Anti-corrosion concrete

Abstract

The invention discloses anti-corrosion concrete which comprises a binding material, sand, stones, water and an additive, wherein the binding material comprises cement with a mark number being 42.5, and an admixture, the admixture comprises fly ash and mineral powder, the additive is a polycarboxylate superplasticizer, and the concrete also comprises glass flakes and wear-resistant white fused alumina filler particles; the weight of the glass flakes accounts for 10-20% of the total weight of the binding material; and the weight of the wear-resistant white fused alumina filler particles accounts for 10-20% of the total weight of the binding material. The anti-corrosion concrete disclosed by the invention is low in cost, good in anti-corrosion effect and good in wear resistance, can effectively prevent from being damaged by external forces and internal stresses and resist the corrosion of acid liquor or the sweep of flue gas, and can effectively prolong the service life of a matrix; meanwhile, the concrete is low in water-binder ratio, good in workability and excellent in mechanical properties, the concrete cracking is avoided, the high durability of the concrete is ensured, the creep of concrete is effectively reduced, the loss of prestress is reduced, and the structure safety of concrete is ensured.

Description

technical field [0001] The invention relates to a building concrete material, in particular to an anti-corrosion low-creep high-performance concrete material. Background technique [0002] Concrete takes durability as the main index of design, and according to the requirements of different uses, the key performances such as durability, workability, applicability, strength, volume stability and economy are guaranteed. Therefore, to improve the performance of concrete, the characteristics of the configuration are the use of low water-binder ratio, the selection of high-quality raw materials, and the addition of sufficient quantities of mineral fine admixtures and high-efficiency admixtures. High-performance concrete can adapt to the development of modern engineering in the direction of large spans, heavy loads, towering towers and harsh environmental conditions, and meets the requirements of modern construction technology using industrial production (factory ready-mixed concre...

AI Technical Summary

Problems solved by technology

[0006] 3. For prestressed concrete structures, the creep of concrete greatly increases the loss of prestress, which is extremely unfavorable. Therefore, prestressed structures generally require higher concrete strength grades to reduce creep and loss of prestress

[0007] 4. Does not take into account the special use environment, such as factory buildings in factory areas, marine engineering projects such as cross-sea bridges, submarine tunnels, saline soil media projects, chemical industry production and discharge infrastructure safety, etc.

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