> STRUCTURE BEAM

How To Build Concrete Beam is not that complicated, Beam Reinforcement Concrete is made up of main reinforcement and reinforcement reinforcement. The main reinforcement works to carry the load, while the reinforcement reinforcement works to determine the position and size of the main reinforcement dimension. The beam usually consists of four main reinforcement bars.

For high load loads, reinforcement will be specified in the structural plan. The beam is also a horizontal component that carries roof, floor, and wall loads as well as live load. It suppresses the load by overcoming bending, shear and torque (Torsion). Sometimes the beam acts as a fastener.

Formwork for Ground Beam

1. Made of 1 ”x 2” wood and 12mm plywood.

2. The shape box should be constructed according to the size and height specified in the plan.

3. Its construction must be strong and strong to withstand vibration during concrete compaction work.

4. Make sure there is no leakage on the parts and connections of the shape box to avoid the loss of concrete water that can cause honey combing.

5. Once the formwork installation is complete, hardening work is carried out to ensure the surface level of the formwork is flat and smooth.

6. The plywood surface should be rubbed with black oil first so that the concrete that is inserted does not stick to the formwork.

Reinforcement Installation

1. Before mounting the reinforcement, the formwork should be checked in terms of size, verticality, alignment, rigidity, cleanliness, prob and level.

2. The reinforcement that is ready to be formed and fastened will be inserted into the formwork.

3. It can happen either before, during, or after formwork is built.

4. Block spacer (tofu) will be installed once during installation of reinforcement into formwork.

5. The thickness of the block spacer is equal to the thickness of the concrete cover as required in the structural plan.

6. The size of reinforcement used for the roof beam is usually different from the size of the ground beam reinforcement.

Concrete casting

1. The ready-made concrete will be put into reinforced formwork.

2. It should be noted that prior to the concrete removal, reinforcement mounting should be carefully evaluated such as size, brand, grade, lapping, concrete cover, link spacing and number.

3. Once the concrete has been poured, the work of compaction, the vibration of the concrete should be done using a vibraror machine to ensure that no air space is left in the concrete mix. Manual methods can also be used by fitting iron rods in concrete mixing.

4. This will produce more dense concrete.

5. Otherwise, there will be trapped air spaces and will result in hollow. This can result in fragile concrete structures being weak.

6. The concrete surface should be leveled during casting and the surface must be leveled to prevent material separation.

Concrete preservation

When water is mixed with cement, reactions occur which cause the cement to freeze and harden. Water is sufficient for the initial chemical reaction only, if the water is low during cement hardening, the concrete will not reach its maximum strength.

When concrete is placed, the water content is quickly lost through the evaporation process if no immediate action is taken. The action to prevent water loss from concrete is called concrete preservation. Curing is an act of preserving concrete after it is removed and compacted until it reaches the desired concrete strength using water.

The purpose of preservation

1. Ensure the required compression strength.

2. Avoid sudden loss of moisture on concrete.

3. Prevent cracks on the concrete surface.

4. To allow the concrete to remain in the wet condition for as long as possible so that the hardening process runs smoothly to the maximum strength.

5. Avoid concrete damaged by cold weather or weather.aterial separation.