Water Well Cementing - 1975

Hydrogeology, Geology, & Environmental Issues / Field Methods & Procedures

Campbell and Lehr reported in 1975 in the Water Well Journal that bentonite clay as well as other additives are commonly added in amounts from three to five pounds per sack of cement, in which case about 6.5 gallons of water per sack is required.

For definition of terms (Glotfelty (2022)

Bentonite assists in the suspension of the cement particles, which reduces shrinkage of the annular seal. The bentonite and water should be be mixed before the cement is added to the bentonite-water suspention.

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