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Gilson Tamping Rods are used in consolidation of concrete specimens for slump, air content, and strength tests. Plated steel rods have hemispherical tips as required by specifications.
HM-48A and HM-48 Tamping Rods are used when forming 6x12in cylinder specimens and for many other tests are 24x5/8in (610x16mm), LxD. HM-48 model has imprinted measuring scale in 1/4in increments. HM-48A is plain with no markings.
HM-47 Small Tamping Rod is required when molding 4x8in concrete cylinder specimens, and are 12x3/8in (305x10mm), LxD.
HM-63 Long Tamping Rod is 18x3/8in (457x10mm) LxD and meets both Canadian and ASTM Standards for consolidation of 4x8in (102x203mm) concrete cylinders.
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