Table of Contents
What is the difference between normal slab and PT slab?
ØNormal slab is reinforced concrete(RCC) structural element whereas post-tension slab is per-stressed concrete (PSC) structure. In Post tension slab the reinforcement is replaced with cables/ steel tendons. ØIt requires more formwork when compared with the flat slab.
What is a RCC slab?
Reinforced Cement Concrete (RCC) is a composite building material consisting of structural concrete reinforced with a reinforcing material like steel. The most common reinforcement used is steel, due to its complimentary properties and it is called steel reinforced cement concrete or simply Reinforced Cement Concrete.
What is the size of RCC slab?
The minimum RCC beam size should not be less than 9 ʺ × 9 ʺ or 225mm × 225mm with the addition of a 125mm slab thickness. The size of the columns depends on the total load on the columns. The minimum column size should not be less than 9 “x9”.
What is PT slab?
Post tension slab is a combination of conventional slab reinforcement and additional protruding high-strength steel tendons, which are consequently subjected to tension after the concrete has set. This hybridisation helps achieve the formation of a much thinner slab with a longer span devoid of any column-free spaces.
What is PT beam and slab?
Post-tensioned (PT) slabs are typically flat slabs, band beam and slabs or ribbed slabs. PT slabs offer the thinnest slab type, as concrete is worked to its strengths, mostly being kept in compression. Longer spans can be achieved due to prestress, which can also be used to counteract deflections.
What are the advantages of RCC?
Advantages of R.C.C.
- Strength : R.C.C. has very good strength in tension as well as compression.
- Durability : R.C.C.
- Mouldability : R.C.C.
- Ductility : The steel reinforcement imparts ductility to the R.C.C.
- Economy :
- Transportation :
- Fire Resistance :
- Permeability :
What is the minimum thickness of RCC slab?
Minimum Thickness of Slab The minimum thickness of the RCC slab is 4″ or 100mm, 3″ for sidewalk, 4″ for patios, 6″ for driveway, and minimum 4″ thick for parking. It will be restricted to 4 times the nominal size of aggregate.
Which is better RCC or PCC?
PCC cannot withstand tensile stress. RCC is used in most of civil work and main frames which will withstand all stress and heavy loads. But if you compare it in terms of money then PCC is much cheaper then RCC and PCC needs no formwork or temporary work so it is much cheaper as compared to RCC.
What are the different types of concrete?
The Types of Concrete
- Normal Strength Concrete. This concrete combines all the basic ingredients — concrete, sand and aggregate — using the 1:2:4 ratio.
- Plain or Ordinary Concrete.
- Reinforced Concrete.
- Prestressed Concrete.
- Precast Concrete.
- Lightweight Concrete.
- High-Density Concrete.
- Air-Entrained Concrete.
What’s the minimum thickness of a concrete slab?
What is the minimum thickness for concrete? A: Concrete is typically applied at a thickness of 2 inches or more, but the thicker it is, the stronger the slab will be. Four inches is most common for a slab. The thinner applications would include drives, walkways, slabs and footers, just to name a few.
What is the thickness of a house concrete slab?
A ground level slab is a large flat stretch of concrete, usually between 100 – 500mm thick which forms the foundation of your house.