We break
hard rock
on purpose.
SAN Constructions designs and executes controlled rock blasting, drilling, and chemical breaking for highways, quarries, and infrastructure across Sri Lanka — engineered for safety, precision, and minimal disruption.
A specialist in Design and Excavation of Hard Rock.
SAN Constructions is a specialist provider of hard rock blasting and drilling services for mining, road construction, and infrastructure development, with a focus on safety, precision, and environmental compliance. Since 2018, we've grown into a trusted name in Sri Lanka's highway controlled blasting industry, built on technical excellence and operational reliability.
We offer tailor-made blasting solutions that reduce cost, improve efficiency, and protect structural integrity — from quarry development and open-pit mining to highway cuttings, tunneling, and urban demolition. Every blast is planned to minimize ground vibration, fly rock, and noise, keeping disruption to nearby communities and ecosystems to a minimum.
Mission
To deliver safe, precise, and efficient hard rock excavation and blasting solutions, using cutting-edge technology and expert knowledge — while upholding the highest standards of safety, environmental care, and client satisfaction.
Vision
To be the most trusted name in hard rock excavation and blasting, setting new standards in safety, innovation, and reliability.
Six disciplines, one crew.
From first borehole to final fragment, we plan and execute the full blasting cycle in-house.
Controlled Rock Blasting
Precision-based fragmentation for civil engineering, mining, and infrastructure work near sensitive structures or protected zones — engineered with electric detonators and high-precision drilling equipment.
Drilling & Blasting Design
Blast designs customized to geological conditions, project requirements, and safety regulations — optimizing every phase of the blasting cycle for productivity and minimal environmental disturbance.
Quarry Blasting
Fragmentation of limestone, granite, basalt, and aggregate for easy handling and processing — optimized for production, environmental control, and community safety.
Chemical Blasting
Non-explosive rock and concrete breaking using expansive chemical agents — silent, vibration-free, and license-free, ideal near buildings, pipelines, and heritage sites.
Trenching & Road Cutting
Controlled excavation through hard rock for access routes, utility trenching, and roadbeds in mountainous terrain — with narrow, precision-planned cut blasts.
Pile Hacking
Professional pile hacking ensuring clean cut-off levels and exposed reinforcement for high-integrity structural connections, executed to strict safety standards.
The grid comes first. The break follows.
Every controlled blast starts as a plan on paper: a grid of boreholes, spaced and sequenced to guide the fracture exactly where it's needed. It's the difference between rubble and a rock face you can build against.
A fracture plane is created to stop rock breakage beyond the design limit.
Contour blasting produces a clean final wall with minimal overbreak.
Closely spaced holes guide the blast and protect adjacent rock.
Lighter charges near sensitive zones reduce impact on nearby structures.
Chainage by chainage.
A track record measured in cubic meters of rock and the highway packages they cleared.
–70+070
Rock Excavation, CEP II — 103,000 m³
Controlled blasting with pre-splitting across CH 62+600 to CH 70+070, plus chemical blasting of 8,000 m³ at CH 76+500.
Quarrying of IML A-Grade Metal Quarry
Ongoing production quarrying for aggregate supply, including drill-and-blast design and bench blasting.
–11+230
Rock Excavation, CEP III Package 1N — 310,000 m³
Controlled blasting with pre-splitting (310,000 m³), trench blasting (650 m³), and chemical blasting (800 m³).
Chemical Blasting for Concrete Demolition
Silent, vibration-free demolition of concrete structures in a dense urban site.
Package 1N
Chemical Blasting for Soil Nailing
Rock excavation via chemical blasting to support a soil nailing programme.
Engineers, not just operators.
Every blast plan is signed off by chartered engineers with a decade-plus in mining and mineral processing.
Eng. I.D. Prasan Priyasanka
10+ years across mining and mineral processing engineering, with experience in every blasting technique — quarry, controlled, chemical — and in drilling and blasting design. Prepares reports and recommendations for the Geological Survey & Mines Bureau.
Eng. L.P. Sameera Lakshan
8+ years in mining and mineral processing engineering, with hands-on experience across quarry, controlled, and chemical blasting, and drilling and blasting design.
Eng. K.S. Wijerathna
10 years in geotechnical and mining engineering — borehole exploration, groundwater exploration, soil investigation, drilling methodology, and soil laboratory testing.
Mrs. A.G.S.S. Jayaratne
7 years of experience with a sound working knowledge of the mining and road construction sector.
What every blast plan has to answer to.
Precision
We plan meticulously to achieve controlled, effective results.
Safety
Zero-harm approach for people, property, and the environment.
Integrity
Ethical operations with full regulatory compliance.
Innovation
Use of the latest technology in blast design and monitoring.
Sustainability
Minimizing environmental impact in all operations.
Fleet on hand.
A working inventory of the vehicles, compressors, and drilling gear behind every job.
| Item | Type | Qty |
|---|---|---|
| Double Cab | Mitsubishi L200 | 1 |
| Crew Cab | Bolero & TATA Xenon | 2 |
| Motor Cycle | Bajaj CT 100 | 2 |
| Air Compressor | Airman 175 / Airman 655 | 6 + 1 |
| Excavators (hired basis) | Komatsu 200 | 2 |
| Y26 Hand-held Hammer | Y26 | 12 |
| Taper Rods (up to 13 ft) | GIII | 50 |
| Button Bits | SA-Q7 | — |
| Air Hose | 3/4″ 1st Quality (50m rolls) | 15 |
| Air Grinder | Local | 3 |
| Hilti Machine 35kg | — | 2 |
| Blasting Exploder | Local | 3 |
| Ohm Meters | Local | 2 |
| Syron | Local | 2 |
Let's plan
your next blast.
Send us your project's geology, chainage, and timeline — our engineers will come back with a drill-and-blast design, not just a quote.
Start a project brief
Tell us the rock type, target volume, and any structures nearby — we'll respond with a site-specific approach within two working days.
Email the team