Marine works
Breakwaters & coastal defense
Breakwaters, docks, jetties and shoreline protection: dense, angular rock that withstands swell and salt water for decades.
Igneous rock quarry · Limón, Costa Rica
High-strength igneous rock
We are the authorized distributor for Tajo Basalto
> 90 MPa Compressive strength
~ 80 M t Proven reserve
50 + years In service against the sea
30 km To the Moín dock, Limón
Why Tajo Basalto
One reliable source for the development of high-quality marine infrastructure
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Proven quality
High-strength igneous rock (over 90 MPa), dense (2.71 to 2.81 t/m³) and low absorption (under 2%).
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Fifty years of proof
The stone of the German Dock and the Limón breakwater, in Costa Rica, came from this very quarry. Over 50 years later, it still stands against the Caribbean.
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Reserves
Close to 80 million tonnes of reserve, in a sound rock mass extracted with no overburden and minimal loss.
Applications and markets
Rock for the works that must stand up to the sea
Breakwaters, ports, artificial islands and major logistics corridors all share the same need: quality rock, in large volume, with reliable supply. Tajo Basalto supplies these projects, in Costa Rica and worldwide, from a single source.
Ports
Port infrastructure
Fills, expansions and protection for cargo and container terminals along the Caribbean coast.
Land reclamation
Artificial islands
Core and armour for platforms and islands reclaimed from the sea, with blocks that will not break down.
Flagship project
Cruise Terminal & Marina
Limón’s new cruise port: breakwaters and docks that depend directly on the quality of their rock.
Aggregates
High-performance aggregates
Material for structural concrete and high-strength bases, where common aggregates fall short.
The material & the deposit
An igneous rock: dense and impermeable
Rock type Hypabyssal igneous rock · analcime microgabbro (teschenite)
A sound rock mass, barely fractured and with no overburden
A homogeneous igneous body, isolated within an extensive sedimentary cover: a rock unique to the area, with reserves enough for the province’s major works.
- Estimated volume
- ~ 30 million m³
- Reserve in tonnes
- 81 to 84 million (~80 M t)
- Rock density
- 2.71 to 2.81 t/m³
- Extractable blocks
- 4 to 5 tonnes, angular
- Overburden
- None: sound rock exposed
- Fracturing
- Barely fractured, minimal loss
| Test | Result | Specification |
|---|---|---|
| Compressive strength | 933 to 988 kg/cm² (91.5 to 96.9 MPa) | > 90 MPa |
| Abrasion (Los Angeles) | 16.6 % | < 20 % |
| Absorption | 1.26 to 1.71 % | < 2 % |
| Specific gravity | 2.71 to 2.81 | 2.6 to 3.0 |
| Soundness (sodium sulfate) | 0.1 % | Very competent |
Sources: INSUMA S.A. (3142-12), Ingeniería Técnica de Pavimentos S.A. (ITP-176-13, ECA LE-050) and Geologist Giorgio Murillo.
The operation
Heavy machinery at work in the quarry
Extraction, sorting and loading with excavators and articulated haulers. Angular blocks straight from the rock mass to the works.
Project under way
Limón Cruise Terminal & Marina
The government is driving a new cruise terminal and marina in Limón: an investment of close to US$850 million across some 27 hectares, with a berth for two cruise ships, a marina, retail and hotels. It is the most ambitious port project on the Caribbean coast in decades.
Our proposal
The breakwater and the docks define how long the terminal will last, and they demand massive, dense, angular rock that resists sea water — exactly what Tajo Basalto offers. We propose supplying that rock from within Limón itself, less than 30 km from the site, with certified quality and full traceability.
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The right rock, already proven
The stone of Limón’s breakwater and German Dock came from this very quarry, still standing after more than 50 years against the Caribbean.
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Close, traceable supply
Supplying from Limón cuts haulage cost and footprint, and secures sustained volume throughout construction.
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Return for the communities
We tie the supply to a social and environmental trust, with tripartite approval of each project and public accountability.
Contact
Let’s talk about your project
Tell us about the project and we will send you the tech sheet, available volumes and a supply estimate.
- Email info@tajobasalto.com
- Location Limón, Costa Rica