CN103304161A - Novel Portland slag P.SB42.5 cement - Google Patents
Novel Portland slag P.SB42.5 cement Download PDFInfo
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- CN103304161A CN103304161A CN2013102531049A CN201310253104A CN103304161A CN 103304161 A CN103304161 A CN 103304161A CN 2013102531049 A CN2013102531049 A CN 2013102531049A CN 201310253104 A CN201310253104 A CN 201310253104A CN 103304161 A CN103304161 A CN 103304161A
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- cement
- slag
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- portland
- portland slag
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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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- Curing Cements, Concrete, And Artificial Stone (AREA)
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
The invention belongs to building material technical field, relate to general purpose portland cement, especially a kind of novel slag portland P.SB42.5 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 slag portland P.SB42.5 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.SB42.5 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 make section thickness take it as gelling material and be the method (CN1081168) of 6-20 millimeters building slab, in ordinary Portland cement, to mix fineness less than 20% pozzolanic materials 20%-50%, the building slab of add again sand, water and fortifying fibre, 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) be the artificial volcanic ash blended material made through vertical shaft kiln roasting take rubbish and shale, clay as raw material as adulterant, form take silicate cement as the base material mix.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, the low performances such as perviousness; Production technique is simple, facility investment economizes very much, and manufacturing cost is very cheap, simultaneously energy treating refuse, improvement environment.
By the technical characterictic contrast, above-mentioned publication document and the present patent application have more different.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, propose a kind of novel slag portland P.SB42.5 cement, this cement proportion science, and intensity is high, wear resistance is 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.SB42.5 cement, it consists of component and weight percentage ranges is respectively:
Grog 64-66%
Wingdale 4-6%
Slag 23-27%
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 flyash of institute of the present invention admixture has increased grindability, when improving platform 2-5t/ hour, has improved in addition the elementary divergence increase of cement adaptability and has reached 20-40mm.
3, 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/tons, 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 benefit and social benefit for society and enterprise, improve thus 3 days intensity 1-2 MPas.
4, the present invention adopts the industrial waste Slag Mixture that produces in steel mill's production process, has not only reduced production cost, and has eliminated source of pollution, economic environmental protection.Adopt Slag Mixture, improved the later strength of cement, guarantee the quality of engineering construction.
Embodiment
Below by specific embodiment the present invention is described in further detail.Need to prove, the 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.SB42.5 cement, it consists of component and weight percent is respectively:
Grog 65%
Wingdale 5%
Slag 25%
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.SB42.5 cement, it consists of component and weight percent is respectively:
Grog 64%
Wingdale 6%
Slag 25%
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.SB42.5 cement, it consists of component and weight percent is respectively:
Grog 66%
Wingdale 5%
Slag 24%
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.SB42.5 cement is characterized in that: it consists of component and weight percentage ranges is respectively:
Grog 64-66%
Wingdale 4-6%
Slag 23-27%
Desulfurated plaster 4-6%.
2. novel slag portland P.SB42.5 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 |
|---|---|---|---|
| CN2013102531049A CN103304161A (en) | 2013-06-24 | 2013-06-24 | Novel Portland slag P.SB42.5 cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102531049A CN103304161A (en) | 2013-06-24 | 2013-06-24 | Novel Portland slag P.SB42.5 cement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103304161A true CN103304161A (en) | 2013-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102531049A Pending CN103304161A (en) | 2013-06-24 | 2013-06-24 | Novel Portland slag P.SB42.5 cement |
Country Status (1)
| Country | Link |
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| CN (1) | CN103304161A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106477924A (en) * | 2016-09-13 | 2017-03-08 | 广西大学 | A kind of high temperature resistant complex cement and preparation method thereof |
| CN114213041A (en) * | 2021-10-13 | 2022-03-22 | 兰溪南方水泥有限公司 | High-slag-powder-mixing-amount low-heat cement and preparation method thereof |
-
2013
- 2013-06-24 CN CN2013102531049A patent/CN103304161A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106477924A (en) * | 2016-09-13 | 2017-03-08 | 广西大学 | A kind of high temperature resistant complex cement and preparation method thereof |
| CN114213041A (en) * | 2021-10-13 | 2022-03-22 | 兰溪南方水泥有限公司 | High-slag-powder-mixing-amount low-heat cement and preparation method thereof |
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| Date | Code | Title | Description |
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| 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: 20130918 |