Fluid loss additives are used to prevent dehydration of the cement slurry and premature setting. The most common additives are:
• Organic polymers (cellulose) 0.5 – 1.5%
• Carboxymethyl hydroxyethyl cellulose (CMHEC) 0.3 – 1.0% (CMHEC will also act as a retarder)

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