Bauxite and brucite concrete tubular pipe and preparation method therefor

Abstract

The invention discloses a bauxite and brucite concrete tubular pipe which is prepared from the raw materials in parts by weight: 2-3 parts of dinonyl barium naphthalenesulfonate, 13-20 parts of bauxite, 1-2 parts of calcium phosphate, 0.1-0.2 part of sodium thiosulfate, 3-7 parts of brucite amianthine, 7-10 parts of n-methyl pyrrolidinone, 500-640 parts of common silicate cement, 300-400 parts of yellow sand, 200-300 parts of gravels, 7-15 parts of a polycarboxylic acid based superplasticizer, 16-20 parts of polyethylene wax, 0.1-0.2 part of dibenzoyl peroxide, 5-6 parts of maleic anhydride, 2-3 parts of polyethylene glycol monomethyl ether, 4-7 parts of ethyecellulose, 0.7-2 parts of sp-80 and 50-70 parts of waste rubber powder. By doping ethoxylated rubber fiber, the inner pore structure of the concrete can be effectively improved to form a lot of close pores so as to prevent capillary pores from forming a continuous cut-through netty structural system, thereby forming an anti-carbonizing zone which plays a reinforcing effect in inhibiting invasion of carbon dioxide.

Description

technical field [0001] The invention relates to an aluminum-magnesite concrete pipe pile, in particular to an aluminum-magnesite 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. Carb...

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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;