Concrete pipe pile and preparation method thereof

Abstract

The invention discloses a concrete pipe pile which is prepared from the following raw materials in parts by weight: 500-640 parts of common silicate cement, 300-400 parts of yellow sand, 200-300 parts of gravels, 14-20 parts of aluminum phosphate, 7-15 parts of a poly carboxylic acid water reducing agent, 16-20 parts of polyethylene wax, 0.1-0.2 part of dibenzoyl peroxide, 5-6 parts of maleic anhydride, 2-3 parts of methoxy polyethylene glycol, 4-7 parts of ethyecellulose, 0.7-2 parts of sp-80, 50-70 parts of waste rubber powder and 0.1-0.2 part of triethylamine. According to the concrete pipe pile disclosed by the invention, by doping the ethoxylated rubber fiber, the inner pore structure of the concrete can be effectively improved to form a lot of closed pores to prevent pores from forming a continuous penetrating netty structure system so as to play a role of further enhancing inhibition of invasion of carbon dioxide. In addition, the content of harmful pores and defects in the concrete structure can be further reduced, the alkalinity of hydration products is reduced, and the low-strength hydration products are promoted to be converted into high-strength hydration products.

Description

technical field [0001] The invention relates to a concrete pipe pile, in particular to a 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 carbonization of concrete. Carbonization makes the steel bars in the co...

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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;