Ultra high performance concrete (UHPC) refers to a cement-based concrete material with super strong mechanical properties, high toughness, ultra-high durability, and excellent pouring and forming performance. UHPC is formulated by selecting highly active micro materials and using the most compact and fiber-reinforced technology.
High strength and toughness materials such as Portland cement, silica fume, quartz powder, fine silica sand, high-efficiency water reducers, water, steel, or organic fibers are usually used as raw materials.
Material characteristics
① Strong plasticity
High density, high surface smoothness, delicate texture, with a warm and jade like feeling, coupled with its excellent physical properties and strong plasticity, it can achieve more complex and varied shapes.
② High strength and strong toughness
High compression and bending resistance (can be used as a suspended roof), low shrinkage, and high pull-out resistance of the back bolt. At the same time, it has a light total weight, high strength, and does not require additional structural support. It can be used as a large-scale formwork. It has ultra-high toughness, achieving an effective balance between compressive strength and flexural strength.
③ Strong durability
It has ultra-high density and durability, and can prevent harmful substances from penetrating for a long time under conditions such as chloride ion erosion and sulfoaluminate erosion. It also has strong self-healing ability and excellent waterproof, anti-seepage, and anti pollution effects.
④ Fireproof and impact resistance
UHPC has strong fire resistance, explosion resistance, and impact resistance, and can be widely used in military engineering, bank vaults, and other thin-walled projects. With appropriate reinforcement and steel structure performance, it is comparable.
⑤ Strong sustainability
UHPC has strong sustainability and can reduce building energy consumption, achieve safe and civilized construction, improve construction speed, and shorten building cycles.
The application range of UHPC materials is very wide, mainly covering the fields of architecture, landscape, bridge construction, municipal pipelines, roads, railway industries, special environments, etc
