Laterlite - CENTROSTORICO CALCESTRUZZO

CENTROSTORICO CALCESTRUZZO is the ready-mixedstructural lightweight concrete in bags based on Lecapiù expanded clay (moisture absorption approx.‎ 1% at 30') with compensated shrinkage and controlled drying, which is also suitable for the direct laying of floors.‎ The low weight of approx.‎ 1500 kg/m³ ensures a saving of more than 40% compared to conventional concrete (approx.‎ 2400 kg/m³).‎ The compressive strength, class LC 25/28, is comparable to traditional site concretes.‎ The addition of special polypropylene fibres increases the mechanical properties of structural concrete, improving ductility, fatigue strength and durability.‎ Thanks to the specific formulation, it avoids the formation of a finishing screed in the presence of reduced thickness.‎ CentroStorico concrete, such as Leca® CLS 1400 and Leca® CLS 1600, combined with the Chemical Connector is the solution certified with experimental tests by the Politecnico di Milano to increase the load-bearing capacity of the slab by up to 100%.‎ ADVANTAGES Lightweight The reduced weight, approx.‎ 1,500 kg/m³, ensures a saving of more than 40% compared to traditional concrete (approx.‎ 2,400 kg/m³).‎ Resistant The compressive strength, class LC 25/28, is comparable to traditional concretes made on site.‎ Fibred The addition of special polypropylene fibres increases the mechanical properties of structural concrete, also improving its ductility (the ability to withstand further loads even after the first crack), fatigue strength and durability.‎ Compensated shrinkage The addition of specific anti-shrinkage additives in combination with polypropylene fibres and a special formulation makes it possible to reduce concrete shrinkage to within 400 μm/m at 28 days; more than half the shrinkage of a traditional concrete, it is particularly advantageous in cases of direct laying of flooring.‎ Controlled drying Direct laying of parquet flooring (in combination with Primer CentroStorico).‎ Suitable for direct laying of flooring.‎ Thanks to its specific formulation, it avoids the formation of the finishing screed in the presence of reduced thicknesses.‎ In compliance with the"law" Conforms to the Technical Standards for Construction (Ministerial Decree 17/01/18).‎ Safe It has a constant and controlled grain size curve and binder dosage, synonymous with quality concrete.‎ Easy to handle and versatile Pre-mixed in a bag, it requires only the addition of mixing water: the convenient 16 L bags (approx.‎ 20 kg) ensure practical handling of the material even on the most difficult building sites.‎ Incombustible Composed of LecaPiù and binders, it has a Euroclass A1 (non-combustible) fire reaction rating: a guarantee against fire.‎ Pumpable It can be pumped with the normal pneumatic pumps used for sub-bases.‎ FIELDS OF USE Creating collaborating castings on wooden, latero-cement and concrete slabs.‎ Casting for the direct laying of flooring.‎ Wherever concrete with good lightness and strength is required on site.‎ Structural castings in accordance with Ministerial Decree 17 January 2018 'Technical Regulations for Construction' and the relevant 'Circular' (Instructions to Technical Regulations for Construction).‎ Application for exteriors and interiors.‎