In the past three decades, the construction industry has seen a clear shift from depleting resources of natural sand to replacing them with manufactured or recycled aggregates. Fine aggregate, i.e. sand, has a major impact on the behaviour of the concrete, particularly in the fresh state. Admixtures are playing a vital role in mitigating the challenges that these new sands are bringing. The main challenge areas are sorption- the tendency of particles to absorb and adsorb moisture- and morphology- the geometrical properties of aggregate.

Five iconic roofing projects around the world where Mapei contributed to combining aesthetics, technology, and durability. From historic landmarks like Barcelona’s Hospital de la Santa Creu i Sant Pau and Naples’ Castel Nuovo to contemporary structures such as the New Ethnographic Museum in Budapest, Sharjah Planetarium, and Istanbul Airport, each project reflects Mapei’s expertise. The company’s solutions ensured waterproofing, sustainability, and long-term performance.

The new Sibaritide General Hospital in Corigliano-Rossano, Calabria, stands as one of Southern Italy’s most advanced healthcare facilities, combining precast technology, sustainability, and architectural quality. Mapei and Polyglass played key roles in supplying certified waterproofing systems and high-performance materials for both roofs and interior spaces. Their integrated solutions ensure durability, energy efficiency, and safety while meeting stringent healthcare standards. Supported by rigorous technical supervision and Bureau Veritas certification, the project exemplifies innovation and excellence in modern hospital design.