CN108529913A - A kind of fine coal lacquer putty polymer material and the preparation method and application thereof - Google Patents
A kind of fine coal lacquer putty polymer material and the preparation method and application thereof Download PDFInfo
- Publication number
- CN108529913A CN108529913A CN201810326099.2A CN201810326099A CN108529913A CN 108529913 A CN108529913 A CN 108529913A CN 201810326099 A CN201810326099 A CN 201810326099A CN 108529913 A CN108529913 A CN 108529913A
- Authority
- CN
- China
- Prior art keywords
- flyash
- exciting agent
- fine coal
- lacquer putty
- polymer material
- 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
- C04B7/24—Cements from oil shales, residues or waste other than slag
- C04B7/243—Mixtures thereof with activators or composition-correcting additives, e.g. mixtures of fly ash and alkali activators
-
- 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
- C04B12/00—Cements not provided for in groups C04B7/00 - C04B11/00
- C04B12/005—Geopolymer cements, e.g. reaction products of aluminosilicates with alkali metal hydroxides or silicates
-
- 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
Abstract
The invention discloses a kind of fine coal lacquer putty polymer material and the preparation method and application thereof, which includes following parts by weight component：Flyash 72 94, exciting agent 5 15, water-reducing agent 13, flyash are 100% flyash, and exciting agent is the mixing liquid of sodium hydroxide and sodium metasilicate.The present invention is using polymerisation as cardinal principle, and flyash is main material, with sodium hydroxide and sodium metasilicate for main exciting agent, prepares road foundation road surface.Flyash is ground by thunder door mill and co-vibration mill, is increased the activity of flyash while being destroyed surface portion crystalline phase object.The addition of exciting agent can make mullite inside flyash etc. that gelling reaction polymerisation occur, and generate intensity.Special ratios exciting agent, which is added, in flyash quickly to solidify, and be not necessarily to high temperature sintering, energy-saving and emission-reduction, it is sufficient to be referred to as the green material of energy-saving and emission-reduction.
Description
Technical field
The present invention relates to fine coal lacquer putty polymers technical field, more particularly to a kind of fine coal lacquer putty polymer material and its preparation side
Method and application.
Background technology
Geo-polymer referred to as polymers is one kind, and there is oxygen-octahedron to be connected by bridging oxygen key with aluminum-oxygen tetrahedron
The hydraulicity gelling material material of the strong structure of class zeolite three-dimensional connect.Ground polymer material is that application study is non-in the world in recent years
Often active one of material.Ground polymers is elongated by the sial raw material with pozzolanic activity, such as：Metakaolin, kaolin, fine coal
Ash, volcanic ash, clay etc. obtain at a temperature of telling somebody what one's real intentions are through process appropriate, have the process characteristic for exempting from high temperature sintering.
In other words, it, using process appropriate, is obtained by chemical reaction using clay, alkali-activator as primary raw material
With a kind of new material similar with ceramic performance.
Currently, ground polymers is obtained for application at many aspects, especially in construction material and aspect of building the road using more
Extensively.However, in existing technique, multi-process is complicated, and raw material type is more, and cost is high, and stability is poor, setting time
It is long, and it is difficult to keep preferable resistance to compression and buckle resistance.
Invention content
Technical problem to be solved by the invention is to provide a kind of fine coal lacquer putty polymer material and the preparation method and application thereof,
There is preferable economic value by fine coal lacquer putty polymer material prepared by this method, manufacturing process is environmentally protective, highly practical.
The technical problem to be solved by the present invention is to what is be achieved through the following technical solutions：
A kind of fine coal lacquer putty polymer material, including following parts by weight component：Flyash 72-94, exciting agent 5-15, water-reducing agent
1-3, the flyash are 100% flyash, and the exciting agent is the mixing liquid of sodium hydroxide and sodium metasilicate.
Preferably, in above-mentioned technical proposal, a concentration of 55-57% of the exciting agent, the exciting agent includes following
Parts by weight component：Sodium metasilicate 2-6, sodium hydroxide 3-9.
Preferably, in above-mentioned technical proposal, the water-reducing agent is naphthalene water reducer.
A kind of preparation method of fine coal lacquer putty polymer material, includes the following steps：
1) prepare exciting agent and water-reducing agent by weight；
2) prepare flyash by weight, and flyash is ground processing；
3) flyash is uniformly mixed and is stirred in blender with exciting agent, water-reducing agent；
4) mixture that stirring is completed is for use.
Preferably, in above-mentioned technical proposal, the flyash of the step 2) is increased by co-vibration mill or thunder door mill
Active attrition process.
Preferably, in above-mentioned technical proposal, a concentration of 55-57% of the exciting agent.
Preferably, in above-mentioned technical proposal, the mixture of the step 4) is repaired for road surfacing or road surface.
A kind of application of fine coal lacquer putty polymer material, the material are used to prepare road foundation road surface.
The present invention is using polymerisation as cardinal principle, and flyash is main material, based on sodium hydroxide and sodium metasilicate
Exciting agent is wanted, road foundation road surface is prepared.
Flyash is ground by thunder door mill and co-vibration mill, is increased the activity of flyash while being destroyed surface portion crystalline substance
Phase object.This step can increase polymerisation ratio, and identical quantity exciting agent can increase intensity.
The addition of exciting agent can make mullite inside flyash etc. that gelling reaction polymerisation occur, and generate intensity.This
The raw material (presoma) of reaction are 100% flyash, and special ratios exciting agent, which is added, quickly to be solidified, and high temperature sintering is not necessarily to,
Energy-saving and emission-reduction, it is sufficient to be referred to as the green material of energy-saving and emission-reduction.
Above-mentioned technical proposal of the present invention, has the advantages that：
If 1, polymers technology in original ground is applied to flyash, cost is excessively high, higher than with grade cement concrete.The skill of the present invention
Art considerably reduces production cost using the method for improving flyash activity.
2, in excitation agent prescription of the invention with resistance to compression for main application purpose, lost in the case where meeting the pouring paved the way
Part tensile resistance meets the needs of reducing cost.
Specific implementation mode
Specific embodiments of the present invention are described in detail below, in order to further understand the present invention.
All experimental methods used are conventional method unless otherwise specified in following embodiment.
Material used in following embodiment, reagent etc. can be obtained unless otherwise specified by commercial sources.
Embodiment 1
A kind of fine coal lacquer putty polymer material, including following parts by weight component：Flyash 72, exciting agent 15, water-reducing agent 3.Powder
Coal ash is 100% flyash, and exciting agent is the mixing liquid of sodium hydroxide and sodium metasilicate.Wherein, a concentration of the 55% of exciting agent,
Exciting agent includes sodium metasilicate 6, sodium hydroxide 9.Sodium hydroxide is sheet, and sodium metasilicate is 40 Baume degrees liquid.Naphthalene water reducer
It is obtained by commercial sources.
A kind of preparation method of fine coal lacquer putty polymer material, includes the following steps：
1) prepare exciting agent and water-reducing agent by weight；
2) prepare flyash by weight, and by flyash by co-vibration mill or thunder door mill increase active grinding plus
Work；
3) flyash is uniformly mixed and is stirred in blender with exciting agent, water-reducing agent；
4) mixture that stirring is completed is for use.
Embodiment 2
A kind of fine coal lacquer putty polymer material, including following parts by weight component：Flyash 94, exciting agent 5, water-reducing agent 1.Fine coal
Ash is 100% flyash, and exciting agent is the mixing liquid of sodium hydroxide and sodium metasilicate.Wherein, a concentration of the 57% of exciting agent swashs
It includes sodium metasilicate 2, sodium hydroxide 3 to send out agent.Sodium hydroxide is sheet, and sodium metasilicate is 40 Baume degrees liquid.Naphthalene water reducer is logical
Cross commercial sources acquisition.
A kind of preparation method of fine coal lacquer putty polymer material, includes the following steps：
1) prepare exciting agent and water-reducing agent by weight；
2) prepare flyash by weight, and by flyash by co-vibration mill or thunder door mill increase active grinding plus
Work；
3) flyash is uniformly mixed and is stirred in blender with exciting agent, water-reducing agent；
4) mixture that stirring is completed is for use.
Embodiment 3
A kind of fine coal lacquer putty polymer material, including following parts by weight component：Flyash 88, exciting agent 10, water-reducing agent 2, powder
Coal ash is 100% flyash, and exciting agent is the mixing liquid of sodium hydroxide and sodium metasilicate.Wherein, a concentration of the 56% of exciting agent,
The exciting agent includes sodium metasilicate 4, sodium hydroxide 6.Sodium hydroxide is sheet, and sodium metasilicate is 40 Baume degrees liquid.Naphthalene system subtracts
Aqua is obtained by commercial sources.
A kind of preparation method of fine coal lacquer putty polymer material, includes the following steps：
1) prepare exciting agent and water-reducing agent by weight；
2) prepare flyash by weight, and by flyash by co-vibration mill or thunder door mill increase active grinding plus
Work；
3) flyash is uniformly mixed and is stirred in blender with exciting agent, water-reducing agent；
4) mixture that stirring is completed is for use.
Embodiment 4
A kind of fine coal lacquer putty polymer material, including following parts by weight component：Flyash 83, exciting agent 15, water-reducing agent 2, powder
Coal ash is 100% flyash, and exciting agent is the mixing liquid of sodium hydroxide and sodium metasilicate.Wherein, a concentration of the 56% of exciting agent,
The exciting agent includes sodium metasilicate 6, sodium hydroxide 9.Sodium hydroxide is sheet, and sodium metasilicate is 40 Baume degrees liquid.Naphthalene system subtracts
Aqua is obtained by commercial sources.
A kind of preparation method of fine coal lacquer putty polymer material, includes the following steps：
1) prepare exciting agent and water-reducing agent by weight；
2) prepare flyash by weight, and by flyash by co-vibration mill or thunder door mill increase active grinding plus
Work；
3) flyash is uniformly mixed and is stirred in blender with exciting agent, water-reducing agent；
4) mixture that stirring is completed is for use.
Embodiment 5
A kind of fine coal lacquer putty polymer material, including following parts by weight component：Flyash 94, exciting agent 15, water-reducing agent 3, powder
Coal ash is 100% flyash, and exciting agent is the mixing liquid of sodium hydroxide and sodium metasilicate.Wherein, a concentration of the 56% of exciting agent,
The exciting agent includes sodium metasilicate 6, sodium hydroxide 9.Sodium hydroxide is sheet, and sodium metasilicate is 40 Baume degrees liquid.Naphthalene system subtracts
Aqua is obtained by commercial sources.
A kind of preparation method of fine coal lacquer putty polymer material, includes the following steps：
1) prepare exciting agent and water-reducing agent by weight；
2) prepare flyash by weight, and by flyash by co-vibration mill or thunder door mill increase active grinding plus
Work；
3) flyash is uniformly mixed and is stirred in blender with exciting agent, water-reducing agent；
4) mixture that stirring is completed is for use.
Embodiment 6
A kind of fine coal lacquer putty polymer material, including following parts by weight component：Flyash 72, exciting agent 5, water-reducing agent 1, fine coal
Ash is 100% flyash, and exciting agent is the mixing liquid of sodium hydroxide and sodium metasilicate.Wherein, a concentration of the 56% of exciting agent, institute
It includes sodium metasilicate 2, sodium hydroxide 3 to state exciting agent.Sodium hydroxide is sheet, and sodium metasilicate is 40 Baume degrees liquid.Naphthalene system diminishing
Agent is obtained by commercial sources.
A kind of preparation method of fine coal lacquer putty polymer material, includes the following steps：
1) prepare exciting agent and water-reducing agent by weight；
2) prepare flyash by weight, and by flyash by co-vibration mill or thunder door mill increase active grinding plus
Work；
3) flyash is uniformly mixed and is stirred in blender with exciting agent, water-reducing agent；
4) mixture that stirring is completed is for use.
Embodiment 7
A kind of fine coal lacquer putty polymer material, including following parts by weight component：Flyash 94, exciting agent 5, water-reducing agent 1, fine coal
Ash is 100% flyash, and exciting agent is the mixing liquid of sodium hydroxide and sodium metasilicate.Wherein, a concentration of the 55% of exciting agent, institute
It includes sodium metasilicate 2, sodium hydroxide 3 to state exciting agent.Sodium hydroxide is sheet, and sodium metasilicate is 40 Baume degrees liquid.Naphthalene system diminishing
Agent is obtained by commercial sources.
A kind of preparation method of fine coal lacquer putty polymer material, includes the following steps：
1) prepare exciting agent and water-reducing agent by weight；
2) prepare flyash by weight, and by flyash by co-vibration mill or thunder door mill increase active grinding plus
Work；
3) flyash is uniformly mixed and is stirred in blender with exciting agent, water-reducing agent；
4) mixture that stirring is completed is for use.
Material prepared by above-described embodiment is analyzed, the effect of wherein embodiment 3 is best.Boiling resistance to compression in 8 hours
43.6MPa, bend resistance 3.5MPa, 28 days resistance to compression 62.7MPa, bend resistance 6.25MPa.It is with obvious effects.The effect of other embodiment
Slightly worse than embodiment 3, but overall effect is without significant difference.
The present invention is using polymerisation as cardinal principle, and flyash is main material, based on sodium hydroxide and sodium metasilicate
Exciting agent is wanted, road foundation road surface is prepared.
Flyash is ground by thunder door mill and co-vibration mill, is increased the activity of flyash while being destroyed surface portion crystalline substance
Phase object.The addition of exciting agent can make mullite inside flyash etc. that gelling reaction polymerisation occur, and generate intensity.This reaction
Raw material (presoma) be 100% flyash, be added special ratios exciting agent can quickly solidify, be not necessarily to high temperature sintering, it is energy saving
Emission reduction, it is sufficient to be referred to as the green material of energy-saving and emission-reduction.
Although the present invention is disclosed as above with embodiment, so it is not intended to limit the present invention, any people in the art
Member can make a variety of different selections and modification, therefore the protection model of the present invention without departing from the spirit and scope of the present invention
It encloses and is limited by claims and its equivalents.
Claims (8)
1. a kind of fine coal lacquer putty polymer material, including following parts by weight component：Flyash 72-94, exciting agent 5-15, water-reducing agent 1-
3, the flyash is 100% flyash, and the exciting agent is the mixing liquid of sodium hydroxide and sodium metasilicate.
2. fine coal lacquer putty polymer material according to claim 1, which is characterized in that a concentration of 55- of the exciting agent
57%, the exciting agent includes following parts by weight component：Sodium metasilicate 2-6, sodium hydroxide 3-9.
3. fine coal lacquer putty polymer material according to claim 1, which is characterized in that the water-reducing agent is naphthalene water reducer.
4. according to the preparation method of any fine coal lacquer putty polymer materials of claim 1-3, which is characterized in that including following
Step：
1) prepare exciting agent and water-reducing agent by weight；
2) prepare flyash by weight, and flyash is ground processing；
3) flyash is uniformly mixed and is stirred in blender with exciting agent, water-reducing agent；
4) mixture that stirring is completed is for use.
5. the preparation method of fine coal lacquer putty polymer material according to claim 4, which is characterized in that the powder of the step 2)
Coal ash is to carry out increasing active attrition process by co-vibration mill or thunder door mill.
6. the preparation method of fine coal lacquer putty polymer material according to claim 4, which is characterized in that the exciting agent it is dense
Degree is 55-57%.
7. the preparation method of fine coal lacquer putty polymer material according to claim 4, which is characterized in that the step 4) is mixed
Object is closed to repair for road surfacing or road surface.
8. according to the application of any fine coal lacquer putty polymer materials of claim 1-3, the material is used to prepare Road
Base road surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810326099.2A CN108529913A (en) | 2018-04-12 | 2018-04-12 | A kind of fine coal lacquer putty polymer material and the preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810326099.2A CN108529913A (en) | 2018-04-12 | 2018-04-12 | A kind of fine coal lacquer putty polymer material and the preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108529913A true CN108529913A (en) | 2018-09-14 |
Family
ID=63481003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810326099.2A Pending CN108529913A (en) | 2018-04-12 | 2018-04-12 | A kind of fine coal lacquer putty polymer material and the preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108529913A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111439941A (en) * | 2020-03-04 | 2020-07-24 | 湖南大学 | Composition for preparing inorganic polymer material and preparation method of material |
| CN114804830A (en) * | 2022-02-25 | 2022-07-29 | 中南大学 | Geopolymer-based composite material, preparation method thereof and application thereof in aircraft heat-proof structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182164A (en) * | 2007-11-16 | 2008-05-21 | 严云 | Clinker-free baking-free fly ash polymer cement |
| US20110290153A1 (en) * | 2010-12-28 | 2011-12-01 | Abdullah Mohd Mustafa Al Bakri | Environment friendly composite construction materials |
| KR101315371B1 (en) * | 2011-02-28 | 2013-10-04 | 주식회사 알씨산업 | Method for production of high strength concrete using fly ash geopolymer |
| CN103449794A (en) * | 2013-08-26 | 2013-12-18 | 温州大学 | Fly-ash-base geopolymer rice hull thermal-insulation mortar |
| CN104098282A (en) * | 2013-04-03 | 2014-10-15 | 神华集团有限责任公司 | Geopolymer composition, geopolymer material and preparation method of geopolymer material |
| CN104803630A (en) * | 2014-01-26 | 2015-07-29 | 神华集团有限责任公司 | Geopolymer composition and geopolymer material |
| CN107311546A (en) * | 2017-08-02 | 2017-11-03 | 广东中澳高科新技术服务中心有限公司 | A kind of geo-polymer base foamed material and preparation method thereof |
-
2018
- 2018-04-12 CN CN201810326099.2A patent/CN108529913A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182164A (en) * | 2007-11-16 | 2008-05-21 | 严云 | Clinker-free baking-free fly ash polymer cement |
| US20110290153A1 (en) * | 2010-12-28 | 2011-12-01 | Abdullah Mohd Mustafa Al Bakri | Environment friendly composite construction materials |
| KR101315371B1 (en) * | 2011-02-28 | 2013-10-04 | 주식회사 알씨산업 | Method for production of high strength concrete using fly ash geopolymer |
| CN104098282A (en) * | 2013-04-03 | 2014-10-15 | 神华集团有限责任公司 | Geopolymer composition, geopolymer material and preparation method of geopolymer material |
| CN103449794A (en) * | 2013-08-26 | 2013-12-18 | 温州大学 | Fly-ash-base geopolymer rice hull thermal-insulation mortar |
| CN104803630A (en) * | 2014-01-26 | 2015-07-29 | 神华集团有限责任公司 | Geopolymer composition and geopolymer material |
| CN107311546A (en) * | 2017-08-02 | 2017-11-03 | 广东中澳高科新技术服务中心有限公司 | A kind of geo-polymer base foamed material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| A. M. MUSTAFA AI BAKRI， ET AL.: ""Effect of Na2Si03/NaOH Ratios and NaOH Molarities on Compressive Strength of Fly-Ash——Based Geopolymer"", 《ACI MATERIALS JOURNAL》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111439941A (en) * | 2020-03-04 | 2020-07-24 | 湖南大学 | Composition for preparing inorganic polymer material and preparation method of material |
| CN111439941B (en) * | 2020-03-04 | 2022-04-08 | 湖南大学 | Composition for preparing inorganic polymer material and preparation method of material |
| CN114804830A (en) * | 2022-02-25 | 2022-07-29 | 中南大学 | Geopolymer-based composite material, preparation method thereof and application thereof in aircraft heat-proof structure |
| CN114804830B (en) * | 2022-02-25 | 2023-03-14 | 中南大学 | Geopolymer-based composite material, preparation method thereof and application thereof in aircraft heat-proof structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104150840B (en) | C60 full-manufactured sand super high-rise pump concrete | |
| CN102092993A (en) | Nano reinforcing method for recycled aggregate concrete | |
| CN103723988B (en) | The high-strength light gas concrete utilizing glass powder to prepare and method thereof | |
| CN106630700B (en) | It is a kind of using flyash and cullet as inorganic coagulation material of raw material and preparation method thereof | |
| CN101492263A (en) | Wax shale gray slag base polymer gelled material | |
| CN105036691A (en) | Method for preparing non-sintered ceramsite by adding dredged sludge | |
| CN106007434A (en) | Alkali-activated high-titanium slag baking-free haycite and preparation method thereof | |
| CN101353245B (en) | Waste stone dust-containing high performance superfine sand concrete gel material and use method thereof | |
| CN110040997B (en) | Nano-nucleating early strength agent for metakaolin as well as preparation method and application of nano-nucleating early strength agent | |
| CN105481272B (en) | The preparation method of geopolymer and its precursor, product and application | |
| CN103467020A (en) | Energy-saving and environment-friendly building ornament material and preparation method thereof | |
| CN110759699B (en) | Bottom layer plastering gypsum and preparation method thereof | |
| CN105060786A (en) | Feldspar waste material concrete and preparation method thereof | |
| CN105622009A (en) | Silica fume-free ultra-high performance concrete matrix and preparation method thereof | |
| CN105669146A (en) | Autoclaved aerated concrete block containing neutral sodium-salt alkali activated slag concrete and preparation method of autoclaved aerated concrete block | |
| CN111511699A (en) | Control of setting time of geopolymer compositions containing high calcium reactive aluminosilicate materials | |
| CN114988791A (en) | Flue grouting material doped with sulfur-rich lithium slag and preparation method and application thereof | |
| CN108529913A (en) | A kind of fine coal lacquer putty polymer material and the preparation method and application thereof | |
| CN101549982B (en) | Calcination-free desulfurized gypsum brick | |
| CN101492274B (en) | Titanium gypsum dry mixed mortar | |
| JP2021181402A (en) | System and method for preparing and applying non-portland cement-based material | |
| CN106242618A (en) | A kind of self-cleaning ecological permeable bricks and preparation method thereof | |
| CN105645804A (en) | Composite powder for cement concrete | |
| CN1314616C (en) | Self-flatting material of gypsum mine and preparation process thereof | |
| CN107473660A (en) | A kind of building block of high intensity sulfurizing iron tailing concrete and its preparation and application |
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: 20180914 |
|
| RJ01 | Rejection of invention patent application after publication |