Blog & News
Latest updates, industry news and technological innovations from Denmak.
Pushing the Limits Vertically and Horizontally: Long-Distance Shotcrete Techniques
How do you push the boundaries of vertical and horizontal shotcrete in tunnel and dam projects? Discover critical technical details for long-distance delivery, from steel pipe line installation to selecting high-pressure clamps, gaskets, and hose adapters, along with Denmak Makina’s professional solutions to prevent pressure loss.
The Birth and Evolution of Shotcrete Technology Around the World
How did a museum curator's 1907 invention for coating animal models become the backbone of modern tunneling and mining? Explore the fascinating journey of shotcrete—from the invention of "Gunite" to the revolutionary NATM method and today's high-tech robotic systems that shape the world's infrastructure.
Steel Plate Production and Technical Specifications for Shotcrete Machines
Discover the engineering behind high-performance shotcrete machine steel plates. Learn how our specialized casting, heat treatment, and precision grinding processes ensure maximum durability and efficiency in tunnel and mining projects.
Types of Grout Mixers and Technical Selection Criteria
How to choose the right grout mixer? Differences between colloidal and turbulent mixers, agitator usage, water dosing systems and project-based technical selection criteria.
DM-PEM 100 Piston Type Cement Injection Machine | Denmak Makina
The DM-PEM 100 is a piston-type cement injection machine engineered by Denmak Makina for demanding construction site conditions. Powered by a hydraulic drive system, its double-boiler design achieves up to 120 bar injection pressure while maintaining a continuous material flow. Widely used in dam curtain grouting, tunnel waterproofing, soil nailing and anchor applications, the machine features chrome and titanium-coated cylinder walls that provide exceptional resistance to abrasive materials.
Concrete Admixtures and Dosing: The Effect of Set Accelerators on Compressive Strength
Set accelerators are the chemical agents that allow shotcrete to defy gravity — bonding instantly to overhead and vertical surfaces without sagging. Choosing the right type matters as much as using it correctly: conventional alkali accelerators can reduce 28-day compressive strength by 15–30%, while modern alkali-free formulations limit that loss to as little as ~3%. Dosage, calculated as 2–8% of binder mass depending on accelerator type, must be precise — underdosing causes slump and rebound, overdosing weakens the structure long-term. Denmak Makina's precision dosing pumps eliminate manual error by synchronising chemical injection with concrete flow rate, delivering a consistent mix from the first metre to the last.