Natural anhydrite self-leveling anti-crack mortar

An anti-cracking mortar and anhydrite technology, applied in the field of construction mortar, can solve the problems of less research on anhydrite and immature technology, etc., and achieve the effects of improving workability and compactness, ensuring early strength and reducing internal stress.

Inactive Publication Date: 2016-07-06
张学健
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Standard, but there is less research on anhydrite, especially anhydrite self-leveling mortar, and the technology is not yet mature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: A natural anhydrite self-leveling anti-cracking mortar, which is prepared by stirring and mixing the following components according to mass percentage: natural anhydrite: 45 parts, composite activator: 7 parts, fly ash: 8 parts, quartz Sand: 34 parts, water reducing agent: 0.5 part, fiber: 0.5 part, defoamer: 0.5 part, dispersible latex powder: 3 parts, water retaining agent: 0.5 part, shrinkage reducing agent: 1.0 part.

Embodiment 2

[0024] Example 2: A natural anhydrite self-leveling anti-cracking mortar, which is prepared by stirring and mixing the following components according to mass percentage: 45 parts of first-grade gypsum with a purity greater than 82.5%, 8 parts of calcined alunite, anhydrous sulfuric acid Sodium: 4 parts, fly ash: 8 parts, quartz sand: 34 parts, water reducer: 0.5 parts, fiber: 0.5 parts, defoamer: 0.5 parts, dispersible latex powder: 3 parts, water retaining agent: 0.5 parts , Shrinkage reducer: 1.0 parts.

Embodiment 3

[0025] Example 3: A natural anhydrite self-leveling anti-cracking mortar, which is prepared by stirring and mixing the following components according to mass percentage: first-grade gypsum with a purity greater than 82.5%: 50 parts, calcined alunite: 6 parts, anhydrous Sodium sulfate: 3 parts, fly ash: 5 parts, quartz sand: 31 parts, water reducer: 0.5 parts, fiber: 0.5 parts, defoamer: 0.5 parts, dispersible latex powder: 2 parts, water retaining agent: 0.5 parts Parts, shrinkage reducer: 1.0 parts.

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Abstract

The invention discloses a natural anhydrite self-leveling anti-cracking mortar, which is prepared by mixing the following components: natural anhydrite, composite activator, fly ash, quartz sand, water reducer, fiber, defoamer, Dispersed latex powder, water retaining agent, shrinkage reducing agent. The natural gypsum self-leveling anti-cracking mortar of the present invention uses natural gypsum as a main material, and an additional composite activator effectively stimulates the hydration rate of the anhydrite. It ensures the setting and hardening of the mortar and its early strength. Adding water-retaining agent, defoamer, dispersible latex powder, etc. greatly improves the construction and compactness of the mortar. Fiber and shrinkage reducing agent are also added in the formula to reduce the internal stress generated by the hardening of the mortar and prevent the mortar from cracking and deforming.

Description

technical field [0001] The invention relates to a building mortar, in particular to a natural anhydrite self-leveling and anti-cracking mortar. Background technique [0002] Ground self-leveling material is a material used for leveling the ground. Because of its excellent flow properties and self-leveling properties, the self-leveling slurry can be poured into the ground construction area, under its own gravity or with a little diversion. Extended on the ground base, it will not bleed, segregate and settle. Therefore, only need to dump or pump the slurry to the construction area during construction, the construction is extremely simple and fast, compared with the traditional troweling operation, it saves a lot of man-hours and improves the smoothness of the leveling operation. [0003] The ground self-leveling materials that have been developed are divided into two categories: organic materials and inorganic materials. The organic materials are mainly based on epoxy resin, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/16C04B111/62
CPCC04B28/16C04B2111/62
Inventor 不公告发明人
Owner 张学健
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