High-strength white concrete and preparation method thereof

Abstract

The invention belongs to the technical field of building materials, and relates to concrete, particularly to high-strength white concrete and a preparation method thereof. The technical scheme is thatthe concrete is prepared from the following components in parts by weight: 70-100 parts of white Portland cement, 10-30 parts of white mineral powder, 10-30 parts of white limestone powder, 5-15 parts of metakaolin, 5-10 parts of titanium dioxide, 100-200 parts of river sand, 120-150 parts of light-color aggregate, 35-50 parts of water, 1-3 parts of a water reducing agent, 0.2-0.5 part of a retarder, 5-10 parts of carbon quantum dots and 5-8 parts of sodium chloropalladate. According to the high-strength white concrete and the preparation method thereof provided by the invention, the carbon quantum dots and the sodium chloropalladate are added, so that the early heat release rate of the concrete is reduced, and the strength and the cracking resistance of the concrete are improved; and icenucleation is inhibited, and white concrete is prevented from being corroded and discolored after being covered by ice and snow in severe cold areas.

Description

technical field [0001] The invention belongs to the technical field of building materials and relates to concrete, in particular to high-strength white concrete and a preparation method thereof. Background technique [0002] With the development of social economy, people's requirements for buildings are not limited to basic functions, but also have higher and higher requirements for aesthetics and decoration. White fair-faced concrete is favored by people for its unique appearance. At present, white fair-faced concrete buildings More and more, such as Chengdu Raffles City, Shanghai Jinshan Modern Agricultural Park, Algeria Oriental Commercial Plaza Project, Bangladesh Gulshan Community Mosque, Porto Cultural Theater, Côte d’Ivoire Yamoussoukro Cathedral of Our Lady of Peace, etc., the amount of white fair-faced concrete is obvious growth trend. [0003] White concrete is beautiful and has a good decorative effect. However, most of my country is located in the northern tempe...

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Problems solved by technology

[0003] White concrete is beautiful and has a good decorative effect. However, most of my country is located in the northern temperate zone, and the winter is relatively long, and the temperature in most areas is low. There is a common phenomenon of snow and ice in buildings. The harmful substances in the ice and snow not only cause corrosion to white concrete. , lead to concrete cracking, and also lead to carbonation, yellowing and discoloration of white concrete, which loses its aesthetics

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