Viscosity modifier
PAMIX 850
Viscosity modifying admixture
Translated from the Spanish data sheet. Standard designations, ASTM type numbers, figures and units are reproduced unchanged; in case of doubt the Spanish PDF governs.
Description
Pamix 850 is an organic-based liquid admixture designed to control the plastic properties of concrete, minimising the possibility of segregation of the concrete mix and improving pumpability. Depending on its dosage it complies with ASTM C 494, as type S
Recommended applications
- Pumpable concrete.
- Concrete with gap-graded aggregates
- Pervious concrete
- Concrete for flowable fill.
- Self-consolidating concrete.
Advantages
- Improves pumping and finishing of the concrete.
- Minimises segregation problems in the concrete.
- Reduces bleeding in plastic concrete.
- Modifies the viscosity of the concrete, complying with ASTM C 494 as type S
- Helps the stability of the concrete during transport to the job site.
Dosage
Reference dosage 1cc to 8cc per kg of cementitious material
The recommended dosage is between: 1cc to 8cc per kg of cementitious material; to define the appropriate dosage for use in concrete, consult your trusted advisor at PAMIX INTERNATIONAL, S.A., who will make a suggestion according to the use of the concrete; nevertheless, it is advisable to run trials with all the materials to be used in the concrete mix design, taking into account ambient conditions, transport time and placement time of the concrete on site. It is important to define the dosages of the admixtures involved in the mix design.
The best performance of the admixture in the concrete mix is obtained through trials with the materials to be used; by keeping to this practice with the guidance of PAMIX INTERNATIONAL, S.A., you will obtain the best cost–benefit ratio.
To minimise the problems that arise when ambient or concrete temperatures are high, follow the recommendations of the current ACI 305R, “Hot Weather Concreting”. Contains no added chlorides. Consult the Safety Data Sheet before use
Compatibility
Pamix 850 is effective either as a single admixture or as part of a system with other admixtures in the PAMIX line; it is added to the mix independently of other admixtures. It is not compatible with naphthalene-based admixtures.
Packaging
Pamix 850 is supplied in bulk, in 200 L drums and in 1000 litre containers.
The admixture should be kept closed and sealed at all times in its original containers, in a roofed store protected from the weather
Shelf life
12 months in the original unopened container.
Standards and compliance
- ASTMC 494
Data sheet version 2. The PDF is the reference document. Warranty →
Documentation
Support
The laboratory reviews your mix design, proposes dosage and, if needed, modifies it to the customer’s requirement.
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