Cube Test Register

A pour-by-pour register of concrete cube results with acceptance to IS 456.

IS 456 Cl 16

Open Cube Test Register

Open it at /civiltechstudio/cube-test-register/app. Status: beta.

Quick start

Check four M25 pours against IS 456 acceptance: load the three-pour example, add a fourth pour with 28-day cubes of 30, 31.5 and 29 MPa, and read the verdict.

  1. Next to Examples, select Conforming M25. This sets Concrete grade to M25 and adds three pours, each with three 28-day cubes.
  2. Select Add pour. In the new row’s element box, type Slab L2.
  3. In 28-day cubes (MPa), type 30, 31.5, 29. In 7-day cubes (MPa), type 20, 21. Separate the cubes with commas.
  4. Leave Total quantity (optional) blank. That way the four-result group rule applies, not the small-pour rule.
  5. Select Run Acceptance. While Live is ticked, the result also updates as you type.

Codes and standards

  • IS 456:2000 Cl 16 and Table 11 (individual and 4-group acceptance), Cl 15.3–15.4, Table 8; IS 516 test method

Inputs

  • Grade, pours with their 7- and 28-day cube results, quantity, and the site standard deviation once established.

Outputs and exports

  • Individual-result and 4-consecutive-group acceptance, non-conformance flags, 7-day trend check.
  • Save and JSON export; no PDF report.

Limits

  • Acceptance is to IS 456; the country selector changes the cited references.