MasterRoc MF 308

MasterRoc MF 308

High-performance admixture for improved homogeneity, pumpability and placeability

How does MasterRoc MF 308 work?

MasterRoc MF 308 admixture is an aqueous solution of a high-molecular weight synthetic copolymer 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 uses:

• 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 benefits 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​