Pre-Stressed Concrete

There are 2 types of Pre-Stressed Concrete, 1 - Pre Tensioned 2 - Post Tensioned

• YES

• NO

When construction Pre-Tensioned Concrete, the concrete is cast AFTER the tendon is tensioned

• CORRECT

• INCORRECT

For Pre-Tensioned Concrete, the tendon is jack from both end

• CORRECT

• INCORRECT

For Post-Tensioned Concrete, the tendon are stressed from one end or both end

• CORRECT

• INCORRECT

The pictures shows

• Pre-Tensioned Concrete

• Post-Tensioned Concrete

Construction Method for Pre-Tensioning are

• 1. 1. Molding / Formwork
     2. Place Steel Tendon
     3. Tension Tendon

  2. 4. Pour Concrete
     5. Concrete Curing

  3. 6. Release Tendon

• 1. 1. Molding / Formwork
     2. Place Steel Tendon
     3. Pour Concrete
     4. Tension Tendon
     5. Concrete Curing

  2. 6. Release Tendon

• 1. 1. Create Pockets/ Ducts
     2. Place Steel Tendon
     3. Pour Concrete
     4. Tension Tendon
     5. Concrete Cured
     6. Anchored Tendon

  2. 6. Release Tendon

• 1. 1. Create Pockets/ Ducts
     2. Pour Concrete
     3. Concrete Cured
     4. Place Steel Tendon

  2. 4. Tension Tendon
     5. Anchored Tendon

  3. 6. Release Tendon

Construction Method for Post-Tensioning are

• 1. 1. Molding / Formwork
     2. Place Steel Tendon
     3. Tension Tendon

  2. 4. Pour Concrete
     5. Concrete Curing

  3. 6. Release Tendon

• 1. 1. Molding / Formwork
     2. Place Steel Tendon
     3. Pour Concrete
     4. Tension Tendon
     5. Concrete Curing

  2. 6. Release Tendon

• 1. 1. Create Pockets/ Ducts
     2. Place Steel Tendon
     3. Pour Concrete
     4. Tension Tendon
     5. Concrete Cured
     6. Anchored Tendon

  2. 6. Release Tendon

• 1. 1. Create Pockets/ Ducts
     2. Pour Concrete
     3. Concrete Cured
     4. Place Steel Tendon

  2. 4. Tension Tendon
     5. Anchored Tendon

  3. 6. Release Tendon

Advantages of Pre Stressed Concrete

• Increased Strength

• Reduce Cracking and Deflection

• Thinner Structure / Cross Section

• Low Initial Cost

There are 2 types of Post-Tensioning Concrete. They are _______
​

• Bonded and Unbonded

• Bound and Unbounded

• Grouted and Ungrouted

• Anchored and Unanchored