CN105859224A - High-strength easily-pumped concrete prepared from hill sand - Google Patents
High-strength easily-pumped concrete prepared from hill sand Download PDFInfo
- Publication number
- CN105859224A CN105859224A CN201610317196.6A CN201610317196A CN105859224A CN 105859224 A CN105859224 A CN 105859224A CN 201610317196 A CN201610317196 A CN 201610317196A CN 105859224 A CN105859224 A CN 105859224A
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- China
- Prior art keywords
- concrete
- water
- sand
- mountain sand
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Classifications
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- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
-
- 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
Abstract
The invention discloses high-strength easily-pumped concrete prepared from hill sand. Every cubic meter of the high-strength easily-pumped concrete comprises the following materials by weight: 310-400kg of cement, 60-80kg of mineral powder, 80-110kg of coal ash, 40-60kg of silica fume, 660-720kg of hill sand of which the particle size is 0.15-4.75mm, 900-1200kg of single-grading macadam of which the particle size is 5-20mm, 20-31.5kg of a water reducing agent and 150-170kg of water. The cubic strength of the concrete disclosed by the invention is greater than 60Mpa after 28 days, the slump of the concrete is greater than 200mm, the expansion rate of the concrete is greater than 600mm, and the slump loss of the concrete for 2 hours is smaller than 20mm. By adopting the concrete, the pumping construction requirements of a super-high building of which the vertical height is greater than 100m can be met.
Description
Technical field
The present invention relates to prepare the new technical field of pump concrete, be specifically related to a kind of employing mountain sand system
Standby high strength easy pump concrete.
Background technology
Along with the rise of China's building trade is with flourish, high-rise building quantity gets more and more.These
Concrete is had high intensity to require and good service behaviour requirement by high-rise building, and can realize can be direct
Pump the demand of higher vertical height.There is abundant mountain sand Machine-made Sand in the area such as Guizhou, Chongqing, Hunan
Resource, its reserves are enriched.Scientific and reasonable is used in mountain sand Machine-made Sand in high-rise building, has
Significant economic results in society.
Mountain sand Machine-made Sand picks up from quartz mineral deposit.Through Mechanical Crushing, levigate, under the effect of mechanical force, become
Irregular multi-angular shape, forms stronger bonding force with cement slurry, strengthens the anti-folding of slurry, resists
Compressive Strength.But because of the mountain sand Machine-made Sand irregular cube of many one-tenth, rough surface, corner angle are many, and grating is poor,
Its preparation concrete relatively natural sand concrete, the slump compared with little, water requirement is big, workability is slightly worse.For
Enable mountain sand to develop in a large number and use.This mountain sand Machine-made Sand is utilized to prepare it is therefore desirable to develop
High-strength easy pump concrete.
Summary of the invention
The present invention proposes the high strength easy pumped concrete using mountain sand to prepare of a kind of low viscosity, easily pumping
Soil.The present invention adopts the following technical scheme that in order to achieve the above object
A kind of high strength easy pump concrete using mountain sand to prepare, by every m3Quality of materials contained by concrete
Meter: cement 310～400kg, breeze 60～80kg, flyash 80～110kg, silicon ash 40～60kg, grain
The simple grain level rubble that mountain sand 660～720kg that footpath is 0.15～4.75mm, particle diameter are 5～20mm
900～1200kg, water reducer 20～31.5kg, water 150～170kg.
Preferably, described cement is P.052.5R class g cement.
Preferably, described breeze is S95 level breeze.
Preferably, described flyash is II level flyash.
Preferably, described mountain grain fineness number modulus 2.3～3.0, clay content is less than 2.0%, and clod content is less than
1.0%.
Preferably, described water reducer is water-reducing rate 30% and above high efficiency water reducing agent, told water reducer bag
Include poly-carboxylic high efficiency water reducing agent.
Preferably, described water is tap water.
The invention has the beneficial effects as follows:
(1) concrete that this technology produces is the concrete of a kind of high-strength high pumping, and this concrete uses
Fine aggregate is mechanism mountain sand, and this concrete 28d cubic compressive strength is more than 60Mpa, and the slump is more than
200mm, divergence is less than 20mm more than 600mm, 2h slump-loss.Disclosure satisfy that vertical height
The pumping construction requirement of the high-rise building more than 100m.Mountain sand resource can be made full use of, accomplish because of ground
Suiting measures to different conditions, Appropriate application.Technical Reference is provided for preparation mountain sand high intensity, easy pump concrete；
(2) II level flyash and a large amount of uses of breeze, increase the use to industrial waste, improve
The workability of rock sand concrete and mobility, improve the service behaviour of rock sand concrete, reduces cement consumption,
Lower the contraction of concrete, reduce production cost.
Detailed description of the invention
The present invention is described in detail, in the signal of this present invention below in conjunction with specific embodiment and experimental example
Property embodiment and explanation be used for explaining the present invention, but not as a limitation of the invention.
Embodiment 1
A kind of high strength easy pump concrete using mountain sand to prepare, by every m3Quality of materials contained by concrete
Meter: P.052.5R class g cement 350kg, S95 level breeze 60kg, II level flyash 80kg, silicon ash 40kg,
Particle diameter be 0.15～4.75mm mountain sand 660kg (described mountain grain fineness number modulus 2.5, clay content be less than 2.0%,
Clod content is less than 1.0%), particle diameter be the poly-carboxylic of the rubble 1000kg of 5mm～20mm, water-reducing rate 30%
Acid high efficiency water reducing agent 20kg, tap water 150kg.
Table 1 C60 high-strength concrete proportioning
| Cement | Breeze | Flyash | Silicon ash | Sand | Rubble | Water reducer | Water |
| 350 | 60 | 80 | 40 | 660 | 1000 | 20 | 150 |
According to said ratio, preparing described mountain sand high intensity pump concrete according to a conventional method, this mixes
Solidifying soil service behaviour and comprcssive strength are expressed as follows:
Embodiment 2
A kind of high strength easy pump concrete using mountain sand to prepare, by every m3Quality of materials contained by concrete
Meter:
P.052.5R class g cement 380kg, S95 level breeze 80kg, II level flyash 110kg, silicon ash 60kg,
Particle diameter be 0.15～4.75mm mountain sand 720kg (described mountain grain fineness number modulus 3.0, clay content be less than 2.0%,
Clod content is less than 1.0%), particle diameter be the poly-carboxylic of the rubble 910kg of 5mm-20mm, water-reducing rate 35%
Acid high efficiency water reducing agent 31.5kg, tap water 165kg.
Table 1 C60 high-strength concrete proportioning
| Cement | Breeze | Flyash | Silicon ash | Sand | Rubble | Water reducer | Water |
| 380 | 80 | 110 | 60 | 720 | 910 | 31.5 | 165 |
According to said ratio, preparing described mountain sand high intensity pump concrete according to a conventional method, this mixes
Solidifying soil service behaviour and comprcssive strength are expressed as follows:
Experimental example 2
The concrete of the embodiment of the present invention and contrast preparation is according to " normal concrete mechanical test method
Standard " mechanical property of method test concrete in (GB/T50081-2002).
Experimental example 1
A kind of easy pumping, the intensity rock sand concrete more than 60Mpa, this concrete folk prescription consumption proportion is such as
Shown in table 1:
Table 1 C60 high-strength concrete proportioning
| Cement | Breeze | Flyash | Silicon ash | Sand | Rubble | Water reducer | Water |
| 315 | 60 | 80 | 44 | 705 | 1023 | 20.2 | 151 |
According to said ratio, preparing described mountain sand high intensity pump concrete according to a conventional method, this mixes
Solidifying soil service behaviour and comprcssive strength are expressed as follows:
Experimental example 2
A kind of easy pumping, the intensity rock sand concrete more than 60Mpa, this concrete folk prescription consumption proportion is such as
Shown in table 1:
Table 1 C60 high-strength concrete proportioning
| Cement | Breeze | Flyash | Silicon ash | Sand | Rubble | Water reducer | Water |
| 335 | 65 | 96 | 44 | 690 | 960 | 23.4 | 160 |
According to said ratio, preparing described mountain sand high intensity pump concrete according to a conventional method, this mixes
Solidifying soil service behaviour and comprcssive strength are expressed as follows:
Experimental example 3
A kind of easy pumping, the intensity rock sand concrete more than 60Mpa, this concrete folk prescription consumption proportion is such as
Shown in table 1:
Table 1 C60 high-strength concrete proportioning
| Cement | Breeze | Flyash | Silicon ash | Sand | Rubble | Additive | Water |
| 355 | 76 | 103 | 58 | 682 | 994 | 21.2 | 163 |
According to said ratio, preparing described mountain sand high intensity pump concrete according to a conventional method, this mixes
Solidifying soil service behaviour and comprcssive strength are expressed as follows:
The technical scheme provided the embodiment of the present invention above is described in detail, used herein
Principle and the embodiment of the embodiment of the present invention are set forth by specific case, saying of above example
The bright principle being only applicable to help to understand the embodiment of the present invention；General technology people simultaneously for this area
Member, according to the embodiment of the present invention, all will change in detailed description of the invention and range of application,
In sum, this specification content should not be construed as limitation of the present invention.
Claims (7)
1. the high strength easy pump concrete using mountain sand to prepare, it is characterised in that by every m3Quality of materials meter contained by concrete:
Cement 310～400kg, breeze 60～80kg, flyash 80～110kg, silicon ash 40～60kg, particle diameter be 0.15～4.75mm mountain sand 660～720kg, particle diameter be 5～20mm simple grain level rubble 900～1200kg, water reducer 20～31.5kg, water 150～170kg.
2. the as claimed in claim 1 high strength easy pump concrete using mountain sand to prepare, it is characterised in that: described cement is P.052.5R class g cement.
3. the high strength easy pump concrete using mountain sand to prepare as claimed in claim 1, it is characterised in that: described breeze is S95 level breeze.
4. the high strength easy pump concrete using mountain sand to prepare as claimed in claim 1, it is characterised in that: described flyash is II level flyash.
5. the high strength easy pump concrete using mountain sand to prepare as claimed in claim 1, it is characterised in that: described mountain grain fineness number modulus 2.3～3.0, clay content is less than 2.0%, and clod content is less than 1.0%.
6. the high strength easy pump concrete using mountain sand to prepare as claimed in claim 1, it is characterised in that: described water reducer is water-reducing rate 30% and above high efficiency water reducing agent, and told water reducer includes poly-carboxylic high efficiency water reducing agent.
7. the high strength easy pump concrete using mountain sand to prepare as claimed in claim 1, it is characterised in that: described water is tap water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610317196.6A CN105859224A (en) | 2016-05-13 | 2016-05-13 | High-strength easily-pumped concrete prepared from hill sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610317196.6A CN105859224A (en) | 2016-05-13 | 2016-05-13 | High-strength easily-pumped concrete prepared from hill sand |
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| CN105859224A true CN105859224A (en) | 2016-08-17 |
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| CN201610317196.6A Pending CN105859224A (en) | 2016-05-13 | 2016-05-13 | High-strength easily-pumped concrete prepared from hill sand |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106747100A (en) * | 2016-12-28 | 2017-05-31 | 广州大学 | A kind of high-strength mechanism rock sand concrete |
| CN107382190A (en) * | 2017-07-23 | 2017-11-24 | 四川华西绿舍建材有限公司 | A kind of low viscosity high flowability C60 super high-rise pumping concrete based on ultra fine sand compounding |
| CN107777961A (en) * | 2016-08-31 | 2018-03-09 | 北京市第五建筑工程集团有限公司 | It is easy to the High-strength self-compaction concrete of super high-rise pumping |
| CN109650820A (en) * | 2019-01-24 | 2019-04-19 | 杭州三中新型建材科技有限公司 | A kind of pump concrete and preparation method thereof |
| CN110317013A (en) * | 2019-04-29 | 2019-10-11 | 武汉理工大学 | A kind of low-quality C80 machine-made sand concrete and preparation method thereof to gather materials |
| CN110467407A (en) * | 2019-09-23 | 2019-11-19 | 陕西秦汉恒盛新型建材科技股份有限公司 | A kind of C70 mass concrete and its preparation process |
| CN110746159A (en) * | 2019-11-11 | 2020-02-04 | 十九冶成都建设有限公司 | Anti-crack pumping concrete and preparation method and pumping method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310906A (en) * | 2014-10-16 | 2015-01-28 | 成都建工成新混凝土工程有限公司 | Structural lightweight aggregate concrete |
| CN104671729A (en) * | 2014-12-29 | 2015-06-03 | 山西四建集团有限公司 | Sulfate-resistant concrete |
-
2016
- 2016-05-13 CN CN201610317196.6A patent/CN105859224A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310906A (en) * | 2014-10-16 | 2015-01-28 | 成都建工成新混凝土工程有限公司 | Structural lightweight aggregate concrete |
| CN104671729A (en) * | 2014-12-29 | 2015-06-03 | 山西四建集团有限公司 | Sulfate-resistant concrete |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107777961A (en) * | 2016-08-31 | 2018-03-09 | 北京市第五建筑工程集团有限公司 | It is easy to the High-strength self-compaction concrete of super high-rise pumping |
| CN107777961B (en) * | 2016-08-31 | 2020-07-03 | 北京市第五建筑工程集团有限公司 | High-strength self-compacting concrete easy for super high-rise pumping |
| CN106747100A (en) * | 2016-12-28 | 2017-05-31 | 广州大学 | A kind of high-strength mechanism rock sand concrete |
| CN107382190A (en) * | 2017-07-23 | 2017-11-24 | 四川华西绿舍建材有限公司 | A kind of low viscosity high flowability C60 super high-rise pumping concrete based on ultra fine sand compounding |
| CN109650820A (en) * | 2019-01-24 | 2019-04-19 | 杭州三中新型建材科技有限公司 | A kind of pump concrete and preparation method thereof |
| CN110317013A (en) * | 2019-04-29 | 2019-10-11 | 武汉理工大学 | A kind of low-quality C80 machine-made sand concrete and preparation method thereof to gather materials |
| CN110467407A (en) * | 2019-09-23 | 2019-11-19 | 陕西秦汉恒盛新型建材科技股份有限公司 | A kind of C70 mass concrete and its preparation process |
| CN110746159A (en) * | 2019-11-11 | 2020-02-04 | 十九冶成都建设有限公司 | Anti-crack pumping concrete and preparation method and pumping method thereof |
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Application publication date: 20160817 |
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