Accelerators

An anhydrous pellet form of calcium chloride (CaCl2). It is the most widely used and most effective of all cement accelerators in drilling fluid additives. Normally 1 to 3% calcium chloride based on the cement is used. Calcium chloride is added to drilling fluids to shorten the setting time and/or accelerate the hardening process. It can also limit corrosion and improve the performance of mud systems.

OGC-60 is used to shorten the set time and improve the expansion of Portland Cements. It is widely used in the preparation of thixotropic cements where high early-strength cement is required, especially where gas migration is a problem. OGC-60 product sheet

Processed Lime is Calcium Oxide (CaO) sometimes referred to as quicklime or hotlime. The presence of calcium in cement is a well-known cement accelerator. The combination of the calcium present in Processed Lime and its reactivity characteristics when mixed with water produces a very effective cement accelerator. Processed Lime product sheet

Sodium Sulphate (Anhydrous Na2SO4 also referred to as Sodium Sulfate) is commonly referred to as salt cake. Sodium Sulphate reacts with cement hydration products such as calcium hydroxide to form calcium sulfate. The calcium sulfate reacts with aluminates having an expansive effect on cement. Improved cement bonding is one of the benefits of using Sodium Sulphate in […]