Standard Specification For Lightweight Aggregates For Insulating Concrete PDF
Standard Specification For Lightweight Aggregates For Insulating Concrete PDF
Standard Specification For Lightweight Aggregates For Insulating Concrete PDF
This standard has been approved for use by agencies of the Department of Defense.
Copyright ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
1
C 332
TABLE 1 Grading Requirements for Lightweight Aggregates for Insulating Concrete
Size Weight Percent Passing Sieves
Designa- 19.0-mm 12.5-mm 9.5-mm 4.75-mm 2.36-mm 1.18-mm 600-m 300-m 150-m
tion (34-in.) (12-in.) (38-in.) (No. 4) (No. 8) (No. 16) (No. 30) (No. 50) (No. 100)
Group I
Perlite ... ... ... 100 85 to 100 40 to 85 20 to 60 5 to 25 0 to 10
VermiculiteA (Coarse) ... ... 100 98 to 100 60 to 100 30 to 85 2 to 45 1 to 20 0 to 10
Vermiculite (Fine) ... ... ... ... 100 85 to 100 35 to 85 2 to 40 0 to 10
Group II
Fine aggregate: ... ... 100 85 to 100 ... 40 to 80 ... 10 to 35 5 to 25
4.75-mm (No. 4) to 0
Coarse Aggregate: 100 90 to 100 40 to 80 0 to 20 0 to 10 ... ... ... ...
12.5 to 4.75-mm
(12-in. to No. 4)
9.5 to 2.36-mm (38-in. ... 100 80 to 100 5 to 40 0 to 20 ... ... ... ...
to No. 8)
4.75 to 2.36-mm (No. 4 ... ... 100 90 to 100 0 to 20 ... ... ... ...
to No. 8)
Combined Fine and
Coarse Aggregate:
12.5-mm (12-in.) to 0 100 95 to 100 ... 50 to 80 ... ... ... 5 to 20 2 to 15
9.5-mm (38-in.) to 0 ... 90 to 100 65 to 90 35 to 65 ... ... 10 to 25 5 to 15
100
A
Attention is directed to the need for adjustment in water content and air entrainment to achieve comparable oven-dry unit weights for the two gradings.
periodically. If the fineness modulus of the aggregate differs by Nominal Weight Weight of Test
more than 7 % from that of the sample submitted for accep- lb/ft3 (kg/m3) Sample, g
tance, the aggregate is subject to rejection, unless the supplier 5 to 15 (80 to 240) 50
demonstrates that it will produce concrete of the required 15 to 25 (240 to 400) 100
characteristics. 25 to 35 (400 to 560) 150
35 to 45 (560 to 720) 200
4.3 Unit WeightThe unit weight of lightweight aggregates 45 to 55 (720 to 880) 250
shall conform to the requirements shown in Table 2. 55 to 65 (880 to 1040) 300
4.3.1 Uniformity of Unit WeightThe weight of successive 65 to 70 (1040 to 1120) 350
shipments of lightweight aggregates shall not differ by more 5.1.2.2 Coarse AggregateThe sample shall be not less
than 10 % from that of the sample submitted for acceptance. than 0.1 ft3 (2830 cm3) of the material obtained in making the
unit weight determination.
5. Sampling and Testing for Aggregate Properties 5.1.3 Unit Weight (Loose)Test Method C 29/C 29M uti-
5.1 Sample lightweight aggregates and determine the prop- lizing the shoveling procedure described in Test Method
erties enumerated in this specification in accordance with the C 29/C 29M, except test the aggregate in an oven-dry condi-
following methods: tion.
5.1.1 SamplingPractice D 75, except sample bagged ma- 5.1.4 Fineness ModulusCalculate as described in Test
terials by riffling and then quartering. Method C 136.
5.1.2 GradingMethod C 136, except that when a me-
chanical sieving device is used, the sieving time shall be 5 min 6. Test Methods for Insulating Concrete Properties
and the following modification shall apply:
6.1 Determine the unit weight and thermal conductivity of
5.1.2.1 Fine aggregateThe weight of the test sample shall
the concrete in accordance with the following methods:
be in accordance with the following table:
6.1.1 Specimen PreparationPrepare three specimens for
each type of test, applying the same composition and fabrica-
TABLE 2 Unit Weight Requirement for Lightweight Aggregates of tion procedure as is proposed for use. Moist-cure the speci-
Insulating Concrete mens for 7 days and then remove them from the moist room
Dry Loose Weight and store at a temperature of 73.4 6 3F (23 6 1.7C) and at
Size Designation lb/ft3 (kg/m3) a relative humidity of 50 6 5 % until the time of test. Dry the
Min Max specimens at the age of 28 days in an oven at 230 6 18F (110
Group I: 6 10C) and weigh them at 24-h intervals until the loss in
Perlite 7.5 (120) 12 (196) weight does not exceed 1 % in a 24-h period.
Vermiculite 5.5 (88) 10 (160)
Group II: 6.1.2 Unit WeightDetermine the unit weight from speci-
Fine aggregate ... 70 (1120) mens each of which has a volume of not less than 0.1 ft3 (2 L).
Coarse aggregate ... 55 (880) Determine the weight and dimensions of the oven-dry speci-
Combined fine and coarse ... 65 (1040)
aggregate mens and compute the volume and the weight per cubic foot
(or cubic metre) from the average data obtained.
2
C 332
6.1.3 Thermal ConductivityDetermine the thermal con- 7.5 The net weight of the contents shall be determined by
ductivity in accordance with Test Method C 177, except weighing the package or packages and deducting the weight of
prepare and cure the specimens in accordance with 6.1.1. The the container.
dimensions of the specimens shall be as required for the testing 7.6 The volume of the contents in the package shall be
equipment available. Report the details of the composition and calculated by determining the weight of the contents of the
fabrication procedure used in preparing the specimens. package and then obtaining the weight per cubic foot (or cubic
metre) of the aggregate, from an average weight package of the
7. Rejection and Rehearing samples selected in 7.4.2, by the procedure given in Test
7.1 Material that fails to conform to the requirements of this Method C 29/C 29M and then dividing the weight of the
specification is subject to rejection. Rejection shall be reported contents of the bag by the weight per cubic foot (or cubic
to the producer or supplier promptly and in writing. In case of metre) of aggregate.
dissatisfaction with the result of the test, the producer or
supplier shall make claim for a rehearing. 8. Certification
7.2 The purchaser of materials covered by this specification 8.1 When specified in the purchase order or contract, a
shall have the option of evaluating these materials for rejection producers or suppliers certification shall be furnished to the
by either minimum weight or approximate volume as stated. purchaser that the material was manufactured, sampled, tested,
7.3 Individual packages are subject to rejection when: and inspected in accordance with this specification and has
7.3.1 The contents, on a weight basis, are 5 % less than that been found to meet the requirements. When specified in the
indicated on the package, or purchase order or contract, a report of the test results shall be
7.3.2 The contents, on a volume basis, are 10 % less than furnished.
that indicated on the package.
7.4 The entire shipment is subject to rejection. 9. Packaging and Package Marking
7.4.1 On a weight basis when the average contents of two 9.1 When lightweight aggregates covered by this specifica-
packages for each 100, but not less than 6 packages selected at tion are delivered in packages, the name of the manufacturer,
random, in any one shipment, are less than that indicated on the type of aggregate, and minimum weight and approximate
package. volume of the contents shall be plainly indicated thereon.
7.4.2 On a volume basis when the average contents of two
packages for each 100, but not less than 6 packages selected at 10. Keywords
random, in any one shipment differ by more than 5 % from that 10.1 insulating concrete; lightweight aggregate; thermal
indicated on the package. properties
The American Society for Testing and Materials takes no position respecting the validity of any patent rights asserted in connection
with any item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any such
patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and
if not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards
and should be addressed to ASTM Headquarters. Your comments will receive careful consideration at a meeting of the responsible
technical committee, which you may attend. If you feel that your comments have not received a fair hearing you should make your
views known to the ASTM Committee on Standards, at the address shown below.
This standard is copyrighted by ASTM, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the above address or at
610-832-9585 (phone), 610-832-9555 (fax), or service@astm.org (e-mail); or through the ASTM website (www.astm.org).