CN103553456A - Self-compaction high-performance concrete for high-speed rail construction - Google Patents
Self-compaction high-performance concrete for high-speed rail construction Download PDFInfo
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- CN103553456A CN103553456A CN201310480245.4A CN201310480245A CN103553456A CN 103553456 A CN103553456 A CN 103553456A CN 201310480245 A CN201310480245 A CN 201310480245A CN 103553456 A CN103553456 A CN 103553456A
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- 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
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Abstract
The invention discloses a self-compaction high-performance concrete for high-speed rail construction. The concrete comprises the following ingredients: by weight, 100 parts of cement, 20-150 pars of fly ash, 500-700 parts of sand, 350-600 parts of cobblestone, 0.1-3 parts of water-absorbent resin, 5-40 parts of a polymer emulsion, 1-12 parts of aluminoferrite, 3-5 parts of coumarone resin sodium sulfonate, 10-90 parts of water, 5-50 parts of steel slag, 1-2 parts of modified sulfonated lignin, 1-2 parts of an antifreezing agent, 1-3 parts of sulfamate and 1-2 parts of an antifoaming agent. The concrete provided by the invention has good construction peaceability, is not easy for bleeding and separation, and has no crystalline-type deposit at low temperature. In addition, dosage of cement is minimized, and costs of the self-compaction concrete are reduced. Thus, it is beneficial to further popularization and application of the self-compaction concrete.
Description
Technical field
The present invention relates to high ferro correlation technique, especially a kind of self-compacting high performance concrete of building for high ferro.
Background technology
Self-compacting concrete is a kind ofly there is no External Force Acting, only relies on deadweight just can flow, and fills equably the concrete of whole model.In casting process, needing to meet has larger mobility, good stability and good fillibility.
At present, self-compacting concrete is filled the space powdered material used forming while piling up that gathers materials and is essentially the gelling material slurry that cement and flyash etc. form.Self-compacting concrete gel material content of the prior art is generally at 500kg/m
3above, cement consumption is generally at 350kg/m
3above.Cement is the main raw material(s) in self-compacting concrete gelling material glue material, and the higher meeting of cement consumption easily causes that because hydration heat of cement is too high concrete shrinkage value is bigger than normal, unfavorable to concrete Crack Control and the concrete weather resistance of raising.Cement consumption is many, and price is high, makes holding at high price of self-compacting concrete, and particularly the self-compacting concrete cost of higher-strength more than C40 is higher, and this also makes applying of self-compacting concrete be restricted.
Summary of the invention
Goal of the invention: the present invention will provide a kind of self-compacting high performance concrete of building for high ferro, to address the above problem.
Technical scheme: a kind of self-compacting high performance concrete of building for high ferro, in weight part, composed of the following components: 100 parts of cement, flyash 20-150 part, sand 500-700 part, stone 350-600 part, water-absorbing resin 0.1-3 part, polymer emulsion 5-40 part, ferro-aluminate 1-12 part, cumarone resin sodium sulfonate 3-5 part, water 10-90 part, slag 5-50 part, modified lignin mahogany sulfonate 1-2 part, frostproofer 1-2 part, sulfamate 1-3, defoamer 1-2 part.
Described cumarone resin sodium sulfonate by 160-185 ℃ of cut of coal tar in polymerization, sulfonation, dilution, alkali and obtain.
Described modified lignin mahogany sulfonate is by following methods system: the sodium lignosulfonate solid of getting 100 weight parts, add water and the potassium hydroxide of 100 weight parts to be adjusted to pH=11, be heated to while stirring 60-65 ℃, add catalyzer, oxygenant is in reactor, after reaction 20-35min, be warming up to 80 ℃, add the quadrol of 5 weight part oxalic dialdehydes and 10 weight parts to carry out amination reaction 35min, then the formaldehyde that drips 10 weight parts carries out condensation reaction 45min, the sulfurous acid iron that adds 1 weight part in the product of above-mentioned reaction, the cupric nitrate of 2 weight parts, the hydrogen peroxide of 10 weight parts, the sodium alkyl sulfate of 1 weight part, the hydroxyethylmethyl-cellulose of 1 weight part, the sodium laurylsulfonate rapid stirring of the Walocel MT 20.000PV of 1 weight part and 2 weight parts 15 minutes, cooling, be drying to obtain.
The preparation method of described sulfamate is for making the melting in reactor of aniline sulfonic acid and phenol, and then splashes into formaldehyde and carry out condensation reaction, and constant temperature stirs, and splashes into alkali lye and neutralizes, discharging.
The preparation method of described ferro-aluminate is: the mineralizer of the flyash of the iron powder of the Wingdale of 70 weight parts, 15 weight parts, 30 weight parts and 5 weight parts is dropped in ball mill, being crushed to particle diameter is below 0.8mm, the mixture of acquisition is calcined in rotary kiln, calcining temperature is 1350 ℃, the gypsum with 30 weight parts mix and grinding to 5000-6000cm
2/ g.
Beneficial effect: it is good that the present invention has construction workability, is difficult for bleeding segregation, when low temperature, without advantages such as crystalline deposit things, and has reduced the consumption of cement, has reduced the cost of self-compacting concrete, is conducive to further apply self-compacting concrete.
Embodiment
Embodiment 1
The self-compacting high performance concrete of building for high ferro, in weight part, it is composed of the following components: 100 parts of cement, 20 parts, flyash, 600 parts of sands, 400 parts, stone, 3 parts of water-absorbing resins, 10 parts of polymer emulsions, 3 parts of ferro-aluminates, 5 parts of cumarone resin sodium sulfonates, 80 parts, water, 50 parts, slag, 1 part of modified lignin mahogany sulfonate, 1 part of frostproofer, 2 parts of sulfamate 3, defoamers.
Described cumarone resin sodium sulfonate by 160-185 ℃ of cut of coal tar in polymerization, sulfonation, dilution, alkali and obtain.
Described modified lignin mahogany sulfonate is by following methods system: the sodium lignosulfonate solid of getting 100 weight parts, add water and the potassium hydroxide of 100 weight parts to be adjusted to pH=11, be heated to while stirring 60-65 ℃, add catalyzer, oxygenant is in reactor, after reaction 20-35min, be warming up to 80 ℃, add the quadrol of 5 weight part oxalic dialdehydes and 10 weight parts to carry out amination reaction 35min, then the formaldehyde that drips 10 weight parts carries out condensation reaction 45min, the sulfurous acid iron that adds 1 weight part in the product of above-mentioned reaction, the cupric nitrate of 2 weight parts, the hydrogen peroxide of 10 weight parts, the sodium alkyl sulfate of 1 weight part, the hydroxyethylmethyl-cellulose of 1 weight part, the sodium laurylsulfonate rapid stirring of the Walocel MT 20.000PV of 1 weight part and 2 weight parts 15 minutes, cooling, be drying to obtain.
The preparation method of described sulfamate is for making the melting in reactor of aniline sulfonic acid and phenol, and then splashes into formaldehyde and carry out condensation reaction, and constant temperature stirs, and splashes into alkali lye and neutralizes, discharging.
The preparation method of described ferro-aluminate is: the mineralizer of the flyash of the iron powder of the Wingdale of 70 weight parts, 15 weight parts, 30 weight parts and 5 weight parts is dropped in ball mill, being crushed to particle diameter is below 0.8mm, the mixture of acquisition is calcined in rotary kiln, calcining temperature is 1350 ℃, the gypsum with 30 weight parts mix and grinding to 5000-6000cm
2/ g.
Embodiment 2
The self-compacting high performance concrete of building for high ferro, in weight part, it is composed of the following components: 100 parts of cement, 130 parts, flyash, 650 parts of sands, 350 parts, stone, 2 parts of water-absorbing resins, 20 parts of polymer emulsions, 8 parts of ferro-aluminates, 3 parts of cumarone resin sodium sulfonates, 90 parts, water, 35 parts, slag, 1.2 parts of modified lignin mahogany sulfonates, 2 parts of frostproofers, 1 part of sulfamate 2, defoamer.
Described cumarone resin sodium sulfonate by 160-185 ℃ of cut of coal tar in polymerization, sulfonation, dilution, alkali and obtain.
Described modified lignin mahogany sulfonate is by following methods system: the sodium lignosulfonate solid of getting 100 weight parts, add water and the potassium hydroxide of 100 weight parts to be adjusted to pH=11, be heated to while stirring 60-65 ℃, add catalyzer, oxygenant is in reactor, after reaction 20-35min, be warming up to 80 ℃, add the quadrol of 5 weight part oxalic dialdehydes and 10 weight parts to carry out amination reaction 35min, then the formaldehyde that drips 10 weight parts carries out condensation reaction 45min, the sulfurous acid iron that adds 1 weight part in the product of above-mentioned reaction, the cupric nitrate of 2 weight parts, the hydrogen peroxide of 10 weight parts, the sodium alkyl sulfate of 1 weight part, the hydroxyethylmethyl-cellulose of 1 weight part, the sodium laurylsulfonate rapid stirring of the Walocel MT 20.000PV of 1 weight part and 2 weight parts 15 minutes, cooling, be drying to obtain.
The preparation method of described sulfamate is for making the melting in reactor of aniline sulfonic acid and phenol, and then splashes into formaldehyde and carry out condensation reaction, and constant temperature stirs, and splashes into alkali lye and neutralizes, discharging.
The preparation method of described ferro-aluminate is: the mineralizer of the flyash of the iron powder of the Wingdale of 70 weight parts, 15 weight parts, 30 weight parts and 5 weight parts is dropped in ball mill, being crushed to particle diameter is below 0.8mm, the mixture of acquisition is calcined in rotary kiln, calcining temperature is 1350 ℃, the gypsum with 30 weight parts mix and grinding to 5000-6000cm
2/ g.
Embodiment 3
The self-compacting high performance concrete of building for high ferro, in weight part, it is composed of the following components: 100 parts of cement, 150 parts, flyash, 500 parts of sands, 450 parts, stone, 1 part of water-absorbing resin, 25 parts of polymer emulsions, 10 parts of ferro-aluminates, 3.5 parts of cumarone resin sodium sulfonates, 50 parts, water, 25 parts, slag, 1.6 parts of modified lignin mahogany sulfonates, 1.2 parts of frostproofers, 1.4 parts of sulfamate 1, defoamers.
Described cumarone resin sodium sulfonate by 160-185 ℃ of cut of coal tar in polymerization, sulfonation, dilution, alkali and obtain.
Described modified lignin mahogany sulfonate is by following methods system: the sodium lignosulfonate solid of getting 100 weight parts, add water and the potassium hydroxide of 100 weight parts to be adjusted to pH=11, be heated to while stirring 60-65 ℃, add catalyzer, oxygenant is in reactor, after reaction 20-35min, be warming up to 80 ℃, add the quadrol of 5 weight part oxalic dialdehydes and 10 weight parts to carry out amination reaction 35min, then the formaldehyde that drips 10 weight parts carries out condensation reaction 45min, the sulfurous acid iron that adds 1 weight part in the product of above-mentioned reaction, the cupric nitrate of 2 weight parts, the hydrogen peroxide of 10 weight parts, the sodium alkyl sulfate of 1 weight part, the hydroxyethylmethyl-cellulose of 1 weight part, the sodium laurylsulfonate rapid stirring of the Walocel MT 20.000PV of 1 weight part and 2 weight parts 15 minutes, cooling, be drying to obtain.
The preparation method of described sulfamate is for making the melting in reactor of aniline sulfonic acid and phenol, and then splashes into formaldehyde and carry out condensation reaction, and constant temperature stirs, and splashes into alkali lye and neutralizes, discharging.
The preparation method of described ferro-aluminate is: the mineralizer of the flyash of the iron powder of the Wingdale of 70 weight parts, 15 weight parts, 30 weight parts and 5 weight parts is dropped in ball mill, being crushed to particle diameter is below 0.8mm, the mixture of acquisition is calcined in rotary kiln, calcining temperature is 1350 ℃, the gypsum with 30 weight parts mix and grinding to 5000-6000cm
2/ g.
Embodiment 4
The self-compacting high performance concrete of building for high ferro, in weight part, it is composed of the following components: 100 parts of cement, 100 parts, flyash, 550 parts of sands, 550 parts, stone, 0.5 part of water-absorbing resin, 35 parts of polymer emulsions, 12 parts of ferro-aluminates, 4 parts of cumarone resin sodium sulfonates, 60 parts, water, 10 parts, slag, 1.8 parts of modified lignin mahogany sulfonates, 1.6 parts of frostproofers, 1.5 parts of sulfamate 1.5, defoamers.
Described cumarone resin sodium sulfonate by 160-185 ℃ of cut of coal tar in polymerization, sulfonation, dilution, alkali and obtain.
Described modified lignin mahogany sulfonate is by following methods system: the sodium lignosulfonate solid of getting 100 weight parts, add water and the potassium hydroxide of 100 weight parts to be adjusted to pH=11, be heated to while stirring 60-65 ℃, add catalyzer, oxygenant is in reactor, after reaction 20-35min, be warming up to 80 ℃, add the quadrol of 5 weight part oxalic dialdehydes and 10 weight parts to carry out amination reaction 35min, then the formaldehyde that drips 10 weight parts carries out condensation reaction 45min, the sulfurous acid iron that adds 1 weight part in the product of above-mentioned reaction, the cupric nitrate of 2 weight parts, the hydrogen peroxide of 10 weight parts, the sodium alkyl sulfate of 1 weight part, the hydroxyethylmethyl-cellulose of 1 weight part, the sodium laurylsulfonate rapid stirring of the Walocel MT 20.000PV of 1 weight part and 2 weight parts 15 minutes, cooling, be drying to obtain.
The preparation method of described sulfamate is for making the melting in reactor of aniline sulfonic acid and phenol, and then splashes into formaldehyde and carry out condensation reaction, and constant temperature stirs, and splashes into alkali lye and neutralizes, discharging.
The preparation method of described ferro-aluminate is: the mineralizer of the flyash of the iron powder of the Wingdale of 70 weight parts, 15 weight parts, 30 weight parts and 5 weight parts is dropped in ball mill, being crushed to particle diameter is below 0.8mm, the mixture of acquisition is calcined in rotary kiln, calcining temperature is 1350 ℃, the gypsum with 30 weight parts mix and grinding to 5000-6000cm
2/ g.
Embodiment 5
The self-compacting high performance concrete of building for high ferro, in weight part, it is composed of the following components: 100 parts of cement, 50 parts, flyash, 700 parts of sands, 600 parts, stone, 0.3 part of water-absorbing resin, 40 parts of polymer emulsions, 1 part of ferro-aluminate, 4.5 parts of cumarone resin sodium sulfonates, 70 parts, water, 15 parts, slag, 2 parts of modified lignin mahogany sulfonates, 1.8 parts of frostproofers, 1.8 parts of sulfamate 2.5, defoamers.
Described cumarone resin sodium sulfonate by 160-185 ℃ of cut of coal tar in polymerization, sulfonation, dilution, alkali and obtain.
Described modified lignin mahogany sulfonate is by following methods system: the sodium lignosulfonate solid of getting 100 weight parts, add water and the potassium hydroxide of 100 weight parts to be adjusted to pH=11, be heated to while stirring 60-65 ℃, add catalyzer, oxygenant is in reactor, after reaction 20-35min, be warming up to 80 ℃, add the quadrol of 5 weight part oxalic dialdehydes and 10 weight parts to carry out amination reaction 35min, then the formaldehyde that drips 10 weight parts carries out condensation reaction 45min, the sulfurous acid iron that adds 1 weight part in the product of above-mentioned reaction, the cupric nitrate of 2 weight parts, the hydrogen peroxide of 10 weight parts, the sodium alkyl sulfate of 1 weight part, the hydroxyethylmethyl-cellulose of 1 weight part, the sodium laurylsulfonate rapid stirring of the Walocel MT 20.000PV of 1 weight part and 2 weight parts 15 minutes, cooling, be drying to obtain.
The preparation method of described sulfamate is for making the melting in reactor of aniline sulfonic acid and phenol, and then splashes into formaldehyde and carry out condensation reaction, and constant temperature stirs, and splashes into alkali lye and neutralizes, discharging.
The preparation method of described ferro-aluminate is: the mineralizer of the flyash of the iron powder of the Wingdale of 70 weight parts, 15 weight parts, 30 weight parts and 5 weight parts is dropped in ball mill, being crushed to particle diameter is below 0.8mm, the mixture of acquisition is calcined in rotary kiln, calcining temperature is 1350 ℃, the gypsum with 30 weight parts mix and grinding to 5000-6000cm
2/ g.
Embodiment 6
The self-compacting high performance concrete of building for high ferro, in weight part, it is composed of the following components: 100 parts of cement, 80 parts, flyash, 630 parts of sands, 400 parts, stone, 0.1 part of water-absorbing resin, 15 parts of polymer emulsions, 5 parts of ferro-aluminates, 5 parts of cumarone resin sodium sulfonates, 75 parts, water, 35 parts, slag, 1.5 parts of modified lignin mahogany sulfonates, 2 parts of frostproofers, 2 parts of sulfamate 1.3, defoamers.
Described cumarone resin sodium sulfonate by 160-185 ℃ of cut of coal tar in polymerization, sulfonation, dilution, alkali and obtain.
Described modified lignin mahogany sulfonate is by following methods system: the sodium lignosulfonate solid of getting 100 weight parts, add water and the potassium hydroxide of 100 weight parts to be adjusted to pH=11, be heated to while stirring 60-65 ℃, add catalyzer, oxygenant is in reactor, after reaction 20-35min, be warming up to 80 ℃, add the quadrol of 5 weight part oxalic dialdehydes and 10 weight parts to carry out amination reaction 35min, then the formaldehyde that drips 10 weight parts carries out condensation reaction 45min, the sulfurous acid iron that adds 1 weight part in the product of above-mentioned reaction, the cupric nitrate of 2 weight parts, the hydrogen peroxide of 10 weight parts, the sodium alkyl sulfate of 1 weight part, the hydroxyethylmethyl-cellulose of 1 weight part, the sodium laurylsulfonate rapid stirring of the Walocel MT 20.000PV of 1 weight part and 2 weight parts 15 minutes, cooling, be drying to obtain.
The preparation method of described sulfamate is for making the melting in reactor of aniline sulfonic acid and phenol, and then splashes into formaldehyde and carry out condensation reaction, and constant temperature stirs, and splashes into alkali lye and neutralizes, discharging.
The preparation method of described ferro-aluminate is: the mineralizer of the flyash of the iron powder of the Wingdale of 70 weight parts, 15 weight parts, 30 weight parts and 5 weight parts is dropped in ball mill, being crushed to particle diameter is below 0.8mm, the mixture of acquisition is calcined in rotary kiln, calcining temperature is 1350 ℃, the gypsum with 30 weight parts mix and grinding to 5000-6000cm
2/ g.
The concrete experimental result that above-described embodiment obtains is as follows:
Table 1
Various measuring methods in table 1 all adopt industry standard or national standard, and from above-mentioned data, concrete performance of the present invention is better than prior art.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple equivalents to technical scheme of the present invention, these equivalents all belong to protection scope of the present invention.
It should be noted that in addition each the concrete technical characterictic described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible array modes.
In addition, between various embodiment of the present invention, also can carry out arbitrary combination, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (5)
1. a self-compacting high performance concrete of building for high ferro, it is characterized in that, in weight part, composed of the following components: 100 parts of cement, flyash 20-150 part, sand 500-700 part, stone 350-600 part, water-absorbing resin 0.1-3 part, polymer emulsion 5-40 part, ferro-aluminate 1-12 part, cumarone resin sodium sulfonate 3-5 part, water 10-90 part, slag 5-50 part, modified lignin mahogany sulfonate 1-2 part, frostproofer 1-2 part, sulfamate 1-3, defoamer 1-2 part.
2. the self-compacting high performance concrete of building for high ferro as claimed in claim 1, is characterized in that, described cumarone resin sodium sulfonate by 160-185 ℃ of cut of coal tar in polymerization, sulfonation, dilution, alkali and obtain.
3. the self-compacting high performance concrete of building for high ferro as claimed in claim 1, it is characterized in that, described modified lignin mahogany sulfonate is by following methods system: the sodium lignosulfonate solid of getting 100 weight parts, add water and the potassium hydroxide of 100 weight parts to be adjusted to pH=11, be heated to while stirring 60-65 ℃, add catalyzer, oxygenant is in reactor, after reaction 20-35min, be warming up to 80 ℃, add the quadrol of 5 weight part oxalic dialdehydes and 10 weight parts to carry out amination reaction 35min, then the formaldehyde that drips 10 weight parts carries out condensation reaction 45min, the sulfurous acid iron that adds 1 weight part in the product of above-mentioned reaction, the cupric nitrate of 2 weight parts, the hydrogen peroxide of 10 weight parts, the sodium alkyl sulfate of 1 weight part, the hydroxyethylmethyl-cellulose of 1 weight part, the sodium laurylsulfonate rapid stirring of the Walocel MT 20.000PV of 1 weight part and 2 weight parts 15 minutes, cooling, be drying to obtain.
4. the self-compacting high performance concrete of building for high ferro as claimed in claim 1, it is characterized in that, the preparation method of described sulfamate is for making the melting in reactor of aniline sulfonic acid and phenol, and then splash into formaldehyde and carry out condensation reaction, constant temperature stirs, splash into alkali lye and neutralize, discharging.
5. the self-compacting high performance concrete of building for high ferro as claimed in claim 1, it is characterized in that, the preparation method of described ferro-aluminate is: the mineralizer of the flyash of the iron powder of the Wingdale of 70 weight parts, 15 weight parts, 30 weight parts and 5 weight parts is dropped in ball mill, being crushed to particle diameter is below 0.8mm, the mixture of acquisition is calcined in rotary kiln, calcining temperature is 1350 ℃, the gypsum with 30 weight parts mix and grinding to 5000-6000cm
2/ g.
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| CN201310480245.4A CN103553456B (en) | 2013-10-15 | 2013-10-15 | Self-compaction high-performance concrete for high-speed rail construction |
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| CN103553456B CN103553456B (en) | 2015-03-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912060A (en) * | 2015-06-10 | 2015-09-16 | 江苏东浦管桩有限公司 | Concrete pipe pile production construction method |
| CN106186966A (en) * | 2016-07-26 | 2016-12-07 | 蚌埠市方阵商品混凝土有限公司 | A kind of concrete with excellent durability energy |
| CN106892599A (en) * | 2017-03-07 | 2017-06-27 | 河南城建学院 | A kind of preparation method of fiber concrete, the New Buffering hard shoulder using it and New Buffering hard shoulder |
| CN115093152A (en) * | 2022-06-13 | 2022-09-23 | 阳新娲石水泥有限公司 | Composite chromium-reducing grinding aid and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11221821A (en) * | 1998-02-05 | 1999-08-17 | Taiheiyo Cement Corp | Manufacture of concrete |
| CN101508546A (en) * | 2009-04-09 | 2009-08-19 | 中国铁道科学研究院铁道建筑研究所 | Novel winter cement based grouting agent for railway concrete beam support |
| CN102584139A (en) * | 2012-01-18 | 2012-07-18 | 中国铁道科学研究院金属及化学研究所 | Self-densifying concrete as well as preparation method and application thereof |
-
2013
- 2013-10-15 CN CN201310480245.4A patent/CN103553456B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11221821A (en) * | 1998-02-05 | 1999-08-17 | Taiheiyo Cement Corp | Manufacture of concrete |
| CN101508546A (en) * | 2009-04-09 | 2009-08-19 | 中国铁道科学研究院铁道建筑研究所 | Novel winter cement based grouting agent for railway concrete beam support |
| CN102584139A (en) * | 2012-01-18 | 2012-07-18 | 中国铁道科学研究院金属及化学研究所 | Self-densifying concrete as well as preparation method and application thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912060A (en) * | 2015-06-10 | 2015-09-16 | 江苏东浦管桩有限公司 | Concrete pipe pile production construction method |
| CN104912060B (en) * | 2015-06-10 | 2017-02-01 | 江苏东浦管桩有限公司 | Concrete pipe pile production construction method |
| CN106186966A (en) * | 2016-07-26 | 2016-12-07 | 蚌埠市方阵商品混凝土有限公司 | A kind of concrete with excellent durability energy |
| CN106892599A (en) * | 2017-03-07 | 2017-06-27 | 河南城建学院 | A kind of preparation method of fiber concrete, the New Buffering hard shoulder using it and New Buffering hard shoulder |
| CN106892599B (en) * | 2017-03-07 | 2019-07-05 | 河南城建学院 | A kind of fiber concrete, using its buffering hard shoulder and buffer the preparation method of hard shoulder |
| CN115093152A (en) * | 2022-06-13 | 2022-09-23 | 阳新娲石水泥有限公司 | Composite chromium-reducing grinding aid and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN103553456B (en) | 2015-03-04 |
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