Based on the thickness and the requirement of the topping slab steel reinforcement is provided.
Concrete floor topping thickness.
30mpa for light duty 40 mpa for medium duty and 50 mpa for heavy duty.
However most precast concrete planks will have a built in upwards camber.
However if you need to resurface damaged concrete a 1 inch layer is a good amount.
Floor top stg is a standard traffic grade single component shrinkage compensated self leveling floor topping and underlayment that may be pumped or poured.
Screed thickness should be approximately 25 mm but not less than 15 mm or more than 40 mm.
The minimum thickness of a monolithic topping at any part should be 20 mm.
The day before you place concrete wet down the surface and keep it wet until you place concrete but don t have any standing water on the slab during placement.
Floor top stg is specially designed to smooth out uneven rough or minor deteriorated interior concrete floors.
There aren t many reasons to have only a 1 inch thick concrete surface.
Laying of topping concrete.
Given that the floor is interior the cracks between the existing concrete and the trenches for plumbing and electrical probably won t move.
The amount of camber will usually depend on the length of the plank.
The old surface is prepared so that the new concrete will adhere then the new cement is added.
It is too thin to use as a flooring just by itself.
If no water absorption is seen then the topping concrete can be laid as done in normal process.
For bonded and unbonded concrete topping slab strength of concrete for concrete topping slab is governed by function of the slab.
Commonly placed topping slab is in the range of 50 100 mm.
Strike off the concrete topping with the vibratory screed.
The topping mix that you mentioned is ok.
The concrete topping used should have a maximum slump of 75 mm.
As defined above these are screeds and toppings that are applied at the time when the underlying concrete floor is placed.
When a topping slab is used over precast members aci 117 90 standard specifications for tolerances for concrete construction and materials allows up to a 3 4 inch offset of top surfaces of adjacent elements in an erected position.