What is light emitting concrete and the purpose to provide that concrete?
Basic differences PCC RCC Plain Cement Concrete R/f Cement Concrete It doesn’t carry ‘Steel’. It carries Steel. PCC is weak in tension loading while strong in compression loading. RCC is strong in both. PCC blasts on excessive loading & in an instant w/t giving any warning. RCC gives you enoughRead more
Basic differences
| PCC | RCC |
| Plain Cement Concrete | R/f Cement Concrete |
| It doesn’t carry ‘Steel’. | It carries Steel. |
| PCC is weak in tension loading while strong in compression loading. | RCC is strong in both. |
| PCC blasts on excessive loading & in an instant w/t giving any warning. | RCC gives you enough time to vacate the structure before collapse. |
| Plain Cement Concrete | R/f Cement Concrete | |
| Tension | Steel tendons
High tensile steel bars Included with tension |
Ordinary Mild Steel Deformed Bars
No tension included |
| Basic materials used | Min grade of concrete
Post-Tensioning → M30 Pre-Tensioning  → M40 to resist high stresses
High strength steel to transfer large prestressing force |
Min grade of concrete → M20
Steel                          → MS |
| Effectiveness of member | Entire section carries load | Does not carries load |
| Crack resistance | High
Cracks don’t occur under working loads |
Less |
| Wt & suitability | Light
Heavy loads & longer spans |
Heavy
Wt is more desired than steel |
| Equiments | Requires many specialized equiments
Pulling jack, Post-tensioning pump, Master wedges, Anchhor head & bearing |
Doesn’t involve specialized equiments. |
| Quality of steel reqd | 1/3rd of RCC
More strength & less c/s area |
More |
| Deflection | Very less | More |
| Load carrying capacity & Durability | More | Less |
| Shock resistance | More | Less |
| Yield | As high as 2100 N/mm2 | 200 – 300 N/mm2 |
| Testing | Testing of steel & concrete can be done while prestressing. | No way of testing the steel & concrete. |
| Cost | Economical for span of 10m – 18m.
As length of span gets ↑ Cost % ↑ C/s area of beam ↓ |
Economical for span < 9m. |
Kuldeep Singh
Light-emitting concrete involves the use of optical fibers within the concrete to form a mixture that emits light from the brighter side of the wall to the darker side. It is made up of concrete with relatively finer materials. Fine aggregates are actually quite fine, and the Nominal mean size of coRead more
Light-emitting concrete involves the use of optical fibers within the concrete to form a mixture that emits light from the brighter side of the wall to the darker side.
It is made up of concrete with relatively finer materials. Fine aggregates are actually quite fine, and the Nominal mean size of coarse aggregates isn’t exceeded 10 or 12 mm. 4% optical fibers are added in suck a way to create a kind of mesh with the fibers continuing from one face to the other, this carrying light from one facet of the other. The optical fibers very interestingly, act as the reinforcement in concrete and no steel is required.
The reduction in compressive strength is negligible, and hence, it is quite the architect’s favorite concrete.
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