Light-weight high-strength concrete material and preparation method thereof

Abstract

The invention discloses a light-weight high-strength concrete material and a preparation method thereof. The light-weight high-strength concrete material is prepared from the following components in parts by weight: 1100 to 1200 parts of coarse aggregate, 1000 to 1100 parts of cement, 800 to 900 parts of pottery sand, 150 to 200 parts of silica fume, 10 to 15 parts of dispersing agent, 50 to 60 parts of modified hollow glass beads, and 200 to 250 parts of water; the coarse aggregate is shale ceramisite; cement is grade-G oil-well silicate cement; and the dispersing agent is sulfonated alkyl naphthalene methyl resin. The method comprises the following steps: placing the dispersing agent into a stirrer, adding an appropriate amount of water, stirring, pouring the ceramsite, the pottery sand,the cement and the remaining water, continuously stirring, finally adding the silica fume and the modified hollow glass beads, uniformly stirring, pouring into a strength mold, wrapping and sealing,and maintaining in a water-bath maintenance box. By adopting the light-weight high-strength concrete material, the pressure resisting strength and the corrosion resistance of the existing light-weighthigh-strength concrete can be improved, the light-weight high-strength concrete is also ensured to have good durability, the production period is short, and the market prospect is wide.

Description

Technical field [0001] The invention relates to a lightweight high-strength concrete material and a preparation method thereof, and belongs to the technical field of building materials. Background technique [0002] Lightweight high-strength concrete (HSLC) has the characteristics of light weight, high strength, low density, low elastic modulus, and good durability. It has good heat preservation and heat insulation properties. In 1913, the United States first used a cyclonic kiln to fire shale ceramsite , Laid the foundation for the development of lightweight and high-strength concrete, and has achieved rapid development in various countries since the 1960s, especially in the United States, Northern Europe, Japan and other countries, which are widely used in high-rise buildings, super high-rise building structures, and large-span Bridges and urban overpasses and marine engineering. [0003] The research and development of lightweight high-strength concrete in my country started re...

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Problems solved by technology

[0005] Although the above technologies can prepare lightweight concrete materials with high compressive strength to a certain extent, they have high requirements for the raw materials mixed in, and the industrial production process is relatively complicated, so the apparent density of the prepared concrete materials cannot be effectively reduced. , there are certain feasibility problems in the actual construction process