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The Boekel Cement Autoclave (Model
25515-016) provides an accelerated means of estimating delayed
expansion of Portland cement caused by hydration of CaO, MgO, or both
in accordance with procedures described in ASTM C151. In this
operation, changes in length of test bars of cement are measured after
being exposed to controlled steam pressure and temperature for a
prescribed period of time.
The Boekel Cement Autoclave consists of a welded steel cylinder with
bolted cover mounted on a sturdy supporting frame and enclosed in a
heat insulated metal housing. The unit is designed to handle pressure
in the 60-350 psi (0.4 -2.4 MPa) range and consists of steam vessel,
pressure regulator, pressure gauge (0-600psi), air vent valve, power
switches, and a safety pop valve set at 350 psi. A thermometer, wrench,
and a package of 5 gaskets are also included. Additional gaskets,
heating units, pressure gauges and safety pop valves are available as
replacement parts. To order, please contact your distributor or Boekel
Industries. |
