NLMK Calculator: Optimize Aggregate Selection to Fit Your Budget

At the peak of the construction season, NLMK is introducing a tool that calculates the economic effect of using blast-furnace slag aggregate compared with other options.

 

The calculator shows the cost difference across various materials: BF slag aggregate, limestone, sandstone, crystalline schist, and granite.

 

As an illustration, here is a typical calculation example for constructing a Category III–IV road base in the Voronezh Region (within a 200 km radius of Lipetsk).*

 

The primary economic benefit comes from the material’s bulk density. This parameter directly affects the cost estimate: BF slag aggregate is lighter than natural counterparts thanks to its porous structure and composition.

 

Material

NLMK's BF aggregate

Limestone    

Sandstone    

Crystalline shale    

Granite    

Size, mm

0–70 / 0–80

0–80

0–80

0–80

0–80

Bulk density, t/m3

1,25

1.4

1.5

1.85

1.38

Relative compaction factor

1.4

1.4

1.5

1.5

1.5

Base layer thickness**, m

0.25

0.25

0.25

0.25

0.25

Price, RUB/t, construction site delivery, excl. VAT

1,300

1,350

1,200

1,000

1,750

Material need, t/m3

438

490

563

694

518

Material cost, RUB, excl. VAT

569,400

661,500

675,000

693,750

905,625

Higher price

Savings!

16%

19%

22%

59%


Find the best option for your project budget.

Send a request for an individual calculation to Andrey Ryabov (Head of Bulk Products Development):
  +7 (980) 192-88-89
  ryabov_am2@nlmk.com

 

You can find detailed information about NLMK’s road construction products in this section.



29.06.2026

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