A grc-type light-weight thermal insulation-free template incorporating iron tailings and preparation method thereof

Abstract

The invention discloses a GRC type light-weight insulation-free formwork mixed with iron tailings and a preparation method thereof. During preparation, iron tailings, glass fibers, activators, expansion materials, cementitious materials and preformed Add water into the agitator and stir for a certain period of time, then mix the remaining water and polycarboxylate water reducer and pour it into the agitator to stir to obtain a mixture. After demolding, depending on the curing conditions, it can be cured until it can be stacked and transported, that is, the product preparation process is completed. The formwork prepared by the present invention has the characteristics of light weight, fire and flame retardancy, high strength, good heat preservation effect, firm bonding with castables, and The advantages of cutting, adjustable size, no need to disassemble, and low cost can effectively reduce the problem of cold and heat bridges in buildings, simplify construction procedures, reduce construction strength, and speed up construction progress, especially for high-rise buildings. Related environmental problems caused by the accumulation of iron tailings.

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...