CN102515672A - Mortar used for building firewall in petroleum industry and its construction process - Google Patents
Mortar used for building firewall in petroleum industry and its construction process Download PDFInfo
- Publication number
- CN102515672A CN102515672A CN2011104071981A CN201110407198A CN102515672A CN 102515672 A CN102515672 A CN 102515672A CN 2011104071981 A CN2011104071981 A CN 2011104071981A CN 201110407198 A CN201110407198 A CN 201110407198A CN 102515672 A CN102515672 A CN 102515672A
- Authority
- CN
- China
- Prior art keywords
- mortar
- build
- stones
- alumina cement
- petroleum industry
- 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
Landscapes
- Ceramic Products (AREA)
Abstract
The invention relates to a mortar used for building a firewall in petroleum industry, which comprises the following ingredient by mass percentage 15-25% of alumina cement, 2-5% of powdery fire clay, 15-25% of bauxite particle, 50-60 parts of dry sand and the balance of water. The mortar of the invention is capable of effectively raising the intensity of the mortar at early stage, increasing the bonding performance of the mortar and firebricks, ensuring the intensity of the mortar after high temperature calcining, and enhancing the corrosivity resistance of sulfate; and invention has the advantages that the preparation process and the construction process are convenient to operate, the construction period can not be prolonged, no other side-effect and hidden trouble can be generated, and is suitable for projects with short construction period and immediate usage, thereby the construction risk can be effectively reduced and the hidden trouble can be eliminated, compared with a traditional process, the cost of the invention is lower.
Description
Technical field
The present invention relates to a kind of mortar and construction technology thereof that refractory brick is built by laying bricks or stones that be used for, specifically be meant a kind of mortar and construction technology thereof that is used to build by laying bricks or stones the petroleum industry fireproof brickwork.
Background technology
The powder that refractory mortar is to use bauxitic clay grog and caking agent to make, as the packing material in slit between the refractory brick, refractory cements is claimed luminite cement again, it is to be the hydraulic material of essential mineral with the low alkalinity aluminate, is amorphous refractory.Bauxitic clay is claimed alumina or high-al clay again, and staple is an aluminium sesquioxide; Because of iron content is brown or light red, density 3.9～4q/cm3, hardness 1～3; Opaque, matter is crisp, water insoluble, be mainly used in system aluminium or make refractory materials.Refractory brick is a kind of typing refractory materials, is used to build by laying bricks or stones fireproof brickwork or furnace, and aluminium sesquioxide content reaches more than 75%.
In the oil-gas mining process; After the formation testing of formation testing team finishes; Need carry out the open flow operation for detecting underground gas pressure, the Sweet natural gas of underground collection is emitted through pipeline and burnt, do not burnt with house, plant around guaranteeing thereby require building unit to build fireproof brickwork.Fireproof brickwork requires to have functions such as corrosion firm, that can bear gas spraying injection pressure, high temperature resistant calcining, anti-underground vitriol liquid.
Petroleum industry designing unit fireproof brickwork common design is at present: body of wall counter-fire face is a refractory brick, uses refractory mortar to build by laying bricks or stones; For the fiery face of the back of the body of controlling cost is a standard square, use ordinary mortar to build by laying bricks or stones; Three face wall bodies, one side is the U font for relief line inserts, and highly is generally 2～3 meters, and cross-sectional width is 0.5～1.5 meter not to be waited; Require it to possess fire performance, its construction period was generally 7 days, and building finishes promptly is used for the open flow operation immediately.
The general refractory mortar that adopts is directly built refractory brick by laying bricks or stones in the brickwork industry, and because of the refractory brick uniform specification, surfacing requires the refractory mortar gray seam thickness in 3mm.But fireproof brickwork adopts refractory brick and standard square to build by laying bricks or stones jointly in the preliminary work for spudding; And two kinds of brick specifications are different; Must adjust with gray seam thickness during fissure of displacement overlap joint, so the fireproof brickwork gray seam thickness is commonly 8～1.1mm, the thickness requirement mortar of mortar joint must possess certain ultimate compression strength.
Refractory mortar is a packing material, and non-gelling material is built refractory brick by laying bricks or stones after high-temperature calcination because of its chemical ingredients is identical with refractory brick, can effectively sinter an integral body into, has very high intensity after sinter-hardened; But before open flow, refractory mortar does not almost have intensity, and can not be effectively bonding with refractory brick, and there is very big potential safety hazard in accidents such as in building process, collapsing, topple easily.
Summary of the invention
Technical problem to be solved by this invention provides a kind of mortar and construction technology thereof that is used to build by laying bricks or stones the petroleum industry fireproof brickwork; This refractory mortar has higher early strength; Can bear Sweet natural gas incinerating high temperature, have very high adhesiveproperties and intensity after the calcining, solve the safety-problems in the present construction process; This refractory mortar possesses certain sulfate-resistant corrosion performance simultaneously, and cost more directly uses refractory mortar cheaper.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
A kind of mortar that is used to build by laying bricks or stones the petroleum industry fireproof brickwork, raw material comprises following component by mass percentage: high-alumina cement 15～25%, powdery refractory mortar 2～5%, bauxitic clay particle 15～25%, dry sand 50～60%, surplus is a water.The essential mineral of high-alumina cement consists of monocalcium aluminate CaOAl2O3, is abbreviated as CA, and its content accounts for 75%.In addition, still contain a small amount of Dicalcium Phosphate (Feed Grade) C2S and other aluminate, like C 12 A 7 12CaO7Al2O3, be abbreviated as C12A7, calcium dialuminate CaO2A l2O3 is abbreviated as CA2.
The essential mineral of bauxitic clay consists of aluminum oxide, is the hydrated aluminum oxide Al2O3 that contains impurity.The staple of sand is SiO2.Generally, sand all contains certain moisture, when the water cut of sand is big, needs to reduce water consumption, increases the consumption of sand, guarantees that with this weight of dry sand is 50%～60% of overall weight.
Form because CA is the essential mineral of high-alumina cement, thereby the hydration process of CA and Al2O3 can roughly think to be exactly the hydration process of high-alumina cement and bauxitic clay; Sand (SiO2) is very faint with the water effect, can be considered inert mineral, when CA and Al2O3 carry out aquation under differing temps, can obtain different hydrated products:
When temperature is lower than 20 ℃,
Al2O3+CaO·Al2O3+13?H2O→CaO·Al2O3·10?H2O+Al2O3·3?H2O
CaOAl2O310 H2O is abbreviated as CAH10;
When temperature is 20～30 ℃,
Al2O3+ 2 (CaOAl2O3)+11 H2O → 2CaOAl2O38 H2O+Al2O33 H2O2CaOAl2O38 H2O is abbreviated as C2AH8
When temperature is higher than 30 ℃,
2Al2O3+3（CaO·Al2O3）+12?H2O→3CaO·Al2O3·6?H2O+2(Al2O3·3?H2O)
3CaOAl2O36 H2O is abbreviated as C3AH6
Hydrated product CAH10 and C2AH8 are needle-like or plate crystal; Can be interweaved into firm crystallization compound body, make mortar have higher intensity, the aluminum hydroxide gel of separating out (Al2O33 H2O) is insoluble in water; Be filled in the space of crystalline framework, form dense structure; And sand (SiO2) has the effect of filling and fine aggregate, so the early strength of this refractory mortar increases comparatively fast, later strength then increases not remarkable.
CAH10 and C2AH8 are metastable, can gradate to be more stable C3AH6.Conversion process raises along with temperature and quickens.After high-temperature calcination, the mortar staple is C3AH6 and SiO2, and the two is more stable material, is difficult for reacting with other materials, can guarantee mortar later stage ultimate compression strength.
Comprise that also mass percent is 0.5～2% hardening accelerator or early strength water-reducing agent.Say that further under the cold climates, this refractory mortar setting rate is slower in the winter time, early strength is slightly little in equal preserving period; Can be by mass percentage 0.5～2% add hardening accelerator because aquation C3A (C3AH6) reaction in its very fast and grout, the hydrated calcium chloroaluminate that generation almost is not soluted in water and with cement in the hydrated product calcium hydroxide reaction; Generate the minimum oxychlorination calcium of solubleness and separate out the skeleton formation that promotes to harden, enhancing hardness; In order to improve water-cement ratio, reduce water consumption simultaneously, can add early strength water-reducing agent; Reduce water requirement, when using equal high-alumina cement consumption, the intensity after can effectively improving it and solidifying.
Described bauxitic clay particulate maximum particle diameter is less than 5mm.Further say, build mortar joint by laying bricks or stones because of fireproof brickwork and need be controlled in 8～11mm, when the bauxitic clay particle is big, will cause gray seam thickness to increase inevitably; Mortar joint is thick more, and open flow its internal temperature of when calcining increases slow more, influences its sintering effect and later strength, can cause the waste of refractory mortar simultaneously, therefore must use the bauxitic clay particle of maximum particle diameter less than the continuous grading of 5mm.
Said dry sand is the medium sand of continuous grading.
When said high-alumina cement was selected 425 models, its consumption was 20～25%, and when high-alumina cement was selected 525 models, its consumption was 17～25%; When high-alumina cement was selected 625 models, its consumption was 17～22%, and when high-alumina cement was selected 725 models, its consumption was 15～20%. further to say; Adopt the high-alumina cement of different model, can adopt different consumptions to reach same intensity effect, specifically, when adopting high-alumina cement 425; Its parameter is 20～25%, and when adopting high-alumina cement 525, its parameter is 17～25%, when adopting high-alumina cement 625; Its parameter is 17～22%, and when adopting high-alumina cement 725, its parameter is 15～20%; Promptly identical intensity need be reached,, the consumption of cement can be reduced with the rising of cement mark.This refractory mortar early strength increases very fast, can reach about 70% of its US in 7 days, so should be used for short construction period and build the engineering that comes into operation immediately; Simultaneously; This refractory mortar has good sulphate-corrosion resistance, this be since it mainly consist of low calcium-aluminate, it is few to contain the silicic acid dicalcium; So the free calcium oxide of separating out during aquation is also few, be applicable to the engineering of resisting erosion of sulfate requirement.
This refractory mortar resistance to elevated temperatures is better, reaches 270 ℃ to 540 ℃, because produced solid state reaction during high temperature, has progressively replaced the aquation combination with sinter bonded, though make at high temperature, still can keep higher intensity, satisfies the formation testing open flow to the pyritous needs.
A kind of construction technology that is used to build by laying bricks or stones the mortar of petroleum industry fireproof brickwork may further comprise the steps:
(1) select batching according to envrionment conditions: envrionment temperature is more than 10 ℃ and 10 ℃ the time, and raw material consists of by mass percentage: high-alumina cement 15～25%, and powdery refractory mortar 2～5%, bauxitic clay particle 15～20%, dry sand 50～60%, surplus is a water; When temperature is lower than 10 ℃, add 0.5～2% hardening accelerator or early strength water-reducing agent; In different seasonal, adopt different batchings according to the different environment temperature, in higher spring of temperature, summer, autumn, can add hardening accelerator or early strength water-reducing agent, under the natural curing condition, can satisfy request for utilization;
(2) the employing machine is mixed or the artificial mode is mixed the raw material of step (1) and stirred by proportioning; According to actual amount and on-the-spot appointed condition, the mode that the employing machine is mixed stirs, and the water-retentivity, the workability that stir the back mortar all meet request for utilization, the use of can constructing;
(3) mortar that after stirring completion, uses step (2) to obtain in 4 hours is built a wall; After mortar stirs and accomplishes, should in 4 hours, use fully, before the high-alumina cement initial set, should use fully; When the environment of high temperature, high evaporation degree, should be noted that covering, avoid the sunlight direct irradiation; In the bigger environment of humidity, should be noted that the water of avoiding with extraneous contacts.
(4) build a wall after natural curing to mortar solidify.Generally, should adopt the mode of natural curing, forbid to make water, steam to carry out maintenance,, can adopt the mode of insulated curing in the winter of cold.
In construction process, should be noted that following content:
1, build by laying bricks or stones before, after refractory brick is shown up, forbid that water sends out brick, refractory brick must hide during rainy season, can from refractory mortar, draw portion of water because of the refractory brick that peace is built, and plays Water Reducer, quickens mortar hardening, is convenient to improve the mortar early strength.
2, configuration refractory mortar; Above-mentioned raw materials is stirred by proportioning, suitably increase the refractory cements ratio winter or add hardening accelerator, the chiltern amount is relatively poor, contain mud suitably increases the bauxitic clay ratio when heavier; Guarantee its workability; Promptly be used for fireproof brickwork and build by laying bricks or stones,, must use mechanical stirring so stir because of the bauxitic clay particle is 2～5mm solid matter.
Make the mortar mortar joint the thinnest when 3, building by laying bricks or stones as far as possible, because of the open flow calcination time be 10～25 minutes once, thin more its inner heating temperature of mortar mortar joint is high more, the sintering consolidation effect is good more, is beneficial to guarantee the mortar later strength.
4, this refractory mortar is forbidden to mix mutually with silicate cement or lime, also must not contact use with the Portland cement concrete (PCC) of not changing as yet.
5, forbid using water curing after peace finishes building, can only natural curing.
To sum up, the present invention compared with prior art has beneficial effect and really is:
1, the present invention uses novel refractory mortar to replace the construction of traditional refractory mortar, makes full use of the characteristic that refractory cements time of coagulation is short, early strength is high; Physical properties and later stage that the bauxitic clay particle serves as aggregate in early days can be sintered to whole chemical property with refractory mortar; And sand serves as aggregate and stopping composition and characteristics with low cost, configures novel refractory mortar, effectively improved the early strength of mortar, increased the adhesiveproperties of mortar and refractory brick, guaranteed the intensity of mortar after high-temperature calcination simultaneously;
The free calcium oxide of 2, separating out during aquation of the present invention is also few, effectively improved the mortar corrosion resistance nature, has improved fireproof brickwork erosion performance from underground ejection vitriol liquid when receiving the open flow operation;
3, the used starting material of the present invention are prone to obtain, and the equal handled easily of layoutprocedure and construction process can not prolong construction period, does not have all the other spinoffs, and no potential safety hazard is highly suitable for short construction period and has built the engineering that comes into operation immediately;
4, the present invention effectively reduces construction risk than traditional technology, has got rid of potential safety hazard;
5, the present invention effectively reduces construction cost than traditional technology, and above-mentioned raw-material market value is at present: 700 yuan/ton of refractory mortars; Refractory cements: 1900 yuan/ton; Bauxitic clay: 1200 yuan/ton; Sand: 70 yuan/ton; Traditional technology is built fireproof brickwork need use about 2.4 tons of refractory mortars, and the refractory mortar cost is 1680 yuan, uses this refractory mortar, with the equal consumption situation of refractory mortar under, cost is 1240～1580 yuan, and is more cheap than the traditional technology cost.
Embodiment
A kind of mortar that is used to build by laying bricks or stones the petroleum industry fireproof brickwork of the present invention, comprise following component: raw material consists of by mass percentage: high-alumina cement 15～25%, powdery refractory mortar 2～5%; Bauxitic clay particle 15～25%, dry sand 50～60%, surplus is a water; When temperature is low, can add mass percent and be 0.5～2% hardening accelerator or early strength water-reducing agent, bauxitic clay particulate maximum particle diameter is less than 5mm; Dry sand is the medium sand of continuous grading, and when said high-alumina cement was selected 425 models, its consumption was 20～25%; When high-alumina cement was selected 525 models, its consumption was 17～25%, when high-alumina cement is selected 625 models; Its consumption is 17～22%, and when high-alumina cement was selected 725 models, its consumption was 15～20%.
A kind of construction technology that is used to build by laying bricks or stones petroleum industry fireproof brickwork mortar comprises the steps:
(1) select batching according to envrionment conditions: envrionment temperature is more than 10 ℃ and 10 ℃ the time, and raw material consists of by mass percentage: high-alumina cement 15～25%, and powdery refractory mortar 2～5%, bauxitic clay particle 15～20%, dry sand 50～60%, surplus is a water; When temperature is lower than 10 ℃, add 0.5～2% hardening accelerator or early strength water-reducing agent;
(2) the employing machine is mixed or the artificial mode is mixed the raw material of step (1) and stirred by proportioning;
(3) mortar that after stirring completion, uses step (2) to obtain in 4 hours is built a wall;
(4) build a wall after natural curing to mortar solidify.
After the applicant processed according to said components and technology, it was following to detect data:
Fireproof brickwork will be removed after the formation testing operation is accomplished, and second ploughing is wanted in the soil, so fireproof brickwork is a temporary structure, the dismounting time is that open flow finishes not wait by 50 days in back 20 days, belongs to temporary building.Press national regulation, the temporary structure mortar strength is M5.0; Be that mortar pressure testing piece monolithic ultimate compression strength reaches more than the 5MPa, require 7 days maintenance data to reach final strength 70%, promptly 3.5MPa can know from last table, all can be up to state standards according to said ratio and calcining back, method test back intensity, suits the requirements.In the building process of refractory brick, adopt the mode of refractory mortar at present, it did not possess early strength before calcining; Cave in easily, dangerous, adopt mortar of the present invention to build refractory brick by laying bricks or stones after; It is according to national standard; 7 days early strength can reach more than 3.5 MPa, and National standard has solved safety-problems.
Claims (6)
1. mortar that is used to build by laying bricks or stones the petroleum industry fireproof brickwork, it is characterized in that: raw material comprises following component by mass percentage: high-alumina cement 15～25%, powdery refractory mortar 2～5%, bauxitic clay particle 15～25%, dry sand 50～60%, surplus is a water.
2. a kind of mortar that is used to build by laying bricks or stones the petroleum industry fireproof brickwork according to claim 1 is characterized in that: comprise that also mass percent is 0.5～2% hardening accelerator or early strength water-reducing agent.
3. a kind of mortar that is used to build by laying bricks or stones the petroleum industry fireproof brickwork according to claim 1 is characterized in that: described bauxitic clay particulate maximum particle diameter is less than 5mm.
4. a kind of mortar that is used to build by laying bricks or stones the petroleum industry fireproof brickwork according to claim 1 is characterized in that: said dry sand is the medium sand of continuous grading.
5. according to any described a kind of mortar that is used to build by laying bricks or stones the petroleum industry fireproof brickwork in the claim 1 to 4, it is characterized in that: when said high-alumina cement was selected 425 models, its consumption was 20～25%; When high-alumina cement is selected 525 models; Its consumption is 17～25%, and when high-alumina cement was selected 625 models, its consumption was 17～22%; When high-alumina cement was selected 725 models, its consumption was 15～20%.
6. a construction technology that is used to build by laying bricks or stones the mortar of petroleum industry fireproof brickwork is characterized in that, comprises the steps:
(1) select batching according to envrionment conditions: envrionment temperature is more than 10 ℃ and 10 ℃ the time, and raw material consists of by mass percentage: high-alumina cement 15～25%, and powdery refractory mortar 2～5%, bauxitic clay particle 15～20%, dry sand 50～60%, surplus is a water; When temperature is lower than 10 ℃, add 0.5～2% hardening accelerator or early strength water-reducing agent;
(2) the employing machine is mixed or the artificial mode is mixed the raw material of step (1) and stirred by proportioning;
(3) mortar that after stirring completion, uses step (2) to obtain in 4 hours is built a wall;
(4) build a wall after natural curing to mortar solidify.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104071981A CN102515672A (en) | 2011-12-09 | 2011-12-09 | Mortar used for building firewall in petroleum industry and its construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104071981A CN102515672A (en) | 2011-12-09 | 2011-12-09 | Mortar used for building firewall in petroleum industry and its construction process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102515672A true CN102515672A (en) | 2012-06-27 |
Family
ID=46286816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104071981A Pending CN102515672A (en) | 2011-12-09 | 2011-12-09 | Mortar used for building firewall in petroleum industry and its construction process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102515672A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102924105A (en) * | 2012-11-30 | 2013-02-13 | 中国石油集团川庆钻探工程有限公司 | Portland cement refractory mortar and construction process thereof |
| CN103833284A (en) * | 2014-03-06 | 2014-06-04 | 四川雅豪房地产开发有限公司 | Preparation method of house outer-wall mortar |
| CN104446574A (en) * | 2014-12-29 | 2015-03-25 | 江苏健神生物农化有限公司 | High-strength refractory cement mortar in petroleum industry and construction process thereof |
| CN104478345A (en) * | 2014-12-26 | 2015-04-01 | 黄贺明 | Prefabricatedfireproof wall and preparation method thereof |
| CN110563414A (en) * | 2019-10-28 | 2019-12-13 | 中国十七冶集团有限公司 | Preparation and construction method of separated concrete for CCW heat-preservation curtain wall |
| CN113929363A (en) * | 2021-09-26 | 2022-01-14 | 中国化学工程第十四建设有限公司 | High-temperature-resistant mortar for aircraft engine exhaust tower and preparation process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050176A (en) * | 1990-01-24 | 1991-03-27 | 秦永东 | High-temperature-resistant refractory plastic material |
| CN1569726A (en) * | 2004-05-13 | 2005-01-26 | 杨普安 | Fire-resistant material, application thereof and method for preparing fireproof part employing fire-resistant material |
-
2011
- 2011-12-09 CN CN2011104071981A patent/CN102515672A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050176A (en) * | 1990-01-24 | 1991-03-27 | 秦永东 | High-temperature-resistant refractory plastic material |
| CN1569726A (en) * | 2004-05-13 | 2005-01-26 | 杨普安 | Fire-resistant material, application thereof and method for preparing fireproof part employing fire-resistant material |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102924105A (en) * | 2012-11-30 | 2013-02-13 | 中国石油集团川庆钻探工程有限公司 | Portland cement refractory mortar and construction process thereof |
| CN102924105B (en) * | 2012-11-30 | 2015-11-04 | 中国石油集团川庆钻探工程有限公司 | Portland cement refractory mortar and construction process thereof |
| CN103833284A (en) * | 2014-03-06 | 2014-06-04 | 四川雅豪房地产开发有限公司 | Preparation method of house outer-wall mortar |
| CN104478345A (en) * | 2014-12-26 | 2015-04-01 | 黄贺明 | Prefabricatedfireproof wall and preparation method thereof |
| CN104446574A (en) * | 2014-12-29 | 2015-03-25 | 江苏健神生物农化有限公司 | High-strength refractory cement mortar in petroleum industry and construction process thereof |
| CN110563414A (en) * | 2019-10-28 | 2019-12-13 | 中国十七冶集团有限公司 | Preparation and construction method of separated concrete for CCW heat-preservation curtain wall |
| CN110563414B (en) * | 2019-10-28 | 2022-01-25 | 中国十七冶集团有限公司 | Preparation and construction method of separated concrete for CCW heat-preservation curtain wall |
| CN113929363A (en) * | 2021-09-26 | 2022-01-14 | 中国化学工程第十四建设有限公司 | High-temperature-resistant mortar for aircraft engine exhaust tower and preparation process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103342494B (en) | Hydration heat inhibited concrete expanding material as well as preparation method and applications thereof | |
| CN103964713B (en) | Flyash and Bayer process red mud is utilized to prepare the method for belite aluminosulfate cement | |
| CN101691291B (en) | Method for producing pasty unclassified tailing filling materials containing red mud | |
| CN102875041B (en) | Method for preparing room-temperature curing one-component alkali-activated cement with calcination at low temperature | |
| CN106746785A (en) | A kind of lower shrinkage early-strength filling in mine Binder Materials | |
| CN102531509B (en) | Ardealite basis composite gelled material and coagulant thereof | |
| CN105645898A (en) | Modified gypsum-based self-leveling mortar and preparation and application thereof | |
| CN102924105B (en) | Portland cement refractory mortar and construction process thereof | |
| CN102515672A (en) | Mortar used for building firewall in petroleum industry and its construction process | |
| CN102424550B (en) | Laterite slag baking-free brick and preparation method thereof | |
| CN103553514A (en) | Phosphorus slag powder doped dry powdered anti-crack mortar | |
| CN104086198B (en) | A kind of glass furnace Apyre flame-proof material and goods thereof | |
| CN102887716A (en) | Self-compaction refractory concrete | |
| CN101948255B (en) | Preparation method of composite cement with low clinker dosage and high flexural compression ratio | |
| Zhang et al. | A preliminary study of the properties of potassium phosphate magnesium cement-based grouts admixed with metakaolin, sodium silicate and bentonite | |
| CN104909634A (en) | Autoclaved brick prepared from large-mixing-amount steel slag powder and preparation method of autoclaved brick | |
| WO2017085565A2 (en) | Portland cement free activation of ground granulated blast furnace slag | |
| CN103922619A (en) | Desulfurized gypsum-based hydraulic cementing material | |
| CN103553515B (en) | A kind of dry-mix being mixed with phosphorus slag powder | |
| CN102167536B (en) | Secondary ettringite type expanding agent and preparation method and application thereof | |
| CN105801062B (en) | The method that self-leveling material is prepared using phosphorus solid waste | |
| CN101935172B (en) | Roller steel slag fine aggregate and composite slag powder cemented material | |
| CN105778875A (en) | Geopolymer oil well cement | |
| CN109665773A (en) | A kind of clinker replaces the C80 high-strength concrete of fine aggregate | |
| CN105481321A (en) | Modified gypsum base screed and preparation and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120627 |