Method for preparing mortar sealing bonding material

Abstract

The invention discloses a method for preparing a mortar sealing bonding material, which solves the problem that the existing mortar sealing bonding material has high production cost and various performances need to be improved. The method comprises the following steps: firstly modifying carbon nanotubes to obtain methoxy-PEG-amino-modified chopped carbon nanotubes, and then taking steel slag, granulated slag, water, a water reducing agent and a retarder to be mixed for wet grinding until the median diameter is less than or equal to 6mu m to obtain slurry A; then adding quartz sand, fluorogypsum, ordinary Portland cement, water, an early strength agent and a thixotropic lubricant to the slurry A, and uniformly mixing to obtain slurry B; and finally, adding the chopped carbon nanotubes to the slurry B, and then adding a styrene-butadiene emulsion, an antifoaming agent and a coupling agent, mixing and stirring to obtain a modified mortar sealing bonding material. The method disclosed by the invention has a simple process and low production cost, and the prepared mortar sealing bonding material has high bonding strength, and has good bonding strength, anti-impact toughness, and good waterproof and anti-seepage performance and anti-cracking performance especially in a high temperature environment.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a preparation method of a mortar sealing adhesive material. Background technique [0002] The prefabricated concrete structure is a concrete structure formed by prefabricated concrete components as the main component, which is assembled, connected and combined with parts cast in place. In today's international construction field, prefabricated concrete structures are different in various countries and regions, and mainland China is still in the development and research stage. In recent years, the modernization of the domestic housing industry has achieved certain results, but there is still a long way to go in the application of housing systems and other fields. [0003] With the rise of the prefabricated construction industry, a series of problems have emerged that restrict the rapid development of the prefabricated construction industry. The exterior wall components of the p...

AI Technical Summary

Problems solved by technology

One is sealant. The problem of sealant is that it cannot withstand heat for a long time, especially in high temperature and humid environment, it is easy to produce bubbles and cracks, which will affect the bonding strength.

The other is cement mortar. The problem of this kind of sealing material is that the bonding strength is low and leakage is easy to occur.

The sealing material has good construction performance, high early strength, and continuous strengthening in the later stage, but the bonding strength is not high

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