ASTM D1865-89(1999)e1

Standard Test Method for Hardness of Mineral Aggregate Used on Built-Up Roofs

SCOPE
1.1 This test method covers the determination of hardness of all types of mineral surfacing for use on built-up roofs and is intended to provide an index of their ability to withstand physical breakdown in handling.  
1.2 This standard does not purport to address all of the safety problems, 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-Jan-1999
• Technical Committee: D08 - Roofing and Waterproofing
• Drafting Committee: D08.03 - Surfacing and Bituminous Materials for Membrane Waterproofing and Built-up Roofing

Relations

• Replaced By: ASTM D1865-89(2002) - Standard Test Method for Hardness of Mineral Aggregate Used on Built-Up Roofs
• Effective Date: 24-Nov-1989

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
e1
Designation: D 1865 – 89 (Reapproved 1999)
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
Hardness of Mineral Aggregate Used on Built-Up Roofs
This standard is issued under the fixed designation D 1865; 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.
e NOTE—Editorially switched from English dominant to SI dominant.
1. Scope on a suitable stand so that it can be rotated about an axis
perpendicular to the long dimension of the pipe.
1.1 This test method covers the determination of hardness of
5.2 Balance, 500-g (1 lb) capacity, sensitive to 0.01 % of the
all types of mineral surfacing for use on built-up roofs and is
capacity.
intended to provide an index of their ability to withstand
5.3 Sample Splitter, riffle-type.
physical breakdown in handling.
5.4 Sieves—A series of square-opening sieves, 8 in. in
1.2 The values stated in SI units are to be regarded as the
diameter, conforming to the requirements prescribed in Speci-
standard. The values given in parentheses are for information
fication E 11 and consisting of the following:
only.
Sieve Designation
1.3 This standard does not purport to address all of the
9.5-mm ( ⁄8 in. )
safety problems, if any, associated with its use. It is the
6.3-mm ( ⁄4 in.)
responsibility of the user of this standard to establish appro- 3.35-mm (No. 6 )
priate safety and health practices and determine the applica-
A solid collecting pan shall be fitted to the bottom of the
bility of regulatory limitations prior to use.
stack of sieves.
5.5 Mechanical Sieve Shaker, conforming to the require-
2. Referenced Documents
ments prescribed in Test Method D 451.
2.1 ASTM Standards:
D 75 Practice for Sampling Aggregates
6. Sampling
D 451 Test Method for Sieve Analysis of Granular Mineral
6.1 Sample aggregates received in bulk in accordance with
Surfacing for Asphalt Roofing Products
Practice D 75.
E 11 Specification for Wire-Cloth Sieves for Testing Pur-
6.2 For aggregates received in bags or small containers,
poses
select a number of bags or small containers at random
equivalent to the cube root of the total number in the shipment.
3. Summary of Test Method
3.1 Mineral aggregate is empirically evaluated for degree of
7. Procedure
breakdown into smaller pieces. The procedure calls for a
7.1 Fractionate the aggregate, previously dried at 110°C
sample, free of fines, to be dropped a distance of 1.2 m (4 ft )
(230°F) utilizing the riffle-type sample splitter, until a fraction
400 times while inside a standardized test apparatus.
is obtained that will permit the recovery, after hand sieving, of
about 227 g (0.5-lb) of aggregate passing through the 9.5-mm
4. Significance and Use
3 1
( ⁄8-in.) sieve and retained on the 6.3-mm ( ⁄4-in.) sieve.
4.1 This test method measures the resistance to physical
3 1
7.2 Place the 9.5-mm ( ⁄8-in. ) and 6.3-mm ( ⁄4-in. ) sieves
breakdown in handling of built-up roofing aggregates.
containing the 227 g (0.5-lb) sample on the mechanical sieve
shaker and agitate for 10 min to ensure complete removal of
5. Apparatus
the finer materials.
5.1 A 1.2-m (4-ft) length of clean 50-mm (2-in.) iron pipe
7.3 Weigh out 200 g (0.44 lb) of the aggregate retained on
fitted with a removable screw cap on both ends, and mounted
th
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