Sulfate-resistant and corrosion-resistant impervious non-autoclaved C80P12 concrete pipe pile

Abstract

The invention relates to a sulfate-resistant and corrosion-resistant impervious non-autoclaved C80P12 concrete pipe pile. The concrete pipe pile is characterized in that per cubic meter of concrete comprises the following components in percentage by mass: 13%-20% of cement, 2-4% of finely ground beads, 0.5%-1.5% of mineral powder, 20%-28% of yellow ground, 43%-54% of macadam, 0.4%-0.8% of a complex water reducer, 0.4%-0.8% of a preservative, 0.4%-0.8% of a corrosion inhibitor and 3%-8% of water. According to the technical scheme, heating energy is saved; exhaust emission caused by long-term use of a boiler is reduced; the sulfate-resistant and corrosion-resistant impervious non-autoclaved C80P12 concrete pipe pile has the advantages of corrosion resistance, impervious performance, crack resistance and the like; and the concrete pipe pile prepared from these components can be widely applied to such construction environments with relatively high sea salt corrosivity as seaside wharfs, dams and coastal mud flat.

Description

technical field [0001] The invention relates to concrete, in particular to a sulfate-resistant, corrosion-resistant, seepage-resistant, autoclaved-free C80P12 concrete pipe pile, which belongs to the technical field of concrete production and processing. Background technique [0002] Concrete refers to a mixture made of cementitious materials, granular aggregates, water, chemical admixtures and mineral admixtures that need to be added in an appropriate proportion, or a composite material with a stacked structure after hardening. When mixed with admixtures and mineral admixtures, with appropriate proportions. Concrete is a living building material. With the continuous development of concrete composition materials, people's understanding of material composite technology has been continuously improved. The performance requirements of concrete are not limited to compressive strength, but on the basis of strength, more attention is paid to the balance and coordination of compre...

AI Technical Summary

Problems solved by technology

Now the concrete strength of pipe pile is C80 corrosion resistance and anti-seepage technology is PHC high-strength prestressed concrete pipe pile production with sulfate-resistant Portland cement or ordinary Portland cement mixed with commonly used finely ground quartz sand to replace the amount of cement to meet the design requirements of the mix ratio. The concrete is cured by atmospheric pressure steam and then autoclaved to form tober mullite crystals to achieve the purpose of C80 to improve the anti-corrosion and impermeability of concrete. However, the technical requirements of this process are relatively high. The anti-split performance of pile concrete will be affected, which will cause cracking of the pipe pile body, and the driving resistance and durability of the pipe pile body will decrease under special construction conditions.

At present, asphalt coating and wear-resistant anti-corrosion coating are used for pipe pile anti-corrosion. During the construction process, friction causes the coating to fall off, resulting in a decline in the corrosion resistance and impermeability of the pipe pile. The pipe pile concrete industry is paying attention to this problem, and it is also Experimental research on anti-corrosion and anti-seepage technology of C80 without autoclave

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