CN104556909B - A kind of be raw material with flyash fast solidifying anti-corrosion cement and preparation method thereof - Google Patents
A kind of be raw material with flyash fast solidifying anti-corrosion cement and preparation method thereof Download PDFInfo
- Publication number
- CN104556909B CN104556909B CN201510017523.1A CN201510017523A CN104556909B CN 104556909 B CN104556909 B CN 104556909B CN 201510017523 A CN201510017523 A CN 201510017523A CN 104556909 B CN104556909 B CN 104556909B
- Authority
- CN
- China
- Prior art keywords
- parts
- flyash
- raw material
- cement
- fast solidifying
- 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.)
- Active
Links
Classifications
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of fast solidifying anti-corrosion cement utilizing coal ash for manufacturing standby and preparation method thereof, this fast solidifying anti-corrosion cement is prepared by composition and method prepares: will by mass parts, 60～75 parts of flyash, slaked lime 25 ~ 40 parts, alkali-activator 0.5 ~ 1.5 part, 1 ~ 2 part of intergrinding of sulphate activation agent become 80 μm of batches tailed over less than 5%, add water 20 ~ 25 parts to stir and prepare into raw material ball, raw material ball is obtained steam-cured material in 10 ~ 16 hours 95 ~ 98 DEG C of hydrothermal treatment consists, after being calcined 15 ~ 90 minutes at 750 ~ 900 DEG C by steam-cured material, cools down to obtain synthesis material；Synthesis material 75 ~ 85 parts, Portland clinker 10 ~ 20 parts are tailed over less than 4% to 80 μm with 5 ~ 8 parts of Gypsum Fibrosum, adjustable solidification agent 0.2 ~ 1.0 part, 0.3 ~ 0.7 part of intergrinding of water reducer.This cement burning temperature and heat consumption is low, utilization of fly ash rate height, quick setting and rapid hardening, intensity sulfate aggressivity high, resistance to is good.
Description
Technical field
The invention belongs to building material technical field, especially relate to a kind of fast solidifying anti-corrosion cement and preparation method thereof being raw material with flyash.
Background technology
Cement is as the maximum artificial material of building, water conservancy and transportation building engineering consumption, its production process needs to consume large quantities of lime stone, clay and fuel and electric power, it is the material of a kind of high resource and high-energy source consumption and hot room gas discharging, seeks new raw material resources and alternative or can the preparation method of new cement as a supplement be the problem that material supplier author is devoted to solve always.Along with the area of Development control area and the continuous of field expand, the performance of cement is also proposed different new requirements by the architectural engineering being in special natural environment, and the demand of the cement with property increases day by day.On the other hand, adverse effect and effective disposal of environment are still a problem not yet thoroughly solved by all types of industries waste residue, including the flyash that thermal power generation corporations discharge.Although the big part of flyash that power plant's dry method is discharged in recent years is utilized, but a large amount of flyash of wet method discharge over the years, owing to its general granularity is thicker, phosphorus content is higher, its physical property and reactivity can not meet the requirement as cement mixture and concrete admixture, directly can not be applied in cement and concrete and other building material in large quantities, not yet can be used effectively and be stored up for a long time.Flyash store up not only land occupation, go back severe contamination surrounding, therefore its efficient resource utilization is a problem demanding prompt solution.It is that primary raw material prepares cement with storing up flyash, it is possible to saving the non-renewable resources such as limestone and clay, liberation soil is for industry and commerce exploitation and dwelling construction, and energy-conserving and environment-protective.But existing coal ash for manufacturing exists for the technology of cement, and flyash consumption is few, quality of fly ash is required height, as when producing Portland fly ash cement, flyash research on maximum utilized quantity is only 40%, and the loss on ignition of flyash and activity are had the harsh requirement of comparison, the problem that when doping quantity of fly ash is bigger, cement performance is poor.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, it is provided that a kind of be raw material with flyash fast solidifying anti-corrosion cement and preparation method thereof, this soon solidifying anti-corrosion cement can rapid solidification, decay resistance strong.
The present invention is by the following technical solutions:
A kind of be raw material with flyash fast solidifying anti-corrosion cement, including the synthesis material 75～85 parts of parts by weight, Portland clinker 10～20 parts, 5～8 parts of Gypsum Fibrosum, adjustable solidification agent 0.1～1.0 part and water reducer 0.3～0.7 part；The raw material of described synthesis material includes 60～75 parts of the flyash of parts by weight, slaked lime 25～40 parts, alkali-activator 0.5～1.5 part, sulphate activation agent 1～2 part and 20～25 parts of water.
As preferably, described alkali-activator is alkali metal hydroxide or alkali carbonate.
As preferably, described sulphate activation agent is Natrii Sulfas or Gypsum Fibrosum.
As preferably, described Gypsum Fibrosum is at least one in dihydrate gypsum, semi-hydrated gypsum, anhydrous gypsum.
As preferably, adjustable solidification agent is at least one in sodium citrate, polyphosphate sodium, sodium gluconate.
As preferably, water reducer is methylene dimethyl sodium dinaphthalenesulfonate polymer or sodium lignin sulfonate.
As preferably, water reducer is Powdered.
The fast solidifying anti-corrosion cement of the present invention, with flyash for raw material, reduces environmental pollution, and the quality requirements of flyash is not high, takes full advantage of scrap feed material, energy-conserving and environment-protective.
The preparation method of the above-mentioned fast solidifying anti-corrosion cement being raw material with flyash, comprises the following steps:
The first step: weigh each raw material, by flyash, slaked lime, alkali-activator, sulphate activation agent mixing, grinding tails over less than 5% to 80 μm, obtains batch；
Second step: described batch and water are mixed, stirs, make the pellet that diameter is 8～12mm；
3rd step: described pellet is obtained steam-cured material in 10～16 hours 95～98 DEG C of steam curings；
4th step: by described steam-cured material after 750～1000 DEG C of temperature lower calcinations 15～90 minutes, cools down to obtain synthesis material；
5th step: by described synthesis material 75～85 parts, Portland clinker 10～20 parts, 5～8 parts of Gypsum Fibrosum, adjustable solidification agent 0.2～1.0 part, water reducer 0.3～0.7 part mixing, grinding tails over less than 4% to 80 μm,.
As preferably, the cooling of the 4th step is for blowing air cooling or air-cooled.
The ultimate principle of the present invention is to make Calx form hydrated calcium silicate and drated calcium aluminate with active silica in flyash and active oxidation reactive aluminum by hydrothermal treatment consists, forms dicalcium silicate and seven aluminum ten dicalcium at a lower temperature after calcining.Wherein seven aluminum ten dicalcium have significantly high hydration activity, and dicalcium silicate, also due to formed at a lower temperature, exists a large amount of fault of construction, therefore also have significantly high hydration activity, it is easy to react with water and form the hydrated product with good cementing property.
Neutral and alkali exciting agent of the present invention can with the alumina silicate glass precursor reactant in flyash, destroy vitreous body network structure, reduce the extent of polymerization of vitreous body network structure, it is greatly improved the reaction rate of wherein silicon oxide and aluminium oxide and Calx and the formation rate of hydrated calcium silicate and drated calcium aluminate, and then the content of dicalcium silicate and seven aluminum ten dicalcium in raising Binder Materials, improve the gelling of Binder Materials；In the present invention, sulphate activation agent can promote the reaction formation hydrated calcium aluminate sulfate of aluminium oxide and Calx in hydrothermal reaction process, thus promoting the dissolution of aluminum in vitreous body.
In the present invention, Gypsum Fibrosum can react with seven aluminum ten dicalcium and water and form the calcium trisulphoaluminate hydrate that gelling is significantly high, improves strength of cement；Portland clinker can improve the Ca of early water slurry body2+Ion concentration, it is possible to improve the intensity of cement, especially early strength；Retarder can regulate the reaction rate of seven aluminum ten dicalcium so that setting time of Binder Materials of cement is unlikely to too short and affects construction, and water reducer can reduce the water requirement of cement, thus improving the intensity of Behavior of Hardened Cement Paste.
The invention have the benefit that
(1) cement of the present invention is big to the utilization rate of the high low-quality flyash of phosphorus content, it is possible to resolve the flyash problem to land occupation, contaminated environment.
(2) present invention passes through alkali-activator and sulphate activation agent compound only use, can effectively facilitate the reaction between each component in steam-cured process pellet, reduce steam-cured heat consumption, shorten the steam-cured time, improves productivity effect and equipment service efficiency；
(3) preparation method of cement of the present invention is simple, and calcining heat is low, and greenhouse gas emissions are few；
(4) characteristic that cement of the present invention has quick setting and rapid hardening, intensity sulfate aggressivity high, resistance to is good, be particularly well-suited to tunnel, under water, saline and alkaline area and coastal area engineering.
Accompanying drawing explanation
Fig. 1 is the production technological process of the present invention.
Detailed description of the invention
Technical solution of the present invention is described in detail by mode by the examples below, but protection scope of the present invention is not limited to described embodiment.In each embodiment cement normal consistency water requirement and press setting time GBT1346-2011 measure, the anti-folding of cement and comprcssive strength press GBT17671-1999 measure, resisting erosion of sulfate coefficient press GBT749-2008 mensuration, result is listed in subordinate list.
Embodiment 1
Batch by mass parts containing following component:
Flyash is weighed by above-mentioned mass ratio, slaked lime, sodium hydroxide, Natrii Sulfas intergrinding to fineness be 80 μm tail over be 4.2% batch, 3min is stirred after adding 20 parts of water, the pellet that diameter is 8～12mm is prepared into pan-pelletizer, pellet 90 DEG C of steam-cured 16h in steam box are obtained steam-cured material, after steam-cured material is used in 750 DEG C of calcining 90min, quenching obtains synthesis material, by synthesis material 75 parts, Portland clinker 20 parts and dihydrate gypsum 8 parts, sodium citrate 0.3 part, it is 3.1% that methylene 0.3 part of intergrinding of dimethyl sodium dinaphthalenesulfonate polymer tails over to 80 μm, prepare a kind of fast solidifying anti-corrosion cement.
Embodiment 2
Batch by mass parts containing following component:
Flyash is weighed by above-mentioned mass ratio, slaked lime, potassium hydroxide, dihydrate gypsum intergrinding to fineness be 80 μm tail over be 3.8% batch, 3min is stirred after adding 22 parts of water, pan-pelletizer is molded into the pellet that diameter is 8～12mm, pellet 95 DEG C of steam-cured 12h in steam box are obtained steam-cured material, after steam-cured material is used in 800 DEG C of calcining 60min, quenching obtains synthesis material, by synthesis material 80 parts, Portland clinker 15 parts and anhydrous gypsum 5 parts, polyphosphate sodium 1.0 parts, it is 2.8% that 0.3 part of intergrinding of sodium lignin sulfonate tails over to 80 μm, prepare a kind of fast solidifying anti-corrosion cement.
Embodiment 3
Batch by mass parts containing following component:
Flyash is weighed by above-mentioned mass ratio, slaked lime, sodium carbonate, Natrii Sulfas intergrinding to fineness be 80 μm tail over be 3.3% batch, 3min is stirred after adding 23 parts of water, pan-pelletizer is molded into the pellet that diameter is 8～12mm, pellet 95 DEG C of steam-cured 12h in steam box are obtained steam-cured material, after steam-cured material is used in 850 DEG C of calcining 30min, quenching obtains synthesis material, by synthesis material 80 parts, Portland clinker 15 parts and dihydrate gypsum 7 parts, sodium gluconate 0.5 part, it is 2.5% that methylene 0.5 part of intergrinding of dimethyl sodium dinaphthalenesulfonate polymer tails over to 80 μm, prepare a kind of fast solidifying anti-corrosion cement.
Embodiment 4
Batch by mass parts containing following component:
Flyash is weighed by above-mentioned mass ratio, slaked lime, sodium hydroxide, anhydrous gypsum intergrinding to fineness be 80 μm tail over be 4.1% batch, 3min is stirred after adding 25 parts of water, pan-pelletizer is molded into the pellet that diameter is 8～12mm, pellet 98 DEG C of steam-cured 10h in steam box are obtained steam-cured material, after steam-cured material is used in 900 DEG C of calcining 15min, quenching obtains synthesis material, by synthesis material 85 parts, Portland clinker 10 parts and semi-hydrated gypsum 6 parts, sodium gluconate 0.2 part, it is 3.0% that 0.5 part of intergrinding of sodium lignin sulfonate tails over to 80 μm, prepare a kind of fast solidifying anti-corrosion cement.
Embodiment 5
Batch by mass parts containing following component:
Flyash is weighed by above-mentioned mass ratio, slaked lime, sodium hydroxide, semi-hydrated gypsum intergrinding to fineness be 80 μm tail over be 2.9% batch, 3min is stirred after adding 23 parts of water, pan-pelletizer is molded into the pellet that diameter is 8～12mm, pellet 98 DEG C of steam-cured 10h in steam box are obtained steam-cured material, after steam-cured material is used in 800 DEG C of calcining 50min, quenching obtains synthesis material, by synthesis material 80 parts, Portland clinker 15 parts and dihydrate gypsum 4 parts, anhydrous gypsum 3 parts, polyphosphate sodium 0.7 part, it is 2.4% that methylene 0.7 part of intergrinding of dimethyl sodium dinaphthalenesulfonate polymer tails over to 80 μm, prepare a kind of fast solidifying anti-corrosion cement.
Embodiment 6
Batch by mass parts containing following component:
Flyash is weighed by above-mentioned mass ratio, slaked lime, sodium carbonate, Natrii Sulfas intergrinding to fineness be 80 μm tail over be 3.2% batch, 3min is stirred after adding 23 parts of water, pan-pelletizer is molded into the pellet that diameter is 8～12mm, pellet 90 DEG C of steam-cured 16h in steam box are obtained steam-cured material, after steam-cured material is used in 800 DEG C of calcining 60min, quenching obtains synthesis material, by synthesis material 75 parts, Portland clinker 20 parts and dihydrate gypsum 3.5, anhydrous gypsum 3.5 parts, sodium citrate 0.5 part, it is 2.2% that 0.7 part of intergrinding of sodium lignin sulfonate tails over to 80 μm, prepare a kind of fast solidifying anti-corrosion cement.
Measuring the cement performance of embodiment, result is in Table 1.
The each embodiment of watch 1 coagulates anti-corrosion cement performance measurement result soon
According to above example it can be seen that the fast solidifying anti-corrosion jelling time of the present invention is 40～65min, final setting time is 75～100min, illustrates that the present invention can rapid solidification.3 days rupture strength 3.7～4.9MPa, comprcssive strength 15.4～16.5MPa, 28 days rupture strength 6.3～8.1MPa, comprcssive strength 38.3～48.8MPa, illustrate that cement setting of the present invention is very fast, setting time can regulate with retarder, anti-folding and comprcssive strength high；Corrosion resistance index 1.05～1.12, has good corrosion resistance.
Claims (7)
1. the fast solidifying anti-corrosion cement that one kind is raw material with flyash, it is characterised in that include the synthesis material 75 ~ 85 parts of parts by weight, Portland clinker 10 ~ 20 parts, 5 ~ 8 parts of Gypsum Fibrosum, adjustable solidification agent 0.1 ~ 1.0 part and water reducer 0.3 ~ 0.7 part；The raw material of described synthesis material includes 60～75 parts of the flyash of parts by weight, slaked lime 25～40 parts, alkali-activator 0.5 ~ 1.5 part, sulphate activation agent 1 ~ 2 part and 20 ~ 25 parts of water；Adjustable solidification agent is at least one in sodium citrate, polyphosphate sodium, sodium gluconate；Wherein the preparation method of synthesis material comprises the following steps:
The first step: weigh each raw material, by flyash, slaked lime, alkali-activator, sulphate activation agent mixing, grinding tails over less than 5% to 80 μm, obtains batch；
Second step: described batch and water are mixed, stirs, make the pellet that diameter is 8 ~ 12mm；
3rd step: described pellet is obtained steam-cured material in 10～16 hours 95 ~ 98 DEG C of steam curings；
4th step: by described steam-cured material after 750 ~ 1000 DEG C of temperature lower calcinations 15 ~ 90 minutes, cools down to obtain synthesis material.
2. according to claim 1 a kind of be raw material with flyash fast solidifying anti-corrosion cement, it is characterised in that described alkali-activator is alkali metal hydroxide or alkali carbonate.
3. according to claim 1 a kind of be raw material with flyash fast solidifying anti-corrosion cement, it is characterised in that described sulphate activation agent is Natrii Sulfas or Gypsum Fibrosum.
4. according to claim 1 a kind of be raw material with flyash fast solidifying anti-corrosion cement, it is characterised in that described Gypsum Fibrosum is at least one in dihydrate gypsum, semi-hydrated gypsum, anhydrous gypsum.
5. according to claim 1 a kind of be raw material with flyash fast solidifying anti-corrosion cement, it is characterised in that water reducer is methylene dimethyl sodium dinaphthalenesulfonate polymer or sodium lignin sulfonate.
6. the preparation method of a kind of fast solidifying anti-corrosion cement being raw material with flyash described in claim 1, it is characterized in that, comprise the following steps: by described synthesis material 75 ~ 85 parts, Portland clinker 10 ~ 20 parts, 5 ~ 8 parts of Gypsum Fibrosum, adjustable solidification agent 0.2 ~ 1.0 part, water reducer 0.3 ~ 0.7 part mixing, grinding tails over less than 4% to 80 μm,.
7. the preparation method of a kind of fast solidifying anti-corrosion cement being raw material with flyash according to claim 6, it is characterised in that the cooling of the 4th step is cooling or air-cooled in atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510017523.1A CN104556909B (en) | 2015-01-13 | 2015-01-13 | A kind of be raw material with flyash fast solidifying anti-corrosion cement and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510017523.1A CN104556909B (en) | 2015-01-13 | 2015-01-13 | A kind of be raw material with flyash fast solidifying anti-corrosion cement and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104556909A CN104556909A (en) | 2015-04-29 |
| CN104556909B true CN104556909B (en) | 2016-07-27 |
Family
ID=53074098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510017523.1A Active CN104556909B (en) | 2015-01-13 | 2015-01-13 | A kind of be raw material with flyash fast solidifying anti-corrosion cement and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104556909B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104830009B (en) * | 2015-05-19 | 2017-09-26 | 河北工程大学 | A kind of graft-modification method of light flyash |
| CN105384406B (en) * | 2015-12-08 | 2017-10-24 | 嘉华特种水泥股份有限公司 | One kind exempts from pressure and steams C80 concrete-pile cement |
| CN107117918A (en) * | 2016-02-25 | 2017-09-01 | 张彬 | A kind of quick setting and rapid hardening ungauged regions disturbance rejection self-compacting concrete and preparation method thereof |
| CN106630700B (en) * | 2016-09-30 | 2018-10-02 | 河海大学 | It is a kind of using flyash and cullet as inorganic coagulation material of raw material and preparation method thereof |
| CN107721213B (en) * | 2017-11-14 | 2020-03-13 | 天津冀东水泥有限公司 | Method for processing high-performance cement by using fly ash |
| CN108678801B (en) * | 2018-05-25 | 2020-04-14 | 中国矿业大学 | Blocking type slurry material for preventing and treating coal spontaneous combustion fly ash alkali metal chelation hardening |
| CN112960921B (en) * | 2021-01-27 | 2023-03-17 | 广东能源集团科学技术研究院有限公司 | Saline-alkali-resistant cementing material and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5714003A (en) * | 1997-02-12 | 1998-02-03 | Mineral Resource Technologies, Llc | Blended hydraulic cement |
| CN1990413A (en) * | 2005-12-27 | 2007-07-04 | 尹小林 | Synthesis-reactivation technique for preparing inorganic coagulation material |
| CN101337777A (en) * | 2008-08-14 | 2009-01-07 | 宋云星 | Novel low carbon complex cement |
| CN102092973A (en) * | 2010-12-17 | 2011-06-15 | 南京工业大学 | Flyash cement and preparation method thereof |
| CN103803821A (en) * | 2013-12-16 | 2014-05-21 | 张家港市双林制墨涂装有限公司 | Fly ash cement and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11217253A (en) * | 1998-01-28 | 1999-08-10 | Mitsubishi Materials Corp | Ultrarapid hardening cement composition |
-
2015
- 2015-01-13 CN CN201510017523.1A patent/CN104556909B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5714003A (en) * | 1997-02-12 | 1998-02-03 | Mineral Resource Technologies, Llc | Blended hydraulic cement |
| CN1990413A (en) * | 2005-12-27 | 2007-07-04 | 尹小林 | Synthesis-reactivation technique for preparing inorganic coagulation material |
| CN101337777A (en) * | 2008-08-14 | 2009-01-07 | 宋云星 | Novel low carbon complex cement |
| CN102092973A (en) * | 2010-12-17 | 2011-06-15 | 南京工业大学 | Flyash cement and preparation method thereof |
| CN103803821A (en) * | 2013-12-16 | 2014-05-21 | 张家港市双林制墨涂装有限公司 | Fly ash cement and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104556909A (en) | 2015-04-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104556909B (en) | A kind of be raw material with flyash fast solidifying anti-corrosion cement and preparation method thereof | |
| CN104591563B (en) | A kind of Binder Materials with flyash as raw material and preparation method thereof | |
| CN105985039B (en) | A kind of inorganic coagulation material and preparation method thereof | |
| CN102643070B (en) | Ceramsite heat-preservation building block using non-calcined desulfurized gypsum as main cementing material and preparation method thereof | |
| WO2004058662A1 (en) | A two-component wet cement, process and application thereof | |
| CN109485278B (en) | Cementing material using coal gangue as raw material and preparation method thereof | |
| CN101386494A (en) | Composite gelate material and preparation method thereof | |
| CN108821671B (en) | Full-industrial solid waste high-strength ready-to-use foamed concrete material and preparation method thereof | |
| CN104496246A (en) | Cement concrete building solid phase filler surfactant and manufacturing and use methods thereof | |
| CN105272006A (en) | Red mud autoclaved aerated concrete building block and preparation method of red mud autoclaved aerated concrete building block | |
| CN101172801A (en) | High addition fly ash cement and method for producing the same | |
| CN102701694B (en) | Non-calcined desulfurization gypsum hydraulic compound gel system and quick steam-curing process thereof | |
| CN106630700B (en) | It is a kind of using flyash and cullet as inorganic coagulation material of raw material and preparation method thereof | |
| CN103241966A (en) | Clinker free regenerated slag micro-powder compound cement | |
| CN107056115A (en) | A kind of rush for ardealite based cementitious material coagulates type early strength agent and preparation method thereof | |
| CN102199010A (en) | Hydraulic composite cementing system mainly containing non-calcined desulphurization gypsum | |
| CN105985038B (en) | A kind of water-fast and sulfate attack inorganic coagulation material and preparation method thereof | |
| CN104129933B (en) | A kind of nuclear power cement utilizing copper scrap slag obtained and preparation method thereof | |
| CN101549986B (en) | Fly ash-desulfuration gypsum- concrete self-expandable anti-crack dry powder mortar and method of preparing the same | |
| CN114988791A (en) | Flue grouting material doped with sulfur-rich lithium slag and preparation method and application thereof | |
| CN103214226A (en) | Recycled concrete commercial mortar | |
| CN111848093A (en) | Over-sulfur phosphogypsum phosphorus slag cement concrete product and preparation method thereof | |
| CN103466978A (en) | Preparation method of phosphogypsum cementing material | |
| CN104030585A (en) | Method for preparing cement clinker by utilizing sludge | |
| CN101215110B (en) | Integral utilization treatment method for aerating concrete waste material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210805 Address after: 751999 two kilometers to the south of Yanxing highway and two kilometers to the west of Tongtu Road, Liujiagou Bay, Dahe Township, Hongsibao District, Wuzhong City, Ningxia Hui Autonomous Region Patentee after: Wuzhong Saima new building materials Co.,Ltd. Address before: 211100 No. 8 West Buddha Road, Jiangning Development Zone, Jiangsu, Nanjing, China Patentee before: HOHAI University |
|
| TR01 | Transfer of patent right |