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Patent classifications
C
CHEMISTRY; METALLURGY
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C04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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C04B
LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
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22/00
Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators; or shrinkage compensating agents
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C04B22/08
Acids or salts thereof
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C04B22/14
containing sulfur in the anion, e.g. sulfides
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C04B22/142
Sulfates
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C04B22/143
Calcium-sulfate
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