CN108203275A - A kind of natural fiber toughening lightweight concrete - Google Patents
A kind of natural fiber toughening lightweight concrete Download PDFInfo
- Publication number
- CN108203275A CN108203275A CN201611184949.7A CN201611184949A CN108203275A CN 108203275 A CN108203275 A CN 108203275A CN 201611184949 A CN201611184949 A CN 201611184949A CN 108203275 A CN108203275 A CN 108203275A
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- CN
- China
- Prior art keywords
- concrete
- fiber
- composite fibre
- plant
- component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/0048—Fibrous materials
- C04B20/0068—Composite fibres, e.g. fibres with a core and sheath of different material
-
- 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
- C04B2111/40—Porous or lightweight materials
-
- 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
Abstract
The present invention relates to a kind of natural fiber toughening lightweight concretes, belong to building material technical field.Natural fiber toughening lightweight concrete of the present invention, the concrete is made by solid component, extraneous component, toughened fiber, the toughened fiber is plant composite fibre, 0.1~1mm of the composite fibre length, fibrous fracture specific strength is 14~37g/dtex, and the plant composite fibre is made as follows：Plant fiber is dissolved in the thermosetting resin of melting, obtains slurries；Gained slurries are placed in melt spinning device, heating under vacuum keeps the temperature 1~3h to 80 DEG C~120 DEG C, then carries out spinning with the speed of 100~200m/min；Gained precursor is placed in high temperature furnace, under vacuum with the speed of 80~120 DEG C/min, is warming up to 450 DEG C~600 DEG C, processing 6~for 24 hours.The compression strength of concrete of the present invention is 11.2MPa~28.9Mpa.
Description
Technical field
The present invention relates to a kind of natural fiber toughening lightweight concretes, belong to building material technical field.
Background technology
Foamed concrete is by the way that foaming agent is mechanically fully foamed, and foam uniformly mixed with cement mortar,
Then cast-in-place construction or mold molding, a kind of novel light quality guarantee containing a large amount of sealed porositys formed through natural curing are carried out
Adiabator；Foamed concrete is double set continuous structures that organic binder is stirred into foaming agent, cement, flyash, mountain flour etc.
Polymer, include uniform stomata；Foamed concrete is to look for slope, ground insulating bed course for roof heat insulation, turn over beam foundation pit and fill out
It fills, the energy-saving materials such as wall pouring.
Foamed concrete is interior to have more hole in order to achieve the purpose that lightweight, however, more duct can influence to mix
Coagulate the compression strength of soil, how to obtain the foamed concrete of lightweight and high intensity be this field there is a continuing need for research subject it
One.
Invention content
The object of the present invention is to provide a kind of natural fiber toughening lightweight concrete, the compression strength of the concrete is
11.2MPa~28.9Mpa.
A kind of natural fiber toughening lightweight concrete, the concrete is by solid component, extraneous component, toughened fiber system
,
The toughened fiber is plant composite fibre, and 0.1~1mm of the composite fibre length, fibrous fracture specific strength is
14~37g/dtex, the plant composite fibre are to prepare gained by natural fiber and thermosetting resin；
The solid component is made of 40%~60% portland cement and 40%~60% flyash, and the ratio of mud is
0.4~0.8,
The extraneous component is melamine water reducing agent, coagulant and foaming agent, and the foaming agent is concrete solid group
The 0.1%~5% of point weight, the melamine water reducing agent are the 0.1%~3% of concrete solid components weight, the rush
Solidifying agent is the 0.5%~2% of concrete solid components weight.
Further, the plant composite fibre is made as follows：
Plant fiber is dissolved in the thermosetting resin of melting, obtains slurries；Gained slurries are placed in melt spinning device,
Heating under vacuum keeps the temperature 1~3h to 80 DEG C~120 DEG C, then carries out spinning with the speed of 100~200m/min；By gained original
Silk is placed in high temperature furnace, under vacuum with the speed of 80~120 DEG C/min, is warming up to 450 DEG C~600 DEG C, and processing 6~for 24 hours.
Further, the thermosetting resin is phenolic resin, Lauxite.
Further, the natural fiber is bamboo fibre, wood fibre, reed fiber.
A preferred technical solution of the invention is：
A kind of natural fiber toughening lightweight concrete, the concrete is by solid component, extraneous component, toughened fiber system
,
The toughened fiber is plant composite fibre, and the toughened fiber is plant composite fibre, and the composite fibre is long
0.4~0.75mm is spent, fibrous fracture specific strength is 23~37g/dtex；
The solid component is made of 40%~60% portland cement and 40%~60% flyash, and the ratio of mud is
0.4~0.8,
The extraneous component is melamine water reducing agent, coagulant and foaming agent, and the foaming agent is concrete solid group
The 0.1%~5% of point weight, the melamine water reducing agent are the 0.1%~3% of concrete solid components weight, the rush
Solidifying agent is the 0.5%~2% of concrete solid components weight.
The plant composite fibre is made as follows：Plant fiber is dissolved in the thermosetting resin of melting, must be starched
Liquid；Gained slurries are placed in melt spinning device, heating under vacuum keeps the temperature 1~3h to 80 DEG C~120 DEG C, then with 100~
The speed of 200m/min carries out spinning；Gained precursor is placed in high temperature furnace, under vacuum with the speed of 80~120 DEG C/min,
It is warming up to 450 DEG C~600 DEG C, processing 6~for 24 hours.
Beneficial effects of the present invention are：Natural fiber toughening lightweight concrete of the present invention, the concrete is by solid
Component, extraneous component, toughened fiber are made, the toughened fiber be plant composite fibre, the composite fibre length 0.1~
1mm, fibrous fracture specific strength are 14~37g/dtex, and the plant composite fibre is made as follows：Plant fiber is molten
In the thermosetting resin of melting, slurries are obtained；Gained slurries are placed in melt spinning device, heating under vacuum to 80 DEG C~
120 DEG C, 1~3h is kept the temperature, spinning is then carried out with the speed of 100~200m/min；Gained precursor is placed in high temperature furnace, true
With the speed of 80~120 DEG C/min under sky, it is warming up to 450 DEG C~600 DEG C, processing 6~for 24 hours.Concrete of the present invention resists
Compressive Strength is 11.2MPa~28.9Mpa.
Specific embodiment
Following non-limiting examples can make those of ordinary skill in the art be more fully understood the present invention, but not with
Any mode limits the present invention.
Test method described in following embodiments is conventional method unless otherwise specified；The reagent and material, such as
Without specified otherwise, commercially obtain.
Embodiment 1
A kind of natural fiber toughening lightweight concrete, the concrete is by solid component, extraneous component, toughened fiber system
,
The toughened fiber is plant composite fibre, and the toughened fiber is plant composite fibre, and the composite fibre is long
0.4~0.75mm is spent, fibrous fracture specific strength is 23~37g/dtex；
The solid component is made of 55% portland cement and 45% flyash, the ratio of mud 0.8,
The extraneous component is melamine water reducing agent, coagulant and foaming agent, and the foaming agent is concrete solid group
Divide the 0.5% of weight, the melamine water reducing agent is the 0.2% of concrete solid components weight, and the coagulant is coagulation
The 1% of native solid component weight.
The plant composite fibre is made as follows：Bamboo fibre is dissolved in the thermosetting resin of melting, obtains slurries；
Gained slurries are placed in melt spinning device, heating under vacuum keeps the temperature 1h to 80 DEG C, is then carried out with the speed of 200m/min
Spinning；Gained precursor is placed in high temperature furnace, under vacuum with the speed of 120 DEG C/min, 600 DEG C is warming up to, handles 12h.
The compression strength of the concrete is 28.9Mpa.
Embodiment 2
A kind of natural fiber toughening lightweight concrete, the concrete is by solid component, extraneous component, toughened fiber system
,
The toughened fiber is plant composite fibre, and the toughened fiber is plant composite fibre, and the composite fibre is long
0.4~0.75mm is spent, fibrous fracture specific strength is 23~37g/dtex；
The solid component is made of 55% portland cement and 45% flyash, the ratio of mud 0.8,
The extraneous component is melamine water reducing agent, coagulant and foaming agent, and the foaming agent is concrete solid group
Divide the 0.5% of weight, the melamine water reducing agent is the 0.2% of concrete solid components weight, and the coagulant is coagulation
The 1% of native solid component weight.
The plant composite fibre is made as follows：Plant fiber is dissolved in the thermosetting resin of melting, must be starched
Liquid；Gained slurries are placed in melt spinning device, heating under vacuum keeps the temperature 2h, then with the speed of 100m/min to 80 DEG C
Carry out spinning；Gained precursor is placed in high temperature furnace, under vacuum with the speed of 80 DEG C/min, 500 DEG C is warming up to, handles 12h.
The compression strength of the concrete is 11.2MPa.
Claims (5)
1. a kind of natural fiber toughening lightweight concrete, it is characterised in that：The concrete is by solid component, extraneous component, increasing
Tough fiber is made,
The toughened fiber is plant composite fibre, 0.1~1mm of the composite fibre length, fibrous fracture specific strength for 14~
37g/dtex, the plant composite fibre are to prepare gained by natural fiber and thermosetting resin；
The solid component is made of 40%~60% portland cement and 40%~60% flyash, the ratio of mud for 0.4~
0.8,
The extraneous component is melamine water reducing agent, coagulant and foaming agent, and the foaming agent is concrete solid components weight
Amount 0.1%~5%, the melamine water reducing agent be concrete solid components weight 0.1%~3%, the coagulant
0.5%~2% for concrete solid components weight.
2. concrete according to claim 1, it is characterised in that：The plant composite fibre is made as follows：
Plant fiber is dissolved in the thermosetting resin of melting, obtains slurries；Gained slurries are placed in melt spinning device, vacuum
Under be heated to 80 DEG C~120 DEG C, keep the temperature 1~3h, spinning then carried out with the speed of 100~200m/min；Gained precursor is put
In high temperature furnace, under vacuum with the speed of 80~120 DEG C/min, it is warming up to 450 DEG C~600 DEG C, processing 6~for 24 hours.
3. concrete according to claim 1, it is characterised in that：The thermosetting resin is phenolic resin, Lauxite.
4. concrete according to claim 1, it is characterised in that：The natural fiber is bamboo fibre, wood fibre, reed
Fiber.
5. concrete according to claim 1, it is characterised in that：The concrete is by solid component, extraneous component, toughening
Fiber is made, and the toughened fiber is plant composite fibre, and 0.4~0.75mm of the composite fibre length, fibrous fracture is than strong
It spends for 23~37g/dtex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611184949.7A CN108203275A (en) | 2016-12-20 | 2016-12-20 | A kind of natural fiber toughening lightweight concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611184949.7A CN108203275A (en) | 2016-12-20 | 2016-12-20 | A kind of natural fiber toughening lightweight concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108203275A true CN108203275A (en) | 2018-06-26 |
Family
ID=62603988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611184949.7A Pending CN108203275A (en) | 2016-12-20 | 2016-12-20 | A kind of natural fiber toughening lightweight concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108203275A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217026A (en) * | 2022-07-28 | 2022-10-21 | 石家庄铁道大学 | Integral flexible abutment and abutment-roadbed structure |
-
2016
- 2016-12-20 CN CN201611184949.7A patent/CN108203275A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217026A (en) * | 2022-07-28 | 2022-10-21 | 石家庄铁道大学 | Integral flexible abutment and abutment-roadbed structure |
| CN115217026B (en) * | 2022-07-28 | 2023-03-14 | 石家庄铁道大学 | Integral flexible abutment and abutment-roadbed structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180626 |