ASTM C882/C882M-20 PDF Download

ASTM C882/C882M-20 is a standard test method that determines the bond strength of epoxy-resin systems used with Portland-cement concrete. It involves bonding two sections of Portland-cement mortar cylinders using the epoxy system and then determining the compressive strength of the composite cylinder. The test can be performed on hardened concrete bonded to either hardened or freshly-mixed concrete.

The standard specifies the apparatus required for mixing the Portland-cement mortar, including the specimen molds, tamper, and testing machine. The molds used should be in the form of right cylinders, and a dummy section made of a non-reactive material should be included in the testing setup. The testing machine should be in accordance with the specified requirements.

The standard emphasizes the importance of bond strength as the primary property of a bonding system for joining two regions of concrete. It also provides guidelines for laboratory conditions, materials, proportions, and procedures for mixing the Portland-cement mortar to ensure compliance with the standard requirements.

It's worth noting that the standard includes explanatory notes and footnotes, which provide additional information but are not considered as requirements of the standard.