Concrete Curing Box Specifications

The specification is written to allow each method of curing to be a stand alone specification.

Concrete curing box specifications.

The specifier is to use aci 308 92 standard practice for. Lightweight portable up to 22 standard 6 x 12 152 x 305mm test specimens can be stored. Concrete cylinder curing boxes. C171 standard specification for sheet materials for curing concrete.

If the concrete design strength is 6 000 psi or greater the initial curing temperature must range from 68 78 degrees f. Lightweight perfa cure curing boxes maintain required initial curing temperatures of 60 to 80 f 16 to 27 c and provide portable storage and protection for concrete test specimens. H 2967 concrete curing box heating only. During initial curing the cylinders must be stored in a temperature range from 60 80 degrees f in an environment that prevents moisture loss for up to 48 hours.

E5 x combines e5 internal cure with e5 x steel twisted fibers provides the efficiency of curing with the strength of. H 2968 concrete curing box deluxe. Specimens should be shielded from direct sunlight or. Curing concrete test specimens curing of concrete test specimens is usually different from concrete placed during construction.

D2103 standard specification for polyethylene film and sheeting. Plastic construction with 14 gauge steel bottom rack bottom drain valve lockable lid preset temperature control 73 f 23 c maintained at 2 f 1 1 c dial thermometer and a capacity of 22 standard 6 in x 12 in 15 2 x 30 5 cm. Concrete curing boxes are sturdy lightweight boxes that maintain temperature conditions as specified in astm c31 and aashto t 23 standards. Curing boxes are a portable solution for protecting newly made concrete test specimens during the critical initial curing phase.

American society for testing and materials astm has developed two standards for making and curing concrete specimens. Provide data on curing compounds sheet materials and methods of securing sheet. C309 standard specification for liquid membrane forming compounds for curing concrete. Users simply plug in the unit and set the thermostat to the desired temperature.

Economy curing box has a 1 500 watt heater cooling by fresh water circulation only h 2970a concrete cylinders field curing chest. Section 1 shall be included with the selected sections. The specifier is to deter mine the desired results of the curing and select the appropri ate section or sections to achieve those results.