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9.16.4.2.(1)
ApplicationIntent
OS3
ObjectiveOS3 Safety in Use
Attribution
[F20,F80-OS3.1]
Application
Application 1: 
Topping courses on cast-in-place concrete floor slabs supported on ground or on granular fill which do not provide structural support for the superstructure, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
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Intent
Intent 1: 
To limit the probability of:
  • an inadequate compressive strength of concrete topping,
  • an inadequate hardness, and
  • excessive deterioration over time.
This is to limit the probability of uneven walking surfaces, which could lead to persons tripping or falling, which could lead to harm to persons.
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