CN105884221A - Cement with low alkali content - Google Patents
Cement with low alkali content Download PDFInfo
- Publication number
- CN105884221A CN105884221A CN201610238629.9A CN201610238629A CN105884221A CN 105884221 A CN105884221 A CN 105884221A CN 201610238629 A CN201610238629 A CN 201610238629A CN 105884221 A CN105884221 A CN 105884221A
- Authority
- CN
- China
- Prior art keywords
- cement
- alkali content
- equal
- limestone
- low alkali
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical slag
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to cement with low alkali content. Raw materials of the cement comprise limestone, sandstone, converter slag and raw coal. According to the cement with the low alkali content, the alkali content is controlled from the raw materials of the cement, and low alkali content in cement clinker is further ensured by limiting the alkali content in the raw materials.
Description
Technical field
The present invention relates to building material technical field, be specifically related to a kind of cement with low alkalinity.
Background technology
Alkali is one of the important arch-criminal causing building that cracking occurs, in construction material alkali content number directly
Connect quality and the service life affecting building.How to reduce the alkalinity in cement and be always construction material manufacturing enterprise needs
The technical barrier captured.
Summary of the invention
For solving the above-mentioned problems in the prior art, the invention provides a kind of cement with low alkalinity.
The technique effect of the present invention is achieved through the following technical solutions:
A kind of cement with low alkalinity, raw material includes: limestone, sandstone, vessel slag, raw coal.
Further, in described limestone, alkali content is less than or equal to 0.06%.
Further, in described sandstone, alkali content is less than or equal to 1.7%.
Further, in described vessel slag, alkali content is less than or equal to 0.3%.
Further, in described raw coal, alkali content is less than or equal to 1.5%.
The invention has the beneficial effects as follows:
A kind of cement with low alkalinity disclosed in this invention, is controlled alkalinity from the raw material of cement, passes through
To the restriction of alkalinity in raw material, and then guarantee the low alkalinity in clinker.
Detailed description of the invention
The present invention is realized by detailed description below:
A kind of cement with low alkalinity, raw material includes: limestone, sandstone, vessel slag, raw coal.Alkali content in limestone
Less than or equal to 0.06%, in described sandstone, alkali content is less than or equal to 1.7%, and in described vessel slag, alkali content is less than or equal to 0.3%, institute
State alkali content in raw coal and be less than or equal to 1.5%.
Introduce various raw-material concrete election process in detail below:
1. limestone is selected:
The limestone of various form limestone and position, its my company each ore deposit is carried out sample detecting, and data are shown in Table 1:
As can be seen from Table 1, if contain earth in limestone, its alkali content is relatively high without earth sample；In ensureing limestone
CaO >=50%, MgO≤1.20% specially requires simultaneously can not be mixed with earth when exploiting.
2. sandstone is selected:
Position, ore deposit each to sandstone ore deposit carries out sample detecting, and testing result is shown in Table 2:
Table 2 sandstone alkali content
As can be seen from Table 2, high silicon alkali content all can reach less than 1.0, and the mining area of middle silicon can only be limited in 225 the 3rd exploitations
This mining area of district.
Ferriferous raw material
Vessel slag: alkali content is 0.30；Sulfate slag: alkali content is 0.90.
Raw coal
Table 3 raw coal alkali content
As can be seen from Table 3, anthracite: gold Zhushan County, victory former times bridge, Lian Yuan, the cold water east of a river etc. can reach below R2O≤1.5%；Bituminous coal:
Be stained with meaning, natural resources, lower Tengqiao, cold water well, bight, Zhaotong, wild horse stockaded village etc. and can reach below R2O≤1.0%, it is desirable to purchase of goods and materials with
Raise variety raw coal, and the most preferentially purchase.
Finally it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to the present invention,
Although being described in detail the present invention with reference to previous embodiment, for a person skilled in the art, it still may be used
So that the technical scheme described in foregoing embodiments to be modified, or wherein portion of techniques feature is carried out equivalent.
All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included in the present invention's
Within protection domain.
Claims (5)
1. a cement with low alkalinity, it is characterised in that: raw material includes: limestone, sandstone, vessel slag, raw coal.
A kind of cement with low alkalinity the most according to claim 1, it is characterised in that: alkali content in described limestone
Less than or equal to 0.06%.
A kind of cement with low alkalinity the most according to claim 1, it is characterised in that: in described sandstone, alkali content is little
In equal to 1.7%.
A kind of cement with low alkalinity the most according to claim 1, it is characterised in that: alkali content in described vessel slag
Less than or equal to 0.3%.
A kind of cement with low alkalinity the most according to claim 1, it is characterised in that: in described raw coal, alkali content is little
In equal to 1.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610238629.9A CN105884221A (en) | 2016-04-18 | 2016-04-18 | Cement with low alkali content |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610238629.9A CN105884221A (en) | 2016-04-18 | 2016-04-18 | Cement with low alkali content |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105884221A true CN105884221A (en) | 2016-08-24 |
Family
ID=56703930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610238629.9A Pending CN105884221A (en) | 2016-04-18 | 2016-04-18 | Cement with low alkali content |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105884221A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351445A (en) * | 2011-06-08 | 2012-02-15 | 广西鱼峰水泥股份有限公司 | Ultra low-alkali portland cement and production method thereof |
| CN102659326A (en) * | 2012-04-17 | 2012-09-12 | 新疆天山水泥股份有限公司 | Low-alkaline sulphur-resisting portland cement for road and production method thereof |
| KR20120116896A (en) * | 2012-09-19 | 2012-10-23 | (주)세와비전 | Composition of calcium sulfoaluminate type clinker, cement comprising the same and method of preparing the same |
| CN102942314A (en) * | 2012-11-30 | 2013-02-27 | 广西鱼峰水泥股份有限公司 | Oil well cement and production method thereof |
| CN102976644A (en) * | 2012-11-30 | 2013-03-20 | 广西鱼峰水泥股份有限公司 | Moderate-heat silicate cement clinker and production method thereof |
-
2016
- 2016-04-18 CN CN201610238629.9A patent/CN105884221A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351445A (en) * | 2011-06-08 | 2012-02-15 | 广西鱼峰水泥股份有限公司 | Ultra low-alkali portland cement and production method thereof |
| CN102659326A (en) * | 2012-04-17 | 2012-09-12 | 新疆天山水泥股份有限公司 | Low-alkaline sulphur-resisting portland cement for road and production method thereof |
| KR20120116896A (en) * | 2012-09-19 | 2012-10-23 | (주)세와비전 | Composition of calcium sulfoaluminate type clinker, cement comprising the same and method of preparing the same |
| CN102942314A (en) * | 2012-11-30 | 2013-02-27 | 广西鱼峰水泥股份有限公司 | Oil well cement and production method thereof |
| CN102976644A (en) * | 2012-11-30 | 2013-03-20 | 广西鱼峰水泥股份有限公司 | Moderate-heat silicate cement clinker and production method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105330180B (en) | Early-strength low-heat portland cement and preparation method thereof | |
| CN104310919B (en) | A kind of Wear-resisting terrace material and preparation method thereof | |
| CN105272094B (en) | A kind of modified hydraulic lime sill and preparation method thereof | |
| CN104072002B (en) | A kind of compound clay of alternative natural sand and the ready mixed concrete being raw material with it | |
| CN107522455A (en) | A kind of preparation method of the tailing-filled material in mine | |
| CN106316295A (en) | Sand based permeable dry mix and mixture thereof | |
| Liu et al. | Study on the sprayed concrete with iron tailings | |
| Yıldızel et al. | Cost Optimization of Mortars Containing Different Pigments and Their Freeze‐Thaw Resistance Properties | |
| CN105884221A (en) | Cement with low alkali content | |
| Arinat et al. | Byzantine glass mosaics excavated from the “cross church”, Jerash, Jordan: An archaeometrical investigation | |
| CN106278066A (en) | Fast hard impervious gap filler | |
| Weng et al. | Analysis of construction materials of Xiongnu Tongwan city, built 1600 years ago | |
| CN109153610A (en) | Calcium chloride-added blast furnace slag-based cement-free bonding material | |
| Zheng et al. | Effect of calcined hard kaolin dosage on the strength development of CPB of fine tailings with sulphide | |
| CN106242410A (en) | A kind of high intensity cement for construction in sea brick | |
| CN105948546A (en) | Environment-friendly masonry cement | |
| Lianjun et al. | Study on Modification of Alkali‐Free Liquid Accelerator of Mine‐Used Wet‐Mix Shotcrete | |
| CN103319119A (en) | Novel dry-mixed ground mortar | |
| Barcelo et al. | The Five Ws and One H of Portland Limestone Cement. | |
| CN106892580A (en) | The clinker configured using mine, trade waste | |
| Dumitru et al. | Constraints in Using Manufactured Sands in Concrete Pavements in Australia | |
| CN105837077A (en) | High-performance green and environment-friendly composite mineral admixture applicable to cement and concrete | |
| CN109704712A (en) | A method of filling phosphorous gypsum process phosphorus, which is reduced, using Modified Quartz Sand pollutes | |
| CN110218010B (en) | Preparation method of filling cementing material | |
| CN107555909A (en) | A kind of modified double-decker iron tailings sand base water-permeable brick |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160824 |
|
| RJ01 | Rejection of invention patent application after publication |