​​MasterRoc MF 308 - High-performance admixture for improved homogeneity, pumpability and placeability of low-cohesion mine backfill mixes

How does Mas​​terRoc MF 308 work?

MasterRoc MF 308 is an aqueous solution of a high-molecular weight synthetic copolymer.

MasterRoc MF 308 admixture is formulated to improve the rheological behavior and in-situ properties of placed backfill. MasterRoc MF 308 admixture offers superior stability by increasing resistance to segregation, while acting as a pumping aid and facilitating placement with significant improvement in the homogeneity of the placed fill.

Recommended fo​​r use in:

• All types of hydraulic, low density paste fills and cemented aggregate fills
• Paste/hydraulic fills with lower solids content and/ or poor gradation
• Segregation-prone fills like cemented hydraulic and aggregate fills

What are​​ the unique features of MasterRoc MF 308?

• Improves rheological behavior in low- to high-density slurries as well as in cemented aggregate fills
• Improves cohesion and captivation of fines and binder inside the fill mass
• Lubricates the fill
• Acts as a pumping aid
• Improves flow characteristics
• Enhances robustness of the fill

What are the bene​fits of MasterRoc MF 308?

• Enhances pumping and self-leveling of the fill
• Reduces segregation
• Facilitates production of highly fluid paste and more coherent and homogenous cemented aggregate fills
• Provides stability during transportation and placement
• Improves plastic behavior and lowers porosity of the fill
• Increases compressive strengths
• Reduces slime in the slump
• Reduces water addition requirements
• Improves reliability of fill delivery and increased production
• Permits mix optimization and/or cost savings due to binder reduction (cement/slag cement/fly ash)
• Makes mixes less sensitive to solid content variation and/or water demand
• Improves mechanical properties of self-leveling fluid, making in-situ properties more consistent
• Improves flow characteristics resulting in less wear and tear on pumps and pipes, thus extending equipment service life
• Does not affect setting times within the recommended dosage rate