# How to Calculate Quantity for Asphalt Base Course and Asphalt Wearing Course

## How to Calculate Quantity for Asphalt Base Course and Asphalt Wearing Course:

In this Article today we will cover about the How to Calculate Quantity for Asphalt Base Course and Asphalt Wearing Course | How to Calculate Quantity for Asphalt in Road How to Find Quantity of Asphalt Wearing Course | How to Find Quantity of Asphalt Base Course | Difference Between Asphalt and Bitumen | What is Asphalt | What is Bitumen | Reasons to Use Bitumen in Road Construction | Field Test of Bitumen

Difference Between Asphalt and Bitumen:

### What is Asphalt?

Asphalt is basically a composite mix of sand, aggregates or stone dust or bitumen which is bind by bitumen.

### 1. Composition of Asphalt:

95% Stone Dust, Sand Aggregates

5% Bitumen as binder

### 2. Temperature:

150 to 190 Degree Celsius.

### 3. Density of Asphalt:

2330 Kg/m3 or 145 lbs/cft

### 4. Size of Aggregates:

If we required less flexible pavements then we will use large size aggregates they varies between 10 mm to 14 mm.

And if we want more flexible pavements than we will use small size aggregates they vary between 5mm to 10mm

### What is Bitumen?

Bitumen is a common binder in road construction.

### 1. Composition of Bitumen:

Bitumen is a Composition of (Partially hydrogenated polycyclic automatic compound.

2. Temperature or Boiling Point:

525 Degree Celsius.

### 3. Density of Bitumen:

1040 Kg/m3

4. Reasons to Use Bitumen in Road Construction:

1. Production of Bitumen is economical.
2. Physical and rheological properties of bitumen bring versatility.
3. The melting point of Bitumen is low.
4. Bitumen can undergo recycling.
6. Bitumen has color varieties.

### 5. Field Test of Bitumen:

1. Check Bitumen Odour or Smell

Odour of bitumen is similar to lubricating oil. It is generally smell like lubricating oil  which is used in machines to reduce friction and increase the speed or working process of machines like diesel grease, etc.

2. Mix the bitumen with either petrol, kerosene or diesel, if it gives uniform dark color liquid that it means it is suitable for our road construction.

## How to Calculate Quantity for Asphalt in Road

### How To Find The Quantity of Asphalt Wearing Course (AWC):

#### Formula for Calculation of AWC in Road:

1. Find out the dimension (Width and thickness)
2. Calculate Volume of Asphalt = (Long * Width * Thickness) m^3
3. Find out the density of Asphalt (145 lbs/cft to 2330 Kg/m3)
4. Calculate the quantity of Asphalt= ( Density* Volume)/1000
5. Use the Compaction Factor for AWC (1.28% - 1.30% in Asphalt)
6. Total Weight of Asphalt with Compaction Factor = Quantity of AWC x Compaction Factor
7. Calculate No of Dump Trucks = Total Weight of AWC Asphalt in Tones / Material in One Dump Truck

### Given Data (Example):

Length of Road = L = 115 m

Width of Road = W = 25 m

Thickness of Asphalt Layer = H = 50 mm = 0.050 m

### Quantity of Asphalt Wearing Course Calculation in Road:

Therefore, the Volumetric Quantity of AWC Section = V = L x W x H

Volume of AWC = 115 x 25 x 0.050 = 143.75 Cum

Here, we use a standard Density of Asphalt is 145 lbs/cft or 2330 Kg/m3 which may be somewhat different depending on the precise asphalt mixture.

Quantity of AWC = Volume of AWC x Density of Asphalt

Quantity of AWC = 143.75 x 2330 = 334937.50 Kg

Compaction Factor (1.28 to 1.30) = 1.30 %

Total Weight of Asphalt with Compaction Factor = Quantity of AWC x Compaction Factor

Total Weight of AWC Asphalt with Compaction Factor (Lose Material) = 334937.5 x 1.3 = 3 435418.75 Kg

Total Weight of AWC Asphalt in Tones = Total Weight of AWC Asphalt with Compaction Factor / 1000

Total Weight of AWC Asphalt in Tones = 435418.75 / 1000 = 435.419 Tons

Material in One Dump Truck = 24 Ton

No of Dump Trucks = Total Weight of AWC Asphalt in Tones / Material in One Dump Truck

No of Dump Trucks = 435.419 / 24 = 18.14 Trucks

### How To Find The Quantity of Asphalt Base Course (ABC):

#### Formula for Calculation of ABC in Road:

1. Find out the dimension (Width and thickness)
2. Calculate Volume of Asphalt = (Long * Width * Thickness) m^3
3. Find out the density of Asphalt (145 lbs/cft to 2330 Kg/m3)
4. Calculate the quantity of Asphalt= ( Density* Volume)/1000
5. Use the Compaction Factor for ABC (1.23% - 1.26% in Asphalt)
6. Total Weight of Asphalt with Compaction Factor = Quantity of AWC x Compaction Factor
7. Calculate No of Dump Trucks = Total Weight of ABC Asphalt in Tones / Material in One Dump Truck

### Given Data (Example):

Length of Road = L = 120 m

Width of Road = W = 25 m

Thickness of Asphalt Layer = H = 90 mm = 0.075 m

### Quantity of Asphalt Wearing Course Calculation in Road:

Therefore, the Volumetric Quantity of ABC Section = V = L x W x H

Volume of ABC = 120 x 25 x 0.075 = 225 Cum

Here, we use a standard Density of Asphalt is 145 lbs/cft or 2330 Kg/m3 which may be somewhat different depending on the precise asphalt mixture.

Quantity of ABC = Volume of ABC x Density of Asphalt

Quantity of ABC = 225 x 2330 = 524250 Kg

Compaction Factor (1.23 to 1.26) = 1.24 %

Total Weight of Asphalt with Compaction Factor = Quantity of ABC x Compaction Factor

Total Weight of ABC Asphalt with Compaction Factor (Lose Material) = 524250 x 1.24 = 650070 Kg

Total Weight of ABC Asphalt in Tones = Total Weight of ABC Asphalt with Compaction Factor / 1000

Total Weight of AWC Asphalt in Tones = 650070 / 1000 = 650.070 Tons

Material in One Dump Truck = 24 Ton

No of Dump Trucks = Total Weight of ABC Asphalt in Tones / Material in One Dump Truck

No of Dump Trucks = 650.070 / 24 = 27.09 Trucks

## Conclusion:

#### Full article on How to Calculate Quantity for Asphalt Base Course and Asphalt Wearing Course | How to Calculate Quantity for Asphalt in Road | How to Find Quantity of Asphalt Wearing Course | How to Find Quantity of Asphalt Base Course | Difference Between Asphalt and Bitumen | What is Asphalt | What is Bitumen | Reasons to Use Bitumen in Road Construction | Field Test of Bitumen. Thank you for the full reading of this article in "QA QC Civil Engineering" platform in English. If you find this post helpful, then help others by sharing it on social media.

QA QC Civil Engineering

Hi I am a Civil Engineer by profession but I’ve specialized and taken the journey in the field of Quality Engineering, QA/QC Civil Engineering, Bar Bending Schedule, Quantity Surveying, Construction, Concrete Works, Estimating & Costing and AutoCAD Civil 3D.