Concrete is the result of mixing several materials in the form of cement, water, and aggregate. with a weight ratio of 44% crude aggregate mixture, 31% fine aggregate, 18% cement, and water 7%. after 28 days the concrete will reach the ideal strength of the so-called strong compressive characteristics. Strong compressive characteristics are voltages that have exceeded 95% of uniaxial compressive strength measurements taken from standard suppression tests, ie with a 15×15 cm cube, or a cylinder with a diameter of 15 cm and a height of 30 cm. The concrete used for prestressed concrete is a concrete that has a high compressive strength with a minimum f’c value of 30 MPa. In the meantime, we also recommend you to take a look at the excellent Floor Screed Essex.
Steel: steel material commonly used in the manufacture of prestressed concrete is as follows K
PC Wire, usually used for prestressing steel in prestressed concrete with a prewar system.
PC Strand, usually used for prestressing steel for prestressed concrete with the post-pull system.
PC BAR, usually used for prestressing steel in prestressed concrete with a prewar system.
Regular reinforcement, which is reinforcement that can be used for conventional concrete such as plain iron and screw iron
The Concrete Advantages of This Type
Prestressed concrete has several advantages over conventional concrete, such as:
Advantages in terms of technical:
The avoidance of open cracks in the area of attraction, so that prestressed concrete will be more resistant to corrosion.
Waterproof, good for projects close to the water.
Due to the formation of the opponent due to the prewashing prestressing force before the planned load works, then the final deflection after the planned load works will be smaller than the ordinary reinforced concrete.
Efficient because the dimensions of the cross-section of the structure will be smaller or slender since the entire cross-section is effectively used.
The amount of steel use is far less than the amount of weight of the reinforcing iron in conventional concrete construction.
Resistance to shear and resistance to torsion increases.