The major historic use of pozzolan that has been well identified and well documented. Pozzolan is acknowledged to be the preeminent product in the industry. When Lassenite is used with Portland cement, the calcium hydroxide (hydrated lime), liberated during hydration, slowly combines with the pozzolan, forming a highly cementious compound contributing to strength, water tightness, and other properties.
For the architectural concrete industry, the company produces Lassenite SR Pozzolan which provides designers a method of obtaining desirable earth-tone colors in precast concrete panels, block, columns and the like while simultaneously replacing a portion of the cement normally used.
Lassenite SR has been used within the oil and gas industry since the late 1970’s. Lassenite SR pozzolan/Portland cement slurry mixes have had a wide usage under diversified field conditions. Proven in thousands of wells and supported by extensive laboratory data, use an additive in well cementing offers many advantages.