24. Lightweight Concrete (LWC)
The chapter focuses on the innovations in concrete technology, particularly Lightweight Concrete (LWC) and High-Strength Concrete (HSC), highlighting their properties, materials, applications, and testing methods. It discusses the increasing demand for these specialized concretes in modern construction, as well as the challenges and innovations associated with them. Additionally, sustainable considerations and future research trends in concrete are addressed.
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1.1Definition
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1.4Materials Used
What we have learnt
- Lightweight concrete has a density between 800–2000 kg/m³, resulting in reduced dead loads and improved thermal insulation.
- High-strength concrete, with compressive strengths exceeding 60 MPa, is essential for structures requiring reduced dimensions and high durability.
- Innovations such as fiber reinforcement and self-healing properties in concrete are shaping the future of construction materials.
Key Concepts
- -- Lightweight Concrete
- A type of concrete with lower density achieved by using lightweight aggregates or incorporating air voids.
- -- HighStrength Concrete
- Concrete with a compressive strength greater than 60 MPa, used in demanding structural applications.
- -- SelfCompacting Concrete
- A concrete mix that flows under its own weight and consolidates without mechanical vibration.
- -- FiberReinforcement
- The incorporation of fibers into concrete to enhance its tensile strength and ductility.
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