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Question:

Iron ore waste rock can do building materials? You said SiO2 content of more than 65%, that is less than 65% sulfur can be used? Thank you!

Iron ore waste rock can do building materials? You said SiO2 content of more than 65%, that is less than 65% sulfur can be used? Thank you!

Answer:

Silicate products Type: autoclaved silicate products, lime sand bricks, requirements for siliceous materials, in addition to chemical composition and impurity limits, the sand particles are graded, less than 100 mesh (015mm) particle content Less than 25-30% Aerated concrete blocks, sand can be less than 200 mesh; no burned no steamed brick (such as cement brick, foam brick, etc), siliceous materials and lime sand brick requirements; waste rock for concrete Stone, gravel, to maintain the chemical composition requirements, but also on the gravel for particle strength test, to achieve the required performance after the unit dare to apply Ask the answer so, hope to be useful to you
5%, SO3 <4%; 2) Mica impurities ≤ 2%
Waste materials production of building materials, different building materials on the siliceous materials have technical quality requirements: 1) chemical composition requirements of China's silicate construction products of silicon raw materials chemical composition requirements: SiO2 ≥ 65%, Fe2O3 <15% MgO <5%, Na2O, K2O <2

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