Sodium Metasilicate Anhydrous (SMS) is typically dry blended and utilized as an extender in oilwell cements. When SMS is used, light weight slurries can be formulated with the lime present in cement or by the addition of calcium chloride to produce a calcium silicate gel. The resulting gel structure creates enough viscosity to allow for additional mix water without creating the problem of excess free water. Another usage of SMS is the acceleration of the set time of certain cement blends.
Features and Benefits:
- White granules.
- With a composition of foamer, foam stabilizer and fluid loss control additive.
- Normal dosage: 0.1 % – 3.0 % (BWOC) with slurry densities ranging from 1350-1750 kg/m³.
- Can be added directly into the powder cement blend via the admix bottle or predissolved into the water before mixing. When pre-hydrating the SMS in water it is important that Calcium Chloride be added prior so that the gel formation occurs.
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