**How Calculate Asphalt Quantity for Roundabout in Road Construction | ****How to Calculate Asphalt Quantity in Tons | Asphalt Compaction Factor**

In this Article today we will talk about the **How Calculate Asphalt Quantity for Round About in Road Construction | How to Calculate Quantity of Dump Trucks in Asphalt | How to Calculate Asphalt Quantity in Tons | What is the Formula to Calculate Asphalt | How to Measure Asphalt Quantity for Road**** | Asphalt Compaction Factor | Asphalt Base Course | Asphalt Wearing Course**

**What is Roundabout?**

Aroundabout(Traffic Circle) is a type of circular intersection or junction in which road traffic is permitted to flow in one direction around a central island, and priority is typically given to traffic already in the junction.

**How Calculate Asphalt Quantity for Roundabout in Road Construction?**

#### Note: We will use this method when we are going to find the lose material from compacted material **How to Calculate Quantity of Dump Trucks in Asphalt**

**How To Find The Quantity of Asphalt for Roundabout in Road:**

**Formula for Calculation of Asphalt in Road:**

- Find out the dimension (Outer Diameter and Inner Diameter)
- Calculate the Area of
**Asphalt**(Area of Asphalt and Area of Green Belt) - Calculate Volume of Asphalt = (Area * 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) and for ABC (1.23% – 1.26% in Asphalt)
**How to Measure Asphalt Quantity for Road** - 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
**Asphalt Base Course, Asphalt Wearing Course**

Before Reading this Article you must read first: **How to Calculate Asphalt or Bitumen Quantity for Roa**d

**Given Data (Example):**

Outer Diameter of Roundabout = D1 = 40 m

Inner Diameter of Roundabout = D2 = 10 m

Thickness of Asphalt Layer = H = 100 mm = 0.10 m

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

Area of Asphalt Portion and Green Belt = A1 = Pi x D1 x D1 x 0.25

**Area of Asphalt Portion and Green Belt = A1** = 3.142 x 40 x 40 x 0.25 = **1256.80 m2**

Area of Green Belt = A2 = Pi x D2 x D2 x 0.25

**Area of Green Belt = A2** = 3.142 x 10 x 10 x 0.25 = **78.55 m2**

Net Area = Area of Asphalt Portion and Green Belt – Area of Green Belt

**Net Area = A** = A1 – A2 = 1256.80 – 78.55 = **1178.25 m2**

Therefore, the** Volumetric Quantity of Roundabout** Section = V = Net Area x H

**Volume of Roundabout** = 1178.25 x 0.10 = **117.82 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 Roundabout** = Volume of AWC x Density of Asphalt

**Quantity of Roundabout** = 117.82 x 2330 = **274520.60 Kg**

**Compaction Factor** (1.28 to 1.30) = **1.26 %**

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

**Total Weight of Roundabout Asphalt with Compaction Factor (Lose Material)** = 274520.60 x 1.26 = **345895.956 Kg**

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

**Total Weight of Roundabout Asphalt in Tones** = 345895.956 / 1000 = **345.89 Tons**

**How to Find No. of Trucks in Asphalt Quantity?**

**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** = 345.89 / 24 = **14.41 Trucks (Lose Material)**

**FAQ’s**

### What is the formula to calculate asphalt?

### How do I figure out how many dump trucks I need?

### How many tons is a cubic Metre of asphalt?

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### How many square meters is a ton of asphalt?

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**Conclusion:**

Full article on **How Calculate Asphalt Quantity for Round About in Road Construction | How to Calculate Quantity of Dump Trucks in Asphalt | How to Calculate Asphalt Quantity in Tons | What is the Formula to Calculate Asphalt | How to Measure Asphalt Quantity for Road**** | Asphalt Compaction Factor | Asphalt Base Course | Asphalt Wearing Course****.** Thank you for the full reading of this article in “**The Civil Engineering**” platform in English. If you find this post helpful, then help others by sharing it on social media. **If any formula of BBS is missing from this article please tell me in comments.**

i have loved this work.

Am doing Q.S and i want with roads.

so quantification of road materials is important to me

I will upload the more materials about road quantity soon