|
Super Viscose 1
1/2 Edition:05/01/07
Super Viscose 1
Concrete Admixture
Description
Super Viscose 1 is a third generation superplasticizer for concrete and mortar. It meets the requirements for superplasticizers according to SIA 162 (1989) and prEN 934-2.
Uses
Super Viscose 1 is suitable for the production of site mixed as well as ready-mix concrete.
Super Viscose 1 is used in Summer and for concrete with extended transportation or placing time.
Super Viscose 1 facilitates extreme water reduction, excellent flour properties, optimal cohesion and highest self compaction behavior.
Super Viscose 1 is used for the following types of concrete:
Self compacting concrete (S.C.C.)
Hot weather concrete and concrete with extended transportation or placing time
Concrete with highest water reduction (up to 30%)
High strength concrete
High water reduction and excellent flowability have a positive influence on the above mentioned applications.
Advantages
Super Viscose 1 acts by different mechanisms. Through surface adsorption and sterical separation effect on the cement particles, in parallel to the hydration process, the following properties are obtained:
Strong self compacting behavior, therefore suitable for the production of self compacting concrete (S.C.C.)
Extremely high water reduction (resulting in high density and strengths)
Excellent flowability (resulting in highly reduced placing- and compacting efforts)
Improved shrinkage- and creep behavior
Reduced rate of carbonation of the concrete
Super Viscose 1 does not contain chloride or other, steel corrosion promoting ingredients. It may therefore be used without any restrictions for reinforced- and prestressed- concrete construction.
Technical Data
Basis:
Aqueous solution of modified polycarboxylate Appearance: Yellowish-Opaque Density: 1.08±0.02 kg/l pH: 5.0 ± 1.0 Storage/Shelf life: In unopened, undamaged original container, protected from direct sunlight and frost at temperatures between + 5°C and + 35°C, shelf life is at least 16 months from date of production. Packaging: Non returnable 220 kg drums.
Concrete Production
Dosage
Recommended dosage:
For soft plastic concrete: 0.5 - 1.5 % by weight of cement
For flowing and self compacting concrete (S.C.C.): 1.0 - 1.5 % by weight of cement
Addition
Super Viscose 1 is added to the gauging water or simultaneously with it poured into the concrete mixer. For optimum utilisation of the high water reduction we recommend thorough mixing at a minimal wet mixing time of 60 seconds.
The addition of the remaining gauging water - to fine tune concrete consistency - may only be started after 2/3 of the wet mixing time, to avoid surplus water in the concrete.
Super Viscose 1 2/2 Edition:05/01/07
Concrete Placing
With the use of Super Viscose 1 concrete of highest quality is being produced. The
standard rules of good concreting practice (production as well as placing) must also be observed with Super Viscose 1 concrete. Fresh concrete must be cured properly
Important Notes
Flowing Concrete, S.C.C.
Super Viscose 1 is also used to produce flowing and self compacting concrete (S.C.C.). For these, special mix designs are required.
Frozen Super Viscose 1
Frozen Super Viscose 1 may be used after it has been slowly thawed at room temperature and intensively mixed.
Combinations
Super Viscose 1 may be combined with the following Namikaran products:
Rapid
FG 901
Silica Fume
Retarder
Pre-trials are recommended if combinations with the above products are being made. Please consult our technical service.
Safety Instructions
Safety precautions:
In contact with skin, wash off with soap water.
In contact with eyes or mucous membrane, rinse immediately with clean warm water and seek medical attention without delay.
Ecology:
Do not dispose of into water or soil, but according to local regulations.
Toxicity:
Non-toxic under the relevant Swiss Health and Safety Codes.
Transport:
Non-hazardous.
تاريخ بروز رساني : يكشنبه 17/07/90 ساعت 08:46
| 
