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US 10,369,087 B2Granted
Rapid-setting hydraulic binder composition
AssigneeMaruchi
InventorsSung Wook Jang, Kye Hong Cho, Jin Sang Cho, Moon Kwan Choi, Ki Yeon Moon
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Abstract
The present invention relates to a rapid-setting hydraulic binder composition and, more specifically, to a hydraulic binder composition, which contains tricalcium aluminate (C3A) and dodecacalcium heptaaluminate (C12A7), and thus is rapidly set, has an easily adjustable setting time, and is bio-friendly.
Claims10
A rapid-setting hydraulic binder composition, comprising:
- Portland cement calcined at a low temperature of 800° C. to 1,250° C.;
- and
- calcium hydroxide,
- wherein the Portland cement comprises tricalcium aluminate (C3A) and dodecacalcium heptaaluminate (C12A7),
- wherein content of the C12A7 is equal to or less than 1.5 times that of the C3A by weight, and
- wherein an average particle size of the calcium hydroxide is 15 micron or less, and the calcium hydroxide is contained at 3 to 7% of the Portland cement by weight.
3 more elements
Dependencies are inferred from the claim text.