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Pre-cured alkali-activated inorganic coating material

A technology of coating materials and pre-curing, which is applied in the field of building materials and can solve problems such as uneven coating, waste of working time, and agglomeration

Inactive Publication Date: 2015-05-27
吕孟龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 1. The mixing process before use requires very thorough stirring, otherwise some metakaolin and hardening accelerators that are not fully mixed will agglomerate and form coarser particles, making the coating uneven
[0009] 2. Generally, the depolymerization process of metakaolin takes several hours, so it needs to be matured before use. This waiting process wastes working time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] 45 grams of sodium silicate solution (concentration 30%, modulus 2.5), 3.5 grams of sodium hydroxide, 55 grams of metakaolin, 20 grams of mica powder, 3 grams of chopped glass fiber, 10 grams of silica sand, 2 grams of methyl silicic acid Potassium solution (content 20%), 3 grams of redispersible latex powder.

[0085] The pre-cured components are: sodium silicate solution, potassium methyl silicate solution, 1 gram of sodium hydroxide, metakaolin.

[0086] Secondary activators are: 2.5 grams of sodium hydroxide.

[0087] Excipients include: mica powder, chopped glass fiber, silica sand, redispersible latex powder.

[0088] The above ratio can be divided into two components:

[0089] Component A: pre-cured component.

[0090] Component B: secondary activator, auxiliary materials.

[0091] Manufacturing process:

[0092] (1) Prepare the pre-cured component: mix the ingredients in the pre-cured component, stir evenly, perform pre-cured, and then pack.

[0093] (2) P...

Embodiment 2

[0107] 42 grams of potassium silicate solution (concentration 35%, modulus 2.0), 4.2 grams of sodium carbonate, 30 grams of metakaolin, 2 grams of slag, 5 grams of fly ash, 18 grams of mica powder, 3 grams of calcium carbonate, 5 grams of glass Fiber, 1 gram of silicone water repellent, 1 gram of redispersible latex powder, 2 grams of sodium hydroxide.

[0108] The pre-cured components include: potassium silicate solution, metakaolin, and fly ash.

[0109] Secondary activators are: sodium carbonate, sodium hydroxide.

[0110] The auxiliary materials mixed with the pre-cured components include: mica powder, silicone water repellent.

[0111] The auxiliary materials mixed with the secondary activator include: calcium carbonate, glass fiber, redispersible latex powder, slag.

[0112] The above ratio can be divided into two components:

[0113] Component A: pre-cured components, auxiliary materials mixed with pre-cured components.

[0114] Component B: Secondary activator, aux...

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PUM

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Abstract

The invention discloses a pre-cured alkali-activated inorganic coating material, which is applied to the repair and protection of outside surfaces of underground spaces and buildings, and particularly applicable to the surface repair and protection of exterior walls, basements, water conservancy projects, tunnels, bridges, highways, docks and pools. According to the invention, through a pre-curing process, the alkali-activated coating material is more convenient to use, and pre-cured more fully; and the pre-curing process refers to a step-by-step curing process, and in the first curing, an alkali-activator is not completely put, so that the pre-curing is performed at low alkalinity, therefore, the pre-curing can be gradually performed in two steps or multiple steps.

Description

technical field [0001] The invention relates to a pre-cured alkali-activated inorganic coating material, which is used for the repair and protection of underground spaces and building exterior surfaces, and is especially suitable for surface restoration of exterior walls, basements, water conservancy projects, tunnels, bridges, highways, docks, and pools and protection, belonging to the field of building materials. Background technique [0002] Geopolymer cement is a new type of alkali-activated cementitious material developed by J Davidovits of France in the late 1970s. Formed under the action of the agent. The silicon-aluminum oxide compound in the minerals of geopolymeric cement raw materials has undergone a process from depolymerization to repolymerization, forming a structure similar to some natural minerals in the earth's crust, and is a new type of cementitious material with excellent durability. Many minerals or mineral mixtures will have pozzolanic activity or pot...

Claims

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Application Information

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IPC IPC(8): C04B28/00
Inventor 吕孟龙
Owner 吕孟龙
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