The Influence of Mineral Additives on the Properties of Concrete with High Performance Properties : Master's Thesis

Beton ultravisokih performansi je superplastificirana smjesa silicijevog dioksida i cementa s vrlo niskim vodocementnim omjerom, koju karakterizira prisutnost finog kvarcnog pijeska. Postiže tlačne čvrstoće veće od 200 MPa te izvrsnu izdržljivost. Njegova proizvodnja zahtjeva veliku količinu cementa, koja se smanjuje upotrebom mineralnih dodataka. Upotrebom velikih količina vrlo finih mineralnih dodataka, kao što su silikatna prašina i metakaolin postiže se vrlo visoka čvrstoća i trajnost u betonu ultravisokih performansi što je povezano s vrlo gustom matricom.Ultra-high-performance concrete is a superplasticized mixture of silica and cement with a very low water-cement ratio, characterized by the presence of fine quartz sand. It achieves compressive strength greater than 200 MPa and excellent durability. Its production requires a large amount of cement, which is reduced by the use of mineral additives. The use of large amounts of very fine mineral additives, such as silicate dust and metakaolin, achieves very high strength and durability in ultra-high-performance concrete, which is associated with a very dense matrix