Structural Number for Subbase Course Calculator

✖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 Base Course Payment can be described as the design thickness of various layers of the courses for flexible payments.ⓘ Actual Thickness Base Course Payment [T_a]			+10% -10%
✖Drainage coefficient is a value assigned to a pavement layer that represents its relative loss of strength due to drainage characteristics and exposure to moisture saturation.ⓘ Drainage coefficient [M_n]			+10% -10%

✖Structural Number for Subbase Course can be described as the ability of the subbase course to withstand the axle loads.ⓘ Structural Number for Subbase Course [SN₃]

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Structural Number for Subbase Course Solution

STEP 0: Pre-Calculation Summary

Formula Used

Structural Number for Subbase Course = (Layer Coefficient*Actual Thickness Base Course Payment*Drainage coefficient)
SN₃ = (a_n*T_a*M_n)
This formula uses 4 Variables

Variables Used

Structural Number for Subbase Course - (Measured in Millimeter) - Structural Number for Subbase Course can be described as the ability of the subbase course to 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.
Actual Thickness Base Course Payment - (Measured in Millimeter) - Actual Thickness Base Course Payment can be described as the design thickness of various layers of the courses for flexible payments.
Drainage coefficient - Drainage coefficient is a value assigned to a pavement layer that represents its relative loss of strength due to drainage characteristics and exposure to moisture saturation.

STEP 1: Convert Input(s) to Base Unit

Layer Coefficient: 0.5 --> No Conversion Required
Actual Thickness Base Course Payment: 1200 Millimeter --> 1200 Millimeter No Conversion Required
Drainage coefficient: 0.25 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

SN₃ = (a_n*T_a*M_n) --> (0.5*1200*0.25)

Evaluating ... ...

SN₃ = 150

STEP 3: Convert Result to Output's Unit

0.15 Meter -->150 Millimeter (Check conversion here)

FINAL ANSWER

150 Millimeter <-- Structural Number for Subbase Course

(Calculation completed in 00.004 seconds)

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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

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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)

Structural Number for Subbase Course Formula

LaTeX Go

Structural Number for Subbase Course = (Layer Coefficient*Actual Thickness Base Course Payment*Drainage coefficient)
SN₃ = (a_n*T_a*M_n)

What is subbase course?

The layer between the base course and subgrade, Subbase courses are generally constructed out of crushed aggregate or engineered fill.

How to Calculate Structural Number for Subbase Course?

Structural Number for Subbase Course calculator uses Structural Number for Subbase Course = (Layer Coefficient*Actual Thickness Base Course Payment*Drainage coefficient) to calculate the Structural Number for Subbase Course, Structural Number for Subbase Course is defined as an abstract value that expresses the structural strength of the overall pavement. Structural Number for Subbase Course is denoted by SN₃ symbol.

How to calculate Structural Number for Subbase Course using this online calculator? To use this online calculator for Structural Number for Subbase Course, enter Layer Coefficient (a_n), Actual Thickness Base Course Payment (T_a) & Drainage coefficient (M_n) and hit the calculate button. Here is how the Structural Number for Subbase Course calculation can be explained with given input values -> 150000 = (0.5*1.2*0.25).

FAQ

What is Structural Number for Subbase Course?

Structural Number for Subbase Course is defined as an abstract value that expresses the structural strength of the overall pavement and is represented as SN₃ = (a_n*T_a*M_n) or Structural Number for Subbase Course = (Layer Coefficient*Actual Thickness Base Course Payment*Drainage 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, Actual Thickness Base Course Payment can be described as the design thickness of various layers of the courses for flexible payments & Drainage coefficient is a value assigned to a pavement layer that represents its relative loss of strength due to drainage characteristics and exposure to moisture saturation.

How to calculate Structural Number for Subbase Course?

Structural Number for Subbase Course is defined as an abstract value that expresses the structural strength of the overall pavement is calculated using Structural Number for Subbase Course = (Layer Coefficient*Actual Thickness Base Course Payment*Drainage coefficient). To calculate Structural Number for Subbase Course, you need Layer Coefficient (a_n), Actual Thickness Base Course Payment (T_a) & Drainage coefficient (M_n). With our tool, you need to enter the respective value for Layer Coefficient, Actual Thickness Base Course Payment & Drainage 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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