short info

The J-Ring test methods provide a procedure to determine the passing ability of self-consolidation concrete mixtures.

Standard

ASTM C1621

Model

VSLIC-C208

Origin

Indian

Make/ OEM

VERTEX



  • OVERVIEW

  • SPECIFICATIONS

  • FEATURES

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OVERVIEW

The difference between the slump flow and j-ring flow is an indication of the passing ability of concrete. The least method is applicable for laboratory use in comparing the passing ability of different concrete mixture. It is also applicable in the field as a quality control test. It can also be used to investigate the resistance of SCC to segregation by comparing test results from two different portions of the sample. The j-ring test measures three parameters: flow spread, flow time, and blocking step. The j-ring flow spread indicates the restricted deformability of SCC due to the blocking effect of reinforcement bars and the flow time indicates the rate of deformation within a defined flow distance. The blocking step quantifies the effect of blocking.

SPECIFICATIONS

The equipment consists of the following replaceable parts:

  • VSLIC -C208A  :    Baseplate of size 1000mm X 1000mm 1NO.
  • VSLIC -C208B  :    Slump cone (100mm ID at a top X 200mm at a bottom X 300mm height) 1NO.
  • VSLIC -C208C  :    a straight rod of at least one flat side with a flexure less than 1 mm     1NO.
  • VSLIC -C208D  :    measuring scale 0-600 1NO.
  • VSLIC -C208E  :    Spirit level.     1NO.
  • VSLIC -C208F  :    stopwatch with accuracy of 0.1 second     1NO.

FEATURES

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