Rubber Tamper for Cube Molds is constructed of hard rubber with a Durometer Shore A Hardness of 80. It is required by certain specifications when consolidating mortar or grout specimens into smaller molds. Required standards are ASTM C87/87M, C91/91M, C109, C141, C311, C472, C579 and C942, and AASHTO T 106M.

Features:

Constructed of rubber with Shore A Durometer hardness of 80
Meets numerous ASTM/AASHTO standards

Included Items:

Rubber Tamper

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Product tags

Specifications

Attribute name	Attribute value
Product Dimensions	5.5 x 1 x 0.5in (139.7 x 25.4 x 12.7mm), WxDxH
Estimated Shipping Weight	1.0lb (0.45kg)

Product Q&A

Q: How are longer specimens extracted and the piston returned?

Specimens longer than 5in are extracted by repositioning the Adapter Ring after maximum piston travel, and the spring-loaded piston automatically returns to the start position when the release valve is opened.