Low-cost fly ash concrete pile, and preparation method therefor

Abstract

The present invention discloses a low-cost fly ash concrete pile. The pile consists of the following raw materials in parts by weight: 5-6 parts of maleic anhydride,40-50 parts of fly ash, 1.5-3 parts of Butyl-p-hydroxybenzoate, 0.1-0.2 parts of diazolidinyl urea, 0.1-0.3 parts of two thioglycolic acid dimethyl diisooctyl tin, 0.2-0.4 parts of polysorbate 80, 4-7 parts of kynar, 500-640 parts of ordinary Portland cement, 300-400 parts of yellow sand, 200-300 parts of crushed stone, 7-15 parts of polycarboxylate superplasticizer, 16-20 parts of polyethylene wax, 0.1-0.2 parts of dibenzoyl peroxide, 2-3 parts of polyethylene glycol monomethyl ether, 0.7-2 parts of sp-80, and 50-70 parts of waste rubber powder. The pile of the invention, with fly ash being used as a filler, is low in cost, good in surface resistance, high in strength, strong in impermeability, and superior in overall performance.

Description

technical field [0001] The invention relates to a low-cost fly ash concrete pipe pile, in particular to a low-cost fly ash 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. Carbonizat...

AI Technical Summary

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;