Technologies - Sprayed Concrete
Advanced systems for high performing sprayed concrete
High quality, durable shotcrete (sprayed concrete) has become a vital component of ground support and stabilization in both tunneling and mining. Wet mix sprayed tunnel linings create state-of-the-art, monolithic and composite structures with a substantial reduction in cost and time, lowering health risks, increasing worker safety and reducing the environmental impact versus conventional dry mixes.
Constantly striving to exceed customer needs and demands, our admixture technologies enhance the performance, hydration control and viscosity of sprayed concrete:
- Fast-setting alkali-free accelerator series (MasterRoc SA) produces sprayed concrete with early strength development and long-term strength.
- The combined use of structural reinforcing fibers has greatly improved the load absorption performance, decreasing residual crack propagation and increasing long-term durability for permanent support.
- We offer a multitude of chloride-free liquid admixtures for improvement of plastic and hardened properties of concrete.
- Our specially formulated product for lubrication of equipment (MasterRoc LUB) can be applied prior to concrete pumping to avoid blockages.
- We also supply a cement hydration control system for wet and dry sprayed concrete applications (MasterRoc HCA) that are capable of maintaining a pot life of up to 72 hours allowing for total and accurate flexibility of site logistics.
By adding microsilica (MasterRoc MS) we reduce permeability to increase the density and long-term strength and durability performance of the sprayed concrete in its hardened state. Microsilica also can improve the pumpability and workability of the sprayed concrete system in its fresh state.
MasterRoc FP 1350 - A cementitious based passive fire protection barrier for underground structures
MasterRoc HCA 10 – Cement hydration control system for wet and dry sprayed concrete, grouting and cement injection
MasterRoc LUB 1 - A lubricator for concrete pumps, hoses and lines
MasterRoc MS 610 – Densified silica fume for cast and sprayed concrete
MasterRoc MS 660 – Silica fume slurry for cast and sprayed concrete
MasterRoc SA 160 - Alkali-free, liquid high-performance set accelerator for sprayed concrete
MasterRoc SA 430 - Liquid sprayed concrete accelerator for wet-mix spraying
MasterRoc SA 545 – Alkali-free, non-caustic and non-toxic high performance powder accelerator for dry-mix sprayed concrete
MasterRoc STS 1000 – Pre bagged concrete for dry process shotcrete application
MasterRoc STS 1010 – Pre bagged concrete for dry process shotcrete application
MasterRoc STS 3210 – Spray applied, single component, polymer modified watertight mortar
MasterRoc TCC 735 - A chloride-free liquid concrete improver
MasterRoc TCC 780 - A liquid pumping aid