Novel Portland slag cement P.SA42.5

A P.SA42.5, silicate technology, used in cement production and other directions, can solve the problems of strength, impermeability, water retention, corrosion resistance and wear resistance in general, to prevent cracks, reduce and inhibit Chloride ion diffusivity, the effect of reducing the heat of hydration

Inactive Publication Date: 2013-10-09
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 silicate P.SA42.5 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 cement P.SA42.5

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A novel slag Portland P.SA42.5 cement, its constituents and weight percentages are respectively:

[0022] Clinker 70%

[0023] Limestone 5%

[0024] Slag 20%

[0025] Desulfurization gypsum 5%;

[0026] 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

[0028] A novel slag Portland P.SA42.5 cement, its constituents and weight percentages are respectively:

[0029] Clinker 68%

[0030] Limestone 6%

[0031] Slag 21%

[0032] Desulfurization gypsum 5%;

[0033] 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

[0035] A novel slag Portland P.SA42.5 cement, its constituents and weight percentages are respectively:

[0036] Clinker 72%

[0037] Limestone 5%

[0038] Slag 18%

[0039] Desulfurization gypsum 5%;

[0040] 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.

[0041] Experimental performance index of the present invention:

[0042]

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Abstract

The invention relates to novel Portland slag cement P.SA42.5. The cement comprises the following components by weight percent: 68-72% of clinker, 4-6% of limestone, 18-20% of slag and 4-6% of desulfurization gypsum. The cement has the positive effects that the industrial waste slag produced in the production process in a steel mill is adopted for burdening, thus not only reducing the production cost but also eliminating the pollution sources and achieving the economic property and environment friendliness; and by adopting the slag for burdening, the later strength of the cement is improved and the quality of the engineering construction is ensured.

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.SA42.5 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 silicate P.SA42.5 cement has general performance in terms of strength, impermeability, water retention, corrosion resistance and wear resistance, and can only be used in general engineering construction. Therefore, it is very necessary to seek a new type of slag portland P.SA42.5 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 cross...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/14
CPCY02P40/10
Inventor 刘德胜王长路
Owner 天津山水水泥有限公司
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