Most quarry owners only focus on aggregate hardness while ignoring particle roundness. In modern commercial concrete projects, round and uniform aggregate particles provide larger contact areas with cement mortar, improving concrete compactness, compression resistance and durability. Sharp, flaky and irregular stones create internal gaps, leading to concrete cracking and reduced structural strength.

Poor particle roundness is mainly caused by single-stage impact crushing and worn crushing cavities. Such low-quality aggregate can only be used for low-grade filling works with low profit margins. To enter high-value commercial concrete and municipal engineering markets, particle shaping is indispensable.

SMP optimizes full-round shaping technology for all kinds of crushed stones. After jaw crushing and cone laminated fine crushing, materials enter the VSI sand maker for rock-on-rock impact polishing, eliminating sharp edges and flaky particles. The finished aggregate features excellent roundness and uniform gradation.

Aggregate produced by SMP shaping process greatly improves concrete stability, helping aggregate suppliers obtain long-term cooperation rights with concrete mixing plants and high-end engineering contractors, significantly increasing overall project profits.

Keywords: aggregate particle roundness, improve concrete strength, high-quality construction aggregate, stone shaping process, high-performance concrete stone