CN103342480A - Novel Portland slag cement P.SA42.5 - Google Patents
Novel Portland slag cement P.SA42.5 Download PDFInfo
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- CN103342480A CN103342480A CN2013102533909A CN201310253390A CN103342480A CN 103342480 A CN103342480 A CN 103342480A CN 2013102533909 A CN2013102533909 A CN 2013102533909A CN 201310253390 A CN201310253390 A CN 201310253390A CN 103342480 A CN103342480 A CN 103342480A
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- cement
- slag
- novel
- portland
- burdening
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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- Processing Of Solid Wastes (AREA)
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
The invention belongs to building material technical field, relate to general purpose portland cement, especially a kind of novel slag portland P.SA42.5 cement.
Background technology
General purpose portland cement is with Portland clinker and an amount of gypsum, and the hydraulic cementing materials made of the mixing material of regulation, uses very extensive.Existing slag portland P.SA42.5 cement shows aspect intensity, impermeability, water-retentivity, erosion resistance and wear resistance generally, also can only be applied to the common engineering building.Therefore, it is very necessary seeking the stronger novel slag portland P.SA42.5 cement of a kind of function.
By retrieval, find following two pieces of relevant publication documents:
1, a kind of modified portland cement composite material and be that gelling material is made the method that section thickness is 6-20 millimeters building slab (CN1081168) with it, be in ordinary Portland cement, to mix fineness less than 20% pozzolanic materials 20%-50%, the building slab of add sand, water and fortifying fibre again, making, need 50 ℃ of-90 ℃ of temperature, humidity reaches under 80%-100% the condition carries out maintenance.
2, a kind of composite silicate cement (CN1122784) is to be that the artificial volcanic ash blended material that raw material is made through vertical shaft kiln roasting is adulterant with rubbish and shale, clay, forms for the base material mix with the silicate cement.The blended amount of its blended material is 30%-40%, and the highest volume can reach more than 60%, and generally the ultimate compression strength than grog 28d only reduces 3.3%-7.7%, and can improve the cement clinker stability, and solves the ubiquitous stability problem of shaft kiln cement; Its product has early strong, stable, high hardness and fastness to rubbing, low performances such as perviousness; Production technique is simple, facility investment economizes very much, and manufacturing cost is very cheap, energy treating refuse simultaneously, improvement environment.
By the technical characterictic contrast, above-mentioned publication document and the present patent application have more different.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art part, propose a kind of novel slag portland P.SA42.5 cement, this cement proportion science, and intensity height, wear resistance are good, with low cost.
The objective of the invention is to be achieved through the following technical solutions:
A kind of novel slag portland P.SA42.5 cement, it constitutes component and weight percentage ranges is respectively:
Grog 68-72%
Wingdale 4-6%
Slag 18-20%
Desulfurated plaster 4-6%.
And, described material is mixed according to weight proportion, evenly grinding can become finished product in cement grinding mill.
Advantage of the present invention and positively effect are:
1, the slag of institute of the present invention admixture can increase the 2-4 MPa to 28 days intensity of cement, reduces hydration heat, is conducive to the crack that prevents that internal temperature rise of mass concrete from causing.In addition, the cement of admixture slag can make maturing have good sulphate-corrosion resistance, reduce and inhibition chlorion diffusion, and anti-marine denudation, anti-carbonization, alkali resistant.。
2, the desulfurated plaster of institute of the present invention admixture further reduces cement cost, ton cement ingredient cost ratio adds the plaster of paris and reduces by 4 yuan/ton, replace the plaster of paris to do the retardant of producing cement with desulfurated plaster, the comprehensive utilization waste residue is turned waste into wealth, both saved gypsum resource, again can contaminated solution, bring good economic benefits and social benefit for society and enterprise, improve 3 days intensity 1-2 MPas thus.
3, the present invention adopts the industrial waste slag batching that produces in steel mill's production process, has not only reduced production cost, and has eliminated source of pollution, economic environmental protection.The employing slag is prepared burden, and has improved the later strength of cement, guarantees the quality of engineering construction.
Embodiment
Below by specific embodiment the present invention is described in further detail.Need to prove that present embodiment is descriptive, is not determinate, can not limit protection scope of the present invention with this.
Embodiment 1:
A kind of novel slag portland P.SA42.5 cement, it constitutes component and weight percent is respectively:
Grog 70%
Wingdale 5%
Slag 20%
Desulfurated plaster 5%;
Above-mentioned various materials are mixed according to weight proportion, and evenly grinding can become finished product in cement grinding mill.
Embodiment 2:
A kind of novel slag portland P.SA42.5 cement, it constitutes component and weight percent is respectively:
Grog 68%
Wingdale 6%
Slag 21%
Desulfurated plaster 5%;
Above-mentioned various materials are mixed according to weight proportion, and evenly grinding can become finished product in cement grinding mill.
Embodiment 3:
A kind of novel slag portland P.SA42.5 cement, it constitutes component and weight percent is respectively:
Grog 72%
Wingdale 5%
Slag 18%
Desulfurated plaster 5%;
Above-mentioned various materials are mixed according to weight proportion, and evenly grinding can become finished product in cement grinding mill.
Experimental performance index of the present invention:
Claims (2)
1. novel slag portland P.SA42.5 cement is characterized in that: it constitutes component and weight percentage ranges is respectively:
Grog 68-72%
Wingdale 4-6%
Slag 18-20%
Desulfurated plaster 4-6%.
2. novel slag portland P.SA42.5 cement according to claim 1 is characterized in that: described material is mixed according to weight proportion, and evenly grinding can become finished product in cement grinding mill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102533909A CN103342480A (en) | 2013-06-24 | 2013-06-24 | Novel Portland slag cement P.SA42.5 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102533909A CN103342480A (en) | 2013-06-24 | 2013-06-24 | Novel Portland slag cement P.SA42.5 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103342480A true CN103342480A (en) | 2013-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102533909A Pending CN103342480A (en) | 2013-06-24 | 2013-06-24 | Novel Portland slag cement P.SA42.5 |
Country Status (1)
| Country | Link |
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| CN (1) | CN103342480A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108033694A (en) * | 2017-12-26 | 2018-05-15 | 天津山水水泥有限公司 | Novel silicate cement and preparation method thereof |
-
2013
- 2013-06-24 CN CN2013102533909A patent/CN103342480A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108033694A (en) * | 2017-12-26 | 2018-05-15 | 天津山水水泥有限公司 | Novel silicate cement and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131009 |