Prestressed concrete is an extremely strong resource however it is very tensile meaning once under its maximum pressure it will begin to crack. As the name suggests, prestressed concrete is a form of concrete were internal stresses are induced to increase the strength of the material and increase its load capacity.

To create prestressed concrete, the steel inside must be something called pre-tensioned. When using pre-tensioning, steel is stretched out before the placing of the concrete. This entails steel tendons set between two abutments, then getting stretched to roughly 80% of their strength. The concrete then gets poured into moulds around them and cured. When the concrete is cured and at the right strength, the steel is released. The steel will try to get back to its original length, creating the tensile stress that becomes a compressive strength in the concrete.

 

The advantages of prestressed concrete include:

• The inherent compressive strength of concrete is used to its fullest.
• The special alloy steels used to form the prestressing tendons are used to their fullest.
• Tension cracks are eliminated, reducing the risk of the steel components corroding.
• Shear stresses are reduced.
• For any given span and loading condition a reduction in weight can be achieved from using a component with a smaller cross section.
• A composite member can be formed by joining individual precast concrete units together.

 

Prestressed options from Coote Engineering

T-Beam:

The T-Beam is a widely used product for the ground and first floors of residential buildings. Combining the T-Beam with in fill blocks, a solid floor can be installed without the need for supporting or the time consuming installation of timber joists.

The Coote Engineering Prestressed T-Beam Bed can be manufactured to any length, can accommodate up to 300 Tonne live load and is manufactured to the highest degree of quality to ensure that your final product is perfect.

The advantage of the Stress On Bed System is that there is no requirement for casting large abutments into your floor which prevents a lot of unnecessary and expensive groundwork.

Producing the T-Beams is easy and cost effective with a Prestressed T-Beam Bed from Coote Engineering. The product length can be set at the beginning by using a “spacer” to separate different lengths. It is also possible to cut beams after they have been manufactured to suit the length of particular jobs.

 

Lintel:

Prestressed Lintel Beds are a low cost and easy way to manufacture a load bearing lintel for the construction market.

The Coote Engineering Prestressed Lintel Bed can be manufactured to any length, can accommodate up to 300 Tonne live load and is manufactured to the highest degree of quality to ensure that your final product is perfect.

The advantage of the Stress on Bed System is that there is no requirement for casting large abutments into your floor which prevents a lot of unnecessary and expensive groundwork.

Producing the Lintels is easy and cost effective with a Prestressed Lintel Bed from Coote Engineering. The product length can be set at the beginning by using a “spacer” to separate different lengths.

 

Wall Panel:

We pride ourselves on designing and manufacturing one of the best wall panel beds available on the market.

With a high standard of build quality coupled with the usability of a versatile product, a Coote Engineering wall panel bed will give customers a quality product that will stand the test of time.

Available in up to a 300 Tonne load, Coote Engineering can supply a bed to any length. Standard sections come in 12m lengths but can be manufactured to shorter lengths to accommodate your required size.

The advantage of the Stress On Bed System is that there is no requirement for casting large abutments into your floor which prevents a lot of unnecessary and expensive groundwork.