DESCRIPTION of MARKPLAST SP-10
MARKPLAST SP-10 is a Superplasticiser with high strength properties based on Sulphonated Naphthalene Formaldehyde polymer. It is a liquid plasticizing admixture for cement and mortars. It has a powerful dispersing and deflocculating effect on the particles of cement. It makes the concrete flowable with an added advantage of high early and long term strength. It allows concrete to be easily compacted with minimum vibrations.
FEATURES / ADVANTAGES
- It controls the rate of setting of concrete and mortars.
- It improves workability and easier handling.
- It does not contains chloride hence does not corrode reinforcement.
- It can be used even for fly ash and slag cement concrete.
- It retains the workability of concrete.
- It reduces shrinkage and permeability of hardened concrete.
- It eliminates formation of cold joints between subsequent pours in mass of structural concrete
- It increases the strength of concrete due to its water reduction property.
|Color & appearance||Dark brown low viscous liquid|
|Relative density at 250C||1.230 ± 0.02gms/cc|
|PH Value||Min. 6|
- IS 9103, Superplasticiser Retarding type.
- BS: 5075 PART 3
- ASTM: C–494, Type–G
DIRECTIONS FOR USE
Normal dosage range of MARKPLAST SP-10 is 0.5 to 1.8 % by weight over cementations materials including PFA, GGBFS and Microsilica/metakaolin. The optimum dosage to meet the specific requirement should always be determined by conducting trial mixes using the materials and conditions that will be experienced in use. Because of variations in job conditions, concrete materials and climatic conditions dosage rates may vary in such cases, contact our CCPL (Construction chemicals) representative.
EFFECT OF OVERDOSAGE
An overdosing of MARKPLAST SP-10 can result in the following.
- Delay of initial & final set of concrete.
- Increase in plastic shrinkage
- Increase in air entrainment.
- Severe bleed & segregation of mix
- Due to slight overdosing of MARKPLAST SP-10 the ultimate compressive strength of concrete cannot be get affected, providing it is properly compacted & cured. Due allowance should be made for the effect of fluid concrete pressure on formwork, & stripping time should be monitored.
DIRECTION FOR USE
- Stir well the material before use
- MARKPLAST SP-10 is ready to use liquid which is dispensed in to the concrete together with the mixing water.
- The dispersion effect is higher if it is added to the damp concrete after 60 to 70% of mixing water has been added.ded. Thorough mixing is essential
- Not recommended to add in dry aggregates and cement.
MARKPLAST SP-10 will retain the workability of concrete approx. up to 2 hrs. @250C. It retains the workability of concrete in proportion to the amount of product dosage used for trials. The workability loss is dependent on factors such as temperature, type of cement, type of aggregate, the initial workability of mix and methods of transportation of concrete etc.
Compatible with all types of Portland cements, slag & pozzolans such as fly ash, Microsilica/ metakaolin. MARKPLAST SP-10 is compatible with other water reducing admixtures, air entertainers, retarders, accelerators, corrosion inhibitors when added separately in to the mix.
MARKPLAST SP-10 is supplied in 5, 50 and 250 kg drums or in bulk as per requirements.
STORAGE & SHELF LIFE
- Store the material in a cool & dry place. (Preferably at @300C temp.)Store under cover, out of direct sunlight and protect it from extremes of temperatures.
- Shelf life is one year from the date of manufacturing when stored in undamaged, unopened, original sealed packaging.
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