Preparation method of anti-seepage concrete

A technology for concrete and preparation steps, applied in the field of water-impermeable concrete preparation, can solve the problems of short service life, increased volume and high cost, and achieve the effects of improving water-impermeability, prolonging service life and low cost

Active Publication Date: 2015-11-04
广东盈坚实业集团有限公司
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  • Abstract
  • Description
  • Claims
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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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Embodiment Construction

[0016] Firstly, 60-70 parts of dimethyl diallyl ammonium chloride, 10-18 parts of ethylene-butylene-styrene block copolymer, 5-10 parts of organic bentonite and 3-8 parts Zinc oxide is mixed in an internal mixer, then stirred by a mixer for 18 to 22 minutes, and the temperature is controlled at 120°C to 180°C; then, according to the mass fraction ratio, 1 to 5 parts of carbon black, 2 to 3 parts of clay, 3-8 parts of vaseline are added to the above mixture respectively, and stirred by a high-speed mixer for 20-40 minutes at a temperature of 100°C-150°C; the above-mentioned high-speed mixed mixture is extruded and granulated by a twin-screw extruder , and then add the pellets to a fully automatic integrated extruder for extrusion, and carry out vacuum cooling and shaping under the conditions of a vacuum of 0.3-0.5MPa and a cooling water temperature of 18°C-23°C to obtain a water-swellable resin; The water-swellable resin prepared above is placed in a high-speed pulverizer and c...

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PUM

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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 Applications(China)
IPC IPC(8): C04B28/00C04B16/04C04B111/27
CPCC04B28/00C04B2111/27C04B14/06C04B14/02C04B16/04
Inventor 雷春生盛艳花周丽花
Owner 广东盈坚实业集团有限公司
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