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To create a construction joint in a raft foundation, first ensure that the concrete surface is properly prepared and cleaned to promote good bonding. Next, place a formwork or a jointing strip at the desired location, ensuring it is level and aligned with the rest of the foundation. After the initial concrete is poured and has cured sufficiently, the joint area should be treated with a bonding agent before pouring the next batch of concrete to ensure a strong bond between the two sections. Finally, monitor the joint for any potential movement or cracking as the foundation settles.
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Can you make horizontal casting joint in concrete raft foundation thickness 3.5 m?
Sure you can, vertical and horizontal construction joints are allowed in the Raft with depth of 3.00 meters and above in hot countries , to avoid differential temprature between the core of cast and concrete temperature at the time of cast, the recommended depth should not exceed 1.5 with temperature control sensors and proper immediate curing
Why a pile raft foundation?
If the soil is so lose that it cant hold the building even with pile foundation. So, piled raft foundation is used which make the building to float like a boat. That obeys Archimedes' principle-it is buoyed up by the weight of the earth displaced in creating the foundation.
Difference between raft and mat foundation?
The raft will help to avoid any settlement that would occur to strip the foundation. The mat is just placed there to avoid slipping.
How can you calculate for 1 cubic concrete steel requirement for raft foundation?
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What is a raft foundation?
1. Excavation of the soil up to required depth.2. Ramming the foundation bed.3. Cutting the concrete over the reinforcement.4. Laying the reinforcement over the the foundation bed.5. Pouring the cement concrete over the reinforcement.
What are details of construction joint in raft foundation 1.2 mt deep?
The construction joint should be placed where there is the least amount of impact. This could include the slabs. These types of foundations are used in the United Kingdom and Australia.
What is the approved location of the construction joints in the raft foundation?
The best location to set the construction joint is less shear force impact. e.g:In slabs;it is better to locate between the supports.
Procedures in constructing a raft foundation?
Raft foundation is reinforced concrete slab that is supported on a compacted hardcore base that is bigger than the raft. The procedures in construction the foundation involves checking the soil properties, and making the edge of the raft stepped to make a toe so the outer leaf of the wall goes below ground. The slab is reinforced with steel, a radon barrier is added, and a damp proof course is put in.
Can you make horizontal casting joint in concrete raft foundation thickness 3.5 m?
Sure you can, vertical and horizontal construction joints are allowed in the Raft with depth of 3.00 meters and above in hot countries , to avoid differential temprature between the core of cast and concrete temperature at the time of cast, the recommended depth should not exceed 1.5 with temperature control sensors and proper immediate curing
What is a raft beam?
The perimeter beam around the edge of a raft foundation.
What are the advantages and disadvantages of raft foundation?
The main advantage of a raft foundation is that it is more economical. Another advantage is that it requires little excavation. The disadvantages of raft foundations are that there is a greater potential for erosion, and they require specific treatments to bear a load.
Why a pile raft foundation?
If the soil is so lose that it cant hold the building even with pile foundation. So, piled raft foundation is used which make the building to float like a boat. That obeys Archimedes' principle-it is buoyed up by the weight of the earth displaced in creating the foundation.
What are the disadvantages of raft foundation?
disvantages of a narrow strip foundation
What is a rafter foundation?
It are a Afrikaans way of saying Raft Foundation.
What are the types of raft foundations?
Types of raft foundation are 1. Solid slab raft 2. Beam and slab raft 3. Cellular rafts
What is the difference between a raft foundation and a mat foundation?
They r the same. There is no difference.
Difference between raft and mat foundation?
The raft will help to avoid any settlement that would occur to strip the foundation. The mat is just placed there to avoid slipping.
