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Slag Portland cement and preparing method thereof

A technology of portland cement and slag, which is applied in the direction of cement production, etc., can solve the problems that cannot be used in fields with stricter hardness requirements, achieve short intervals between initial setting time and final setting time, high later strength, and improve hydraulic performance. Effect

Inactive Publication Date: 2015-07-08
苏州市德莱尔建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the cement provided by this technical scheme has a slag content of 23-27% of the total mass, and limestone and gypsum are added to ensure its hydraulic hardness and later hardness, but it is only suitable for use in general occasions and cannot be used. For areas with stricter hardness requirements

Method used

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  • Slag Portland cement and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of slag portland cement, comprises each component of following mass percentage:

[0026] (1) Portland cement clinker 30.0%;

[0027] (2) Copper slag 15.0%;

[0028] (3) Foundry pig iron slag 30.0%;

[0029] (4) Molybdenum 12.0%;

[0030] (5) Flue dust 8.0%;

[0031] (6) Desulfurization gypsum 5.0%.

[0032] Prepare slag portland cement according to the preparation method provided by the invention, the preparation steps are as follows:

[0033] (1) Material preparation: Accurately weigh each component according to the mass content of each component;

[0034] (2) Pulverization: Pulverize the copper slag, casting pig iron slag and molybdenum slag until the average particle size of the powder is 120um;

[0035] (3) Grinding: Mix the various components together according to the mass percentage and grind until the average particle size is 100um to obtain slag portland cement.

Embodiment 2

[0037] A kind of slag portland cement, comprises each component of following mass percentage:

[0038] (1) Portland cement clinker 65.0%;

[0039] (2) Copper slag 5.0%%;

[0040] (3) Foundry pig iron slag 15.5%;

[0041] (4) Molybdenum slag 5.5%;

[0042] (5) Flue dust 6.5%;

[0043] (6) Desulfurization gypsum 2.5%.

[0044] Prepare slag portland cement according to the preparation method provided by the invention, the preparation steps are as follows:

[0045] (1) Material preparation: Accurately weigh each component according to the mass content of each component;

[0046] (2) Pulverization: Pulverize the copper slag, casting pig iron slag and molybdenum slag until the average particle size of the powder is 120um;

[0047] (3) Grinding: Mix the various components together according to the mass percentage and grind until the average particle size is 100um to obtain slag portland cement.

Embodiment 3

[0049] A kind of slag portland cement, comprises each component of following mass percentage:

[0050] (1) Portland cement clinker 45.0%;

[0051] (2) Copper slag 10.0%;

[0052] (3) Foundry pig iron slag 20.0%;

[0053] (4) Molybdenum slag 10.0%;

[0054] (5) Flue dust 10.0%;

[0055] (6) Desulfurization gypsum 5.0%.

[0056] Prepare slag portland cement according to the preparation method provided by the invention, the preparation steps are as follows:

[0057] (1) Material preparation: Accurately weigh each component according to the mass content of each component;

[0058] (2) Pulverization: Pulverize the copper slag, casting pig iron slag and molybdenum slag until the average particle size of the powder is 120um;

[0059] (3) Grinding: Mix the various components together according to the mass percentage and grind until the average particle size is 100um to obtain slag portland cement.

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Abstract

The invention relates to slag Portland cement and a preparing method thereof and relates to the field of building materials. The slag Portland cement comprises following components by mass: (1) 30.0-65.0% of silicate Portland cement clinker, (2) 5.0-15.0% of copper slag, (3) 15.0-30.0% of blast furnace slag, (4) 5.0-15.0% of molybdenum slag, (5) 5.0-12.0% of flue dust and (6) 2.5-5.0% of gypsum. The slag Portland cement is high in hydraulicity performance, short in interval between initial setting time and final setting time, high in later strength, high in compression resistance and suitable for use in various occasions. The preparing method adopts a process including primary smashing, mixing and grinding. The prepared cement is low in particle size, uniform in quality, high in specific surface area, and improved in hydraulicity performance.

Description

technical field [0001] The invention belongs to the field of building materials, in particular to a slag portland cement and a preparation method of the cement. Background technique [0002] Slag portland cement, also known as slag cement, uses the excellent properties of slag and is added to cement as the aggregate of hydraulic gel materials. Among them, blast furnace slag is widely used. With its excellent wear resistance and anti-skid performance, combined with cement clinker and gypsum, it not only provides the hydraulic performance of cement, but also increases the application range of cement. It can be used on some special road surfaces. used as supplementary material. [0003] The patent document "A Portland Impermeable Cement" with the application number of 200810033235.5 discloses a Portland slag cement. The weight ratio of the cement is: ground cement clinker 35%-50%, slag powder 10%~20%, fly ash 15%~25%, steel slag powder 5%~10%, silicon powder 1%~10%. It can b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/21
CPCY02P40/10
Inventor 计慷
Owner 苏州市德莱尔建材科技有限公司
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