Why Atyrau specifically needs diabase
Concrete durability in a sulfate environment depends not only on the cement but also on the aggregate. Diabase from the Sartauskoye-8 deposit suits these conditions by the physics of the rock:
- Dense igneous rock, low water absorption — fewer paths for aggressive moisture to enter the concrete.
- Low reactivity with cement and minimal alkali-soluble silica — no risk of internal alkali-silica corrosion. Limestone carries a high risk here, so it is used with caution in critical Caspian structures.
- Strength grade M1400 — one of the highest for construction crushed stone in Kazakhstan; margin for concrete M400 and above.
- Frost resistance F300, radiation safety Class I — for residential, civil and industrial construction without restrictions.
In short: for high-grade, durable concrete in Atyrau, diabase delivers what limestone (corrosion risk) and imported gravel (rounded shape, weaker bond) cannot.
Who it suits in the region
Oil & gas and EPC contractors
- •Equipment foundations, pipe racks
- •Industrial pads
- •Port and marine structures
- •Airfield surfaces (6F / 6F(D))
Concrete plants and precast (RC)
- •High-grade concrete M400+
- •Precast reinforced-concrete units
- •Foundations, basement floors
Roads and asphalt plants
- •Road bases (crushed stone–sand mixes)
- •Asphalt concrete (5-10, 5-20)
- •Reinforced bases for highways
Full range — for any task
We cover the whole range of fractions, not just a couple of items:
| Fraction | Application |
|---|---|
| 5-10 mm | Concrete M400+, precast, asphalt top layer |
| 5-20 mm | Universal: concrete, asphalt, precast |
| 10-20 mm | Concrete M300–M500, foundations |
| 20-40 mm | Road bases, heavy concrete |
| 25-60 mm | Railway ballast (GOST 7392) |
| 40-70 mm | Foundation bedding, drainage |
| Screenings 0-5 mm | Sand from screenings for asphalt and mixes |
| Mixes 0-40 / 0-70 / 0-80 mm | Road and reinforced bases |
| 6F / 6F(D) | Airfields, heavy roads, sea ports |
| Rubble stone | Masonry, gabions, bank protection |
Not sure about the fraction? → catalog with prices · reference · calculator
Why buy from us
Our commercial partner is Vostok-Cement Commercia LLP, on the market since 2003. Over 20+ years we have supplied materials to the largest operators of this very region — Tengizchevroil (TCO), KPJV (FGP project), Schlumberger, Sicim (Prorva). We know the requirements and document flow of oil & gas projects: specifications, quality passports, test reports, deadlines.
- 🇰🇿 100% Kazakhstan local content — HKC is in the registry of domestic producers. A direct advantage in TCO, KazMunayGas, QazAvtoJol and KEGOC tenders.
- 📄 Full document package with every batch: conformity certificates, quality passport, test reports → Certificates & documents.
- 🧊 Product: cubic diabase M1400 · F300 · Class I, balance reserves > 20 million m³.
Delivery to Atyrau
- 📍 Rail shipping from Bershogyr station (Aktobe region) to Atyrau station.
- 🚂 Minimum batch — 1 wagon ≈ 69 t; for large projects we assemble trains of any size.
- 🧮 Calculate volume and number of wagons — crushed stone per wagon.
- 💵 The rail tariff is calculated individually by destination station and volume — request at b2b@vcc.kz.
FAQ — Atyrau
Do you deliver crushed stone to Atyrau?
Yes, we ship by rail from Bershogyr station to the destination station in Atyrau. Minimum batch — 1 wagon (≈69 t).
Is the crushed stone suitable for the sulfate environment of the Caspian region?
Diabase is a dense rock with low water absorption, low reactivity with cement and minimal alkali-soluble silica, which reduces the risk of concrete corrosion in a sulfate environment. The concrete mix design and cement type (incl. sulfate-resistant) are up to your technologist; we supply a durable aggregate and the full document package.
Which crushed stone for oil & gas and EPC facilities?
For industrial pads and base layers — 6F(D); for heavy bases — ballast 25-60; for high-grade concrete and foundations — 5-20 and 20-40.
How much is delivery to Atyrau?
The rail tariff depends on the destination station and volume, so it is calculated individually. Send the fraction, volume and station to b2b@vcc.kz and we will return a calculation and quote.