Method for manufacturing prestressed centrifugal anti-corrosion concrete hollow square piles through pre-tensioning method
A technology of corrosion-resistant concrete and hollow square piles, which is applied in the direction of manufacturing tools, reinforced molding, ceramic molding machines, etc., can solve the problems of unsuitable use, insufficient research on corrosion resistance and durability of precast concrete and related technology development, and low durability and other issues to achieve the effect of improving safety, improving durability and corrosion resistance, and improving corrosion resistance
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[0017] See figure 1 As shown, the specific production process of the pretensioned prestressed centrifugal corrosion-resistant concrete hollow square pile of the present embodiment includes:
[0018] 1. Design concrete mix ratio. Table 1 shows the mixing ratios of the two concretes in this example.
[0019] Table 1 Concrete mix ratio
[0020]
[0021] The concrete with the above two proportions has high corrosion resistance. In the concrete composition, in addition to the traditional sand and gravel aggregates, cement cementitious materials, water reducer admixtures and water, mineral admixtures and corrosion-resistant materials with superior corrosion resistance are also added. Mineral admixtures include fly ash, mineral powder and silica fume. Corrosion-resistant materials include barium hydroxide, sodium citrate, boric acid, sodium hexametaphosphate, sodium benzoate, sodium dodecylbenzenesulfonate, sodium dodecylsulfosulfate, silica sand, etc. Depending on the corros...
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