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Nano-modified high-durability concrete material and preparation method thereof

A durable concrete and nano-modification technology, applied in building components, buildings, building structures, etc., can solve the problems that no research shows that MIF and LPC work together, and the improvement effect is not obvious, so as to reduce material performance and cost. , The effect of anti-chloride ion penetration performance

Active Publication Date: 2016-08-17
SHANDONG ELECTRIC POWER PIPELINE ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The experimental results show that the durability of HPC with the protective layer structure is improved, but the improvement effect is not obvious, and no research has shown that MIF and LPC have better synergistic performance with ordinary concrete

Method used

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  • Nano-modified high-durability concrete material and preparation method thereof
  • Nano-modified high-durability concrete material and preparation method thereof
  • Nano-modified high-durability concrete material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A nano-modified high-durability concrete material, which includes a high-density concrete protective layer A, an ordinary concrete layer B and an ordinary concrete roughening treatment layer C; the high-density concrete protective layer A is located above the ordinary concrete layer B; the The ordinary concrete chiseling treatment layer C is located between the high-density concrete protective layer A and the ordinary concrete layer B;

[0031] The weight ratio of each component of the above-mentioned high-density concrete protective layer A raw material is 20.75% of cement, 5.28% of fly ash, 7.55% of slag, 4.15% of silica fume, 0.38% of nano-silica, 52.83% of sand, and 0.75% of water reducer , Water 8.31%.

[0032] The above ordinary concrete layer B is made of C40 concrete material, and its material ratio is: water 8.3%, cement 20.4%, sand 24.3%, gravel 47.0%;

[0033] The specific preparation method of the above-mentioned nano-modified high-durability concrete mater...

Embodiment 2

[0041] A nano-modified high-durability concrete material, which includes a high-density concrete protective layer A, an ordinary concrete layer B and an ordinary concrete roughening treatment layer C; the high-density concrete protective layer A is located above the ordinary concrete layer B; the The ordinary concrete chiseling treatment layer C is located between the high-density concrete protective layer A and the ordinary concrete layer B;

[0042] The weight ratio of each component of the above-mentioned high-density concrete protective layer A raw material is 20.63% of cement, 5.25% of fly ash, 7.51% of slag, 4.13% of silica fume, 0.75% of nano-silica, 52.53% of sand, and 0.94% of water reducer , Water 8.26%.

[0043] The specific preparation method of the above-mentioned nano-modified high-durability concrete material is as follows:

[0044] (1) Mix water, cement, sand, and stones according to the weight ratio to make ordinary concrete slurry for later use;

[0045] (2...

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Abstract

The invention discloses a nano-modified high-durability concrete material and a preparation method thereof, and belongs to the technical field of architecture engineering materials. The concrete material comprises a high-density concrete protecting layer A, a common concrete layer B and a common concrete rough chiseling layer C. The high-density concrete protecting layer A is located above the common concrete layer B, and the common concrete rough chiseling layer C is located between the high-density concrete protecting layer A and the common concrete layer B. On the basis of traditional common concrete, hierarchical design is conducted on the concrete, uniform transition of performance of a material system is achieved, then a concrete structure with enhanced endurance is constituted, and thus combined structural and functional performance is achieved. Due to the design of the protecting layer structure, erosion by hazardous substances in the external environment can be resisted, and tremendous waste, caused by preparation of the high-performance uniform structure material, of material performance and cost can be reduced.

Description

technical field [0001] The invention relates to a building material, in particular to a nano-modified concrete material with excellent durability and a preparation method thereof. Background technique [0002] Cement material is currently the most widely used and most used cementitious material, and it plays an irreplaceable role in infrastructure construction. my country's cement production is relatively large. In the past 10 years, my country's cement production accounted for about 60% of the world's total cement production. . With the increasing investment in national infrastructure, the demand for cement and concrete is getting higher and higher, especially the demand for durability and long life of key projects is increasing. At the same time, due to the impact of the environment, the performance degradation of cement-based materials leads to huge economic losses and waste of resources every year, and the durability problem poses hidden dangers to the safety of structur...

Claims

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Application Information

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IPC IPC(8): E04C1/00E04B1/16C04B28/00
CPCC04B28/00E04B1/16E04C1/00C04B14/06C04B14/04C04B18/08C04B18/141C04B18/146C04B2103/302
Inventor 张秀芝侯鹏坤张蕊周宗辉程新其他发明人请求不公开姓名
Owner SHANDONG ELECTRIC POWER PIPELINE ENG