Product Description
MIRA® 107 is a mid-range water reducer specifically formulated to produce concrete with dramatically enhanced water reduction and slump retention with only slight to moderate retardation. Effective through a wide addition rate range, MIRA 107 combines the benefits of normal and high range water reducers allowing for the ultimate control of the concrete’s placing and finishing properties.
MIRA 107 is an aqueous solution of complex organic compounds, each of which contributes uniquely to the concrete’s final properties. It contains both patented dispersing and finishability agents that provide performance superior to conventional water-reducing products.
MIRA 107 is manufactured under rigid controls which provide uniform, predictable performance and contains no calcium chloride. Supplied as a dark brown, low viscosity liquid, it complies with the requirements of BS 5075, Part 1, BS 5075, Part 3, SS 320 : 1987.
One litre weighs approximately 1.24kg ± 0.02kg.
Features
When MIRA 107 is used within its normal dosage range, the following concrete features are observed:
- Delayed initial and final set of the concretes (typically 1-5 hours).
- Reduction of the concrete mix water by typically 5-15%.
- Improved slump retention.
- Enhanced pumpability and finishability.
Product Advantages
- Superior strength performance
- Excellent slump control
- Ultimate workability and finishability
- Improved concrete rheology
Applications
MIRA 107 enables concrete to be produced with lower water content, improved placement properties, and enhanced slump life which yields a less permeable and more durable concrete.
MIRA 107 is used in ready mix, job site, and concrete paving plants for normal and lightweight concrete and in block and precast plants. It is particularly effective in lean or fly ash and slag compensated mixes.
MIRA 107 also imparts “slickness” to the surface of the concrete making it most appropriate for concrete flatwork as well as slip form work.
Addition Rate
MIRA 107 can be dosed at between 200 and 600mL / 100kg of cementitious material. Optimum addition rate depends on the other concrete mixture components, job conditions, and desired performance characteristics.
Overdosing of MIRA 107 will produce an increase in workability, air content and setting time. The set retardation effect will vary, dependent on ambient temperatures, cement used, and amount of overdose. However, provided correct curing procedures are followed, ultimate concrete strengths will be higher than a corresponding mix or standard admixture dose concrete.
Health and Safety
See MIRA 107 Material Safety Data Sheet or consult GCP Applied Technologies.