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Mix design is the process of determining the proportions of ingredients to create a concrete mix with desired properties.
Mix design involves selecting the appropriate materials such as cement, aggregates, and water.
The proportions of each material are determined based on the desired strength, workability, and durability of the concrete mix.
Testing is often conducted to ensure the mix meets specified requirements before
I applied via Recruitment Consulltant and was interviewed in Oct 2022. There were 3 interview rounds.
The required sizes of sieves for fine aggregate sieve analysis are typically 3/8", #4, #8, #16, #30, #50, #100, and pan.
3/8" sieve
#4 sieve
#8 sieve
#16 sieve
#30 sieve
#50 sieve
#100 sieve
Pan
Characteristic strength is the strength of a material below which not more than a specified proportion of test results are expected to fall. Target mean strength is the strength that a structure is designed to achieve.
Characteristic strength is a statistical value representing the lower tail of the strength distribution of a material.
Target mean strength is the strength that a structure is designed to achieve based on ...
M25 is a mix of concrete with a compressive strength of 25 MPa. The cube strength of M25 grade concrete should be 25 MPa.
M25 is a mix of concrete with a compressive strength of 25 MPa.
The cube strength of M25 grade concrete should be 25 MPa.
The mix proportion for M25 grade concrete is usually 1:1:2 (cement:sand:aggregate).
OPC cement is Ordinary Portland Cement, while PPC cement is Portland Pozzolana Cement.
OPC is made by grinding clinker with gypsum, while PPC is made by intergrinding clinker with fly ash and gypsum.
PPC has higher long-term strength and durability compared to OPC.
PPC is more environmentally friendly due to the use of fly ash as a partial replacement for clinker.
OPC is commonly used for general construction purposes, whi...
KEC International interview questions for designations
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posted on 20 Aug 2024
I applied via Referral and was interviewed in Jul 2024. There was 1 interview round.
Concrete is a versatile building material made of cement, water, and aggregates. It is used in construction for various structures.
Concrete is a composite material composed of cement, water, and aggregates like sand or gravel.
It is known for its strength, durability, and versatility in construction projects.
Concrete can be used for building foundations, roads, bridges, dams, and other structures.
It can also be used for...
Steel and concrete are commonly used materials in construction for their strength and durability.
Steel is used in construction for structural support, such as beams, columns, and reinforcement in concrete.
Concrete is used for foundations, walls, floors, and other structural elements.
Steel and concrete are often used together in buildings and infrastructure projects to create strong and durable structures.
Examples inclu...
I was interviewed in Sep 2023.
PEB material refers to pre-engineered building materials used in finishing construction projects.
PEB materials are commonly used in construction projects for their durability and cost-effectiveness.
Examples of PEB materials include steel beams, roofing sheets, wall panels, and insulation materials.
Quality control is essential in ensuring that PEB materials meet industry standards and specifications.
Inspecting PEB mater...
posted on 8 Apr 2024
I applied via Approached by Company and was interviewed in Oct 2023. There was 1 interview round.
The number of zones in a column depends on the specific context, such as the type of column being referred to (e.g. geographical, organizational, etc.)
The number of zones in a column can vary based on the purpose of the column
For example, a geographical column may have different zones representing regions or countries
An organizational column may have zones representing departments or teams
I applied via Walk-in and was interviewed in Sep 2023. There were 3 interview rounds.
The code of mix design refers to the specific set of guidelines and calculations used to determine the proportions of ingredients in a concrete mix.
The code of mix design provides a standardized approach to ensure the desired strength and durability of the concrete.
It takes into account factors such as the type of cement, aggregate properties, water-cement ratio, and admixtures.
Examples of mix design codes include the ...
Water absorption in bricks depends on various factors such as composition, porosity, and manufacturing process.
Water absorption in bricks is measured as a percentage of the weight of dry brick that absorbs water.
The water absorption rate of bricks can vary from 5% to 20% depending on their quality.
Bricks with higher water absorption rates are generally less durable and more prone to damage.
Factors affecting water absor...
The number of tests in bricks depends on various factors such as quality standards, intended use, and regulations.
The number of tests can vary based on the type of bricks (e.g., clay bricks, concrete bricks).
Common tests for bricks include compressive strength, water absorption, efflorescence, and dimensions.
Additional tests may be conducted to assess durability, thermal conductivity, and resistance to chemicals.
Testin...
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