ASTM C511-06
(Specification)Standard Specification for Mixing Rooms, Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the Testing of Hydraulic Cements and Concretes
Standard Specification for Mixing Rooms, Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the Testing of Hydraulic Cements and Concretes
ABSTRACT
This specification includes the requirements for mixing rooms where paste and mortar specimens are prepared and for moist cabinets, moist rooms, and water storage tanks where paste, mortar, and concrete specimens are stored; intended for use in the testing of hydraulic cements and concretes. The system shall be equipped with a temperature recorder and a reference temperature measuring device that are to be placed practically near to each other. The air and mixing water temperatures and the relative humidity in the cement mixing room shall be maintained at specific values. Moist cabinets and moist rooms shall be constructed of durable materials with tight-fitting doors or windows for all openings. Air in moist cabinet or moist room shall be saturated with moisture in order to provide specified storage conditions and air temperature shall be controlled with provisions made for heating, cooling, or both. The specified relative humidity in these systems shall be maintained by the use of one or more fog sprays, water sprays, or curtains of water on the inner walls. Water storage tanks shall be constructed of non-corroding materials with provisions for automatic control of water temperature. The water in a storage tank shall be saturated with calcium hydroxide to prevent leaching.
SCOPE
1.1 This specification includes requirements for mixing rooms where paste and mortar specimens are prepared; and for moist cabinets, moist rooms, and water storage tanks where paste, mortar, and concrete specimens are stored.
1.2 Values in SI units shall be obtained by measurement in SI units or by appropriate conversion, using the Rules for Conversion and rounding given in Standard IEEE/ASTM SI 10, of measurements made in other units.
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: C 511 – 06
Standard Specification for
Mixing Rooms, Moist Cabinets, Moist Rooms, and Water
Storage Tanks Used in the Testing of Hydraulic Cements
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and Concretes
This standard is issued under the fixed designation C 511; 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* 3.1.3 moist room, n—a “walk-in” storage facility with
controlled temperature and relative humidity, commonly called
1.1 This specification includes requirements for mixing
a fog room when the prescribed relative humidity is achieved
rooms where paste and mortar specimens are prepared; and for
by the atomization of water.
moist cabinets, moist rooms, and water storage tanks where
paste, mortar, and concrete specimens are stored.
4. Requirements for Cement Mixing Rooms
1.2 Values in SI units shall be obtained by measurement in
4.1 The temperature of the air in the vicinity of the mixing
SI units or by appropriate conversion, using the Rules for
slab, molds, and base plates shall be maintained at 23.0 6 4.0
Conversion and rounding given in Standard IEEE/ASTM SI
°C and at a relative humidity of not less than 50 %.
10, of measurements made in other units.
4.2 The temperature of the mixing water used to prepare
1.3 This standard does not purport to address all of the
cement paste and mortar specimens shall be 23.0 6 2.0 °C.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5. Temperature Measuring Devices
priate safety and health practices and determine the applica-
5.1 Reference Temperature Measuring Device—used to
bility of regulatory limitations prior to use.
verify the temperature recorder, must be accurate and readable
to 0.5 ºC. A copy of the certificate or report which verifies the
2. Referenced Documents
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accuracy shall be available in the laboratory.
2.1 ASTM Standards:
C51 Terminology Relating to Lime and Limestone (as used
NOTE 1—The ice-point method described in Test MethodE77 may be
by the Industry) used to ensure that no damage to the reference thermometer has occurred
during shipping.
E77 Test Method for Inspection and Verification of Ther-
mometers
5.2 Temperature Recorder—shall record temperatures every
IEEE/ASTM SI 10 Standard for Use of the International
15 min or less and shall be accurate and readable to 1 ºC. The
System of Units (SI): The Modern Metric System
data fromthe recorder shall beevaluated at a minimumof once
each week. A record of this evaluation documenting the date
3. Terminology
checked, a confirmation that the data is within the required
3.1 Definitions:
temperature range, and the name of the individual performing
3.1.1 mixing room, n—a room with controlled temperature
this evaluation shall be maintained in the laboratory. (Note 2)
and relative humidity where cement paste and mortar speci-
NOTE 2—This requirement may be satisfied by an initialed and dated
mens are prepared.
temperature recorder chart. Brief changes in the temperature due to door
3.1.2 moist cabinet, n—a compartmented storage facility of
openings should be ignored.
moderate dimensions with controlled temperature and relative
5.2.1 The temperature recorder shall be verified at least
humidity.
every six months or whenever there is a question of accuracy.
5.2.1.1 For moist cabinets and rooms, position the reference
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This specification is under the jurisdiction of ASTM Committee C01 on
temperature measuring device in a readable position in air as
Cement and is the direct responsibility of Subcommittee C01.95 on Coordination of
near as practical to the temperature recorder probe. Keep the
Standards.
door closed for at least 5 min prior to taking readings. Record
Current edition approved Nov. 1, 2006. Published November 2006. Originally
approved in 1968. Last previous edition approved in 2005 as C 511 – 05. the temperature readings of both the temperature recorder and
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
the reference temperature measuring device. When taking
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
these readings, the reference temperature measuring device
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
*ASummary 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.
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C511–06
shallremaininthemoistcabinetorroomandreadimmediately 6.3.1 General—The walls of a moist roo
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