Composite fiber reinforced concrete pile and preparation method therefor

Abstract

The present invention discloses a composite fiber reinforced concrete pile. The pile consists of the following materials in parts by weight: 2-3 parts of flax fiber,2-4 parts of alum powder, 0.8-2 parts of triethanolamine oleic soap, 3-5 parts of polystyrene fiber, 1-2 parts of ammonium metaborate, 4-6 parts of n- methylpyrrolidone, 500-640 parts of ordinary Portland cement, 300-400 parts of yellow sand, 200-300 parts of crushed stone, 7-14 parts of a polycarboxylate superplasticizer, 0.1-0.2 parts of benzoyl peroxide, 5-6 parts of maleic anhydride, 2-3 parts of polyethylene glycol monomethyl ether, 0.7-2 parts of sp-80, 50-70 parts of waste rubber powder, 0.1-0.2 parts of triethylamine, and 16-20 parts of polyethylene wax. The composite fiber reinforced concrete pile of the invention is high in strength and good in resistance to corrosion caused by sulfate.

Description

technical field [0001] The invention relates to a composite fiber concrete pipe pile, in particular to a composite fiber 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. Carbonizatio...

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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;