Ferromanganese ore slag concrete blending material and producing method thereof
A technology of concrete and admixtures, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve problems such as only staying, achieve low cost, reduce pollution, and improve the environment
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[0020] Example 1:
[0021] The weight percentage of the raw material components of the ferromanganese slag admixture is: 100% ferromanganese slag.
[0022] (1) Dry the waste manganese slag with a weight percentage of 100% until the moisture content is less than 1%.
[0023] (2) Add 0.05-0.5% of the weight of ferromanganese slag grinding aid, namely triethanolamine, mix evenly, and grind to a specific surface area of 500m in a ball mill 2 / Kg, the manganese iron slag admixture is obtained.
[0024] Calculated per cubic meter of concrete, cement 300Kg, manganese iron slag admixture 33Kg, water-cement ratio 0.54, sand ratio 0.46, superplasticizer FDN-90003.33Kg
[0025] The configured concrete has a 7-day compressive strength of 20.7MPa and a 28-day compressive strength of 29.9MPa.
Example Embodiment
[0026] Example 2:
[0027] The weight percentage of the raw material components of the ferromanganese slag admixture is 98% of the ferromanganese slag and 2% of natural gypsum.
[0028] (1) Dry the waste manganese slag with a weight percentage of 98% until the moisture content is less than 1%.
[0029] (2) Add 0.2% of the weight of ferromanganese slag grinding aids, namely sodium carbonate and sodium silicate, mix them evenly, and put them in a ball mill to grind to a specific surface area of 400m 2 / Kg.
[0030] (3) Add 2% by weight of the active activator, namely natural gypsum, and mix evenly to obtain the manganese iron slag admixture.
[0031] Calculated per cubic meter of concrete, cement 238Kg, manganese iron slag admixture 102Kg, water-cement ratio 0.54, sand ratio 0.45, superplasticizer FDN-9000 3.4Kg
[0032] The configured concrete has a compressive strength of 18.2MPa for 7 days and a compressive strength of 26.4MPa for 28 days.
[0033] The slump of the above two ca...
Example Embodiment
[0034] Example 3:
[0035] The weight percentage of the raw material components of the ferromanganese slag admixture is 98% of the ferromanganese slag and 2% of natural gypsum.
[0036] (1) Dry the waste manganese slag with a weight percentage of 98% until the moisture content is less than 1%.
[0037] (2) Add 0.3% of the weight of ferromanganese slag grinding aids, namely triethanolamine and sodium silicate, mix them evenly, and put them in a ball mill to grind to a specific surface area of 600m 2 / Kg.
[0038] (3) Add 2% by weight of the active activator, namely natural gypsum; mix evenly to obtain the manganese iron slag admixture.
[0039] Calculated per cubic meter of concrete, cement 520Kg, manganese iron slag admixture 130Kg, water-cement ratio 0.28, sand ratio 0.34, superplasticizer FDN-9000 6.5Kg
[0040] The configured concrete has a 7-day compressive strength of 58MPa and a 28-day compressive strength of 65.7MPa.
[0041] This example shows that the concrete prepared ...
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