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What are the advantages and disadvantages of reinforcing and prestressing concrete?
Advantages of Pre-cast Concrete
- Pre-cast concrete slabs are usually the correct size as it is manufactured off site.
- Pre-cast concrete saves a lot of time on site as it is manufactured off site.
- Pre-cast concrete also saves a lot of space on site as pre-cast concrete is usually on site when required.
- Pre-cast concrete saves money in terms of labour on site as pre-cast concrete can usually be assembled by semi skilled operatives.
Disadvantages of Pre-cast Concrete
- Pre-cast concrete lacks design and dimension flexibility as the manufactures may only have fixed shapes and sizes.
- Pre-cast concrete may affect the construction programme as the delivery on site may not always be on time.
- Pre-cast concrete may incur addition financial costs as delivery on site may not always be on time.
- Pre-cast concrete allows for a very small margin for error as the incorrect dimensions of pre-cast concrete may result in changing the entire design.
What else can I help you with?
What is the definition of post tensioned concrete?
Post tensioning is the prestressing of a concrete member by tensioning the reinforcing tendons after the concrete has set
Minimum grade of concrete for prestressing?
M40
What has the author Hong Shik Kim written?
Hong Shik Kim has written: 'An investigation of prestressing steel beams' -- subject(s): Steel bars, Reinforcing bars, Prestressed concrete
What are the advantages and disadvantages of concrete mixer?
Advantages: - can mix the cement with aggregates easily. - also can save time. - less energy is needed.
What are the advantages and disadvantages of compacting concrete using a vibrator?
The main disadvantage of compacting concrete using a cement vibrator is the noise. The advantages of compacting concrete using a cement vibrator is to remove trapped air and excess water which then allows the concrete settle firmly.
What has the author A S Safier written?
A. S. Safier has written: 'The application of prestressing to improve the stability of precast concrete structures'
What is the difference between a concrete block and a brick block?
A concrete block is made from concrete, a brick block is made from brick. They are two different building materials. Both have their respective advantages and disadvantages.
What are the disadvantages of using calcium chloride in concrete?
One disadvantage of using calcium chloride in concrete is that it can lead to corrosion of reinforcing steel, which weakens the structure over time. Additionally, it can increase the rate of drying, potentially causing cracking and reducing the overall durability of the concrete.
What are the disadvantages of the concrete mixer?
Advantages: - can mix the cement with aggregates easily. - also can save time. - less energy is needed.
What are the advantages and the disadvantages and advantages of frame structures?
advantages of a frame structure: cheap strong disadvantages of a frame structure: expensive advantages of a shell structure: unique strong disadvantages of a shell structure: expensive
What is the advantages and disadvantages of pretensioning method of concrete?
pretensioning is the process of inducing reverse stresses to concrete prior to design loading so as to achieve slender sectins thereby reducing cost. disadvantages of pretensioning are losses due to slip, etc
What is full prestressing?
It is the one in which tensile stresses in the concrete are entirely obviated at working loads by having sufficiently high pre-stress in the member.
