Concrete tube pile with fine milled slag micropowder and production me thod thereof

Abstract

The invention relates to a concrete pipe pile mixed into size reduction slag miropowder, used in civil construction industry, and its production method. It includes cement, 1 (weight portion) yellow sand (1.5 to 2.9), broken stone (3.2 to 5.0), water (0.3 to 0.6), water reducing agent (0.025 to 0.045), size reduction slag miropowder (0.2 to 1). Its production method is premixing for thirty seconds, stirring with the water and the water reducing agent uniformly and poured continuously at one end of pipe pile mould, centrifugal forming, conserved. The advantages are improving its concrete intension, impermeability, crack resistance, and resistance to bending saving concrete and water and low cost.

Description

technical field

[0001] The invention relates to a concrete pipe pile mixed with ground fine slag powder used in civil construction industry, and also relates to a production method of the concrete pipe pile mixed with ground fine slag powder. Background technique

[0002] At present, in some major projects, some construction units choose steel pipe piles or steel pipe concrete piles as the bearing foundation piles of buildings and large equipment foundations. However, due to the high cost of steel pipe piles or steel pipe concrete piles, the cost of construction will be increased after use. Therefore, most construction units now use PHC pipe piles (ie prestressed high-strength concrete pipe piles) instead of steel pipe piles or steel pipe piles. Concrete piles are used as load-bearing foundation piles to reduce construction costs. However, due to the defects of PHC piles’ insufficient impact resistance and fatigue strength, as a load-bearing foundation pile, it cannot meet ...