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超高性能混凝土发展现状分析
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Abstract:
UHPC (Ultra-High Performance Concrete)，是一种新兴材料，拥有出色的力学性能，被称为超高性能混凝土。UHPC通常由水泥、硅酸盐、石英粉、钛白粉、矿物质掺合料、化学添加剂等材料制成。超高性能混凝土表现出卓越的强度和耐久性，通常可以达到超过150 MPa的极高强度。UHPC具备出色的耐久性能和尺寸稳定性，适用于需要高强度和长久耐久性的工程项目。它能够抵抗多种力学和环境影响，如冻融、碳化和氯盐侵蚀等。UHPC的制备需要经过精密的控制和特殊的加工工艺，因此其生产成本较高。但是，由于其特殊而突出的性能，UHPC逐渐成为建筑、桥梁、隧道、航空等领域的理想材料。随着国家标准体系改革的不断推进，标准在UHPC领域正发挥着越来越重要的作用。
Ultra-High Performance Concrete (UHPC) is a new type of high-performance material with good mechanical properties. UHPC is usually made of cement, silicate, quartz powder, titanium dioxide, mineral admixtures, chemical additives and other materials. Ultra-high performance concrete has high strength and durability, usually reaching more than 150 MPa; At the same time, UHPC also has excellent durability and excellent dimensional stability, suitable for projects requiring high strength and durability, and can resist a variety of mechanical and environmental effects, such as freeze-thaw, carbonization, chloride salt erosion, etc. The preparation of UHPC requires precise control and special processing technology, so its production cost is high. However, due to its special and outstanding performance, UHPC has gradually become an ideal material for construction, bridges, tunnels, aviation and other fields. With the continuous advancement of the reform of the national standard system, standards are playing an increasingly important role in the field of UHPC.
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