Stalite structural lightweight aggregate is a rotary kiln expanded slate lightweight aggregate. Stalite’s light weight, low absorption and superior particle strength make it easy to mix and to pump during placement. Stalite’s particle strength allows it to achieve compressive strengths in excess of 10,000 psi (68.9 MPa). Stalite is equally at home in cast-in-place or precast concrete applications and is both US and EU certified and compliant.