Leca AZ

LECA Concrete

What is Lightweight Concrete?

Lightweight concrete is defined by both ASTM and EN standards as a type of concrete that has an in-place density of less than 2000 kg/m³ (125 lb/ft³). This unique property arises from the incorporation of lightweight aggregates, such as expanded clay which reduce the overall density without compromising strength.

LECA Concrete: A Range of Options

Non-Structural:

700 kg/m³ at 3 MPa

1000 kg/m³ at 5 MPa

1200 kg/m³ at 15 MPa

Structural:

1400 kg/m³ at 25 MPa

1600 kg/m³ at 35 MPa

1800 kg/m³ at 45 MPa

LECA Concrete Example

Types of Lightweight Concrete

Structural Lightweight Concrete

This type adheres to specific performance criteria, maintaining adequate compressive strength while being significantly lighter than traditional concrete. Structural lightweight concrete is particularly beneficial where weight reduction is essential without sacrificing the integrity of the structure.

Applications of Lightweight Structural Concrete

  • Metal Decks
  • Beams and Columns
  • Bridges
  • High-Rise Buildings

Advantages of Lightweight Structural Concrete

  • Higher strength-to-weight ratio
  • Reduced material usage and transportation costs
  • Enhanced thermal insulation performance
  • Improved seismic performance
Non-Structural Lightweight Concrete Example

Non-Structural Lightweight Concrete

This variation is designed primarily for applications that do not require high strength but provide insulation, sound reduction, or filling. Non-structural lightweight concrete focuses on enhancing thermal and acoustic performance.

Applications of Lightweight Non-Structural Concrete

  • Flooring
  • Screeding
  • Roofing
  • Light Filling

Advantages of Lightweight Non-Structural Concrete

  • Improved energy efficiency due to insulation properties
  • Lower material and labor costs
  • Enhanced workability and faster installation times
  • Reduction of the load on existing structures or foundations
Lightweight Concrete Example