High friction uplift-resistant concrete tubular pile and preparation method thereof

Abstract

The present invention discloses a high friction uplift-resistant concrete tubular pile. According to the present invention, with doping of the ethoxylated rubber, the internal pore structure of concrete can be effectively improved and a large number of closed pores are formed, such that the capillary pores can be prevented from formation of the continuous and penetrating network structure system, the anti-carbonation zone can be formed, and the further enhancement effect is provided for the inhibition of the intrusion of carbon dioxide; and the contents of the harmful pores and the defects in the concrete structure can be effectively reduced, the alkality of the hydration product is reduced, and the conversion of the low strength hydration product to the high strength hydration product is promoted.

Description

technical field [0001] The invention relates to a high-friction uplift-resistant concrete pipe pile, in particular to a high-friction uplift-resistant concrete pipe pile and a preparation method thereof. Background technique [0002] Concrete structure is one of the most widely used structures. About 70% of the house construction and 50% of bridge structures in China use concrete structures. With the increase of the service time of these engineering structures, the durability damage of concrete materials and structures is becoming more and more serious. The more attention is paid, many engineering structures often cause functional degradation or even structural damage due to durability, which brings unnecessary losses to society. Concrete carbonation is one of the important durability indicators of concrete. Due to carbon dioxide in the atmosphere and concrete The reaction of alkaline substances in the concrete makes the concrete appear neutral, which is called the carboniza...

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Problems solved by technology

[0002] Concrete structure is one of the most widely used structures. About 70% of the housing construction and 50% of bridge structures in China use concrete structures. With the increase of the service time of these engineering structures, the durability damage of concrete materials and structures is becoming more and more serious. The more attention is paid, many engineering structures often cause functional degradation or even structural damage due to durability, which brings unnecessary losses to society. Concrete carbonation is one of the important durability indicators of concrete. Due to carbon dioxide in the atmosphere and concrete The reaction of the alkaline substances in the concrete makes the concrete appear neutral, which is called the carbonization of the concrete. Carbonization makes the steel bars in the concrete structure lose the protection of the passivation film, which easily makes the steel bars rust, and then destroys the structure. With the continuous advancement of the industrialization process, the emission of carbon dioxide has increased greatly, which has a negative impact on the durability of concrete structures while producing the greenhouse effect;