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Application of tailing machine-made sand winnowing powder in premixed concrete

A technology for ready-mixed concrete and concrete, which is applied in the field of new green environmental protection and energy-saving building materials, can solve the problems of unguaranteed quality, immature utilization technology, increased cost, etc., so as to save cement consumption, improve workability and reduce water consumption. heat effect

Inactive Publication Date: 2016-06-08
NANTONG TIEYUE BUILDING MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Limestone powder concrete is a new type of building material in my country. Its superior performance has been widely recognized, but it is still in the initial stage of development in China, and the utilization technology is not yet mature enough.
The current concrete mineral admixtures are fly ash and granulated slag powder, the quality cannot be guaranteed, and the cost is increased

Method used

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  • Application of tailing machine-made sand winnowing powder in premixed concrete
  • Application of tailing machine-made sand winnowing powder in premixed concrete
  • Application of tailing machine-made sand winnowing powder in premixed concrete

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of concrete, the ratio of raw materials per cubic concrete is as follows: cement: 240kg, fly ash: 60kg, slag powder: 60kg, stone powder: 40kg, gravel: 1060kg, sand: 780kg, admixture: 3.6kg and water: 166kg.

[0021]

[0022]

Embodiment 2

[0024] An application of tailings machine-made sand winnowing stone powder in ready-mixed concrete. The ratio of raw materials per cubic concrete is as follows: cement: 220kg, fly ash: 60kg, mineral powder: 60kg, stone powder: 20kg, gravel: 1060kg, sand: 780kg, admixture: 3.6kg and water: 166.

[0025]

[0026] Table three: embodiment 2 concrete ratio.

[0027]

Embodiment 3

[0029] An application of tailings machine-made sand winnowing stone powder in ready-mixed concrete. The ratio of raw materials per cubic concrete is as follows: cement: 220kg, fly ash: 55kg, mineral powder: 55kg, stone powder: 30kg, gravel: 1060kg, sand: 780kg, admixture: 3.6kg and water: 166.

[0030]

[0031]

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PUM

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Abstract

The invention provides application of tailing machine-made sand winnowing powder in premixed concrete. The concrete at least comprises cement, coal ash, mineral powder, stone powder, stone, sand and additives. Each cubic meter of concrete comprises 210-230 kg of cement, 40-60 kg of coal ash, 40-60 kg of mineral powder, 20-40 kg of stone powder, 1000-1060 kg of stone, 750-780 kg of sand and 3-3.6 kg of additives. The invention provides application of a novel mineral mixing material in concrete. The cement consumption is saved, the workability of concrete is improved, the hydration heat, contraction and the like are reduced, technological performance is good, economic benefits are remarkable, and the concrete conforms to the energy conservation, emission reduction and resource recycle related strategies promoted by China.

Description

technical field [0001] The invention relates to the field of green building materials and new green, environment-friendly and energy-saving building materials for waste recycling and reuse, in particular to the application of wind-separated stone powder of tailings machine-made sand in ready-mixed concrete. Background technique [0002] Limestone powder concrete is a new type of building material in my country, and its superior performance has been widely recognized, but it is still in the initial stage of development in China, and the utilization technology is not yet mature enough. The current concrete mineral admixtures are fly ash and granulated slag powder, which cannot guarantee the quality and increases the cost. [0003] The stone powder produced during the sand making process of tailings machine-made sand is a resource, and it is a pity that it cannot be fully utilized. It is treated as solid waste, causing a lot of waste and causing serious pollution to the environ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00
CPCC04B40/0039
Inventor 俞向东蔡正国蔺情钱伟
Owner NANTONG TIEYUE BUILDING MATERIAL TECH CO LTD
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