Ace the CSLB Concrete C-8 License Test 2026 – Lay a Solid Foundation for Success!

Blended cement combines a Portland cement base with supplementary cementitious materials to tailor performance. In practice, the cement portion is typically Type II or Type V, and SCMs such as fly ash, slag, or silica fume are added to create the blended product. This pairing allows improved durability, reduced heat of hydration, and better sulfate resistance, depending on the needs of the mix. It’s not required to use Type I, and SCMs are a defining part of blended cement, so using only Type II or excluding SCMs would not describe the typical blended cement practice.