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Recycled concrete member with additive and method for preparing same

A technology of recycled concrete and admixtures, applied in infrastructure engineering, sustainable waste treatment, solid waste management, etc., can solve the problems of low strength of ordinary recycled concrete components, achieve the effect of improving contact interface, enhancing strength and improving quality

Active Publication Date: 2010-07-28
深圳市和美建筑节能科技发展有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is: the recycled concrete member and the preparation method of the present invention overcome the technical problem that the strength of the ordinary recycled concrete member is not high in the prior art

Method used

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  • Recycled concrete member with additive and method for preparing same
  • Recycled concrete member with additive and method for preparing same
  • Recycled concrete member with additive and method for preparing same

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Embodiment Construction

[0018] The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

[0019] Such as figure 1 As shown, the specific implementation mode of the present invention is: build a kind of recycled concrete member, comprise cement, water, the admixture that can release carbon dioxide and the concrete aggregate that forms after the crushing of waste concrete, cement, water, can release carbon dioxide The admixture and the concrete aggregate formed by crushing waste concrete are mixed in proportion to form recycled concrete 2, and also includes a columnar matrix 1 for containing the recycled concrete, and the recycled concrete 2 is poured into the columnar matrix 1 Formed to form recycled concrete elements. In the present invention, because contain a large amount of calcium hydroxide (chemical formula is Ca(OH) in the recycled concrete 2 2 ), the regenerated concrete 2 is placed under normal mixing and normal pressure afte...

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Abstract

The invention relates to a recycled concrete member, which comprises cement, water, an additive capable of releasing carbon dioxide and aggregate which is formed by using crushed waste concrete, wherein the cement, the water, the additive capable of releasing the carbon dioxide and the aggregate formed by using the crushed waste concrete are stirred and mixed in a ratio to form the recycled concrete. The recycled concrete member also comprises a columnar matrix which accommodates the recycled concrete and the recycled concrete is poured into and molded in the columnar matrix and then forms the recycled concrete member. The recycled concrete of the recycled member of the invention is prepared by stirring and mixing the cement, the water, the additive capable of releasing the carbon dioxide and the aggregate formed by using the crushed waste concrete in a ratio, calcium hydroxide in the recycled concrete and the carbon dioxide react to give calcium carbonate and the calcium carbonate mixed in the recycled concrete can improve contact interfaces of the waste aggregate and the cement, so the intensity of the recycled concrete is strengthened, the pores of the recycled concrete are reduced and the quality of the recycled concrete member is improved.

Description

technical field [0001] The invention relates to a concrete component and a preparation method, in particular to a recycled concrete component made from waste concrete and a preparation method. Background technique [0002] With the development of society, there are more and more buildings and construction projects. Concrete components are widely used in columns and foundation piles of tower structures, industrial plants and civil buildings. With the transformation of the city, a large amount of construction waste formed by abandoned buildings in the city is caused. The disposal of these construction waste not only requires a large area of ​​storage yard, but also costs a lot of manpower and material resources. With the development of construction science, effective utilization of construction waste has become a new topic. [0003] In the prior art, the construction waste formed from abandoned building concrete is crushed to form recycled concrete for recycling, which not on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/34E02D5/30
CPCC04B28/02Y02W30/91C04B14/041C04B14/28C04B18/167C04B20/023C04B24/125
Inventor 查晓雄刘轶翔
Owner 深圳市和美建筑节能科技发展有限公司
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