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The corrosion-resistant stainless steel rods come in varying lengths and diameters. Gilson’s Tamping Rods are used in consolidation of fresh concrete specimens to test slump, air content and strength, and meet many AASHTO and ASTM International standards. The straight stainless steel rods have hemispherical tips.
HM-48A and HM-48 Tamping Rods are 24x5/8in (610x16mm) LxDia. An engraved measuring scale is marked in 1/4in increments on the HM-48, while the HM-48A model has no measurement markings. They are used in consolidating 6x12in (152x305mm) concrete cylinder specimens. The rods meet ASTM C143 and AASHTO T 119 standards for testing slump. They further conform to ASTM C31 for curing samples, and in testing air content of concrete as indicated in ASTM C173, ASTM C138 and AASHTO T 152.
HM-47 Tamping Rod is 12x3/8in (305x10mm) LxDia. It is required for testing in compliance with ASTM C31 and used to mold 4x8in (102x203mm) concrete cylinder specimens.
HM-63 is 18x3/8in (457x10mm) LxDia. It meets ASTM C31 for preparing 4x8in (102x203mm) concrete cylinder molds, as well as Canadian Standard CSA A23.2-3C.
Tamping rods also conform with other standards for preparing concrete specimens and slump tests. These include AASHTO M 205 and British Standard BS 1881.
HM-47: 12 x 0.375in (305 x 10mm), LxDia.
HM-48: 24 x 0.625in (610 x 16mm), LxDia.
HM-48A: 24 x 0.625in (610 x 16mm), LxDia.
HM-63: 18 x 0.375in (457 x 10mm), LxDia.
HM-48A: 4.0lbs (1.81kg)
HM-48: 3.0lbs (1.36kg)
HM-47: 2.0lbs (0.91kg)
HM-63: 1.0lbs (0.45kg)
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