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Novel Portland slag P.SB42.5 cement

A technology of P.SB42.5 and silicate, which is applied in the field of general-purpose Portland cement and new type of slag Portland cement P.SB42.5, which can solve the problems of strength, impermeability, water retention, corrosion resistance and durability. Abrasiveness in general and other problems, to achieve good resistance to sulfate erosion, reduce heat of hydration, reduce and inhibit the effect of chloride ion diffusion performance

Inactive Publication Date: 2013-09-18
天津山水水泥有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing slag slag Portland P.SB42.5 cement has average performance in terms of strength, impermeability, water retention, corrosion resistance and wear resistance, and can only be used in general engineering construction

Method used

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  • Novel Portland slag P.SB42.5 cement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A novel slag Portland P.SB42.5 cement, its constituents and weight percentages are respectively:

[0023] Clinker 65%

[0024] Limestone 5%

[0025] Slag 25%

[0026] Desulfurization gypsum 5%;

[0027] The above-mentioned various substances are mixed together according to the weight ratio, and evenly ground in a cement mill to become a finished product.

Embodiment 2

[0029] A novel slag Portland P.SB42.5 cement, its constituents and weight percentages are respectively:

[0030] Clinker 64%

[0031] Limestone 6%

[0032] Slag 25%

[0033] Desulfurization gypsum 5%;

[0034] The above-mentioned various substances are mixed together according to the weight ratio, and evenly ground in a cement mill to become a finished product.

Embodiment 3

[0036] A novel slag Portland P.SB42.5 cement, its constituents and weight percentages are respectively:

[0037] Clinker 66%

[0038] Limestone 5%

[0039] Slag 24%

[0040] Desulfurization gypsum 5%;

[0041] The above-mentioned various substances are mixed together according to the weight ratio, and evenly ground in a cement mill to become a finished product.

[0042] Experimental performance index of the present invention:

[0043]

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Abstract

The invention relates to novel Portland slag P.SB42.5 cement. The cement comprises the following components by weight percent: 64-66% of clinker, 4-6% of limestone, 23-27% of slag and 4-6% of desulfurization gypsum. The cement has the advantages that industrial waste slag ingredients generated in the production processes in steel mills are adopted, thus not only reducing the production cost but also eliminating pollution sources, achieving economical efficiency and environment friendliness, improving the later strength of the cement and ensuring the quality of engineering construction.

Description

technical field [0001] The invention belongs to the technical field of building materials, and relates to general Portland cement, in particular to a novel slag portland P.SB42.5 cement. Background technique [0002] General-purpose Portland cement is a hydraulic cementitious material made of Portland cement clinker, an appropriate amount of gypsum, and specified mixed materials, and is widely used. The existing slag slag Portland P.SB42.5 cement has general performance in terms of strength, impermeability, water retention, corrosion resistance and wear resistance, and can only be used in general engineering buildings. Therefore, it is very necessary to seek a new type of slag portland P.SB42.5 cement with stronger functions. [0003] Through the search, the following two related published patent documents were found: [0004] 1. A method for modifying ordinary portland cement composite material and using it as a cementitious material to make building components with a cro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/147
CPCY02P40/10
Inventor 刘德胜王长路
Owner 天津山水水泥有限公司
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