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High-performance concrete

A high-performance concrete and finely ground limestone powder technology, applied in climate sustainability, sustainable waste treatment, solid waste management, etc. problems, to achieve the effect of reducing production costs, reducing water consumption, and reducing hydration heat release

Inactive Publication Date: 2008-12-10
泰州市华荣水泥有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the largest amount of domestic use is the dry discharge of fly ash in thermal power plants mixed into concrete. Although it can reduce the amount of cement, the quality variation coefficient of fly ash is large, which often leads to poor workability of concrete and large fluctuations in strength, making concrete the effect is not good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1. Embodiment 1 is to prepare high-performance concrete with a concrete strength grade of C10. In this embodiment, JM series water reducing agents are used. The fly ash is Class II fly ash, and the mineral powder is S95 grade mineral powder. The ratio is: cement: fly ash: finely ground limestone powder: mineral powder: sand: gravel: water: water reducing agent = 130Kg / m3: 70Kg / m3: 55Kg / m3: 50Kg / m3: 819Kg / m3: 1090Kg / m3: 158Kg / m3: 3.66Kg / m3;

Embodiment 2

[0011] Embodiment 2. Embodiment 2 is to prepare high-performance concrete whose concrete strength grade is C15. In this embodiment, JM series water reducer is used. The fly ash is Class II fly ash, and the mineral powder is S95 grade mineral powder. The ratio is: cement: fly ash: finely ground limestone powder: mineral powder: sand: gravel: water: water reducing agent = 140Kg / m3: 70Kg / m3: 55Kg / m3: 55Kg / m3: 821Kg / m3: 1076Kg / m3: 161Kg / m3: 3.84Kg / m3;

Embodiment 3

[0012] Example 3, Example 3 is to prepare high-performance concrete with a concrete strength grade of C20. In this example, JM series water reducing agents are used. The fly ash is Class II fly ash, and the mineral powder is S95 grade mineral powder. The ratio is: cement: fly ash: finely ground limestone powder: mineral powder: sand: gravel: water: water reducing agent = 150Kg / m3: 75Kg / m3: 56Kg / m3: 45Kg / m3: 820Kg / m3: 1040Kg / m3: 162Kg / m3: 3.912Kg / m3;

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PUM

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Abstract

The invention discloses a high performance concrete. The raw materials are cement, fly ash, powdered ore, sand, gravel, water and milled limestone powder. The ratio of the cement to the fly ash to the milled limestone powder to the powdered ore to the sand to the gravel to the water is 100-400kg / m<3>: 40-80kg / m<3>: 15-100kg / m<3>: 40-100kg / m<3>: 650-890kg / m<3>: 1020-1150kg / m<3>: 140-180kg / m<3>. The high performance concrete not only saves cost but also has good workability and improves the durability.

Description

technical field [0001] The invention relates to a high-performance concrete. Background technique [0002] With the development of commercial concrete industry and its technology, the role of mineral admixtures in concrete composition has been paid more and more attention. At present, the largest amount of domestic use is the dry discharge of fly ash in thermal power plants mixed into concrete. Although it can reduce the amount of cement, the quality variation coefficient of fly ash is large, which often leads to poor workability of concrete and large fluctuations in strength, making concrete The effect is not good. Contents of the invention [0003] The invention relates to a high-performance concrete, which not only can save cost, but also has good workability and improved durability. [0004] The present invention has adopted following technical scheme: a kind of high-performance concrete, its raw material comprises cement, fly ash, mineral powder, sand, stone, water,...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B18/08C04B18/12C04B14/06
CPCC04B14/28C04B28/02Y02W30/91C04B14/02C04B14/06C04B18/08C04B2103/302C04B24/226C04B20/0076C04B20/026
Inventor 王如荣
Owner 泰州市华荣水泥有限公司
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