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Chennai, Tamil Nadu, India
About Us
Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old.
Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old.
High-velocity pneumatic concrete application for structural facing, repair, and surface protection across South India.
Shotcrete, also known as guniting, is concrete or mortar pneumatically projected at high velocity onto a surface, compacting itself on impact. The technique achieves a dense, durable, well-bonded layer without the need for formwork, making it ideal for irregular, vertical, or overhead surfaces where conventional concrete placement is impractical.
Two principal methods — wet-mix and dry-mix shotcrete — are selected based on application volume, surface type, and required finish. Both methods produce a monolithic, high-strength facing suitable for new construction, structural strengthening, and repair of deteriorated concrete.
At PJ Construction, our teams operate wet-mix and dry-mix shotcrete machines, enabling application on slopes, tunnels, water structures, and structural elements with precision and consistency. Every application is quality-checked through core sampling and rebound testing.
We bring specialist equipment, mix design expertise, and a proven track record to every shotcrete and guniting project across South India.
We own and operate both wet-mix and dry-mix shotcrete equipment — selecting the right method for each application without subcontracting.
Every mix design is engineered for target strength, adhesion, and rebound control specific to the surface and exposure condition.
Successfully completed shotcrete works across Tamil Nadu, Karnataka, Andhra Pradesh, and Kerala — from slopes to structural repair.
Core sampling, thickness checks, and third-party QA inspections are standard — your structure is backed by documented test data.
Our structured, stage-by-stage approach ensures each application layer achieves design thickness and bond strength — eliminating risk of delamination and complying with relevant IS codes for sprayed concrete.
The receiving surface is cleaned of loose material, laitance, and contamination, and roughened where needed to maximise mechanical bond with the shotcrete layer.
Wire mesh or fibre reinforcement is fixed to the surface where structural reinforcement is required, providing a substrate for shotcrete adhesion.
Concrete or mortar mix is proportioned and batched to the design strength grade, with accelerators or admixtures added as required for the application method.
The mix is pneumatically projected onto the surface in controlled layers of 75–100 mm, achieving dense compaction on impact without segregation.
Surface finishing is carried out to the specified texture, followed by proper curing to achieve full design strength and minimise shrinkage cracking.
Core samples and rebound hammer tests verify in-situ strength and thickness, confirming the application meets design specifications.
Shotcrete and guniting applications are used wherever durable concrete facing or repair is needed on irregular or hard-to-access surfaces.
Slope & Excavation Facing Protective and structural facing over soil-nailed or anchored slopes and excavation faces.
Tunnel Lining & Support Initial and final lining application in tunnel construction for structural support and water control.
Canal & Reservoir Lining Durable, low-permeability lining for irrigation canals, reservoirs, and water channels.
Structural Repair & Strengthening Repair of deteriorated concrete columns, beams, and walls, and section enlargement for strengthening.
Swimming Pool & Water Tank Construction Seamless, watertight concrete shells for pools and tanks of irregular geometry.
Rock Slope & Tunnel Portal Protection Surface stabilization of exposed rock faces against weathering and rockfall.
Reach out to our engineering team for a site assessment and mix design consultation. We'll evaluate your surface and structural requirements and propose the most suitable shotcrete solution for your project.
