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Drying Shrinkage - DSHR

This test procedure was employed in the Foresight Ceramic Database and now is available for those having an account at Insight-Live.com. Accumulating test data using the variables defined in these procedures enables us to create tools that enable you to compare the physical properties of materials and recipes.


Specify the % water content. This is normally based on plastic length, thus to calculate:

( plastic size - dry size ) / plastic size * 100

It is easiest to make bars with a 100mm mark. Then the shrinkage is just 100 minus the dry measurement.

For a comprehensive test to measure shrinkage and porosity, see the SHAB test.


VAL - Value (V)

Specify the % shrinkage from wet

Out Bound Links

  • (Tests) SHAB - Shrinkage/Absorption Test
  • (Glossary) Firing Shrinkage

    As kiln temperature increases bodies densify (particles pack closer and closer). As temperature continues to rise, some of the particles begin to melt and form a glass between the others that pulls them even closer. Some of the particles shrink themselves, kaolin is an example (in the raw state part...

  • (Typecodes) 5: BDT - Body Tests

In Bound Links

  • (Articles) The Physics of Clay Bodies

    Learn to test your clay bodies and recording the results in an organized way and understanding the purpose of each test and how to relate its results to changes that need to be made in process and recipe.

By Tony Hansen

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