MasterRoc
MasterRoc HCA 30
Chemical, Non-Dangerous Cement Hydration Control Admixture
How Does MasterRoc HCA 30 Work?
MasterRoc HCA 30 is a liquid, non-chloride admixture that controls the dynamics of the cement hydration process. It suspends hydration and allows re-activation hours after batching without compromising the quality of the hardened concrete or shotcrete. MasterRoc HCA 30 enables long transportation and storage times as well as work interruptions in the shotcrete process, preventing quality loss, decreased productivity, and wasted material. MasterRoc HCA 30 is the adoption of Delvo technology—a breakthrough by Master Builders Solutions in concrete technology—for shotcrete. MasterRoc HCA 30 conforms to AS 1478 Type Re.
What Are the Unique Features of MasterRoc HCA 30?
MasterRoc HCA 30 is a unique chemical admixture that controls the dynamics of cement hydration, suspending the process. Using one of Master Builders Solutions’ shotcrete accelerators, the hydration process can be reactivated hours or even days later.
How Does MasterRoc HCA 30 Benefit Customers?
Batched wet or dry, shotcrete mixes remain fresh for up to 3 days
Fully flexible delivery options for manufactured shotcrete
No cleaning of pumps or pipes during work interruptions, for up to 24 hours
Complete use of wet and dry mixes
Interruptions and storage do not affect fresh shotcrete properties
Expensive bagged material can be replaced by economical job site mixes
Considerable reduction of rebound and dust
Reduced waste disposal and irritation to humans
Simpler and lower-risk construction program by enabling better scheduling and easier planning
Time and cost-saving through better allocation of material, equipment, and manpower
Considerable savings on overall construction costs and financing
MasterRoc HCA 30 stabilised shotcrete mixes exhibit the properties of fresh shotcrete for 3 to 72 hours without loss of quality
MasterRoc HCA 30 provides total flexibility from batching through delivery and storage for the application of wet or dry mixes