GRC (glass fiber reinforced composite) light heat-insulation disassembly-free formwork mixed with iron tailings and method for manufacturing GRC light heat-insulation disassembly-free formwork

Abstract

The invention discloses a GRC (glass fiber reinforced composite) light heat-insulation disassembly-free formwork mixed with iron tailings and a method for manufacturing the GRC light heat-insulation disassembly-free formwork. The method includes adding the iron tailings, glass fibers, activators, expanding materials and gel materials into a stirrer by the aid of water in advance according to a formula when the GRC light heat-insulation disassembly-free formwork is about to be manufactured, and stirring the iron tailings, the glass fibers, the activators, the expanding materials and the gel materials for a certain period of time; mixing the balance water and polycarboxylic acid type water reducing agents with one another, then filling the stirrer with the balance water and the polycarboxylic acid type water reducing agents, and stirring the balance water and the polycarboxylic acid type water reducing agents to obtain mixtures; feeding the mixtures into forms, and then vibrating and forming the mixtures; maintaining the mixtures for 10-16 hours and then releasing the mixtures from the forms to obtain the formwork; maintaining the released formwork according to maintaining conditions until the formwork can be stacked and transported so as to complete product manufacturing procedures. The GRC light heat-insulation disassembly-free formwork and the method have the advantages that the GRC light heat-insulation disassembly-free formwork manufactured by the aid of the method is light, fireproof and flame-retardant, is high in strength, free of disassembly and low in cost, can be firmly adhered with castables and can be cut, excellent heat-insulation effects can be realized, and the size of the GRC light heat-insulation disassembly-free formwork can be adjusted; the problem of cold and heat bridges of buildings can be effectively solved, construction procedures can be simplified, the construction intensity can be relieved, the construction progress can be accelerated, the GRC light heat-insulation disassembly-free formwork is particularly applicable to high-rise buildings, relevant environmental problems due to stacking of existing iron tailings can be effectively solved, and the like.

Description

technical field [0001] The invention relates to the field of dismantling-free formwork, in particular to a GRC type light-weight thermal insulation non-dismantling formwork mixed with iron tailings and a preparation method thereof. Background technique [0002] As an important tool in the construction of cast-in-place concrete structures, traditional formwork materials mainly include wood, bamboo and steel, etc., and the turnover time is usually only three times, and the manufacture of formwork requires a large amount of wood and steel, which leads to excessive use of natural resources and environmental problems; In addition, when the formwork is produced, installed, and removed, the amount of work is relatively large, and the engineering cost accounts for 30% to 35% of the cost of the cast-in-place concrete structure, and the labor consumption accounts for 40% to 50%. In addition, in order to facilitate formwork removal, waste engine oil is often coated on the inner surface...

AI Technical Summary

Problems solved by technology

[0005] In addition, according to incomplete statistics, my country's current iron tailings reserves are as high as more than one billion tons, accounting for nearly 1 / 3 of the total tailings stockpile. The annual discharge of iron tailings is nearly 300 million tons, but the comprehensive utilization rate is only About 7%, far lower than the level of 60% abroad

A large number of stockpiled iron tailings not only cause waste of resources, but also lead to serious environmental and ecological pollution