A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses an antifatigue basic magnesium sulfate cement which is composed of the following components in percentage by mass: 42-58% of magnesium oxide, 18-25% of magnesium sulfate heptahydrate, 10-15% of industrial waste residue powder, 5-13% of white slag, 3-5% of mineral admixture, 4-6% of straw, 2-4% of desulfurized gypsum, 3-5% of fly ash and 1-2% of thickening time control agent. The appropriate additives are added into the magnesium oxysulfate cement to form a new basic magnesium sulfate phase and generate the antifatigue basic magnesium sulfate cement which has completely different properties and characteristics from the traditional magnesium oxysulfate cement. The main hydration product is high-strength 517 whisker. The antifatigue basic magnesium sulfate cement belongs to novel special cement which has the advantages of whisker self-formation, high strength, high toughness, high folding ration, carbonization resistance, salt resistance, hydrothermal resistance, seawater resistance, impact resistance, fatigue resistance, reinforcing steel rust resistance, high durability and long service life.
The invention discloses an antifatigue basic magnesium sulfate cement which is composed of the following components in percentage by mass: 42-58% of magnesium oxide, 18-25% of magnesium sulfate heptahydrate, 10-15% of industrial waste residue powder, 5-13% of white slag, 3-5% of mineral admixture, 4-6% of straw, 2-4% of desulfurized gypsum, 3-5% of fly ash and 1-2% of thickening time control agent. The appropriate additives are added into the magnesium oxysulfate cement to form a new basic magnesium sulfate phase and generate the antifatigue basic magnesium sulfate cement which has completely different properties and characteristics from the traditional magnesium oxysulfate cement. The main hydration product is high-strength 517 whisker. The antifatigue basic magnesium sulfate cement belongs to novel special cement which has the advantages of whisker self-formation, high strength, high toughness, high folding ration, carbonization resistance, salt resistance, hydrothermal resistance, seawater resistance, impact resistance, fatigue resistance, reinforcing steel rust resistance, high durability and long service life.
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