ASTM D1865/D1865M-09(2023)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D1865/D1865M − 09 (Reapproved 2023)
Standard Test Method for
Hardness of Mineral Aggregate Used on Built-Up Roofs
This standard is issued under the fixed designation D1865/D1865M; 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 sample, free of fines, to be dropped a nominal distance of 1.2 m
[4 ft] 400 times while inside a standardized test apparatus.
1.1 This test method covers the determination of hardness of
all types of mineral surfacing for use on built-up roofs and is
4. Significance and Use
intended to provide an index of their ability to withstand
physical breakdown in handling.
4.1 This test method measures the resistance to physical
breakdown in handling of built-up roofing aggregates.
1.2 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in
each system may not be exact equivalents; therefore, each 5. Apparatus
system shall be used independently of the other. Combining
5.1 A 1.2 m [4 ft] length of clean 50 mm [2 in.] iron pipe
values from the two systems may result in nonconformance
fitted with a removable screw cap on both ends, and mounted
with the standard.
on a suitable stand so that it can be rotated about an axis
1.3 This standard does not purport to address all of the
perpendicular to the long dimension of the pipe.
safety concerns, if any, associated with its use. It is the
5.2 Balance, 500 g [1 lb] capacity, sensitive to 0.01 % of the
responsibility of the user of this standard to establish appro-
capacity.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
5.3 Sample Splitter, riffle-type.
1.4 This international standard was developed in accor-
5.4 Sieves—A series of square-opening sieves, 8 in. in
dance with internationally recognized principles on standard-
diameter, conforming to the requirements prescribed in Speci-
ization established in the Decision on Principles for the
fication E11 and consisting of the following:
Development of International Standards, Guides and Recom-
Sieve Designation
mendations issued by the World Trade Organization Technical
9.5 mm [ ⁄8 in.]
Barriers to Trade (TBT) Committee.
6.3 mm [ ⁄4 in.]
3.35 mm (No. 6)
2. Referenced Documents
A solid collecting pan shall be fitted to the bottom of the
2.1 ASTM Standards:
stack of sieves.
D75/D75M Practice for Sampling Aggregates
D451/D451M Test Method for Sieve Analysis of Granular
5.5 Mechanical Sieve Shaker, conforming to the require-
Mineral Surfacing for Asphalt Roofing Products ments prescribed in Test Method D451/D451M.
E11 Specification for Woven Wire Test Sieve Cloth and Test
Sieves
6. Sampling
3. Summary of Test Method
6.1 Sample aggregates received in bulk in accordance with
Practice D75/D75M.
3.1 Mineral aggregate is empirically evaluated for degree of
breakdown into smaller pieces. The procedure calls for a
6.2 For aggregates received in bags or small containers,
select a number of bags or small containers at random
This test method is under the jurisdiction of ASTM Committee D08 on Roofing
equivalent to the cube root of the total number in the shipment.
and Waterproofing and is the direct responsibility of Subcommittee D08.03 on
Surfacing and Bituminous Materials for Membrane Waterproofing and Built-up
Roofing. 7. Procedure
Current edition approved July 1, 2023. Published July 2023. Originally approved
7.1 Fractionate the aggregate, previously dried at 110 °C
in 1961. Last previous edition approved in 2017 as D1865/D1865M – 09 (2017).
DOI: 10.1520/D1865_D1865M-09R23.
[230 °F] utilizing the riffle-type sample splitter, until a fraction
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
is obtained that will permit th
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