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Hoskin Scientific Limited
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Hoskin Scientific - Air Void Measurement

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Analyzing the air void content and distribution in hardened concrete is a key component when evaluating the susceptibility of concrete during freezing and thawing cycles. The HS-745T Air Voids Analysis System is used to facilitate the counting of microscopic air void content, frequency, spacing factor and paste-air ratio in concrete.

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  • Complies with ASTM C457 specications and MTO LS-431
  • Procedure A, The Linear Traverse Method
  • Procedure B, The Modied Point-Count Method

The HS-745T Air Voids Analysis System includes:
Shown with optional PC, video camera and viewing software.

  • High quality Nikon trinocular microscope with the option to add a video camera and viewing software to be used with a PC
  • Nikon ber optic illuminator produces 150 watts of high-intensity cold light illumination
  • Lamp life of over 1,000 hours
  • Proprietary design of the manual stage links both the X and Y axes in a single piece of metal for excellent rigidity and superior accuracy
  • Patented steel friction drive ensures smooth, backlash-free operation
  • 5 position counter assists in keeping count of parameters being analyzed

ASTM C457 describes sample preparation equipment for grinding and polishing a plane section of concrete prior to measuring the air void distribution with the use of a microscope. Hoskin Scientic can provide you with a complete turn key system which include all necessary items to perform the air-void determination of concrete.