High-performance cement and concrete and their production

A high-performance concrete, high-performance technology, used in cement production and other directions to achieve the effects of good fluidity, small loss over time and high density

Inactive Publication Date: 2007-01-17
张卫党
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: fully utilize the existing ash resources, and develop a kind of cement and concrete material, which can not only reduce the consumption of resources and energy, but also protect the environment and the performance of this kind of cement and concrete is excellent

Method used

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  • High-performance cement and concrete and their production
  • High-performance cement and concrete and their production
  • High-performance cement and concrete and their production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: Waste slag is furnace slag, manganese slag, slag, consumption 70%, activator is Portland cement clinker, unslaked lime, anhydrite, consumption 26%, a small amount of performance regulator is limestone 3%, trace performance regulator 1 %, large-scale production adopts process I, and its cement performance test results are shown in Table 1, and the cement's real strength label reaches 52.5 grades.

[0027] Compare table

[0028] It only needs to use 300kg / m2 to mix C30 and C45 anti-seepage pumping concrete with this cement 3 and 400kg / m 3 For cement, it is enough to control the initial slump of concrete to 170±10mm. The concrete proportion and properties are shown in Table 2.

[0029]

[0030] At the same time, the concrete has good economy, and the cost of the C30 concrete of the present invention is 10 yuan / m lower than that of the same C30 concrete prepared with other materials such as cement. 3 About, while C45 is about 20 yuan low...

Embodiment 2

[0031] Embodiment 2: waste residue is fly ash, slag, silicon slag, consumption 73%, and activator is portland cement clinker, natural dihydrate gypsum, consumption 25%, trace performance regulator 2%, and wherein 0.5% is in grinding The remaining 1.5% is added after grinding, and the production is carried out according to process III. The properties of the finished product are shown in Table 3, and the actual strength of the cement reaches 72.5 grades.

[0032] Compare table

area

m 2 / kg

SO 3

(%)

standard

consistency

(%)

install

Complete

sex

initial setting

time

h:m

final set

time

h:m

Pure pulp

Liquidity

mm

Mortar

Liquidity

three days strength

MPa

twenty eight days strong

degree MPa

heat of hydration

KJ / kg

432

2.6

20

combine

grid

5:00

6:30

rise

...

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PUM

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Abstract

High-performance cement, concrete and its production are disclosed. The cement consists of industrial fag end, activator, functional regulator and performance regulator, and Bosi specific surface is 300-550m2/kg. Its advantages include excellent fluidity and endurance, less loss and hydrated heat energy, better density and strength.

Description

technical field [0001] The invention belongs to the field of building materials, and specifically refers to a high-performance cement and high-performance concrete using ash and slag and a manufacturing method thereof. Background technique [0002] The utilization of industrial ash has always been a major issue in environmental protection. Looking at the status quo of waste utilization in various industries, only the engineering construction field can consume a large amount of solid waste, so various waste residues can be optimally used in the field of engineering construction , especially high-performance cement and concrete with high added value is one of the best ways to maximize the value of waste residue. The existing Portland cement is produced according to the relevant cement standards, not completely according to the performance characteristics of the concrete used in the project. There are often places where the performance of the cement is out of touch with the req...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/24C04B7/14C04B7/42C04B7/36
CPCC04B7/243Y02P40/10
Inventor 张卫党
Owner 张卫党
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