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

__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:**

- Production of Bitumen is economical.
- Physical and rheological properties of bitumen bring versatility.
- The melting point of Bitumen is low.
- Bitumen can undergo recycling.
- Bitumen gain Adhesive Nature.
- 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:

- Find out the dimension (Width and thickness)
- Calculate Volume of Asphalt = (Long * Width * Thickness) m^3
- Find out the density of Asphalt (145 lbs/cft to 2330 Kg/m3)
- Calculate the quantity of Asphalt= ( Density* Volume)/1000
- Use the Compaction Factor for AWC (1.28% - 1.30% in Asphalt)
- Total Weight of Asphalt with Compaction Factor = Quantity of AWC x Compaction Factor
- 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:

- Find out the dimension (Width and thickness)
- Calculate Volume of Asphalt = (Long * Width * Thickness) m^3
- Find out the density of Asphalt (145 lbs/cft to 2330 Kg/m3)
- Calculate the quantity of Asphalt= ( Density* Volume)/1000
- Use the Compaction Factor for ABC (1.23% - 1.26% in Asphalt)
- Total Weight of Asphalt with Compaction Factor = Quantity of AWC x Compaction Factor
- 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.

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.