Layer Coefficient of Surface Course using Structural Number Calculator

✖Structural Number for Surface Course can be described as the ability of the surface course that can withstand the axle loads.ⓘ Structural Number for Surface Course [SN₁]			+10% -10%
✖Actual Thickness can be described as the design thickness of various layers of the courses for the flexible payments.ⓘ Actual Thickness [D_n]			+10% -10%

✖Layer Coefficient can be represents the strength of the material, this is the primary variable that factors in the type of material you plan to use for each layer.ⓘ Layer Coefficient of Surface Course using Structural Number [a_n]

⎘ Copy

👎

Formula

✖

Layer Coefficient of Surface Course using Structural Number

Formula

`"a"_{"n"} = ("SN"_{"1"}/"D"_{"n"})`

Example

`"0.5"=("150mm"/"300mm")`

Calculator

LaTeX

Reset

👍

Download Highway and Road Formula PDF PDF Image

Layer Coefficient of Surface Course using Structural Number Solution

STEP 0: Pre-Calculation Summary

Formula Used

Layer Coefficient = (Structural Number for Surface Course/Actual Thickness)
a_n = (SN₁/D_n)
This formula uses 3 Variables

Variables Used

Layer Coefficient - Layer Coefficient can be represents the strength of the material, this is the primary variable that factors in the type of material you plan to use for each layer.
Structural Number for Surface Course - (Measured in Millimeter) - Structural Number for Surface Course can be described as the ability of the surface course that can withstand the axle loads.
Actual Thickness - (Measured in Millimeter) - Actual Thickness can be described as the design thickness of various layers of the courses for the flexible payments.

STEP 1: Convert Input(s) to Base Unit

Structural Number for Surface Course: 150 Millimeter --> 150 Millimeter No Conversion Required
Actual Thickness: 300 Millimeter --> 300 Millimeter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

a_n = (SN₁/D_n) --> (150/300)

Evaluating ... ...

a_n = 0.5

STEP 3: Convert Result to Output's Unit

0.5 --> No Conversion Required

FINAL ANSWER

0.5 <-- Layer Coefficient

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Civil » Transportation Engineering » Highway Engineering » Highway and Road » Structural Numbers for Flexible Pavements » Layer Coefficient of Surface Course using Structural Number

Credits

Created by M Naveen

National Institute of Technology (NIT), Warangal

M Naveen has created this Calculator and 500+ more calculators!

Verified by Himanshi Sharma

Bhilai Institute of Technology (BIT), Raipur

Himanshi Sharma has verified this Calculator and 800+ more calculators!

< 12 Structural Numbers for Flexible Pavements Calculators

Structural Number to Withstand Anticipated Axle Loads

Go Structural Number = Structural Number for Surface Course+Structural Number for Base Course+Structural Number for Subbase Course

Layer Coefficient for Subbase Course using Structural Number

Go Layer Coefficient = Structural Number for Subbase Course/(Actual Thickness Base Course Payment*Drainage coefficient)

Actual Thickness of Subbase Course given Structural Number

Go Actual Thickness Base Course Payment = Structural Number for Subbase Course/(Layer Coefficient*Drainage coefficient)

Drainage Coefficient of Subbase using Structural Number

Go Drainage coefficient = Structural Number for Subbase Course/(Layer Coefficient*Actual Thickness Base Course Payment)

Structural Number for Subbase Course

Go Structural Number for Subbase Course = (Layer Coefficient*Actual Thickness Base Course Payment*Drainage coefficient)

Drainage Coefficient for Base Course given Structural Number

Go Drainage coefficient = Structural Number for Base Course/(Layer Coefficient*Actual Thickness Base Course Payment)

Layer Coefficient of Base Course given Structural Number

Go Layer Coefficient = Structural Number for Base Course/(Actual Thickness Base Course Payment*Drainage coefficient)

Actual Thickness of Base Course given Structural Number

Go Actual Thickness Base Course Payment = Structural Number for Base Course/(Layer Coefficient*Drainage coefficient)

Structural Number for Base Course

Go Structural Number for Base Course = (Layer Coefficient*Actual Thickness Base Course Payment*Drainage coefficient)

Layer Coefficient of Surface Course using Structural Number

Go Layer Coefficient = (Structural Number for Surface Course/Actual Thickness)

Actual Thickness of Surface Course given Structural Number

Go Actual Thickness = (Structural Number for Surface Course/Layer Coefficient)

Structural Number for Surface Course

Go Structural Number for Surface Course = (Layer Coefficient*Actual Thickness)

Layer Coefficient of Surface Course using Structural Number Formula

Layer Coefficient = (Structural Number for Surface Course/Actual Thickness)
a_n = (SN₁/D_n)

What is structural number (SN)?

Structural Number (SN), which is an abstract value that expresses the structural strength of the overall pavement.

How to Calculate Layer Coefficient of Surface Course using Structural Number?

Layer Coefficient of Surface Course using Structural Number calculator uses Layer Coefficient = (Structural Number for Surface Course/Actual Thickness) to calculate the Layer Coefficient, Layer Coefficient of Surface Course using Structural Number represents the strength of the material, this is the primary variable that factors in the type of material you plan to use for each layer. Layer Coefficient is denoted by a_n symbol.

How to calculate Layer Coefficient of Surface Course using Structural Number using this online calculator? To use this online calculator for Layer Coefficient of Surface Course using Structural Number, enter Structural Number for Surface Course (SN₁) & Actual Thickness (D_n) and hit the calculate button. Here is how the Layer Coefficient of Surface Course using Structural Number calculation can be explained with given input values -> 0.5 = (0.15/0.3).

FAQ

What is Layer Coefficient of Surface Course using Structural Number?

Layer Coefficient of Surface Course using Structural Number represents the strength of the material, this is the primary variable that factors in the type of material you plan to use for each layer and is represented as a_n = (SN₁/D_n) or Layer Coefficient = (Structural Number for Surface Course/Actual Thickness). Structural Number for Surface Course can be described as the ability of the surface course that can withstand the axle loads & Actual Thickness can be described as the design thickness of various layers of the courses for the flexible payments.

How to calculate Layer Coefficient of Surface Course using Structural Number?

Layer Coefficient of Surface Course using Structural Number represents the strength of the material, this is the primary variable that factors in the type of material you plan to use for each layer is calculated using Layer Coefficient = (Structural Number for Surface Course/Actual Thickness). To calculate Layer Coefficient of Surface Course using Structural Number, you need Structural Number for Surface Course (SN₁) & Actual Thickness (D_n). With our tool, you need to enter the respective value for Structural Number for Surface Course & Actual Thickness 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 Layer Coefficient?

In this formula, Layer Coefficient uses Structural Number for Surface Course & Actual Thickness. We can use 2 other way(s) to calculate the same, which is/are as follows -

Layer Coefficient = Structural Number for Base Course/(Actual Thickness Base Course Payment*Drainage coefficient)
Layer Coefficient = Structural Number for Subbase Course/(Actual Thickness Base Course Payment*Drainage coefficient)

Home

FREE PDFs

🔍 Search