FIELD: chemistry.
SUBSTANCE: claimed invention relates to binding composition, consisting in fact of (i) accelerator, which contributes to formation of ettringite nuclei, (ii) source of potassium sulphate and (iii) ettringite-forming cement, (iv) water and (v) filler; in which ettringite-forming cement includes C4A3S* or mixture of cement components, which form C4A3S* when applied; in which C stands for CaO, A stands for S* stands for SO3, and ettringite-forming cement is present in quantity from 20 to 80 wt % and composition has minimal ultimate strength under inorganic pressing, constituting 1500 pounds per square inch (10.3 MPa), in test in accordance with ASTM C1140 and/or C1604 15 minutes after laying. The invention also relates to method of its application in concrete, formed from it. The invention is developed in dependent claims of the invention formula.
EFFECT: increase of early strength.
9 cl, 13 tbl
| Title | Year | Author | Number |
|---|---|---|---|
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|
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