with one end and one face open,
1 7
and a piece of wood or other suitable material 1 by 1 ⁄2 by 7 ⁄8 in. (25.4 by 38.1 by 200 mm) in dimensions for squaring up the
end of the test specimen toward the open end of the mold.
5.2 Wax Paper—Sheets of wax paper 8 by 30 in. (200 by 762 mm) in dimensions.
This test method is under the jurisdiction of ASTM Committee C16 on Thermal Insulation and is the direct responsibility of Subcommittee C16.31 on Chemical and
Physical Properties.
Current edition approved Sept. 1, 2010Sept. 1, 2016. Published November 2010September 2016. Originally approved in 1941. Last previous edition approved in 20052010
as C166 – 05.C166 – 05 (2010). DOI: 10.1520/C0166-05R10.10.1520/C0166-05R16.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C166 − 05 (2016)
5.3 Engine Oil.
5.4 Trowel—A 16-in. (about 400-mm) rectangular plasterer’s trowel.
1 1
5.5 Steel Rules—Steel rules 18 and 36 in. (about ⁄2 and 1 m) in length accurate to within ⁄64 in. (0.5 mm).
5.6 Depth Gage—A depth gage consisting of a rigid, pointed rod approximately ⁄8 in. (3 mm) in diameter, fitted with a flat disk
about ⁄2 in. (13 mm) in diameter which is moved along the rod either by a sliding action or by means of threads.
6. Sampling and Mixing
6.1 The cement shall be sampled and mixed in accordance with Practice C163.
7. Procedure
7.1 Oil the inside surfaces of the mold well, or line them with wax paper in order to prevent the cement from sticking to the
sides and to permit convenient removal of the specimen. Then place the mixed cement in the mold.
7.2 Trowel the cement in one layer and in two directions lengthwise of the mold without unnecessary compacting, until the
surface is smooth and flush with the top edges of the mold. Sufficient wet cement shall be used to fill the mold when the piece
of wood or other suitable material is in place in the open end of the mold and in contact with the cement, in order to make a square
end and to prevent movement of the cement after troweling is completed.
7.3 Measure the thickness at nine points on the top surface of the sample as indicated in Fig. 1.
7.4 Make the thickness measurements within an accuracy of 62 % by means of a depth gage. Carefully push the point rod of
the depth gage through the cement until it comes in contact with the bottom of the mold. Hold the rod constantly in a vertical
position and adjust the disk until its flat surface just comes into contact with the top surface of the cement. Secure the disk to the
pin before withdrawing the gage from the cement. Determine the thickness of the cement by measuring the distance from the flat
surface of the disk to the pointed end of the rod with a steel rule or by some other suitable scale. Do not fill the indentations in
the cement showing the points of me
...