Asphalt and premix tonnage

Tonnes of asphalt or premix from the area and the compacted thickness, with a waste allowance.

✓ Free, no sign-up ✓ Works on your phone, standing at the problem ✓ The formula and the assumptions are always shown

IT CIVILS  ·  IT ADMIN BUSTER
1 Enter the job

Asphalt and premix tonnage

Worked out at itcivils.com/free/calculators/  ·  Free construction calculators for site teams.
Check every quantity against your own specification and your supplier's own figures before ordering.

A worked example

This is the job the page opens with, already worked out. Change any figure above and the answer changes with it.

The job

Length
100 m
Width
6 m
Compacted thickness
40 mm
Compacted density
2.40 t/m³
Waste and wastage in the paver
5 %
Truck payload
15 tonnes

The answer

60.48tonnes  ·  Asphalt to order

Area
600 m²
Compacted volume
24 m³
Mass, no waste
57.6 tonnes
Waste at 5%
2.88 tonnes
Rate per m²
100.8 kg/m²
Loads at 15 t
5 loads

The working

600 m² × 40 mm = 24 m³, × 2.40 t/m³ = 57.6 t, plus 5%.

What it assumes

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On the job

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Why these are free, and what they assume

These come from ten years on site: first in contracting on production and civil works, then in consulting doing construction monitoring for consultants appointed by the City of Cape Town. Working a quantity out twice, because the first answer was on a piece of board that blew away, is a thing that happens to everybody.

Every calculator shows the formula it used and the assumptions it made, because a number with no working behind it is worth nothing on site. Where a figure varies by material or supplier, it is an input you can change rather than something hidden. Check the answers against your own specification and your supplier's own figures before you order. These help you work faster, they do not replace your own judgement.

If they save you time, the paid IT Admin Buster packs cover the admin side: progress report templates, daily diaries, inspection checklists and the wording banks that go with them.