CONCRETE COMPOSITION REVEALING EARLY-STRENGTH

CONCRETE COMPOSITION REVEALING EARLY-STRENGTH

PURPOSE: A concrete composition is provided to obtain the early strength expressing performance by including high-early strength type cement with the high fineness and high-early strength type polycarboxylate(PC)-based admixture. CONSTITUTION: A concrete composition with the early strength expressin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KIM, DONG HYUN, KEUM, KYOUNG HUN, JUNG, YANG HEE, LEE, WON AM, LEE, JAE HYUN, SONG, YOUNG CHAN, LEE, WOONG JONG, PYEUN, WOO SIG, KIM, DONG KYU, KIM, YONG RO
Format: Patent
Sprache:eng ; kor
Schlagworte:
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:PURPOSE: A concrete composition is provided to obtain the early strength expressing performance by including high-early strength type cement with the high fineness and high-early strength type polycarboxylate(PC)-based admixture. CONSTITUTION: A concrete composition with the early strength expressing performance includes high-early strength type cement and high-early strength type PC-based admixture. The fineness of the high-early strength type cement is between 4,000 and 4,500cm^2/g. The high-early strength type PC-based admixture is mixed with an amine-based high-early strengthening agent. 0.2-2.5 weight% of high-early strength type PC-based admixture is included, based on the weight of the high-early strength type cement. 5-20 weight% of the amine-based high-early strengthening agent is included, based on the weight of the high-early strength type PC-based admixture. 3-5 weight% of anhydrite is included, based on the weight of the high-early strength type cement.