CN1931773A - Pumped concrete with fly ash and heavy high titanium slag - Google Patents
Pumped concrete with fly ash and heavy high titanium slag Download PDFInfo
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- CN1931773A CN1931773A CNA200610021996XA CN200610021996A CN1931773A CN 1931773 A CN1931773 A CN 1931773A CN A200610021996X A CNA200610021996X A CN A200610021996XA CN 200610021996 A CN200610021996 A CN 200610021996A CN 1931773 A CN1931773 A CN 1931773A
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- concrete
- fly ash
- slag
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- titanium
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention discloses one kind of pumped concrete with fly ash and heavy high titanium slag. The concrete is compounded through mixing heavy high titanium slag sand and stone as the aggregate, fly ash, cement, admixture and water. The amount of fly ash is 10-40 wt% of the cement, the heavy high titanium slag sand and stone accounts for 35-45 wt%, and the admixture is selected from naphthalene, amino sulfonate, propyl carboxylic acid or other water reducing agent. The concrete has high strength and utilization of blast furnace slag.
Description
Technical field
The invention belongs to building materials technology field, relate to a kind of concrete, particularly a kind of pumped concrete with fly ash and heavy high titanium slag.
Background technology
Concrete is the main raw of modern project structure, about 1,000,000,000 m of the annual concrete amount of China
3, occupy first place in the world, along with China's operating technique improve constantly and more and more city to the environmental requirement of construction process, many civil engineerings have been extensive use of pump concrete.
The research and the utilization of blast furnace slag just set about by unit such as Wuhan Iron and Steel Plant, Shoudu Iron and Steel Co from the sixties, climb steel and carried out the research that blast furnace slag fully utilizes in succession, and issued DB/5104Q13001-88 " concrete high-titanium dry slag crushing technique condition " standard in conjunction with the high characteristics of steel climbing high slag titanium content in late 1970s.Since 2004, climb steel and carried out the further investigation of high-titanium blast furnace slag being made concrete aggregate, and issued corresponding high-titanium dry slag sand, high-titanium dry slag rubble standard and high-titanium dry slag concrete construction technology rules.Rules have been made strict regulation to production, the use of high-titanium dry slag sandstone.
The aggregate that coal ash powder full mineral slag concrete of the prior art (notification number CN1080625A, application number 92104810.6) uses is the ordinary blast slag, is not the said high-titanium dry slag of the present invention.Both materials are formed and performance has gap.Because ordinary blast slag titaniferous amount is low, experiment showed, when concrete batching its poor stability, and because its loose volume weight (1300--1350kg/m
3) low, so be unfavorable for preparing high grade strong concrete; Simultaneously, particularly requirement of strength is more and more higher to concrete performance for modern civil engineering structure, therefore, seeks to prepare an urgent demand that strong concrete becomes modern project.
Summary of the invention
, the invention provides and a kind ofly utilize high-titanium dry slag to gather materials fully and the pumpable flyash whole-high valent titanium slag concrete of solid waste material such as flyash preparation the high-intensity demand of concrete at the civil engineering structure, replace the natural sand stone concrete.
Technical scheme is that described pumped concrete with fly ash and heavy high titanium slag by standard JGJ55 design mixture proportion, is that the concrete thickness is gathered materials with high-titanium dry slag sand, slag stone, mixes flyash, cement, admixture and water mixed preparing again.
Each constituent materials of pumped concrete with fly ash and heavy high titanium slag and consumption are cement 280～540kg/m
3, flyash 70～160kg/m
3, water 175～180kg/m
3Wherein cement consumption increases along with the rising of strength grade of concrete that (when being C20 as strength grade of concrete, cement consumption can be 280～300kg/m
3During C60, cement consumption can be 500～540kg/m
3); The flyash consumption is decided on cement consumption, is 10～40% (strength grade of concrete is high more, and flyash accounts for cement consumption should be low more) of cement consumption; The consumption of high-titanium dry slag sand and high-titanium dry slag rubble calculates by sand coarse aggregate ratio in the fixing back of other materials consumption, and sand coarse aggregate ratio is 35～45%, looks the rising of strength grade of concrete and reduces; Admixture can be selected multiple admixtures with water-reduction such as naphthalene system, sulfamate system and third carboxylic acid for use, also can select the water reducer that is composited by multiple water reducer for use, also can select the pumping agent of other compositions such as including retardant, air entrapment agent for use; The admixture dosage of solid state powder shape is generally 0.8～1.2% of cement consumption, and the liquid state admixture dosage is 1.4～2.0% of a cement consumption, and mainly the water-reducing rate with water reducer calculates.
Because high-titanium dry slag coarse, the porous of gathering materials, and the high-titanium dry slag sand loose volume weight for guaranteeing concrete workability, can increase sand coarse aggregate ratio 3～6% than normal concrete than the natural sand height when sand coarse aggregate ratio is calculated, by the definite best sand coarse aggregate ratio of test.After flyash mixes wherein, can fill the hole of high-titanium dry slag rubble, improve concrete degree of compactness, simultaneously because the effect of its secondary hydration can improve concrete later strength.
Because high-titanium dry slag titaniferous amount is higher than the ordinary blast slag far away, therefore, its stability also is higher than the ordinary blast slag, again because loose volume weight (1300--1350kg/m
3) than ordinary blast slag (1160--1180kg/m
3) height, be more conducive to prepare the above high grade of C20, strong concrete; Therefore the present invention's use range of having opened up high-titanium dry slag has solved the problem of utilizing of climbing the steel solid waste, effectively reduces the material of construction cost simultaneously, has reduced the exploitation of natural sandstone, is convenient to protect environment.
Embodiment
Now provide laboratory study and specific examples to further specify the present invention.
As follows by testing definite C30 level pumped concrete with fly ash and heavy high titanium slag proportioning:
Cement: 304kg/m
3
Flyash: 114kg/m
3
High-titanium dry slag sand: 775kg/m
3
High-titanium dry slag rubble: 1070kg/m
3
Water: 180kg/m
3
Sulfamate water reducer: 5.47kg/m
3
Under above-mentioned proportioning situation, concrete 2 hours through the time loss be 50mm, intensity reached 45.2MPa in 28 days.Facts have proved, because slag rubble, slag sand surface irregularity, the use of flyash and admixture in addition, cause the whole-high valent titanium slag pump concrete to form fine and close and have better toughness concrete interface structure, such concrete member is not easy cracking, and the prevention distress in concrete is had active effect.
C60 flyash pumped concrete with fly ash and heavy high titanium slag proportioning is as follows:
Cement 510kg/m
3
Flyash 90kg/m
3
High-titanium dry slag sand 595kg/m
3
High-titanium dry slag rubble 1100kg/m
3
Water 180kg/m
3
FDN water reducer 5.4kg/m
3
The initial slump of concrete of preparation is 190mm, is 50mm through time loss in 2 hours, 7 days intensity 61.7MPa, and intensity reached 73.6MPa in 28 days.
Climb steel 3# blast furnace 10000m
3The safe water pool engineering is built the construction of industry two project management departments by climbing the steel smelting.Placing concrete amount 2000m
3, design grade is C30P8, and this engineering all adopts full-slag pump concrete, and construction party is rented sky 1 and is dragged the pump pumping, and pumping is very smooth, and the maximum pump amount of sending per hour can reach 50m
3, concrete average intensity grade reached 38.5MPa in 28 days, and the impervious pressure of concrete sample reaches more than the 1.2MPa, adheres to specification fully.
Climb the steel smelting and build the hard coal barricade engineering in the steel coking technological transformation project of climbing of extraordinary high weir ditch project management department construction, the design strength grade of concrete is C20, and the barricade body of wall adopts nearly 1000m
3Concrete adopts the construction of high-titanium dry slag concrete pumping entirely.Its proportioning is 32.5R cement 280kg/m
3, II level flyash 120kg/m
3, high-titanium dry slag sand 989kg/m
3, high-titanium dry slag rubble (5～31.5mm) 1071kg/m
3, TF pumping agent 7.2kg/m
3, water 180kg/m
3The construction slump is 200 ± 20mm, and connection 60 drags the pump pumping in the employing, and one time pumpage reaches 200 in many ways, and stifled pump phenomenon does not take place, and it is very smooth to construct.Ultimate compression strength reached 33.1MPa in 28 days, adhered to specification.
Claims (6)
1, pumped concrete with fly ash and heavy high titanium slag, its component comprises flyash, cement, admixture and water, by standard JGJ55 design mixture proportion, it is characterized in that, be that the concrete thickness is gathered materials with high-titanium dry slag sand, slag stone.
2, pumped concrete with fly ash and heavy high titanium slag according to claim 1 is characterized in that, the flyash consumption is 10～40% of a cement consumption.
3, pumped concrete with fly ash and heavy high titanium slag according to claim 1 and 2 is characterized in that, the sand coarse aggregate ratio of calculating high-titanium dry slag sand and high-titanium dry slag stone consumption is 35～45%.
4, pumped concrete with fly ash and heavy high titanium slag according to claim 1 and 2, it is characterized in that, admixture can be selected multiple admixtures with water-reduction such as naphthalene system, sulfamate system and third carboxylic acid for use, also can select the water reducer that is composited by multiple water reducer for use, also can select the pumping agent that comprises other compositions such as being mixed with retardant, air entrapment agent for use.
5, pumped concrete with fly ash and heavy high titanium slag according to claim 3 is characterized in that, cement consumption is 280～540kg/m
3, the flyash consumption is 70～160kg/m
3, water consumption is 175～180kg/m
3
6, pumped concrete with fly ash and heavy high titanium slag according to claim 4 is characterized in that, the admixture dosage of solid state powder shape is 0.8～1.2% of a cement consumption, and the liquid state admixture dosage is 1.4～2.0% of a cement consumption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610021996XA CN1931773A (en) | 2006-09-30 | 2006-09-30 | Pumped concrete with fly ash and heavy high titanium slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610021996XA CN1931773A (en) | 2006-09-30 | 2006-09-30 | Pumped concrete with fly ash and heavy high titanium slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1931773A true CN1931773A (en) | 2007-03-21 |
Family
ID=37877820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200610021996XA Pending CN1931773A (en) | 2006-09-30 | 2006-09-30 | Pumped concrete with fly ash and heavy high titanium slag |
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|---|---|
| CN (1) | CN1931773A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329113A (en) * | 2011-07-15 | 2012-01-25 | 攀枝花学院 | Composite high titanium and dry slag pavement concrete and preparation method thereof |
| CN103541289A (en) * | 2013-11-06 | 2014-01-29 | 攀枝花环业冶金渣开发有限责任公司 | Colored high-titanium heavy slag permeable pavement brick and production method thereof |
| CN107032692A (en) * | 2016-11-17 | 2017-08-11 | 攀钢集团工程技术有限公司 | A kind of high-titanium dry slag concrete of use flyash and phosphorus slag powder dual mixing technology |
| CN108529935A (en) * | 2017-03-06 | 2018-09-14 | 北京城建银龙混凝土有限公司 | A kind of pumpable loaded concrete |
-
2006
- 2006-09-30 CN CNA200610021996XA patent/CN1931773A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329113A (en) * | 2011-07-15 | 2012-01-25 | 攀枝花学院 | Composite high titanium and dry slag pavement concrete and preparation method thereof |
| CN102329113B (en) * | 2011-07-15 | 2013-01-02 | 攀枝花学院 | Composite high titanium and dry slag pavement concrete and preparation method thereof |
| CN103541289A (en) * | 2013-11-06 | 2014-01-29 | 攀枝花环业冶金渣开发有限责任公司 | Colored high-titanium heavy slag permeable pavement brick and production method thereof |
| CN107032692A (en) * | 2016-11-17 | 2017-08-11 | 攀钢集团工程技术有限公司 | A kind of high-titanium dry slag concrete of use flyash and phosphorus slag powder dual mixing technology |
| CN108529935A (en) * | 2017-03-06 | 2018-09-14 | 北京城建银龙混凝土有限公司 | A kind of pumpable loaded concrete |
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