A kind of preparation method of anti-seepage concrete

A technology of concrete and preparation steps, which is applied in the field of anti-seepage concrete preparation, which can solve the problems of short service life, high cost, and increased volume, and achieve the effects of improving anti-seepage performance, low cost, and prolonging the service life

Active Publication Date: 2017-01-18
广东盈坚实业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention: Aiming at the disadvantages of poor waterproofness of conventional concrete and poor anti-seepage effect of adding waterproofing agent, resulting in water seepage and shedding of the surface layer of the building made of concrete, short service life, difficult repair construction, and high cost, a kind of anti-corrosion The preparation method of water-permeable concrete, the concrete prepared by this method has good water-resistance performance, and the hydrophilic group of the resin in the concrete combines with water to generate expansion, and the volume increases, which can fill the pores inside the concrete, form a waterproof layer, and prevent water leakage. make the structure more stable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019] First, 65 parts of dimethyl diallyl ammonium chloride, 14 parts of ethylene-butylene-styrene block copolymer, 9 parts of organic bentonite and 6 parts of zinc oxide were placed in the internal mixer according to the mass fraction ratio. After mixing, stir with a mixer for 18 minutes, and control the temperature at 120°C; then add 1 part of carbon black, 2 parts of clay, and 3 parts of vaseline to the above mixture respectively according to the mass fraction ratio. Stir the mixer for 20 minutes; extrude the above-mentioned high-speed mixed mixture in a twin-screw extruder to make pellets, and then put the pellets into a fully automatic integrated extruder for extrusion. The vacuum is 0.3MPa, and the cooling water temperature is 18°C Under the condition of vacuum cooling and shaping, the water-swellable resin is obtained; then the above-mentioned water-swellable resin is placed in a high-speed pulverizer and pulverized into resin particles with a particle size of 80 mesh; ...

example 2

[0021] First, 60 parts of dimethyl diallyl ammonium chloride, 16 parts of ethylene-butylene-styrene block copolymer, 7 parts of organic bentonite and 5 parts of zinc oxide were placed in the internal mixer according to the mass fraction ratio. After mixing, stir with a mixer for 20 minutes, and control the temperature at 150°C; then add 4 parts of carbon black, 3 parts of clay, and 5 parts of vaseline to the above mixture respectively according to the mass fraction ratio. Stir the mixer for 30 minutes; extrude the above-mentioned high-speed mixed mixture in a twin-screw extruder to make pellets, and then put the pellets into a fully automatic integrated extruder for extrusion. The vacuum is 0.4MPa, and the cooling water temperature is 20°C Vacuum cooling and shaping under the conditions to obtain a water-swellable resin; then the above-mentioned water-swellable resin is placed in a high-speed pulverizer and pulverized into resin particles with a particle size of 90 mesh; finall...

example 3

[0023] First, 62 parts of dimethyl diallyl ammonium chloride, 10 parts of ethylene-butylene-styrene block copolymer, 6 parts of organic bentonite and 7 parts of zinc oxide were placed in the internal mixer according to the mass fraction ratio. After mixing, stir with a mixer for 22 minutes, and control the temperature at 180°C; then, according to the mass fraction ratio, add 5 parts of carbon black, 3 parts of clay, and 7 parts of vaseline to the above mixture, and at a temperature of 150°C, pass through a high-speed The mixer was stirred for 40 minutes; the above-mentioned high-speed mixed mixture was extruded and pelletized by a twin-screw extruder, and then the pellets were added to a fully automatic integrated extruder for extrusion. The vacuum was 0.5MPa, and the cooling water temperature was 23°C Under the condition of vacuum cooling and shaping, the water-swellable resin is obtained; then the above-mentioned water-swellable resin is placed in a high-speed pulverizer and ...

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Abstract

The invention discloses a preparation method of anti-seepage concrete, belonging to the technical field of building material preparation. The preparation method comprises the following steps: mixing dimethyl diallyl ammonium chloride, an ethylene-butylene-styrene block copolymer, organobentonite, zinc oxide, carbon black, argil and vaseline to prepare a water swelling resin, and mixing with cement, sand, macadam and water. The concrete interior resin has strong hydrophilic groups, and can swell after being bonded with water, so that the volume increases; and thus, the resin fills the pores inside the concrete and forms a waterproof layer, thereby enhancing the seepage resistance of the concrete and prolonging the service life of the concrete. The method has the advantages of accessible preparation materials and low cost, and has favorable development prospects in construction industry.

Description

technical field [0001] The invention relates to a method for preparing anti-seepage concrete, which belongs to the technical field of building material preparation. Background technique [0002] Conventional concrete is made by mixing cement, gravel, sand and water in proportion. In the water seepage environment, the fine particles in the concrete solidification period are easy to rinse and lose the slurry. After curing, there are many pores. Poor waterproof performance; concrete buildings and water soaked in water for a long time require concrete to have a certain degree of waterproof and impermeability, such as the construction of deep mines, the shaft concrete function, because it passes through complex geology and many aquifers, the anti-seepage water of the project is the first choice for mines at home and abroad. It is a recognized technical problem in the construction industry; another example is that there are concrete waterproofing problems in reservoir dams, highwa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B16/04C04B111/27
CPCC04B28/00C04B2111/27C04B14/06C04B14/02C04B16/04
Inventor 肖艾平
Owner 广东盈坚实业集团有限公司
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