CN87102274A - Prepare chemically stable concrete mixture - Google Patents
Prepare chemically stable concrete mixture Download PDFInfo
- Publication number
- CN87102274A CN87102274A CN 87102274 CN87102274A CN87102274A CN 87102274 A CN87102274 A CN 87102274A CN 87102274 CN87102274 CN 87102274 CN 87102274 A CN87102274 A CN 87102274A CN 87102274 A CN87102274 A CN 87102274A
- Authority
- CN
- China
- Prior art keywords
- mixture
- kilograms
- concrete
- quality
- liquid glass
- 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
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Prepare chemically stable concrete mixture and contain (quality %):
Liquid glass 8-18
Disperse the very thin acidic aqueous glass 30-40 of volcanics
The additive of distortion, they become 1-6 for crystallization
The silicon-dioxide of shape
And/or the kaolin 1-5 of feldspar structure
And/or trimeric cyanamide 0.2-1.0
The stopping composition to 100 of ph stability.
Description
The present invention relates to building material field, specifically about the chemically stable concrete mix on the liquid glass basis.Can be applicable to make building and technology member from the concrete of mentioned mixture preparation.These members at coloured and ferrous metallurgy, use in the enterprise of chemical industry under the condition of the liquid state of severe corrosive or chlorine attitude medium.
The present known liquid glass that contains; levigate quartz sand; the mixture of the stiffening agent of perlite and silicofluoric acid salt is applied to prepare solution; tackiness agent and cementing agent are to obtain erosion-resisting protective layer; the heat power stability of this protective layer structure is low; therefore their feature is the water-absorbent height, and water stability is low, stable limited in corrosive medium.
The stiffening agent that adopts in mixture has very high toxicity, and this causes certain difficulty for their preparation.
Stable concrete mixture (No. 306093, Soviet Union's letters patent, the MKN of known preparation acid
3CO4 B 19/04) component ratio following (quality %):
Liquid glass (δ=1.34 gram/cubic centimetres) 15-25
Perlite, granularity is less than 0.14 millimeter 10-20
Perlite, granularity 0.14-5 millimeter 15-25
Andesite rubble, granularity greater than 5 millimeters to 100.
The concrete ultimate compression strength limit that obtains from this mixture is 28.0-29.0MPa, flexural strength 9.6-11.0MPa, and described concrete stability is measured to boil after 1.5 hours the change of quality in 40% sulfuric acid, is 96.3-97.2%.
This concrete acid acceptance is high but have highly porous structure simultaneously, is characterized in that intensity and water stability are low.
(Soviet Union's license passport is pressed MKN No. 513955 to the following mixture of also known preparation silicate concrete
3C 04 B 19/04), it contains (quality %):
Liquid glass 15-25
The particle slag 20-30 that ground
Filler 40-55
The levigated quartz sand, its per surface
Be 2000-2500 square centimeter/restrain 100
Owing to added the levigated quartz sand, it is the active ingredient of slag one bonding glass, makes the concrete intensity that obtains from this mixture reach 80.0-100MPa, and simultaneously, the concrete that makes from this mixture has high acid penetration.The chemically stable concrete mixture of known preparation (Soviet Union's license licensed licenser licence book number 882965, MKN
3C 04 B 19/04), its component is (quality %):
Liquid glass 12-13
Levigated filler 33-34
The filling of ph stability expects 100
Under mechanical load and corrosion amalgamation, low with creep rupture strength from the resulting concrete of said mixture, acid penetration, water absorption height and water stability are low to be feature.
Basic task of the present invention is to improve the chemically stable concrete mixture of preparation, its approach is on quality and quantity, select improved component, to guarantee that concrete has high-caliber creep rupture strength, low acid penetration and high water stability under the amalgamation of mechanical load corrosive medium.
The solution of task is to have proposed to be the chemically stable concrete mixture of preparation, it contains liquid glass, disperse the very thin acidic aqueous glass of volcanics, stopping composition to ph stability, according to invention, this stopping composition contains the silicon-dioxide of crystallization distortion and/or the kaolin and/or the trimeric cyanamide of mud stone structure.The component of mixture is in following ratio (quality %):
Liquid glass 8-18
Disperse the very thin acidic aqueous glass 30-40 of volcanics
The silica 1-6 of crystallization distortion
And/or the kaolin 1-5 of mud stone structure
And/or trimeric cyanamide 0.2-1.0
The stopping composition to 100 of ph stability
Add a kind of of above-mentioned improved additives or their mixture can significantly improve prepared chemically stable concrete physics-mechanical properties in mixture, these character make this concrete fine as building and technology member effect in strong corrosive medium and under the high-load condition.Like this, described concrete and Soviet Union's license licensed licenser licence book number 882965 known concrete relatively is characterized by:
-under mechanical load and corrosive medium amalgamation,
Creep rupture strength improves 25-45%
-acid penetration reduction 28-30%
-water stability improves 10-15%
For reducing chemically stable concrete acid penetration, guarantee it in the snappiness modulus and the creep rupture strength that reach under the dry air condition under the acid effect, mixture preferably has following component (quality %):
-liquid glass 12-15
The acidic aqueous glass of volcanics that-dispersion is very thin-
-obsidian 35-40
The silica 1-6 of-crystallization distortion
The stopping composition to 100 of-ph stability
For making chemically stable concrete have high creep rupture strength in water, mixture preferably has following component (weight %):
-liquid glass 8-12
The acidic aqueous glass of volcanics that-dispersion is very thin-
-perlite 30-35
The kaolin 1-5 of-mud stone structure
The filler to 100 of-ph stability
In order in various types of corrosive mediums (tart, neutral, alkalescence), to use chemically stable concrete, wish that mixture has following component (quality %):
-liquid glass 15-18
-perlite 32-34
The silicon-dioxide 2-4 of-crystallization distortion
The kaolin 2-4 of-mud stone structure
The stopping composition to 100 that-acid is stable
For guaranteeing that chemically stable concrete in the high target aspect water-absorbent and the water stability, can add the trimeric cyanamide of 0.4-0.6 quality % in mixture.
For the mixture that obtains the proposed said components of chemically stable concrete can the laxative remedy preparation.
The stopping composition of ph stability, disperse very thin acidic aqueous glass of volcanics and distortion batching, be stirred in the mixture that obtains dried ingredients together as the silicon-dioxide of crystalline texture and/or the kaolin of mud stone structure.The mixture that obtains mixed with liquid glass and distortion batching-trimeric cyanamide and stir to make to become prepare the concrete uniform mixture of chemically stable.
The selection of the amount of composition is decided by chemically stable concrete given physics one mechanical characteristics of gained.
According to use concrete institute requirement in various corrosive mediums, mixture can contain the mixture of a kind of above-mentioned distortion batching or their various compositions in its component.
The mixture that makes like this, in the model that is placed in, sealing was also carried out under 0.6-0.2MPa pressure hydrothermal treatment consists 6-10 hour.
Can be with quartz sand and grouan as the stopping composition of ph stability, quartzy, the rubble of doleritic and andesite.
Hydrated glass as acid volcanic rock can be used perlite, obsidian, glassy matrices.
In mixture, add the distortion batching and can reach plus effect by following amount (quality %):
The silica 1-6 of-crystallization distortion
The kaolin 1-5 of-mud stone structure
-trimeric cyanamide 0.2-1.0
The silicon-dioxide that adds above-mentioned amount in mixture impels and form more organized feldspar type structure in the hardened concrete.When the content of silicon-dioxide in mixture is less than the 1%(quality) time, also form mordenite forming the felspathic while, thereby cause the creep rupture strength of concrete in corrosive medium to reduce.
In mixture, add more than the 6%(quality) silicon-dioxide, be unsuitable technically, because it does not change concrete structure and does not play inert filler.
In the system of liquid glass-perlite (obsidian, glassy matrices Butpocpup), except that stable feldspar type mineral substance, also there is the free alkali of a great deal of.
The kaolin and the interaction of this alkali that add the mud stone structure of 1-5% quality in mixture form water-fast aluminosilicate, thereby have guaranteed the raising of the creep rupture strength of concrete in water and alkali.
Trimeric cyanamide depends on its hydrophobic effect to the influence of concrete structure.Hydrophobic effect is not remarkable when the trimeric cyanamide that adds in the mixture is less than 0.2% quality, and concrete is a feature with high-hydroscopicity and limited water stability, but does not cause the further improvement of concrete physical technique character more than 1% quality.
Measure by standard method from the concrete modulus of elasticity of described mixture gained and resistance to compression, tensile strength.
The definition of described concrete stability factor is the ratio of boiling the ultimate compression strength ultimate value of sample after 36 hours and the breakdown point value of the similar sample preserved in respective media under the dry air condition.
The height of the concrete creep rupture strength in corresponding corrosive medium indicates that concrete bears the ability of load lastingly.
For all components, concrete creep rupture strength level is measured by following unified approach.
In pressing machine, increase load in the short period of time until (for example R=100MPa) the intensity of breaking with the mensuration concrete sample.Then sample is forced near limit load (as σ=0.95R, be R=95MPa), time record from the applying load to the concrete rupture is got off, reduce load level σ=0.9R then, σ=0.85R, σ=0.8R or the like to fresh sample, simultaneously at each load level, the time that the record concrete exists under load, the data that obtain are made curve in the set of coordinates of " load-time ", this curve sign the time of concrete existence under this or that load.Can determine unlikely disruptive load level by the gained chart with extrapotation, promptly sample can bear any long load level.The load level of being looked for is exactly concrete creep rupture strength level.
When being determined in the corrosive medium concrete creep rupture strength level, concrete sample being boiled 36 hours in advance, and in corrosive medium, stand limit saturation degree.Above-mentioned concrete sample also standing under the condition of constant corrosive medium effect is loaded.
Preparing chemically stable concrete specific examples from the mixture of proposed various components is listed below:
Example 1
By stirring 920 kilograms obsidian, 460 kilograms quartz sand, 506 kilograms of granite stones, the silicon-dioxide of 138 kilograms of crystallization distortion prepares the mixture of dried ingredients.The mixture that obtains mixes with liquid glass, and the amount of liquid glass is 276 kilograms.
For preparing the mixture that chemically stable concrete prepares following component (quality %) is arranged:
-liquid glass 12
-obsidian 40
The silicon-dioxide 6 of-crystallization distortion
-rubble 22
-Sha 20
Mixture is placed in the model and stood hydrothermal treatment consists 10 hours under 0.6MPa pressure.
The concrete cubes sample form that obtains stands physics-mechanical testing, the results are shown in the table.
Example 2
To stir 805 kilograms obsidian, 575 kilograms quartz sand, 552 kilograms of granite stones, the way of the silicon-dioxide of 23 kilograms of crystallizations distortion prepares the mixture of dried ingredients, and the mixture that obtains is mixed until obtaining fully uniform mixture with 345 kilograms liquid glass.
For preparing the mixture that chemically stable concrete prepares following component (quality %) is arranged:
-liquid glass 15
-obsidian 35
The silica 1 of-crystallization distortion
-rubble 24
-sand 25
Mixture is placed in the model, carries out hydrothermal treatment consists 6 hours under 0.8MPa pressure.
The concrete that obtains stands physics-mechanical testing with the cubes sample form, the results are shown in the table.
Example 3
To stir 805 kilograms perlite, 506 kilograms quartz sand, 690 kilograms quartzy rubble, the kaolinic method of 115 kilograms mud stone structure prepares the mixture of dried ingredients, and the liquid glass of the mixture that obtains and 184 kilograms is mixed until becoming mixture fully uniformly.
For preparing the ready mixture of chemically stable concrete following component (quality %) is arranged:
-liquid glass 8
-perlite 35
The kaolin 5 of-mud stone structure
-rubble 30
-Sha 22
Mixture is placed in the model, stands hydrothermal treatment consists 10 hours under 0.9MPa pressure.
The concrete sample of the cube shaped that obtains stands physics-mechanical testing, the results are shown in the table.
Example 4
To stir 690 kilograms of perlites, 575 kilograms of quartz sands, 736 kilograms of quartzy rubbles, the kaolinic method of 23 kilograms of mud stone structures prepares the mixture of dried ingredients, and the liquid glass of the mixture that obtains and 276 kilograms is mixed until becoming mixture fully uniformly.
The mixture of preparing for the chemically stable concrete of preparation has following component (quality %):
-liquid glass 12
-perlite 30
The kaolin 1 of-mud stone structure
-rubble 32
-Sha 25
Mixture is placed in the model, stands hydrothermal treatment consists 8 hours under 0.8MPa pressure.
The cuboidal concrete sample that obtains stands physics-mechanical testing, the results are shown in the table.
Example 5
Stirring 782 kilograms of perlites, 460 kilograms of quartz sands, 529 kilograms of diabase rubbles, the silicon-dioxide of 92 kilograms of crystallization distortion, the kaolinic method of 92 kilograms of mud stone structures prepares the mixture of dried ingredients.The liquid glass of the mixture that obtains and 345 kilograms is mixed until becoming mixture fully uniformly.
For preparing the mixture that chemically stable concrete prepares following component (quality %) is arranged:
-liquid glass 15
-perlite 34
The silicon-dioxide 4 of-crystallization distortion
The kaolin 4 of-mud stone structure
-rubble 23
-Sha 20
Mixture is placed in the model, stands hydrothermal treatment consists 6 hours under 1.0MPa pressure.
The cube shaped concrete sample that obtains stands physics-mechanical testing, the results are shown in the table.
Example 6
Stirring 736 kilograms of perlites, 460 kilograms of quartz sands, 598 kilograms of diabase rubbles, the silicon-dioxide of 46 kilograms of crystallization distortion, the kaolinic way of 4.6 kilograms of mud stone structures prepares the mixture of dried ingredients.The liquid glass of the mixture that obtains and 414 kilograms is mixed until becoming mixture fully uniformly.
For preparing the mixture that chemically stable concrete prepares following component (quality %) is arranged:
-liquid glass 18
-perlite 32
The silicon-dioxide 2 of-crystallization distortion
The kaolin 2 of-mud stone structure
-rubble 26
-Sha 20
Mixture is placed in the model, stands hydrothermal treatment consists 6 hours under 1.2MPa pressure.
The cubes concrete sample that obtains stands physics-mechanical testing, the results are shown in the table.
Example 7
Stirring 920 kilograms of perlites, 414 kilograms of quartz sands, the way of 754 kilograms of granite stones prepares the mixture of dried ingredients.The liquid glass of the mixture that obtains and 184 kilograms, and 24 kilograms trimeric cyanamide is mixed until becoming mixture fully uniformly.
For preparing the mixture that chemically stable concrete prepares following component (quality %) is arranged:
-liquid glass 8
-perlite 40
-trimeric cyanamide 1
-rubble 33
-Sha 18
Mixture is placed in the model, stands hydrothermal treatment consists 8 hours under 0.8MPa pressure.
Resulting cubes concrete sample stands physics-mechanical testing, the results are shown in the table.
Example 8
Stirring 690 kilograms of perlites, 621 kilograms of quartz sands, the way of 570.4 kilograms of granite stones prepares the mixture of dried ingredients.The liquid glass of the mixture that makes and 414 kilograms, and 4.6 kilograms trimeric cyanamide is mixed until becoming mixture fully uniformly.
For preparing the mixture that chemically stable concrete prepares following component (quality %) is arranged:
-liquid glass 18
-perlite 30
-trimeric cyanamide 0.2
-rubble 24.8
-Sha 27
Mixture is placed in the model, stands hydrothermal treatment consists 10 hours under 0.6MPa pressure.
Resulting cubes concrete sample stands physics-mechanical testing, the results are shown in the table.
Example 9
With the obsidian that stirs 920 kilograms, 469.2 kilograms of quartz sands, 621 kilograms of diabase rubbles, the way of the silicon-dioxide of 92 kilograms of crystallization distortion prepares the mixture of dried ingredients.The mixture of gained and 184 kilograms of liquid glasses, and trimeric cyanamide is mixed until becoming uniform mixture.
For preparing the mixture that chemically stable concrete prepares following component (quality %) is arranged:
-liquid glass 8
-obsidian 40
The silicon-dioxide 4 of-crystallization distortion
-trimeric cyanamide 0.6
-rubble 27
-Sha 20.4
Mixture is placed in the model, stands hydrothermal treatment consists 9 hours under 0.7MPa pressure.
Resulting cubes concrete sample stands physics-mechanical testing, the results are shown in the table.
Example 10
With 690 kilograms of obsidians of stirring, 529 kilograms of quartz sands, 588.8 kilograms of diabase rubbles, the way of the silicon-dioxide of 46 kilograms of crystallization distortion prepares the mixture of dried ingredients.The mixture of gained and 414 kilograms of liquid glasses and trimeric cyanamide are mixed until becoming uniform mixture.
For preparing the mixture that chemically stable concrete prepares following component (quality %) is arranged:
-liquid glass 18
-obsidian 30
The silicon-dioxide 2 of-crystallization distortion
-trimeric cyanamide 0.4
-rubble 25.6
-Sha 23
Mixture is placed in the model, stands hydrothermal treatment consists 7 hours under 0.9MPa pressure.
Resulting cubes concrete sample stands physics-mechanical testing, the results are shown in the table.
Example 11
With stirring 920 kilograms of perlites, 414 kilograms of quartz sands, 584.2 the quartzy rubble of kilogram, the silicon-dioxide of 92 kilograms of crystallization distortion, the kaolinic way of 92 kilograms of feldspar structures prepares the mixture of dried ingredients, and the trimeric cyanamide of the mixture of gained and 184 kilograms of liquid glasses and 13.8 kilograms is mixed until becoming uniform mixture.
For preparing the mixture that chemically stable concrete prepares following component (quality %) is arranged:
-liquid glass 8
-perlite 40
The silicon-dioxide 4 of-crystallization distortion
-trimeric cyanamide 0.6
The kaolin 4 of-feldspar structure
-rubble 25.4
-Sha 18
Be placed in the mixture that makes in the model and under 1.0MPa pressure, stood hydrothermal treatment consists 7 hours.
Resulting cubes concrete sample stands physics-mechanical testing, the results are shown in the table.
Example 12
To stir 690 kilograms of perlites, 478.4 kilogram quartz sand, 616.4 the quartzy rubble of kilogram, the silicon-dioxide of 46 kilograms of crystallization distortion, the kaolinic way of 40 kilograms of feldspar structures prepares the mixture of dried ingredients, the water glass of the mixture of gained and 414 kilograms, and 9.2 kilograms trimeric cyanamide is mixed until becoming uniform mixture.
For preparing the mixture that chemically stable concrete prepares following component (quality %) is arranged:
-liquid glass 18
-perlite 30
The silicon-dioxide 2 of-crystallization distortion
-trimeric cyanamide 0.4
The kaolin 2 of-feldspar structure
-rubble 26.8
-Sha 20.8
Mixture is placed in the model, under 0.8MPa pressure, stood hydrothermal treatment consists 8 hours.
Resulting cubes concrete sample stands physics-mechanical testing, the results are shown in the table.
Table
Instance number intensity, the MPa stability factor
Among the anti-Zhang Zaishui of resistance to compression in 20% sulfuric acid
1 2 3 4 5
1 100 8.7 0.86 0.94
2 100 8.5 0.86 0.94
3 130 11.8 0.92 0.95
4 135 12.1 0.94 0.96
5 130 11.8 0.92 0.95
6 135 12.1 0.94 0.96
7 135 12.1 0.94 0.95
8 140 12.3 0.95 0.96
9 130 10.6 0.94 0.95
10 130 8.3 0.95 0.96
11 135 12.1 0.94 0.95
12 140 12.3 0.95 0.96
Continuous table
The lasting ultimate compression strength level of example water-absorbent acid penetration elastic concrete
Number %, the millimeter modulus-
MPa at air at water 20% 5%
In in the sulfuric acid in the sodium hydroxide
1 6 7 8 9 10 11 12
1 5.0 15 55000 0.75 0.65 0.50 0.20
2 4.9 15 54000 0.75 0.65 0.55 0.20
3 4.9 33 54000 0.75 0.72 0.70 0.36
4 4.8 35 56000 0.75 0.75 0.72 0.38
5 4.9 14 54000 0.80 0.72 0.70 0.37
6 4.8 15 56000 0.80 0.75 0.72 0.38
7 3.3 24 55000 0.75 0.86 0.72 0.20
8 3.4 24 56000 0.75 0.85 0.71 0.20
9 3.3 14 54000 0.80 0.86 0.72 0.20
10 3.4 15 55000 0.80 0.85 0.71 0.20
11 3.3 14 55000 0.80 0.90 0.78 0.38
12 3.4 15 56000 0.80 0.90 0.77 0.38
Claims (5)
1, the chemically stable concrete mixture of a kind of preparation, it contains liquid glass, disperse very thin volcanics tart hydrated glass, soda acid/stable stopping composition, it is characterized in that it contains the silicon-dioxide of crystallization distortion and/or the kaolin of feldspar structure, and/or distortion such as trimeric cyanamide additive, the ratio of its component following (quality %):
-liquid glass 8-18
The acidic aqueous glass 30-40 of volcanics that-dispersion is very thin
The additive of distortion:
The silica 1-6 of-crystallization distortion
And/or the kaolin 1-5 of feldspar structure
And/or trimeric cyanamide 0.2-1.0
The stopping composition to 100 of-ph stability.
2,, it is characterized in that it contains obsidian and replace and disperse the very thin acidic aqueous glass of volcanics and following component (quality %) is arranged by the described mixture of claim 1:
-liquid glass 12-15
-obsidian 35-40
The silica 1-6 of-crystallization distortion
The stopping composition to 100 of-ph stability
3, by the described mixture of claim 1, it is characterized in that it contains perlite, replace and disperse the very thin acidic aqueous glass of volcanics, and following component (quality %) is arranged:
-liquid glass 8-12
-perlite 30-35
The kaolin 1-5 of-feldspar structure
The stopping composition to 100 of-ph stability
4, by the described mixture of claim 1, it is characterized in that it has component (quality %):
-liquid glass 15-18
-perlite 32-34
The silicon-dioxide 2-4 of-crystallization distortion
The kaolin 2-4 of-feldspar structure
The stopping composition to 100 of-ph stability
5, by claim 2,3,4 described mixtures is characterized in that it contains trimeric cyanamide, and its amount is the 0.4-0.6% of described mixture.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08704558A GB2201410A (en) | 1987-03-10 | 1987-02-26 | Mix for producing chemically resistant concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87102274A true CN87102274A (en) | 1988-10-12 |
Family
ID=25742300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87102274 Pending CN87102274A (en) | 1987-02-26 | 1987-03-25 | Prepare chemically stable concrete mixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87102274A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417345A (en) * | 2011-07-26 | 2012-04-18 | 张尚坤 | Special ceramics capable of accelerating white liquor aging and preparation technology thereof |
-
1987
- 1987-03-25 CN CN 87102274 patent/CN87102274A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417345A (en) * | 2011-07-26 | 2012-04-18 | 张尚坤 | Special ceramics capable of accelerating white liquor aging and preparation technology thereof |
| CN102417345B (en) * | 2011-07-26 | 2013-07-17 | 张尚坤 | Special ceramics capable of accelerating white liquor aging and preparation technology thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1054590C (en) | Gypsum/cellulosic fibre acoustical tile compsn. | |
| CN1096880C (en) | Gel composition containing carbonaceous compound | |
| CN1081607C (en) | Aqueous suspension of silicon dioxide, aluminum sulfate or white alum, its prepn. and application | |
| CN1048678C (en) | Method for jet of concrete or mortar | |
| CN1253536A (en) | Adhesive composition | |
| CN1543444A (en) | Low density accelerant and strength enhancing additive for cementitious products and methods of using same | |
| CN1030446C (en) | Welan gum in cement compositions | |
| CN1495146A (en) | Universal oil well cement additive and method | |
| CN1119011A (en) | Cement type kneaded molded article having high bending strength and compressive strength, and method of production thereof | |
| CN1015168B (en) | Aminoarylslfonic acid-phenol-formaldehyde condensate and concrete admixture comprising same | |
| CN1011046B (en) | Inoculant for gray pig iron | |
| CN1525947A (en) | Hydraulic composition | |
| CN1244644C (en) | Surface treated calcium carbonate filling process for producing the same filling and resin composition containing the same filling | |
| CN1898178A (en) | Dense mortar based on binary ettringite binder, comprising at least one poly(alkylene oxide) comb polymer and at least one structuring organic resin | |
| CN1736954A (en) | Blast furnace mixer casting material | |
| CN1603547A (en) | Wall surface decoration material | |
| CN1219812C (en) | Polymer emulsion | |
| CN1795078A (en) | Vitrified grinding stone and method of manufacturing the same | |
| CN101037576A (en) | Formaldehyde elimination agent and preparation method thereof | |
| CN1807051A (en) | Reinforced concrete resin slurry casting pipe and method for manufacturing the same | |
| CN1834056A (en) | Decorative material and prepn. thereof | |
| CN1884433A (en) | Energy-storing type long-afterglow light-emitting materials with fluorescence property and method for preparing same | |
| CN87102274A (en) | Prepare chemically stable concrete mixture | |
| CN1019190B (en) | White ceramic mfg. process | |
| CN1403522A (en) | Composite adhesive specially for heat insulating polystyrene outer-wall board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |