log10 - The common logarithm, also known as the base-10 logarithm or the decimal logarithm, is a mathematical function that is the inverse of the exponential function., log10(Number)

Variables Used

Shrinkage Strain - Shrinkage Strain is the value for strain caused due to shrinkage in concrete.
Age of Concrete - (Measured in Second) - Age of Concrete is the time elapsed since it was poured in place and left to set.

STEP 1: Convert Input(s) to Base Unit

Age of Concrete: 28 Day --> 2419200 Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

ε_sh = 0.002/(log10(t+2)) --> 0.002/(log10(2419200+2))

Evaluating ... ...

ε_sh = 0.000313299298330934

STEP 3: Convert Result to Output's Unit

0.000313299298330934 --> No Conversion Required

FINAL ANSWER

0.000313299298330934 ≈ 0.000313 <-- Shrinkage Strain

(Calculation completed in 00.020 seconds)

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Home » Engineering » Civil » Structural Engineering » Prestressed Concrete » Losses of Prestress » Loss due to Anchorage Slip, Friction Loss and General Geometric Properties » Losses due to Creep and Shrinkage » Shrinkage Strain for Post tensioning

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Created by Chandana P Dev

NSS College of Engineering (NSSCE), Palakkad

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Coorg Institute of Technology (CIT), Coorg

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< Losses due to Creep and Shrinkage Calculators

Loss in Prestress given Creep Strain

LaTeX Go Loss in Prestress = Modulus of Elasticity of Steel Reinforcement*Ultimate Creep Strain

Creep Coefficient given Creep Strain

LaTeX Go Creep Coefficient of Prestress = Ultimate Creep Strain/Elastic Strain

Elastic Strain given Creep Strain

LaTeX Go Elastic Strain = Ultimate Creep Strain/Creep Coefficient of Prestress

Ultimate Creep Strain

LaTeX Go Ultimate Creep Strain = Creep Coefficient of Prestress*Elastic Strain

Shrinkage Strain for Post tensioning Formula

LaTeX Go

Shrinkage Strain = 0.002/(log10(Age of Concrete+2))
ε_sh = 0.002/(log10(t+2))

What is Shrinkage in Concretes?

Shrinkage of concrete is defined as the contraction due to loss of moisture. We know that concrete shrinks in volume when it dries up. This volume reduction takes place in the form of reduction of all dimensions. The shrinkage of concrete in prestressed members results in a shortening of tensioned wires and hence contributes to the loss of stress. The shrinkage of concrete is influenced by the type of cement, aggregates and the method of curing used.

How to Calculate Shrinkage Strain for Post tensioning?

Shrinkage Strain for Post tensioning calculator uses Shrinkage Strain = 0.002/(log10(Age of Concrete+2)) to calculate the Shrinkage Strain, The Shrinkage Strain for Post tensioning is defined as the approximate value for the strain occurred due to shrinkage in concrete which depends on the age of concrete. Shrinkage Strain is denoted by ε_sh symbol.

How to calculate Shrinkage Strain for Post tensioning using this online calculator? To use this online calculator for Shrinkage Strain for Post tensioning, enter Age of Concrete (t) and hit the calculate button. Here is how the Shrinkage Strain for Post tensioning calculation can be explained with given input values -> 0.000313 = 0.002/(log10(2419200+2)).

FAQ

What is Shrinkage Strain for Post tensioning?

The Shrinkage Strain for Post tensioning is defined as the approximate value for the strain occurred due to shrinkage in concrete which depends on the age of concrete and is represented as ε_sh = 0.002/(log10(t+2)) or Shrinkage Strain = 0.002/(log10(Age of Concrete+2)). Age of Concrete is the time elapsed since it was poured in place and left to set.

How to calculate Shrinkage Strain for Post tensioning?

The Shrinkage Strain for Post tensioning is defined as the approximate value for the strain occurred due to shrinkage in concrete which depends on the age of concrete is calculated using Shrinkage Strain = 0.002/(log10(Age of Concrete+2)). To calculate Shrinkage Strain for Post tensioning, you need Age of Concrete (t). With our tool, you need to enter the respective value for Age of Concrete and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Shrinkage Strain?

In this formula, Shrinkage Strain uses Age of Concrete. We can use 1 other way(s) to calculate the same, which is/are as follows -

Shrinkage Strain = Loss in Prestress/Modulus of Elasticity of Steel Reinforcement

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