Interface joint material based on industrial solid waste and preparation method thereof

Abstract

The invention discloses an interface joint material based on industrial solid waste and a preparation method thereof, and relates to the field of interface joint materials for buildings. The concrete comprises the following raw materials in parts by weight: 80-130 parts of Portland slag cement, 80-130 parts of metakaolin, 80-130 parts of industrial solid waste, 25-35 parts of sodium silicate, 8-12 parts of alkali, 30-36 parts of acrylate, 1-3 parts of a trivinyl ether compound, 1-3 parts of inorganic sulfite, 1-3 parts of persulfate, 3-6 parts of a water reducing agent and 60-80 parts of water. The interface joint material based on the industrial solid waste is suitable for concrete interfaces with different components, is good in cohesiveness and high in strength, and has the advantages of being capable of being pumped, rapid in hardening, early in strength, micro in expansion and high in ductility. According to the invention, the industrial solid waste is doped, so that the utilization rate of the industrial solid waste in the joint material for the building is increased, and the joint material has important significance on recycling of the industrial solid waste.

Description

technical field [0001] The invention relates to the field of interface joint materials for construction, in particular to an interface joint material based on industrial solid waste and a preparation method thereof. Background technique [0002] For the concrete structure constructed in the marine environment, the formwork adopts UHPC concrete precast slabs mixed with fibers, and the formwork is not removed after the construction is completed. Therefore, in the construction process, it is necessary to inject engineering interface joint material between the concrete structure and the formwork, so that the concrete structure and the formwork are integrated, and the interface adhesion and corrosion protection performance of the two are increased. [0003] At present, the commonly used building interface joint materials are classified according to their components, which can be divided into two categories: inorganic joint materials and organic joint materials. Inorganic joint m...

AI Technical Summary

Problems solved by technology

The preparation process of cement-based joint materials is relatively simple, and the source of materials is wide, but its late drying shrinkage is large, easy to crack, and cannot achieve the purpose of long-term filling and reinforcement

Compared with the early acrylamide chemical joint materials, acrylate joint materials are safer and more environmentally friendly, and do not have the defects of large dry shrinkage of cement-based joint materials in the later stage, but their strength is low, easy to oxidize and become brittle

[0004] For concrete structures constructed in marine environments, joint materials, whether cement-based or acrylate-based, are injected between the concrete structure and formwork. Joint materials are not suitable. This is because the surface of the formwork is very smooth, and the joint material is not easy to bond it. On the other hand, because the composition of the concrete structure and the formwork is different, the joint material is difficult to simultaneously Bonding of materials of different composition

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