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Which agencies in India are having a license to certify and calibrate construction testing equipments?
Tips_and_tricks
Any NABL certified laboratory can calibrate the equipments. You can find the list here List-Of-NABL-Accredited-Labs
Any NABL certified laboratory can calibrate the equipments.
You can find the list here
List-Of-NABL-Accredited-Labs
See lessWhat Reinforcements are used in the Process of Prestressing?
Tips_and_tricks
In prestressing, we use strands of steel usually called as tendons. They are made of high strength steel. However, there are other terms in pre stressing based on the size of the tendon. The following are the terms in an increasing order of size. Wire - small wire (single) Strand - 2 or more wires TRead more
In prestressing, we use strands of steel usually called as tendons. They are made of high strength steel. However, there are other terms in pre stressing based on the size of the tendon. The following are the terms in an increasing order of size.
- Wire – small wire (single)
- Strand – 2 or more wires
- Tendon – group of strands
- Cable – Group of tendons
- Bar – single bar – dia of 10 mm or more
See lessWhy should curing not be done by ponding and polythene sheets?
Tips_and_tricks
The disadvantages of ponding: Evaporation is high Constant monitoring Excess water is needed The initial work for ponding must be done However, it is a very simple process and doesn't need skilled labours, thus the disadvantages maybe overruled by that advantage. The disadvantages of polythene sheeRead more
The disadvantages of ponding:
However, it is a very simple process and doesn’t need skilled labours, thus the disadvantages maybe overruled by that advantage.
The disadvantages of polythene sheets:
However, this method if installed properly retains moisture inside the concrete for a longer period of time.
See lessWhat are the type of Cadding work in Wall and Roof?
Tips_and_tricks
Types of material used for roof Cladding : Fibreglass Plastic Fibre cement Copper Steel Types of material used for roof Cladding : Stone Brick Wood Fibre cement UPVC Metals Tiles Glass
Types of material used for roof Cladding :
Types of material used for roof Cladding :
- Stone
- Brick
- Wood
- Fibre cement
- UPVC
- Metals
- Tiles
- Glass
See lessWhich method gives accurate desired strength in RCC?
Tips_and_tricks
Weigh batching is usually preferred to volume batching. The main drawback of volume batching is that it doesn't account for the bulking of sand. Due to this bulking, the strength of concrete is compromised. Weigh batching produces a high quality of concrete than the volume batching.
Weigh batching is usually preferred to volume batching. The main drawback of volume batching is that it doesn’t account for the bulking of sand. Due to this bulking, the strength of concrete is compromised.
Weigh batching produces a high quality of concrete than the volume batching.
See lessWhat are the impurities added while manufacturing steel?
Tips_and_tricks
The major impurities added are Manganese, Nickel, Chromium, Vanadium, and Carbon. In addition to this, dissolved gases like Nitrogen and Oxygen are also added to maintain the quality of the steel.
The major impurities added are Manganese, Nickel, Chromium, Vanadium, and Carbon. In addition to this, dissolved gases like Nitrogen and Oxygen are also added to maintain the quality of the steel.
See lessWhat is membrane curing of concrete?
Tips_and_tricks
Membrane curing is a type of curing where a membrane is applied on the surface of the concrete to retain the moisture inside the concrete. It is mostly used in pavements. The membranes are of two types Wax type - ideal for concrete that won't be painted or tiled. Resin type - Ideal for all types ofRead more
Membrane curing is a type of curing where a membrane is applied on the surface of the concrete to retain the moisture inside the concrete. It is mostly used in pavements.
The membranes are of two types
However both the membranes are effective for a period of 28 days. i.e the curing period
See lessWhat is meant by Skin Reinforcement?
Tips_and_tricks
Skin reinforcement is the secondary side face reinforcement provided when the depth of the section exceeds 750 mm. As per IS 456, it is a minimum of 0.1% of the Gross CS area and should be provided equally on both the faces of the beam. This reinforcement is provided to To reduce tension cracks dueRead more
Skin reinforcement is the secondary side face reinforcement provided when the depth of the section exceeds 750 mm.
As per IS 456, it is a minimum of 0.1% of the Gross CS area and should be provided equally on both the faces of the beam.
This reinforcement is provided to
- To reduce tension cracks due to high depth
- To avoid torsional buckling
- To prevent buckling of shear reinforcement
See less