Cut Sheet

Concrete Rod Hanger ASTM E488 Testing Report Number 15C299
December 11, 2015 Revised March 9, 2016 Page 1 of 7
C E L CONSULTING
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1. INTRODUCTION
The purpose of this testing program is provide tension and shear test results in normal weight
concrete for the L.H. Dottie Concrete Rod Hangers.
2. SCOPE OF TESTING
Tests were conducted according to ASTM E488-96. The program consisted of static tension
and shear tests at one embedment in 2000 and 4000 psi concrete strengths. All tests were
conducted with distance to the test supports of 2 times embedment per E488 Table 2 and with
sufficient distance to test member edges to preclude any influence on the results. The test
numbers, sizes and test quantities are provided in Table 1.
Table 1
Test Type & Concrete Strength
Threaded Rod Diameter, in & Test Quantities
1/4 3/8 1/2
Tension – 2000 psi 5 5 5
Tension – 4000 psi 5 5 5
Shear – 2000 psi 5 5 5
Shear – 4000 psi 5 5 5
3. TEST SPECIMENS
3.1 Concrete Rod Hanger Description: L.H. Dottie Concrete Rod Hangers are self-tapping
screw-type anchors designed to be installed in holes predrilled using normal size ANSI
carbide bits. The embedded ends are hardened with configuration suitable for cutting threads
in a predrilled concrete hole. The exposed ends have a hex head configuration and are
threaded to accept threaded rods or fasteners. They are typically used for suspending various
mechanical and electrical equipment from the underside of elevated concrete slabs using
threaded rods or threaded fasteners.
Selected dimensions of rod hangers that were tested were measured and compared to the
product dimension drawings provided by the supplier. Three specimens of each were
measured and results averaged. The product drawings and results of the dimensional
measurements are provided in Appendix 1. Dimensions measured were in compliance with
the product dimension drawings
Mechanical and chemical tests were performed on the different rod hangers to verify these
properties. The requirements were found on product inspection sheets provided by the
supplier and were not listed on the dimension drawings provided. The raw material was