Rapid-setting Accelerator
for White Portland Cement
(Type WCS-1/2)
● Type WCS Rapid-setting Accelerator for White Portland Cement, also named Rapid-setting Early-strength Admixture or Rapid-setting Additive for white cement, is a kind of professional admixture for White Portland Cement. Type WCS can cause white cement products or concrete rapid setting, fast hardening, high early strength. So it can make white cement products get short setting time and rapid demoulding.
● Type: WCS-1, WCS-2
● Type WCS-1 is used for making white cement products with good fluidity to be easy infusing the mould, type WCS-2 is used for low or no fluidity goods such as sculpture and relief.
● Served Cement Kinds: White Portland Cement (also named White Cement)
Characteristics
● Appearance: white or off-white color powder
● Rapid-setting: effectively reducing setting time including initial setting and final setting; more added quantity of WCS-1 and more high temperature of mixed water, will cause more short setting time and more fast hardening.
● High-strength and Early-strength: effectively increasing early and final strength of white cement products, more mixed quantity of type WCS will bring more high strength
● Fast-hardening Demoulding: to adjust mixed quantity of type WCS to suitable ratio and improving mixing water temperature, it can get the effect of fast demoulding within about 30 minutes to 1 hour, or more short time.
● Good coherence and crack proof
● It does not belong to flammable solids, corrosives, toxic substance, dangerous goods.
● non-burned
● It is environmental friendly to surroundings, free of poisonous heavy metal contents such as chromium(Cr), plumbum(Pb), hydrargyrum(Hg), etc.
Application
Type WCS Rapid-setting Accelerator is suitable for making the following products made of white cement:
● Artware, decorative articles, adornment, ornamental bricks
● Cement Products with European style, Landscape arts
● Wall Plate, Cement Bricks, Flowerpot
● Paint, Mortar of white cement
● Other products and constructer of white cement
Usage
● Recommended Added Quantity: 3.0 to 10.0% of cement weight.
The factual final added quantity must be confirmed as per performance request of mortar or concrete, and different ratio and change of mixing materials, and different production and construction condition; the test result in labs will be as the final added data.
When batches of cement and type WCS-1 are changed, for the new and exact added quantity, the trial in Labs must be done again.
● W/C Ratio recommended: about 0.30, or to adjust the suitable ratio due to different cement/sand ratio or as per the factual request
● Temperature of working room and mixing water: normal temperature; if the temperature of working condition is lower or for getting the faster hardening and demoulding time, it is the best to improve the temperature of mixing water 50℃-60℃, but the recommended highest water temperature not more than 60℃.
● Mixing Process: first to mix type WCS in dry together with white cement and sand to even, then to add mixing water and continue to mix to even, recommended mixing time in dry and wet not less than 3 minutes.
● After demoulding, the cement products must be cured in wet in time.
● Blocked or wetted cement can not be allowed to use again.
● When the fluidity of cement mortar is not enough good, to recommend to use type WRA-2 Water-reducing Admixture. The recommended used quantity of type WRA-2 is 0.1 to 0.3% of cement by weight.
Transport, Storage and Package
● Transport: Classification for conveyance - not required. During the transportation of a large of amount of batteries by ship, trailer or railway, do not leave them in the places of high temperatures and do not allow to exposed to moisture. During the transportation do not allow the packages to be fallen down or damaged.
● Storage: to be stored with intact sack in dry. If the sack open, it should be use soon to avoid to be damaged.
● Package: plastic woven bag with sole PP bag, 25kg/bag, and /or big bag.