CN106854064A - High rheological variation concrete - Google Patents
High rheological variation concrete Download PDFInfo
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- CN106854064A CN106854064A CN201510906047.9A CN201510906047A CN106854064A CN 106854064 A CN106854064 A CN 106854064A CN 201510906047 A CN201510906047 A CN 201510906047A CN 106854064 A CN106854064 A CN 106854064A
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- China
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- concrete
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- present
- rheological variation
- glycosaminoglycan
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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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to a kind of high rheological variation concrete, belong to technical field of concrete.The technical problems to be solved by the invention are to provide a kind of high rheological variation concrete.High rheological variation concrete of the present invention is made up of the component of following weight proportion：0.95-1.05 parts of poly- naphthalene formaldehyde sulfonate salt, glycosaminoglycan 0.005-0.015 parts, glucan 0.005-0.015 parts, P.052.5 cement 90-110 parts, stone 210-230 parts, river sand 120-140 parts.The rheological characteristic better performances of high rheological variation concrete of the present invention, the slump and autgmentability of fresh concrete is high, and volume stability is preferable, and does not influence the structure durability of concrete, has broad application prospects.
Description
Technical field
The present invention relates to a kind of high rheological variation concrete, belong to technical field of concrete.
Background technology
With developing rapidly for concrete industry, high performance concrete turns into the leading of concrete development.High performance concrete requirement
Fresh concrete has high workability, such as self-compacting high performance concrete.The development of this kind of concrete has not only adapted to contemporary coagulation
Geotechnological journey ultra-largeization, the requirement for complicating, and for the realization of intensive reinforcement structure design provides guarantee.It is even more important
, its labour intensity for reducing workman, it is to avoid the construction hidden danger brought due to vibrating leakiness, accelerate construct into
Degree, it is ensured that construction quality.
At present, for the rheological characteristic of improvement concrete, mainly there are two methods.A kind of method improves compound to add tackifier
Resist separate ability；Another method improves the separating resistance of compound by improving slurry ratio.Second method is to original
The requirement of material is high, and because paste content is improved, easily causes Shrinkage Cracking of Concrete, influences the structure durability of concrete.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of high rheological variation concrete.
High rheological variation concrete of the present invention is made up of the component of following weight proportion：0.95-1.05 parts of poly- naphthalene formaldehyde sulfonate salt,
Glycosaminoglycan 0.005-0.015 parts, glucan 0.005-0.015 parts, P.052.5 cement 90-110 parts, stone 210-230
Part, river sand 120-140 parts.
Further, the present invention improves rheological characteristic concrete, is preferably made up of the component of following weight proportion：Poly- naphthaldehyde sulfonic acid
0.99 part of sodium salt, 0.01 part of glycosaminoglycan, 0.01 part of glucan, P.052.5 100 parts of cement, 224 parts of stone, river sand
130 parts.
Wherein, the molecular weight of above-mentioned glycosaminoglycan is preferably 300-350 ten thousand.
The rheological characteristic better performances of high rheological variation concrete of the present invention, the slump and autgmentability of fresh concrete is high, volume stability
Property preferably, and do not influence the structure durability of concrete, have broad application prospects.
Specific embodiment
High rheological variation concrete of the present invention is made up of the component of following weight proportion：0.95-1.05 parts of poly- naphthalene formaldehyde sulfonate salt,
Glycosaminoglycan 0.005-0.015 parts, glucan 0.005-0.015 parts, P.052.5 cement 90-110 parts, stone 210-230
Part, river sand 120-140 parts.
Further, the present invention improves rheological characteristic concrete, is preferably made up of the component of following weight proportion：Poly- naphthaldehyde sulfonic acid
0.99 part of sodium salt, 0.01 part of glycosaminoglycan, 0.01 part of glucan, P.052.5 100 parts of cement, 224 parts of stone, river sand
130 parts.
Wherein, the molecular weight of above-mentioned glycosaminoglycan is preferably 300-350 ten thousand.
Specific embodiment of the invention is further described with reference to embodiment, does not therefore limit the present invention to institute
Among the scope of embodiments stated.
The molecular weight of glycosaminoglycan is 3,200,000 in following embodiments, and cobble-stone diameter is 5-20mm, and river sand modulus of fineness is 2.8.
The preparation of the high rheological variation concrete of the present invention of embodiment 1
Poly- naphthalene formaldehyde sulfonate salt 9.7kg, glycosaminoglycan 0.15kg, glucan 0.15kg are taken, P.052.5 cement 1000kg,
Stone 2240kg, river sand 1300kg, water 410kg, mix, and obtain final product.
The preparation of the high rheological variation concrete of the present invention of embodiment 2
Poly- naphthalene formaldehyde sulfonate salt 9.9kg, glycosaminoglycan 0.1kg, glucan 0.1kg are taken, P.052.5 cement 1000kg,
Stone 2240kg, river sand 1300kg, water 410kg, mix, and obtain final product.
The preparation of the high rheological variation concrete of the present invention of embodiment 3
Take poly- naphthalene formaldehyde sulfonate salt 10.5kg, glycosaminoglycan 0.08kg, glucan 0.12kg, cement 1000kg, stone
2240kg, river sand 1300kg, water 410kg, mix, and obtain final product.
Concrete performance prepared by embodiment of the present invention 1-3 is determined, while the concrete performance prepared with ordinary cement is contrasted,
Result is as shown in table 1.
The concrete performance examination result of table 1
| The slump (mm) | Divergence (mm) | Bleeding rate (%) | U-shaped instrument (△ h, mm) | |
| Embodiment 1 | 255 | 662 | 0 | 23 |
| Embodiment 2 | 260 | 665 | 0 | 25 |
| Embodiment 3 | 252 | 661 | 0 | 22 |
| Normal concrete | 200 | 610 | 0 | 23 |
Claims (3)
1. high rheological variation concrete, it is characterised in that be made up of the component of following weight proportion：Poly- naphthalene formaldehyde sulfonate salt
0.95-1.05 parts, glycosaminoglycan 0.005-0.015 parts, glucan 0.005-0.015 parts, P.052.5 cement 90-110 parts,
Stone 210-230 parts, river sand 120-140 parts.
2. high rheological variation concrete according to claim 1, it is characterised in that be made up of the component of following weight proportion：It is poly-
0.99 part of naphthalene formaldehyde sulfonate salt, 0.01 part of glycosaminoglycan, 0.01 part of glucan, P.052.5 100 parts of cement, stone 224
Part, 130 parts of river sand.
3. high rheological variation concrete according to claim 1 and 2, it is characterised in that：The molecular weight of the glycosaminoglycan is
300-350 ten thousand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510906047.9A CN106854064A (en) | 2015-12-09 | 2015-12-09 | High rheological variation concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510906047.9A CN106854064A (en) | 2015-12-09 | 2015-12-09 | High rheological variation concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106854064A true CN106854064A (en) | 2017-06-16 |
Family
ID=59132750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510906047.9A Pending CN106854064A (en) | 2015-12-09 | 2015-12-09 | High rheological variation concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106854064A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1946652A (en) * | 2004-04-27 | 2007-04-11 | 赫尔克里士公司 | Tile cement mortars using water retention agents |
| CN102992718A (en) * | 2012-11-26 | 2013-03-27 | 肥西县皖西水泥制品有限公司 | High-toughness inspection well concrete and method for preparing same |
| CN103553454A (en) * | 2013-10-10 | 2014-02-05 | 桂林理工大学 | High performance concrete with steel slag as admixture and aggregate and preparation method thereof |
| CN103755256A (en) * | 2013-12-31 | 2014-04-30 | 广西超星太阳能科技有限公司 | Inorganic porous high-strength thermal insulation material |
| CN106116354A (en) * | 2016-06-28 | 2016-11-16 | 蚌埠市方阵商品混凝土有限公司 | A kind of crack resistence concrete |
-
2015
- 2015-12-09 CN CN201510906047.9A patent/CN106854064A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1946652A (en) * | 2004-04-27 | 2007-04-11 | 赫尔克里士公司 | Tile cement mortars using water retention agents |
| CN102992718A (en) * | 2012-11-26 | 2013-03-27 | 肥西县皖西水泥制品有限公司 | High-toughness inspection well concrete and method for preparing same |
| CN103553454A (en) * | 2013-10-10 | 2014-02-05 | 桂林理工大学 | High performance concrete with steel slag as admixture and aggregate and preparation method thereof |
| CN103755256A (en) * | 2013-12-31 | 2014-04-30 | 广西超星太阳能科技有限公司 | Inorganic porous high-strength thermal insulation material |
| CN106116354A (en) * | 2016-06-28 | 2016-11-16 | 蚌埠市方阵商品混凝土有限公司 | A kind of crack resistence concrete |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170616 |
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| WD01 | Invention patent application deemed withdrawn after publication |