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High-performance green and environment-friendly composite mineral admixture applicable to cement and concrete

A green and environmentally friendly technology for compounding minerals, which is applied in the field of mineral admixtures to reduce preparation costs, ensure water retention and fluidity, and ensure stability.

Inactive Publication Date: 2016-08-10
成都明翔建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of building materials that are not currently used to replace cement or concrete, and provide a high-performance green and environmentally friendly composite mineral admixture suitable for cement and concrete

Method used

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  • High-performance green and environment-friendly composite mineral admixture applicable to cement and concrete
  • High-performance green and environment-friendly composite mineral admixture applicable to cement and concrete
  • High-performance green and environment-friendly composite mineral admixture applicable to cement and concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The environment-friendly composite mineral admixture of the present invention mainly consists of 45 parts of SiO 2 , 18 parts of Al 2 o 3 , 17 parts of CaO, 9 parts of MgO, 7 parts of Fe 2 o 3 , 1.5 parts of SO 3 and 0.05 Cl - Composition, the components of the present invention are used in parts by weight. Among them, the Cl - It is self-contained in various raw materials, and its content is less than 0.06 parts by mass to meet the index standard of concrete. The raw materials of the admixture in this embodiment are wastes such as water-quenched slag from steel mills, fly ash, water-quenched phosphorus slag, silicon dioxide and hemihydrate gypsum, so the cost is quite low. For the convenience of explanation, the raw materials of the admixture in all the embodiments of the present invention are illustrated by taking water-quenched slag, fly ash, water-quenched phosphorus slag and other wastes, silicon dioxide and hemihydrate gypsum as examples. The raw material ...

Embodiment 2

[0036] This embodiment is basically the same as Embodiment 1, and its difference is that the environment-friendly composite mineral admixture in the present embodiment mainly consists of 47 parts of SiO 2 , 16 parts of Al 2 o 3 , 16 parts of CaO, 7 parts of MgO, 5 parts of Fe 2 o 3 , 1.4 parts of SO 3 and Cl of 0.04 - Composition, what the component of this embodiment adopts is by weight. The raw materials used in this embodiment are: 42 parts of water-quenched slag from steel mills, 35 parts of fly ash, 10 parts of water-quenched phosphorus slag, 4 parts of silicon dioxide and 0.08 part of hemihydrate gypsum, Wherein the weight of each raw material used is in parts by weight.

[0037] The present invention detects according to GB / T 51003-2014 "Technical Specifications for the Application of Mineral Admixtures", and its relevant detection indicators are shown in Table 3.

[0038]

[0039] Table three

[0040] As can be known from the final test data in Table 3, the ...

Embodiment 3

[0043] This embodiment is basically the same as Embodiment 1, and its difference is that the environment-friendly composite mineral admixture in the present embodiment mainly consists of 48 parts of SiO 2 , 15 parts of Al 2 o 3 , 14 parts of CaO, 5 parts of MgO, 4 parts of Fe 2 o 3 , 1 part of SO 3 and 0.03 Cl - Composition, what the component of this embodiment adopts is by weight. The raw materials used in this embodiment are: 34 parts of water-quenched slag from steel mills, 40 parts of fly ash, 15 parts of water-quenched phosphorus slag, 6 parts of silicon dioxide and 0.12 parts of hemihydrate gypsum, Wherein the weight of each raw material used is in parts by weight.

[0044] The present invention detects according to GB / T 51003-2014 "Technical Specifications for the Application of Mineral Admixtures", and its relevant detection indicators are shown in Table 4.

[0045]

[0046] Table four

[0047] As can be known from the final test data in Table 4, the admixtur...

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Abstract

The invention discloses a high-performance green and environment-friendly composite mineral admixture applicable to cement and concrete. The high-performance green and environment-friendly composite mineral admixture is characterized by consisting of the following components in parts by weight: 45-50 parts of SiO2, 14-18 parts of Al2O3, 13-17 parts of CaO, 4-9 parts of MgO, 2.5-7 parts of Fe2O3, 0.8-1.5 parts of SO3 and 0-0.05 part of Cl<->. The admixture disclosed by the invention is simple in raw material component; since the raw materials for preparing the admixture are extracted from wastes such as water quenching slag, coal ash, and water quenching phosphor slag of steel plants, discharge of harmful wastes can be effectively reduced, the wastes can be recycled, the purposes of energy conservation and emission reduction can be sufficiently achieved, and thus the admixture is applicable to popularization and application.

Description

technical field [0001] The invention relates to a mineral admixture, in particular to a high-performance green and environment-friendly composite mineral admixture suitable for cement and concrete. Background technique [0002] With the progress of society and the rapid development of economy, the construction industry across the country has developed extremely rapidly in recent years. Cement and concrete are indispensable building materials in the process of building construction. Therefore, the demand for cement and concrete in modern society The quantity is extremely huge. However, the cost of preparing cement or concrete is relatively high at present, and people have not been able to find suitable materials to replace cement or concrete, so it is not conducive to the development needs of the entire construction industry. Finding a building material that can replace cement or concrete is a bottleneck that people urgently need to break through. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B22/12
CPCC04B40/0039C04B2201/50C04B14/06C04B14/303C04B22/064C04B22/066C04B14/308C04B22/06C04B22/12C04B28/04
Inventor 郑志
Owner 成都明翔建材有限公司
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