CN110128038A - Tricalcium silicate-dicalcium silicate-calcium sulphoaluminate cement and its low temperature preparation method - Google Patents
Tricalcium silicate-dicalcium silicate-calcium sulphoaluminate cement and its low temperature preparation method Download PDFInfo
- Publication number
- CN110128038A CN110128038A CN201910400391.9A CN201910400391A CN110128038A CN 110128038 A CN110128038 A CN 110128038A CN 201910400391 A CN201910400391 A CN 201910400391A CN 110128038 A CN110128038 A CN 110128038A
- Authority
- CN
- China
- Prior art keywords
- raw material
- silicate
- calcium sulphoaluminate
- low temperature
- dicalcium
- 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
- C04B7/32—Aluminous cements
- C04B7/323—Calcium aluminosulfate cements, e.g. cements hydrating into ettringite
-
- 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
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
-
- 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
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/44—Burning; Melting
-
- 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)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of tricalcium silicate-dicalcium silicate-calcium sulphoaluminate cement and its low temperature preparing methods, the quality proportioning of the cement clinker mineral is as follows: tricalcium silicate: 5-45%, dicalcium silicate: 20-50%, calcium sulphoaluminate: 18-40%, Copper component: 0-10%.Raw material is activated by the present invention, reduces the calcination temperature of tricalcium silicate, can prepare tricalcium silicate-dicalcium silicate-sulphoaluminate cement clinker by way of one-step calcination at 1150-1290 DEG C, 150 DEG C or so lower than conventional calcination temperatures.Present invention process is simple, low-carbon, environmentally protective.
Description
Technical field
The invention belongs to field of material technology, and in particular to a kind of tricalcium silicate-dicalcium silicate-calcium sulphoaluminate cement and its
Low temperature preparation method.
Background technique
Sulphate aluminium cement has many advantages, such as high early strength and high later strength, and there are also impervious, freeze proof, anti-corrosion.
Dicalcium silicate (C2) and calcium sulphoaluminate (C S4A3It is $) essential mineral of sulphate aluminium cement, C4A3$ hydration activity is very high, early stage energy
Form a large amount of entringite (AFt), C-S-H and aluminium hydroxide (AH3) gel, the early strength of cement is greatly improved, is forged
Temperature is burnt generally at 1250-1300 DEG C；C2S hydration reaction is slow, and early strength is low, and predominantly cement provides later strength.
Tricalcium silicate (C3S) be Portland clinker essential mineral, by SiO2React generation at high temperature with CaO,
Its calcination temperature is generally at 1450-1500 DEG C.C3S mineral aquation is very fast, and early strength is high, and later strength enhancement rate is big, contains
Amount is to determine the principal element of portland cement intensity.Studies have shown that adding C in dicalcium silicate sulphate aluminium cement3S mine
Object can effectively improve each age strength of cement.But due to C3S calcination temperature is much higher than C4A3$, at this temperature, C4A3$ is
Through decomposing, therefore the method by once calcining prepares tricalcium silicate-dicalcium silicate-sulphate aluminium cement and is difficult.
Shen Xiaodong et al. takes the mode of secondary clacining to prepare tricalcium silicate-sulphoaluminate cement clinker at present, but due to
Calcination temperature is low, and the tricalcium silicate in clinker is not formed completely, and content is lower；Hu Yueyang et al. has found that steel slag, copper ashes can drop
Low tricalcium silicate firing temperature, promotion tricalcium silicate and calcium sulphoaluminate coexist；Ma Suhua et al. has found metal oxide such as
MnO2, ZnO etc. can expand the coexisting temperature of tricalcium silicate and calcium sulphoaluminate, but additional addition mineralizer can improve manufacture of cement
Cost.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of tricalcium silicate-silicic acid two
Calcium-calcium sulphoaluminate cement and its low temperature preparation method, to overcome the shortcomings of that above-mentioned complex process in the prior art, energy consumption are high,
And it can be realized being effectively treated for waste residue.
Technical solution: to achieve the above object, the technical solution adopted by the present invention are as follows:
The present invention provides a kind of tricalcium silicate-dicalcium silicate-sulphate aluminium cement, clinker includes following quality
The mineral composition of proportion: tricalcium silicate: 5-45%, dicalcium silicate: 20-50%, calcium sulphoaluminate: 18-40%, Copper component: 0-
10%, specific Copper component includes C4AF、CF、C2F、C4(A,F)3$。
A kind of tricalcium silicate-dicalcium silicate-calcium sulphoaluminate cement and its low temperature preparation method, include the following steps:
To achieve the above object, the technical solution adopted by the present invention are as follows:
(1) siliceous raw material, aluminum raw material, calcareous raw material and industrial gypsum are broken into 10mm particle below respectively, so
Ball milling is carried out, raw material are obtained than ingredient by the quality of 29.5-66.7:10.1-21.51:8.6-56.14:5.4-13.7 afterwards；
(2) raw material for obtaining step (1) calcine piece in 3-5MPa lower sheeting at 1150-1290 DEG C, keep the temperature 1-3h
Afterwards, chilling is taken out；
(3) clinker that will be obtained after chilling in step (2) mixes with dihydrate gypsum, 0-20% mixing material, is levigate, obtaining
Tricalcium silicate-dicalcium silicate-sulphate aluminium cement.
In the step (1) siliceous raw material be gangue, flyash, steel slag, aluminum raw material be bauxite, aluminium slag, it is calcareous
Raw material is lime stone, carbide slag, and industrial gypsum is desulfurized gypsum, and mixing material is miberal powder or flyash.
The utility model has the advantages that tricalcium silicate-dicalcium silicate-calcium sulphoaluminate cement provided by the invention and its low temperature preparation method,
Compared with prior art, have the advantage that the present invention using industrial residue as primary raw material, on the one hand can save raw material at
This, on the other hand more effectively can handle and utilize waste residue.The present invention reduces silicic acid three by the way that raw material to be activated
The calcination temperature of calcium can prepare tricalcium silicate-dicalcium silicate-aluminium sulfate at 1150-1290 DEG C by way of one-step calcination
Clinker is 150 DEG C or so lower than conventional calcination temperatures.Present invention process is simple, low-carbon, environmentally protective.
Detailed description of the invention
Fig. 1 is the XRD diagram of 1 products therefrom of embodiment.
Specific embodiment
Of the invention a kind of tricalcium silicate-dicalcium silicate-calcium sulphoaluminate cement and its low temperature preparation method, including walk as follows
It is rapid:
(1) siliceous raw material, aluminum raw material, calcareous raw material and industrial gypsum are broken into 10mm particle below respectively, so
Ball milling is carried out, raw material are obtained than ingredient by the quality of 29.5-66.7:10.1-21.51:8.6-56.14:5.4-13.7 afterwards；
Wherein, raw material includes siliceous raw material, aluminum raw material, calcareous raw material, industrial gypsum；Siliceous raw material is gangue, powder
One of coal ash, steel slag, aluminum raw material are one of bauxite, aluminium slag, and calcareous raw material is lime stone, one in carbide slag
Kind, industrial gypsum is desulfurized gypsum, and mixing material is miberal powder or flyash.
(2) raw material for obtaining step (1) calcine it in 3-5MPa lower sheeting at 1150-1290 DEG C, keep the temperature 1-3h
Afterwards, chilling is taken out；
(3) it by the clinker after chilling in step (2), is mixed with dihydrate gypsum, 0-20% mixing material, is levigate, obtaining silicic acid
Dicalcium sulphate aluminium cement.
The main chemical compositions of raw material used in the present invention are as shown in table 1.
1 raw materials used main chemical compositions (wt%) of table
Below according to specific embodiment, the present invention will be further described.
Embodiment 1
Raw material proportioning is as shown in table 2:
2 embodiment of table, 1 raw material proportioning
Specific step is as follows:
(1) ball milling: 2 raw material of table ingredient in mass ratio carries out ball milling (ratio of grinding media to material 4:1, revolving speed 150r/min), grinding
It samples (period smashs to pieces every 3h taking-up and sinks to the bottom material) afterwards for 24 hours, crosses 45 μm of square hole screens, tail over less than 10%, obtain raw material；
(2) tabletting: by raw material in 3MPa lower sheeting；
(3) it calcines: being placed in high-temperature electric resistance furnace, 1290 DEG C of calcinings keep the temperature 1h, then take out chilling；
(4) material phase analysis: clinker is milled to the square hole screen that its particle can be all 80 μm by aperture, carries out X-ray
Diffraction analysis, as shown in Figure 1,1290 DEG C calcine, heat preservation 1h synthesize target cement minerals, essential mineral have C4A3 $, C2S,
C3S、C2F、CF。
Embodiment 2
Raw material proportioning is as shown in table 3:
3 embodiment of table, 2 raw material proportioning
Specific step is as follows:
(1) ball milling: 3 raw material of table ingredient in mass ratio carries out ball milling (ratio of grinding media to material 5:1, revolving speed 250r/min), grinding
Sampling (period smashs to pieces every 3h taking-up and sinks to the bottom material), obtains raw material after 48h；
(2) tabletting: by raw material in 3MPa lower sheeting；
(3) it calcines: being placed in high-temperature electric resistance furnace, 1250 DEG C of calcinings keep the temperature 2h, then take out chilling；
(4) strength test: clinker and dihydrate gypsum are mixed, levigate cross the square hole screen that aperture is 80 μm, sieve to its particle
It is remaining that cement is made less than 10%, according to GB/T17671-1999 " cement strength testing method " to cement mortar test piece intensity into
Row test carries out 3d, the anti-folding of 28d, compression strength performance test, such as table 4.
The test of 4 embodiment of table, 2 strength character
Embodiment 3
Raw material proportioning is as shown in table 5:
5 embodiment of table, 3 raw material proportioning
Specific step is as follows:
(1) ball milling: 5 raw material of table ingredient in mass ratio carries out ball milling (ratio of grinding media to material 6:1, revolving speed 350r/min), grinding
Sampling (period smashs to pieces every 3h taking-up and sinks to the bottom material), obtains raw material after 60h；
(2) tabletting: by raw material in 4MPa lower sheeting；
(3) it calcines: being placed in high-temperature electric resistance furnace, 1200 DEG C of calcinings keep the temperature 2h, then take out chilling；
(4) strength test: clinker and dihydrate gypsum, miberal powder (10%) are mixed, levigate to cross aperture to its particle be 80 μm
Square hole screen, tail over less than 10%, cement be made, according to GB/T17671-1999 " cement strength testing method " to cement mortar
Test piece intensity carries out test and carries out 3d, the anti-folding of 28d, compression strength performance test, such as table 6.
The test of 6 embodiment of table, 3 strength character
Embodiment 4
Raw material proportioning is as shown in table 7:
7 embodiment of table, 4 raw material proportioning
Specific step is as follows:
(1) ball milling: 7 raw material of table ingredient in mass ratio carries out ball milling (ratio of grinding media to material 6:1, revolving speed 350r/min), grinding
Sampling (period smashs to pieces every 3h taking-up and sinks to the bottom material), obtains raw material after 72h；
(2) tabletting: by raw material in 5MPa lower sheeting；
(3) it calcines: being placed in high-temperature electric resistance furnace, 1150 DEG C of calcinings keep the temperature 3h, then take out chilling；
(4) strength test: clinker and dihydrate gypsum, flyash (20%) are mixed, levigate to cross aperture to its particle be 80 μ
The square hole screen of m tails over less than 10%, cement is made, according to GB/T17671-1999 " cement strength testing method " to cement gel
Sand test piece intensity carries out test and carries out 3d, the anti-folding of 28d, compression strength performance test, such as table 8.
8 embodiment semi-finals degree performance test of table
To sum up, raw material is activated by the present invention, reduces the calcination temperature of tricalcium silicate, can be at 1150-1290 DEG C
Tricalcium silicate-dicalcium silicate-sulphoaluminate cement clinker is prepared by way of one-step calcination, it is lower than conventional calcination temperatures
150 DEG C or so.Present invention process is simple, low-carbon, environmentally protective.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of low temperature preparation method of tricalcium silicate-dicalcium silicate-calcium sulphoaluminate cement, it is characterised in that: including walking as follows
It is rapid:
(1) siliceous raw material, aluminum raw material, calcareous raw material and industrial gypsum are broken into particle, then ingredient in proportion respectively, carried out
Ball milling obtains raw material；
(2) raw material for obtaining step (1) calcine gained tabletting in 3-5MPa lower sheeting at 1150-1290 DEG C, keep the temperature 1-
After 3h, chilling is taken out；
(3) clinker that will be obtained after chilling in step (2) mixes with dihydrate gypsum, mixing material, is levigate, obtaining tricalcium silicate-silicon
Sour dicalcium-sulphate aluminium cement.
2. the low temperature preparation method of tricalcium silicate-dicalcium silicate-calcium sulphoaluminate cement according to claim 1, feature
Be: in step (1), the siliceous raw material, aluminum raw material, calcareous raw material and industrial gypsum are according to 29.5-66.7:10.1-
The quality of 21.51:8.6-56.14:5.4-13.7 compares ingredient.
3. the low temperature preparation method of tricalcium silicate-dicalcium silicate-calcium sulphoaluminate cement according to claim 1, feature
Be: in step (1), the ratio of grinding media to material of the ball milling is 4-6:1, is sampled after revolving speed 150-350r/min, 24-72h, during which every
It is smashed to pieces every 3h taking-up and sinks to the bottom material, obtain raw material.
4. the low temperature preparation method of tricalcium silicate-dicalcium silicate-calcium sulphoaluminate cement according to claim 1, feature
Be: in step (1), the siliceous raw material, aluminum raw material, calcareous raw material and industrial gypsum are broken into 10mm below respectively
Grain.
5. the low temperature preparation method of tricalcium silicate-dicalcium silicate-calcium sulphoaluminate cement according to claim 1, feature
Be: in step (1), the siliceous raw material is one of gangue, flyash, steel slag, and aluminum raw material is bauxite, aluminium slag
One of, calcareous raw material is one of lime stone, carbide slag, and industrial gypsum is desulfurized gypsum；It is described mixed in step (3)
Closing material is miberal powder or flyash.
6. the low temperature preparation method of tricalcium silicate-dicalcium silicate-calcium sulphoaluminate cement according to claim 1, feature
Be: in step (3), the additive amount of the mixing material is 0-20% mass percentage.
7. tricalcium silicate-dicalcium silicate-calcium sulphoaluminate of low temperature preparation method preparation according to any one of claims 1 to 6
Cement, it is characterised in that: the clinker of the cement includes the mineral of following quality proportioning: tricalcium silicate: 5-45%, dicalcium silicate:
20-50%, calcium sulphoaluminate: 18-40%, Copper component: 0-10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910400391.9A CN110128038A (en) | 2019-05-15 | 2019-05-15 | Tricalcium silicate-dicalcium silicate-calcium sulphoaluminate cement and its low temperature preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910400391.9A CN110128038A (en) | 2019-05-15 | 2019-05-15 | Tricalcium silicate-dicalcium silicate-calcium sulphoaluminate cement and its low temperature preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110128038A true CN110128038A (en) | 2019-08-16 |
Family
ID=67574024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910400391.9A Pending CN110128038A (en) | 2019-05-15 | 2019-05-15 | Tricalcium silicate-dicalcium silicate-calcium sulphoaluminate cement and its low temperature preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110128038A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112279532A (en) * | 2020-10-16 | 2021-01-29 | 北京建筑材料科学研究总院有限公司 | Mineral admixture and preparation method thereof |
| CN112694271A (en) * | 2021-01-07 | 2021-04-23 | 内蒙古工业大学 | Coal gangue based rapid hardening cementing material and preparation method thereof |
| CN112723767A (en) * | 2021-02-03 | 2021-04-30 | 济南大学 | Q-phase-containing belite sulphoaluminate cement efficiently utilizing gold tailings and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU676577A1 (en) * | 1978-03-16 | 1979-07-30 | Всесоюзный Государственный Научно-Исследовательский Институт Цементной Промышленности | Self-stressed cement |
| CN106220008A (en) * | 2016-08-01 | 2016-12-14 | 郑州市王楼水泥工业有限公司 | A kind of preparation method and applications method of low-carbon cement clinker |
| CN106277871A (en) * | 2016-08-01 | 2017-01-04 | 郑州市王楼水泥工业有限公司 | A kind of dry-process rotory kiln produces the production technology of high-sulfur calcium silicates low-carbon (LC) cement |
| CN107601924A (en) * | 2017-09-25 | 2018-01-19 | 中国葛洲坝集团水泥有限公司 | A kind of modified portland cement clinker and preparation method thereof |
| CN108101399A (en) * | 2017-12-28 | 2018-06-01 | 济南大学 | A kind of method that split-phase combination prepares calcium sulphoaluminate-alite-belite-iron phase system clinker |
| CN108793785A (en) * | 2018-07-24 | 2018-11-13 | 盐城工学院 | A kind of low temperature preparation method of sulphur silicate-belite sulphoaluminate cement |
-
2019
- 2019-05-15 CN CN201910400391.9A patent/CN110128038A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU676577A1 (en) * | 1978-03-16 | 1979-07-30 | Всесоюзный Государственный Научно-Исследовательский Институт Цементной Промышленности | Self-stressed cement |
| CN106220008A (en) * | 2016-08-01 | 2016-12-14 | 郑州市王楼水泥工业有限公司 | A kind of preparation method and applications method of low-carbon cement clinker |
| CN106277871A (en) * | 2016-08-01 | 2017-01-04 | 郑州市王楼水泥工业有限公司 | A kind of dry-process rotory kiln produces the production technology of high-sulfur calcium silicates low-carbon (LC) cement |
| CN107601924A (en) * | 2017-09-25 | 2018-01-19 | 中国葛洲坝集团水泥有限公司 | A kind of modified portland cement clinker and preparation method thereof |
| CN108101399A (en) * | 2017-12-28 | 2018-06-01 | 济南大学 | A kind of method that split-phase combination prepares calcium sulphoaluminate-alite-belite-iron phase system clinker |
| CN108793785A (en) * | 2018-07-24 | 2018-11-13 | 盐城工学院 | A kind of low temperature preparation method of sulphur silicate-belite sulphoaluminate cement |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112279532A (en) * | 2020-10-16 | 2021-01-29 | 北京建筑材料科学研究总院有限公司 | Mineral admixture and preparation method thereof |
| CN112279532B (en) * | 2020-10-16 | 2022-01-28 | 北京建筑材料科学研究总院有限公司 | Mineral admixture and preparation method thereof |
| CN112694271A (en) * | 2021-01-07 | 2021-04-23 | 内蒙古工业大学 | Coal gangue based rapid hardening cementing material and preparation method thereof |
| CN112723767A (en) * | 2021-02-03 | 2021-04-30 | 济南大学 | Q-phase-containing belite sulphoaluminate cement efficiently utilizing gold tailings and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107021654B (en) | A kind of sulphur calcium silicates sulphate aluminium cement and preparation method thereof | |
| Abdel-Gawwad et al. | Sustainable disposal of cement kiln dust in the production of cementitious materials | |
| CN107721214A (en) | A kind of high ferrous aluminate belite sulphoaluminate cement clinker and preparation method thereof | |
| CN110078393B (en) | Method for preparing calcium sulfosilicate-sulphoaluminate cement at low temperature | |
| CN110194604A (en) | Tricalcium silicate-sulphur calcium silicates-sulphate aluminium cement and its low temperature preparation method | |
| CN101023043A (en) | High belite-containing sulphoaluminous clinker, method for the production and the use thereof for preparing hydraulic binders | |
| CN108298838B (en) | Portland cement clinker and preparation method and application thereof | |
| CN107056102A (en) | A kind of system and method for utilization desulfurated plaster and aluminium ash production sulphate aluminium cement coproduction sulphur | |
| CN110128038A (en) | Tricalcium silicate-dicalcium silicate-calcium sulphoaluminate cement and its low temperature preparation method | |
| CN104609434A (en) | Preparation method and application method of calcium sulphosilicate mineral | |
| CN110078394A (en) | Low temperature preparation sulphur calcium silicates-belite sulphoaluminate cement clinker method | |
| CN106116189B (en) | A kind of no first-hand datum lithium slag composite gelled material | |
| CN108793785B (en) | Low-temperature preparation method of sulfosilicate-belite-sulphoaluminate cement | |
| CN105502973B (en) | A kind of poor calcium Silicon-rich eco-cement and application thereof | |
| CN105502974B (en) | A kind of processing of nickel minerals metallurgical slag and Application way | |
| CN105130220B (en) | With discarded concrete and the method for sludge eco-cement and active sand | |
| CN109133684A (en) | A kind of high iron belite aluminate cement clinker and preparation method thereof | |
| CN105712642B (en) | A kind of cement concrete efficient expansion clinker, its preparation method and its application | |
| CN108675657A (en) | A method of preparing silicate-aluminium sulfate compound system clinker using waste residue | |
| CN109970372B (en) | Method for preparing belite sulphoaluminate cement at low temperature by mechanochemical method | |
| CN112624640A (en) | Full-solid waste sulphoaluminate cement clinker for prefabricated parts and preparation method thereof | |
| Wang et al. | Study on the preparation of high performance concrete using steel slag and iron ore tail-ings | |
| Huang et al. | Effects of aphthitalite on the formation of clinker minerals and hydration properties | |
| Cheng et al. | Feasibility study on utilization of copper tailings as raw meal and addition for low carbon Portland cement production | |
| CN104761160A (en) | Modified slag powder and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190816 |
|
| RJ01 | Rejection of invention patent application after publication |