Prestressed lining concrete as well as preparation method and construction method thereof

The invention provides prestressed lining concrete as well as a preparation method and a construction method thereof, and relates to the field of building materials. The prestressed lining concrete comprises the following components: cement, fly ash, slag powder, sand, broken stone, water, a super p...

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Bibliographische Detailangaben
Hauptverfasser: XIE XIANGMING, DENG XUANTAO, YAO CHUKANG, WANG YONGJIAN, LIANG JUN, YU QINGSHAN, HU LEI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention provides prestressed lining concrete as well as a preparation method and a construction method thereof, and relates to the field of building materials. The prestressed lining concrete comprises the following components: cement, fly ash, slag powder, sand, broken stone, water, a super plasticizer and a retarder. In the implementation process, two kinds of slag powder with different specific surface areas are adopted to reduce the shrinkage rate of hardened concrete and reduce the adiabatic temperature rise of the concrete, so that the anti-cracking effect of the concrete is improved; in addition, a super plasticizer and a retarder are added into the concrete as additives to improve the physical property, the setting time, the mechanical property and the durability of the concrete, and finally the concrete has the advantages of low early hydration heat, high strength and good durability. The engineering construction requirements can be met, the engineering quality can be ensured, and the construct