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Preparation method of dampproof building mortar

A technique for mortar and preparation steps, which is applied in the field of moisture-proof construction mortar preparation, can solve the problems of not meeting the performance requirements of block masonry mortar and poor moisture-proof performance, and achieve the goals of preventing infiltration, improving moisture-proof performance, and improving hydrophobicity Effect

Inactive Publication Date: 2019-03-01
吴伟华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is to provide a method for preparing moisture-proof building mortar in view of the defects that the current common building mortar has poor moisture-proof performance and cannot meet the requirements of block masonry for mortar performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0022] The collected river sand is soaked in an ethanol solution with a mass fraction of 70% for 2 days. After soaking, the filter residue is obtained by filtering and separating, which is the pretreated river sand. Mix 10:2:20 to obtain the premix; put the premix into a microwave oscillator, and react with microwave oscillation at 40°C with a power of 200W for 1 hour to obtain an oscillating reactant, and add the oscillating reactant to the reaction kettle , then add a citric acid solution with a concentration of 10% of the mass of the oscillating reactant to 0.5mol / L in the reaction kettle, stir and react at 120°C for 3h, after the reaction is completed, take out the reaction product, which is the modified premix, and set aside; Collect discarded duck feathers from poultry processing plants, mix the discarded duck feathers with hydrochloric acid with a concentration of 0.8mol / L at a mass ratio of 1:20, soak at 60°C for 3 hours, filter and separate the filter residue, and mix ...

example 2

[0024] The collected river sand is soaked in an ethanol solution with a mass fraction of 70% for 3 days. After soaking, the filter residue is obtained by filtering and separating, which is the pretreated river sand. Mix 10:2:20 to obtain the premix; put the premix into a microwave oscillator, and react with microwave oscillation at 250W power for 2 hours at 45°C to obtain the oscillating reactant, and add the oscillating reactant to the reaction kettle , then add a citric acid solution with a concentration of 10% of the mass of the oscillating reactant at 0.5mol / L to the reactor, and stir and react at 125°C for 4 hours. After the reaction is over, take out the reaction product, which is the modified premix, and set aside; Collect discarded duck feathers from poultry processing plants, mix the discarded duck feathers with hydrochloric acid with a concentration of 0.8mol / L at a mass ratio of 1:20, soak at 65°C for 3 hours, filter and separate the filter residue, and mix the resid...

example 3

[0026]The collected river sand is soaked in an ethanol solution with a mass fraction of 70% for 3 days. After soaking, the filter residue is obtained by filtering and separating, which is the pretreated river sand. Mix 10:2:20 to obtain the premix; put the premix into a microwave oscillator, and react with microwave oscillation at 50°C with a power of 300W for 2 hours to obtain the oscillating reactant, and add the oscillating reactant to the reaction kettle , then add a citric acid solution with a concentration of 10% of the mass of the oscillating reactant to 0.5mol / L in the reaction kettle, stir and react at 130°C for 5h, after the reaction is completed, take out the reaction product, which is the modified premix, and set aside; Collect discarded duck feathers from poultry processing plants, mix the discarded duck feathers with hydrochloric acid with a concentration of 0.8mol / L at a mass ratio of 1:20, soak at 70°C for 4 hours, filter and separate the filter residue, and mix...

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Abstract

The invention relates to a preparation method of dampproof building mortar, and belongs to the technical field of preparation of building materials. According to the preparation method, river sand isused as a raw material; firstly, an ethanol solution is used for soaking the river sand; next, the soaked river sand, organic silane and water are mixed to obtain a pre-mixed material; then, the pre-mixed material and organic acid are mixed at high temperature for reaction so as to obtain a modified pre-mixed material for use; then, waste duck feather is used as a raw material, and through acid soaking and sodium sulfite solution soaking treatment, disulfide bonds in duck feather protein are partially opened, so that the dissolution performance of the duck feather protein is improved; next, analkali solution is used for dissolving the duck feather protein to obtain reaction filter liquid rich in the duck feather protein; and finally, the modified pre-mixed material, portland cement, the reaction filter liquid and water are mixed, and after stirring, the dampproof building mortar is obtained. The dampproof building mortar prepared by the invention has the advantages that the anti-seepage dampproof performance is excellent, and wide application prospects are realized.

Description

technical field [0001] The invention relates to a method for preparing moisture-proof building mortar, which belongs to the technical field of building material preparation. Background technique [0002] Ordinary mortar has poor impermeability and moisture resistance, which cannot meet the requirements of block masonry for mortar performance. According to research at home and abroad, the main solution at present is to modify it by adding components or additives. , the main types of anti-seepage and moisture-proof mortars obtained from this are: (1) polymer mortars, polymers have been widely used as an additional component in cement-based cementitious materials, including polymer latex, redispersible The advantage is that the addition of polymers can improve or enhance the strength, deformation performance, cohesiveness, water resistance and durability of cement mortar and concrete. But in the traditional polymer mortar preparation method. The polymer content generally acco...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B111/27
CPCC04B28/04C04B2111/00293C04B2111/00508C04B2111/27C04B14/06C04B24/026C04B24/42C04B24/06C04B18/18C04B22/122C04B22/14C04B22/062
Inventor 吴伟华丁春美
Owner 吴伟华
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