ASTM C567-00

Standard Test Method for Determining Density of Structural Lightweight Concrete

SCOPE
1.1 This test method provides procedures to determine the oven-dry and equilibrium densities of structural lightweight concrete.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3This 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: 09-Jul-2000
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: C09 - Concrete and Concrete Aggregates
• Drafting Committee: C09.21 - Lightweight Aggregates and Concrete

Relations

• Replaced By: ASTM C567-04 - Standard Test Method for Determining Density of Structural Lightweight Concrete
• Effective Date: 01-Jul-2004

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: C 567 – 00
Standard Test Method for
Determining Density of Structural Lightweight Concrete
This standard is issued under the fixed designation C 567; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 3.2 Definitions of Terms Specific to This Standard:
3.2.1 equilibrium density, n—the density as determined in
1.1 This test method provides procedures to determine the
8.2 reached by structural lightweight concrete after exposure to
oven-dry and equilibrium densities of structural lightweight
relative humidity of 50 6 5 % and a temperature of 23 6 2°C
concrete.
(73.5 6 3.5°F) for a period of time sufficient to reach constant
1.2 The values stated in SI units are to be regarded as the
mass.
standard. The values given in parentheses are for information
3.2.2 oven-dry density—the density as determined in 8.3
only.
reached by structural lightweight concrete after being placed in
1.3 This standard does not purport to address all of the
a drying oven at 110 6 5°C (230 6 9°F) for a period of time
safety concerns, if any, associated with its use. It is the
sufficient to reach constant mass.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
4. Summary of Test Method
bility of regulatory limitations prior to use.
4.1 This test method provides procedures for determining
2. Referenced Documents the oven-dry and equilibrium densities of structural lightweight
concrete, by calculation or measurement. The calculated oven-
2.1 ASTM Standards:
dry density is determined from batch quantities and volume of
C 31/C 31M Practice for Making and Curing Concrete Test
a given batch of concrete. The calculated equilibrium density is
Specimens in the Field
approximated by adding a fixed quantity to the oven-dry
C 88 Test Method for Soundness of Aggregates by Use of
density. Measured densities are obtained from determinations
Sodium Sulfate or Magnesium Sulfate
of the mass of cylindrical specimens after specified treatments.
C 125 Terminology Relating to Concrete and Concrete
Aggregates
5. Significance and Use
C 138 Test Method for Unit Weight, Yield, and Air Content
2 5.1 The measured or calculated equilibrium density of
(Gravimetric) of Concrete
2 structural lightweight concrete determines whether specified
C 172 Practice for Sampling Freshly Mixed Concrete
density requirements have been met. Unless otherwise speci-
C 192/C 192M Practice for Making and Curing Concrete
2 fied, determine equilibrium density by calculation using the
Test Specimens in the Laboratory
procedures in 9.2.
C 470/C 470M Specification for Molds for Forming Con-
2 5.2 Test Method C 138 shall be used to determine the
crete Test Cylinders Vertically
density of freshly mixed lightweight concrete for compliance
E 104 Practice for Maintaining Constant Relative Humidity
3 with concrete placement specifications.
by Means of Aqueous Solutions
NOTE 1—The fresh density of lightweight aggregate concrete is a
3. Terminology
function of mixture proportions, air content, water demand, and the
specific density and moisture content of the lightweight aggregate.
3.1 Terminology used in this test method is defined in
Decrease in density of a specific lightweight concrete is due to moisture
Terminology C 125.
loss that, in turn, is a function of aggregate moisture content, ambient
conditions, and the ratio of the surface area to the volume of the concrete
This test method is under the jurisdiction of ASTM Committee C09 on member. For most structural lightweight concretes, equilibrium density is
Concrete and Concrete Aggregates and is the direct responsibility of Subcommittee
approached at about 90 days. For most high-strength lightweight con-
C09.21 on Lightweight Aggregates and Concrete.
cretes, equilibrium density is approached at about 180 days. Extensive
Current edition approved July 10, 2000. Published September 2000. Originally
tests demonstrate that despite variations in the initial moisture content of
published as C 567 – 65 T. Last previous edition C 567 – 99a.
lightweight aggregate, the equilibrium density will be approximately 50
Annual Book of ASTM Standards, Vol 04.02.
kg/m (3.0 lb/ft ) greater than the oven-dry density.
Annual Book of ASTM Standards, Vol 11.03.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
C 567
6. Apparatus cylinder. Remove from the water and allow to drain for 1 min
by placing the cylinder on a 9.5-mm ( ⁄8-in.) or coarser sieve
6.1 Tamping Rod, Mallet, Measure, Balance, and Molds—
cloth. Remove visible water with a damp cloth, determine the
These shall conform to the requirements of Test Method C 138
mass and record as “B,” the mass of the saturated-surface-dry
and Specification C 470.
cylinder. Dry the cylinders with all surfaces exposed, in a
6.1.1 Measure—A 14-L (0.5-ft ) measure shall be the stan-
controlled humidity enclosure as described in 6.2 until the
dard (see Note 3).
mass of the specimen changes not more than 0.5 % (gain or
6.2 Controlled Humidity Enclosure—A room controlled at
loss) in successive determinations of mass 28 days apart.
50 6 5 % relative humidity and 23 6 2°C (73.5 6 3°F) or a
Determine the mass of the dried cylinders and record as “A,”
small chamber meeting the requirements of Practice E 104.
the mass of the dried cylinder. Calculate the equilibrium
6.3 Drying Oven—An oven of appropriate size capable of
density of the concrete from Eq 1 and 2.
maintaining a uniform temperature of 1106 5°C (230 6 9°F),
and an average evaporation rate of at least 25 g/h. Determine
E ~Density, kg/m ! 5 ~A 3 997! / ~B2C! (1)
m
evaporation rate in accordance with Test Method C 88.
E ~Density, lb/ft ! 5 ~A 3 62.3! / ~B2C!! (2)
m
7. Sampling, and Making, and Curing Test Specimens
where:
3 3
7.1 Sampling—Sample field-mixed concrete in accordance
E = measured equilibrium density, kg/m (lb/ft ,
m
with Practice C 172. A = mass of cylinder as dried, kg (lb),
7.2 Specimens for Determining Equilibrium Density and B = mass of saturated surface-dry cylinder, kg (lb), and
C = apparent mass of suspended-immersed cylinder, kg
Oven-dry Density—Determine the equilibrium density and
(lb).
oven-dry density on 150 by 300-mm (6 by 12-in.) concrete
cylinders.
8.3 Measurement of Oven-Dry Density—After 24 h but not
7.2.1 Make test cylinders in accordance with Practice
to exceed 32 h, remove the cylinders from the mold (see Note
C 192/C 192M or C 31/C 31M
...