Actual Thickness of Surface Course given 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%
✖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 [a_n]			+10% -10%

✖Actual Thickness can be described as the design thickness of various layers of the courses for the flexible payments.ⓘ Actual Thickness of Surface Course given Structural Number [D_n]

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Actual Thickness of Surface Course given Structural Number Solution

STEP 0: Pre-Calculation Summary

Formula Used

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

Variables Used

Actual Thickness - (Measured in Millimeter) - Actual Thickness can be described as the design thickness of various layers of the courses for the flexible payments.
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.
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.

STEP 1: Convert Input(s) to Base Unit

Structural Number for Surface Course: 150 Millimeter --> 150 Millimeter No Conversion Required
Layer Coefficient: 0.5 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

D_n = (SN₁/a_n) --> (150/0.5)

Evaluating ... ...

D_n = 300

STEP 3: Convert Result to Output's Unit

0.3 Meter -->300 Millimeter (Check conversion here)

FINAL ANSWER

300 Millimeter <-- Actual Thickness

(Calculation completed in 00.004 seconds)

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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

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< Structural Numbers for Flexible Pavements Calculators

Structural Number to Withstand Anticipated Axle Loads

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

Structural Number for Base Course

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

Actual Thickness of Surface Course given Structural Number

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

Structural Number for Surface Course

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

Actual Thickness of Surface Course given Structural Number Formula

LaTeX Go

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

What is structural number (SN)?

Structural Number (SN), which is an abstract value that expresses the structural strength of the overall pavement. The Structural Number, formerly called a "thickness index”, was originally determined with help of the American Association of State Highway Officials (AASHO) road test of the late 1950s and early 1960s. It is used as an indicator to determine the strength of a total pavement structure.

What is the structural number SN of a flexible pavement?

One of the key questions in the structural design of an asphalt pavement is how thick each layer of the structure should be. During design, these thicknesses are related to the Structural Number (SN), which is an abstract value that expresses the structural strength of the overall pavement.

How to Calculate Actual Thickness of Surface Course given Structural Number?

Actual Thickness of Surface Course given Structural Number calculator uses Actual Thickness = (Structural Number for Surface Course/Layer Coefficient) to calculate the Actual Thickness, The Actual thickness of surface course given structural number can be described as the design thickness of various layer courses in a pavement. Actual Thickness is denoted by D_n symbol.

How to calculate Actual Thickness of Surface Course given Structural Number using this online calculator? To use this online calculator for Actual Thickness of Surface Course given Structural Number, enter Structural Number for Surface Course (SN₁) & Layer Coefficient (a_n) and hit the calculate button. Here is how the Actual Thickness of Surface Course given Structural Number calculation can be explained with given input values -> 300000 = (0.15/0.5).

FAQ

What is Actual Thickness of Surface Course given Structural Number?

The Actual thickness of surface course given structural number can be described as the design thickness of various layer courses in a pavement and is represented as D_n = (SN₁/a_n) or Actual Thickness = (Structural Number for Surface Course/Layer Coefficient). Structural Number for Surface Course can be described as the ability of the surface course that can withstand the axle loads & 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.

How to calculate Actual Thickness of Surface Course given Structural Number?

The Actual thickness of surface course given structural number can be described as the design thickness of various layer courses in a pavement is calculated using Actual Thickness = (Structural Number for Surface Course/Layer Coefficient). To calculate Actual Thickness of Surface Course given Structural Number, you need Structural Number for Surface Course (SN₁) & Layer Coefficient (a_n). With our tool, you need to enter the respective value for Structural Number for Surface Course & Layer Coefficient and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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