High-Strength Concrete

摘要

Developments in materials technology (notably the use of microsilica and superplasticisers) have led to concretes with much higher strengths. In this Current Practice Sheet, 'high-strength concrete' (HSC) means concrete with a compressive strength above 80MPa and embraces conventional concretes that can be used in normal construction rather than special cement-based materials such as reactive powder concretes or heavily fibre-reinforced concretes. The term 'high-performance concrete' encompasses a wider range of properties, such as enhanced durability, than simply high strength. HSC is just one of a range of high-performance concretes. There is no unique composition for HSC. It can be made with a wide range of materials, producing differing concrete properties. But certain generalisations can be made about properties.