Method for preparing low-shrinkage high-strength concrete by adopting internal curing microcapsules

The invention discloses a method for preparing low-shrinkage high-strength concrete by adopting internal curing microcapsules, which comprises the following steps: calculating according to concrete mix proportion parameters to obtain a calculated value of an internal curing water-binder ratio, incre...

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Bibliographische Detailangaben
Hauptverfasser:	TAN YANBIN, ZHONG XINHUA, QU YANAN, QIU ZHIHUI, LI HUAJIAN, SU WANYU, XIE YONGJIANG, LI LIANJI, WANG JIAHE, LI XIANGTAO, KONG QINGXIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTEDFOR SPECIFIC APPLICATION FIELDS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LIME, MAGNESIA MEASURING METALLURGY PERFORMING OPERATIONS PHYSICS PREPARING CLAY PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL,e.g. PLASTER REFRACTORIES SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER SLAG TESTING TRANSPORTING TREATMENT OF NATURAL STONE WORKING CEMENT, CLAY, OR STONE
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Beschreibung
Zusammenfassung:	The invention discloses a method for preparing low-shrinkage high-strength concrete by adopting internal curing microcapsules, which comprises the following steps: calculating according to concrete mix proportion parameters to obtain a calculated value of an internal curing water-binder ratio, increasing the calculated value by 0.01-0.02, and determining the internal curing water-binder ratio; the mass water absorption rate of the internal curing microcapsules is tested, and the dosage of the internal curing microcapsules is obtained through calculation; the internal curing microcapsules are used for replacing the fine aggregate in an isovolumetric mode, and the low-shrinkage concrete mix proportion is obtained through calculation; the internal curing microcapsules are put into the mixing water and the internal curing water to be soaked for 3-5 days, stirring of the low-shrinkage concrete is conducted, and pouring forming is conducted. The invention provides a novel method for preparing low-shrinkage high-str