A kind of all-solid waste micro-expansive concrete and preparation method thereof

By using modified solid waste-based gelling materials, including solid waste-based clinker, modified polyvinyl alcohol and modified anion exchange resin, the problem of fast hydration of expansion agents in the prior art is solved. Continuous swelling and strength improvement of concrete have been achieved.

CN119038912BActive Publication Date: 2025-02-11INNER MONGOLIA UNIV OF TECH
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Patent Information

Application Number
CN202411530991.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-30
Publication Date
2025-02-11
Estimated Expiration
2044-10-30

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Abstract

The present invention relates to the technical field of concrete materials, specifically a full solid waste micro-expansion concrete and a preparation method thereof, comprising the following components in parts by weight: 920-1060 parts of coarse aggregate, 460-582 parts of fine aggregate, 11-19 parts of expansion agent, 389-512 parts of modified solid waste-based cementitious materials, and 231-268 parts of water; wherein the coarse aggregate is coal gangue, the fine aggregate is waste ceramics, the modified solid waste-based cementitious materials include solid waste-based clinker, modified polyvinyl alcohol and modified anion exchange resin, and the solid waste-based clinker is prepared by coal gangue, carbide slag and desulfurized gypsum; the expansion agent is formed by calcining carbide slag. The concrete prepared in the present invention can not only ensure the initial strength of the concrete, but also ensure that the concrete is continuously micro-expanded in the later stage, shrinkage compensation is performed, and the overall strength of the concrete is improved.
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Citation Information

Patent Citations

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  • Two-stage regulated all-solid-waste micro-expansive concrete and preparation method thereof

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