Pile body heating device and heating method for red mud fly ash geopolymer pile

Abstract

The invention discloses a pile body heating device and a heating method of a red mud fly ash geological polymer pile. Said heating device comprises a cylindrical reinforcement cage frame with vertical steel bars as the main reinforcement, spiral stirrups are evenly wound on the outer side of the main reinforcement, and insulated wires are evenly wound on the spiral stirrups, An electric thermometer is installed on the main reinforcement, and the insulated wire is connected to the transformer on the ground, and a ring-shaped reinforcing ring tightly connected with the main reinforcement is provided on the outside of the main reinforcement. Heating methods for the pile body, including: (1) placing a heating device; (2) after the filling is completed, connecting each section of insulated wire to a transformer and turning on the power supply, and controlling the working voltage within a safe range through the transformer; (3) heating process Control the temperature, stop heating, and start natural maintenance. The invention provides guarantee for the red mud fly ash geological polymer to be used as a pile body material, realizes on-site heating of the pile body, and enables the pile body to quickly form strength to benefit the quality of the pile.

Description

technical field [0001] The invention relates to a pile body heating device and method for construction piles, in particular to a pile body heating device and heating method for red mud fly ash geopolymer piles (RFP), and belongs to the technical field of waste comprehensive utilization and foundation treatment . Background technique [0002] Red mud is a reddish-brown powder mud-like water-containing strong alkaline solid waste produced in the alumina production process. According to statistics, 0.8-1.5 tons of dry red mud will be produced for every 1 ton of alumina produced. In my country, the comprehensive utilization rate of red mud is very low, only 4%, and the accumulated reserves have reached hundreds of millions of tons. At present, a large amount of red mud mainly relies on large-area storage yards, which takes up a lot of land and causes serious pollution to the environment. It is imperative to minimize the harm of red mud and realize the multi-channel and large-s...

AI Technical Summary

Problems solved by technology

However, due to the limitation of technical process, most of the research work is still in the laboratory stage, and it is rarely used in engineering.

If it is used as a pile material, the problem of the rapid generation of the strength of the red mud fly ash geopolymer must be solved, because the strength of the red mud fly ash geopolymer is gradually formed, and the pile material may be damaged due to the early strength. If it is too low, it will affect the quality of the pile body

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