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[45650] Artykuł: INFLUENCE OF MINERAL ADDITIVES PROPERTIES OF CONCRETE(WPŁYW DODATKÓW MINERALNYCH NA WŁAŚCIWOŚCI BETONU)Czasopismo: Structure and Environment Tom: 8, Zeszyt: II, Strony: 91-96 ISSN: 2081-1500 Opublikowano: Wrzesień 2016 Liczba arkuszy wydawniczych: 1.00 Autorzy / Redaktorzy / Twórcy Grupa MNiSW: Publikacja w recenzowanym czasopiśmie wymienionym w wykazie ministra MNiSzW (część B) Punkty MNiSW: 9 Pełny tekst Keywords: compressive strength  water absorption  capillary action  dolomite mineral  |
The article discusses the results of laboratory tests on the impact of dolomite mineral dust on the rheological properties of the concrete mix. The addition of mineral dust rise to an overall improvement in the studied parameters (absorption, capillary), by sealing the grout. The impact of their actions on the rheological properties depend largely on the grain composition and the degree of grinding. Rheological properties of concrete mixtures of flours stone depends on the amount and geometrical properties of these additives. The use of additives enforces the need for their treatment by the process of drying, screening and segregation. The effect of the presence of meal stone to change the rheological properties of fresh concrete (density, consistency) and hardened concrete parameters (compressive strength, water absorption, capillary action).