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Concrete is a strong and durable building material made from a mixture of cement, sand, gravel, and water.
Concrete is commonly used in construction for foundations, walls, floors, and sidewalks.
It can be reinforced with steel bars to increase its strength and flexibility.
Different types of concrete, such as ready-mix and precast, are used for various construction projects.
Concrete can be colored, stamped, or polished f...
IS code for RCC is IS 456:2000
IS 456:2000 is the Indian Standard code for the design and construction of reinforced concrete structures
It covers the general requirements for the design and construction of RCC structures
The code provides guidelines for materials, design, construction, quality control, and maintenance of RCC structures
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Quantitative reasoning
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I applied via Naukri.com and was interviewed in Aug 2022. There were 2 interview rounds.
Answers to questions related to concrete, pre-stress concrete, reinforcement, stress, youngs modulus, and test of aggregates.
Concrete is a mixture of cement, sand, and aggregates. Pre-stressed concrete is a type of concrete where internal stresses are introduced before loading to improve its strength.
Reinforcement is the process of adding steel bars or mesh to concrete to improve its strength and durability.
Stress is t...
posted on 14 Jun 2022
I applied via Naukri.com and was interviewed before Jun 2021. There were 4 interview rounds.
....
Admixtures are substances added to concrete to enhance its properties. They can be classified into different types.
Water-reducing admixtures: reduce the amount of water needed for a given concrete mix
Retarding admixtures: delay the setting time of concrete
Accelerating admixtures: speed up the setting time of concrete
Air-entraining admixtures: introduce tiny air bubbles to improve workability and durability
Superplastici...
Mineral admixtures have several disadvantages in construction.
Mineral admixtures can affect the workability of concrete, making it more difficult to handle and place.
They may increase the setting time of concrete, leading to delays in construction.
Some mineral admixtures, such as fly ash, can have a negative impact on the strength and durability of concrete.
Mineral admixtures may introduce variability in concrete prope...
The water cement ratio is affected by the addition of admixture.
The water cement ratio is the ratio of the weight of water to the weight of cement in a concrete mix.
When an admixture is added, it can change the properties of the concrete mix, including the water cement ratio.
Some admixtures, such as water-reducing admixtures, can decrease the water cement ratio by allowing for a lower water content while maintaining wo...
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