CN103570322A - High-quantity mineral powder doped underwater concrete pile - Google Patents
High-quantity mineral powder doped underwater concrete pile Download PDFInfo
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- CN103570322A CN103570322A CN201310560016.3A CN201310560016A CN103570322A CN 103570322 A CN103570322 A CN 103570322A CN 201310560016 A CN201310560016 A CN 201310560016A CN 103570322 A CN103570322 A CN 103570322A
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Abstract
The invention discloses a high-quantity mineral powder doped underwater concrete pile which comprises 240-268 kg of cement, 663-695 kg of sand, 1080-1090 kg of gravel, 179-190 kg of water, 60-61 kg of fly ash, 75-83 kg of mineral powder and 7.1-7.9 kg of water reducing agent. High-quantity mineral powder is doped for replacing cement, so that the application amount of the cement is reduced, and the slump and compressive strength of the concrete pile are obviously improved; high-quantity mineral powder doped concrete can effectively reduce the heat of hydration, and can reduce the shrinkage of concrete, which is extremely good for the reduction of concrete cracks.
Description
Technical field
The present invention relates to a kind of material of construction, particularly a kind of snag concrete of mixing a large amount breeze.
Background technology
Along with urban infrastructure, the greatly developing of industrial civilian construction.The demand of concrete, particularly commerical ready-mixed concrete is also increasing.China is concrete production the first big country, and as main material--the cement in concrete.China is also manufacture of cement the first big country, and manufacture of cement is a kind of industry of serious environment pollution, will discharge a large amount of dust and obnoxious flavour in process of production, is room temperature air CO
2one of emission source.As a kind of technology or product, economize on resources, the energy, reducing environmental pollution is also can exist and sustainable development for self.C30, C35 snag concrete are a kind of commerical ready-mixed concretes, and tradition mainly consists of by certain proportioning cement, water, sand, rubble.As will be at will reduced cement consumption or increasing water, sand, rubble, will cause the slump, ultimate compression strength not up to standard.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the invention provides a kind of snag concrete of mixing a large amount breeze, there is minimizing cement consumption, can not cause the slump, ultimate compression strength feature not up to standard.
To achieve these goals, a kind of snag concrete of mixing a large amount breeze of the present invention adopts following technical scheme: (1) admixture high efficiency water reducing agent, reduce water consumption, and reduce cement consumption; (2) the levigate Additive of admixture, replaces cement, reduces cement consumption; (3) by best material fiting ratio, form snag concrete.
The levigate Additive of concrete admixture mainly contains (1) flyash; (2) GBFS (hereinafter to be referred as breeze); (3) silica flour; (4) zeolite powder.Utilisation technology comparative maturity have flyash and a breeze.
Flyash: flyash is the canescence particle powder of collecting in the flue gas of being discharged by fuel-burning power plant coal-powder boiler, and smooth surface is ball-type, mainly exists with vitreum state.The activity of flyash, depends primarily on Vitrea content, and the content of unbodied aluminum oxide and silicon oxide, and the fineness of flyash, water demand ratio are also two active main physical factors of impact.
Granulated blast-furnace slag is the melts that iron ore is main component with Wingdale equal solvent Calucium Silicate powder that chemical combination is able to and calcium aluminosilicate in smelting process, the glass particles material forming after cold with shrend rapidly.Its main chemical compositions is CaO, SiO
2, Al
2o
3, three's total amount generally accounts for more than 90%.After processing, become breeze, its activity is higher, is Additive conventional in concrete production.
Mix the snag concrete of a large amount breeze, comprise cement, sand, rubble, water, flyash, breeze, water reducer, each is organized, 240～268 kilograms of cement: 663～695 kilograms, sand: 1080～1090 kilograms of rubbles: 179～190 kilograms, water: 60～61 kilograms, flyash: 75～83 kilograms of breezes: 7.1～7.9 kilograms of water reducers.
As preferably, each group is by weight ratio, 242 kilograms of cement: 693 kilograms, sand: 1083 kilograms of rubbles: 189 kilograms, water: 60 kilograms, flyash: 76 kilograms of breezes: 7.2 kilograms of water reducers.
As preferably, respectively organize by weight ratio for being 266 kilograms of cement: 666 kilograms, sand: 1087 kilograms of rubbles: 180 kilograms, water: 61 kilograms, flyash: 82 kilograms of breezes: 7.8 kilograms of water reducers.
In said ratio raw material, adopt P.O42.5 class g cement, II level flyash, S95 ground blast furnace slag, efficient pumping water reducer (water-reducing rate 19%), nature medium sand fineness modulus 2.6, rubble 5～31.5mm.
A kind of snag concrete beneficial effect of mixing a large amount breeze of the present invention: compare according to above starting material and proportioning and traditional C30, C35 snag concrete proportioning, see the following form:
C30 stake concrete: unit: kilogram
| ? | Cement | Sand | Rubble | Water | Flyash | Breeze | Water reducer |
| Original proportioning | 333 | 710 | 1021 | 205 | 59 | -- | 7.1 |
| Existing proportioning | 242 | 693 | 1083 | 189 | 60 | 76 | 7.2 |
C35 stake concrete: unit: kilogram
| ? | Cement | Sand | Rubble | Water | Flyash | Breeze | Water reducer |
| Original proportioning | 375 | 643 | 1050 | 200 | 65 | -- | 8.3 |
| Existing proportioning | 266 | 666 | 1087 | 180 | 61 | 82 | 7.8 |
Its performance index are as follows:
Upper table result has significantly reduced cement consumption, at the slump, ultimate compression strength tool, is significantly improved.The concrete of simultaneously large volume breeze can effectively reduce hydration heat, can reduce concrete shrinkage, highly beneficial to reducing distress in concrete.
Embodiment:
Below in conjunction with example C30, C35 snag concrete, a kind of snag concrete of mixing a large amount breeze is described in further detail.
1, select south, Huzhou P.O42.5 class g cement, its physicals sees the following form.
2, select the II of Changxing power plant level flyash, fineness tails over 17.0% through 0.045mm, needs water than 101%.
3, select Wuxi Chinsedal S95 ground blast furnace slag, fineness tails over 1.5% through 0.045mm, specific surface area 410m
2/ kg, within 28 days, activity index is than 100%.
4, select the efficient pumping water reducer of the Five Dragons, Deqing III type (water-reducing rate 19%).
5, yellow ground nature medium sand, fineness modulus 2.6, silt content is less than 1.0%.Huzhou new era 5～31.5mm continuous grading rubble for stone, crush index 7%, silt content is less than 1.0%.
C30 snag concrete: use above raw material, proportioning after metering by weight, 242 kilograms of cement: 693 kilograms, sand: 1083 kilograms of rubbles: 189 kilograms, water: 60 kilograms, flyash: 76 kilograms of breezes: 7.2 kilograms of water reducers.After proportioning is good, first water reducer is put into water and mixes, whole raw materials are delivered in strong mixing machine processed and stirred 40 seconds, then put into transport mixer for.
C35 snag concrete: use above raw material, proportioning after metering by weight, 266 kilograms of cement: 666 kilograms, sand: 1087 kilograms of rubbles: 180 kilograms, water: 61 kilograms, flyash: 82 kilograms of breezes: 7.8 kilograms of water reducers, after proportioning is good, first water reducer being put into water mixes, again whole raw materials are delivered in strong mixing machine processed and are stirred 40 seconds, then put into transport mixer for.
Claims (3)
1. a snag concrete of mixing a large amount breeze, comprise cement, sand, rubble, water, flyash, breeze, water reducer, it is characterized in that: each is organized and is by weight ratio, 240～268 kilograms of cement: 663～695 kilograms, sand: 1080～1090 kilograms of rubbles: 179～190 kilograms, water: 60～61 kilograms, flyash: 75～83 kilograms of breezes: 7.1～7.9 kilograms of water reducers.
2. a kind of snag concrete of mixing a large amount breeze according to claim 1, it is characterized in that: each is organized and is by weight ratio, 242 kilograms of cement: 693 kilograms, sand: 1083 kilograms of rubbles: 189 kilograms, water: 60 kilograms, flyash: 76 kilograms of breezes: 7.2 kilograms of water reducers.
3. a kind of snag concrete of mixing a large amount breeze according to claim 1, it is characterized in that: each is organized and is by weight ratio, 266 kilograms of cement: 666 kilograms, sand: 1087 kilograms of rubbles: 180 kilograms, water: 61 kilograms, flyash: 82 kilograms of breezes: 7.8 kilograms of water reducers.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310560016.3A CN103570322A (en) | 2013-10-30 | 2013-10-30 | High-quantity mineral powder doped underwater concrete pile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310560016.3A CN103570322A (en) | 2013-10-30 | 2013-10-30 | High-quantity mineral powder doped underwater concrete pile |
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| CN103570322A true CN103570322A (en) | 2014-02-12 |
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| CN201310560016.3A Pending CN103570322A (en) | 2013-10-30 | 2013-10-30 | High-quantity mineral powder doped underwater concrete pile |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109942259A (en) * | 2019-05-13 | 2019-06-28 | 武汉明华鸿昌新型建材有限责任公司 | A kind of C35 underwater concrete formula and preparation method thereof |
| CN110002820A (en) * | 2019-04-16 | 2019-07-12 | 郑州鑫基商品混凝土有限公司 | A kind of high performance concrete and preparation method thereof |
| CN110981316A (en) * | 2019-12-27 | 2020-04-10 | 中铁二十三局集团第一工程有限公司 | C30 underwater concrete and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999399A (en) * | 2006-01-12 | 2007-07-18 | 上海建工材料工程有限公司 | Autodensing concrete using polycarboxylic acid series additive and its technology |
| CN101003962A (en) * | 2007-01-26 | 2007-07-25 | 中国建筑工程总公司 | Pervious concrete pavement system capable of collecting rainwater |
| CN101412607A (en) * | 2007-10-19 | 2009-04-22 | 上海建工材料工程有限公司 | High flowing anticracking concrete with ultralong structure |
-
2013
- 2013-10-30 CN CN201310560016.3A patent/CN103570322A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999399A (en) * | 2006-01-12 | 2007-07-18 | 上海建工材料工程有限公司 | Autodensing concrete using polycarboxylic acid series additive and its technology |
| CN101003962A (en) * | 2007-01-26 | 2007-07-25 | 中国建筑工程总公司 | Pervious concrete pavement system capable of collecting rainwater |
| CN101412607A (en) * | 2007-10-19 | 2009-04-22 | 上海建工材料工程有限公司 | High flowing anticracking concrete with ultralong structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110002820A (en) * | 2019-04-16 | 2019-07-12 | 郑州鑫基商品混凝土有限公司 | A kind of high performance concrete and preparation method thereof |
| CN109942259A (en) * | 2019-05-13 | 2019-06-28 | 武汉明华鸿昌新型建材有限责任公司 | A kind of C35 underwater concrete formula and preparation method thereof |
| CN110981316A (en) * | 2019-12-27 | 2020-04-10 | 中铁二十三局集团第一工程有限公司 | C30 underwater concrete and preparation method thereof |
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Application publication date: 20140212 |