Anti-carbonization concrete tubular pile and preparation method therefor

Abstract

The invention discloses an anti-carbonization concrete tubular pile and a preparation method therefor. The anti-carbonization concrete tubular pile consists of the following raw materials in parts by weight: 10-16 parts of light calcium carbonate, 1-2 parts of wool grease, 0.7-2 parts of sodium lauroyl sarcosine, 20-30 parts of potassium feldspar powder, 3-4 parts of n-methyl pyrrolidone, 500-640 parts of ordinary silicate cement, 300-400 parts of yellow ground, 200-300 parts of gravels, 7-14 parts of a polycarboxylate water reducer, 0.1-0.2 part of dibenzoyl peroxide, 5-6 parts of maleic anhydride, 2-3 parts of polyethylene glycol monoethylether, 0.7-2 parts of sp-80, 50-70 parts of waste rubber powder, 0.1-0.2 part of triethylamine, 16-20 parts of polyethylene wax and 2-4 parts of polyvinyl butyral. The anti-carbonization concrete tubular pile can reduce quantity of harmful holes and defects in a concrete structure, reduces alkalinity of hydration products and promotes low-strength hydration products to transform into high-strength hydration products.

Description

technical field [0001] The invention relates to an anti-carbonation concrete pipe pile, in particular to an anti-carbonation 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. Carboniz...

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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;