Crushed stone

Crushed stone 20⁠–⁠40 mm

Щебень 20–40

Medium-to-coarse crushed stone.

Fraction: 20–40 mm
Type: Unwashed
Applicable standard: GOST 8267-93

+998 71 299 64 25

About the product

Crushed stone 20–40 mm is a medium-to-coarse fraction. The stone is crushed in a jaw crusher and screened to the 20×40 fraction.

Its large grains spread heavy loads well, so it is widely used in road bases and mass concrete structures.

Key features

Medium-to-coarse fraction
Jaw-crushed and screened
Laboratory control to GOST

Specifications

Fraction: 20–40 mm
Type: Unwashed
Applicable standard: GOST 8267-93
Raw material source: The company's own quarries (4)
Quality control: Density, strength, grading
Delivery: By dump truck, as agreed

Production

From quarry to finished product

Crushed stone 20–40 mm goes through the following stages on its way from the quarry to the customer.

Stage 1
Drilling and blasting
Rock at the quarry is loosened by drilling and blasting, using two modern drilling rigs purchased by Uzbekistan Railways JSC.
Stage 2
Excavation and haulage
The blasted rock is loaded by excavators and hauled by dump trucks to the crushing and screening plant.
Stage 3
Primary crushing
Raw rock is fed into a jaw crusher and broken into large pieces.
Stage 4
Screening
Screens grade the crushed stone into fractions from 25×60 down to 5×10.
Stage 5
Laboratory control
In the company's testing laboratory the density, strength and grading of every batch are tested to GOST standards.
Stage 6
Loading and delivery
Finished product is loaded into dump trucks by front-end loaders and delivered to the agreed address.

Applications

Road base
Mass concrete structures
Foundation bedding
Drainage

Quality assurance

An experienced specialist in the company's testing laboratory checks every batch. Our products are regularly supplied to the Uzbekistan Railways network and to major public and private infrastructure projects.