CN108341605A - A kind of toughening biology bagasse fibre and preparation method for building concrete - Google Patents
A kind of toughening biology bagasse fibre and preparation method for building concrete Download PDFInfo
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- CN108341605A CN108341605A CN201810162054.6A CN201810162054A CN108341605A CN 108341605 A CN108341605 A CN 108341605A CN 201810162054 A CN201810162054 A CN 201810162054A CN 108341605 A CN108341605 A CN 108341605A
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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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/18—Waste materials; Refuse organic
- C04B18/24—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork
- C04B18/248—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork from specific plants, e.g. hemp fibres
-
- 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
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- 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
- C04B20/10—Coating or impregnating
- C04B20/1055—Coating or impregnating with inorganic materials
- C04B20/1066—Oxides, Hydroxides
-
- 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
-
- 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
-
- 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 present invention relates to building material fields, disclose a kind of toughening biology bagasse fibre and preparation method for building concrete.Including following preparation process：（1）It is added in hydrochloric acid, high speed dispersion after magnetic agitation, filters after bagasse is crushed, wash, it is dry, the bagasse fibre of solution beam is made；（2）The bagasse fibre for solving beam is soaked in Nano-meter SiO_22It in dispersion liquid, after adsorption saturation, filters and is dried in vacuo, the bagasse fibre of toughening modifying is made.The present invention has stronger tensile toughness using bagasse fibre, shrinkage stress after incorporation when transferable concrete hardening, concrete strength obtained is high, good toughness, and durability is good, concrete cracking can effectively be prevented, bagasse fibre can effectively be anchored by generating gel of calcium silicate simultaneously, it is ensured that enhancing and toughening effect, and entire technical process simple possible, raw material is cheap and easy to get, has considerable economy and environmental benefit.
Description
Technical field
The present invention relates to building material field, disclose a kind of toughening biology bagasse fibre for building concrete and
Preparation method.
Background technology
Concrete is modern times most widely used and currently most manufactured construction materials, and economy and durability is its design
Original intention.Traditional concrete also has the defect that itself is difficult to overcome, as brittleness is big, from great, especially tensile strength is low, nothing
Method meets the design requirement of structure cracking resistance, durability, toughness etc..Therefore, people are dedicated to studying high-strength, lightweight, brittleness
Concrete low, durability is good.Wherein, fibre reinforced concrete is an importance in the research of concrete material.
Fibre reinforced concrete is that people is mixed in concrete substrate is shorter, discontinuous discrete fibre composition compound
Material.At present there are mainly two types of fibre reinforced concretes:First, plateau modulus short fiber reinforced concrete, it is steel to represent fiber
Fiber；Second is that low-elasticity-modulus amount short fiber reinforced concrete, it is polypropylene and nylon fiber to represent fiber.But above-mentioned fiber compares table
Area is big, the mobility of concrete can be reduced in concrete, and above-mentioned staple fibre generally existing cost is higher, the feature of environmental protection
The problem of difference, therefore try to explore new type natural fibrous material as important developing direction.
The sugarcane production period is short, production in 1 year one or fecund, abundance.Remaining major part is after sugarcane mechanical compaction
For bagasse, it is the principal by product of sugar industry, belongs to agricultural solid residue.Research and development comprehensive utilization sugarcane gesture exists
It must go, because bagasse fibre has many advantages, such as that specific surface area is small, toughness is high, is the splendid selection as toughening concrete.
Chinese invention patent application number 201610336111.9 disclose a kind of light porous self heat-preserving concrete building block and
Preparation method is to be prepared from the following raw materials in parts by weight：20 ~ 32 parts by weight of cement, 20 ~ 35 parts by weight of building waste residue,
3 ~ 18 parts by weight of Bagasse-cellulose, 10 ~ 25 parts by weight of flyash, 0.02 ~ 1 parts by weight of quick lime, 3 ~ 5.5 weight of nano aluminium oxide
Measure part, 0.2 ~ 1.6 parts by weight of nano-calcium carbonate, 1 ~ 3 parts by weight of titanium gypsum powder, 0.2 ~ 0.5 parts by weight of accelerator, foaming agent 7 ~ 15
Parts by weight, 0.1 ~ 0.5 parts by weight of water-reducing agent and appropriate amount of water.The invention efficiently uses bagasse fibre, construction waste, reduces to not
Reproducible clay resource consumption, realizes that construction waste recycles, and prepare from heavy and light, intensity using reasonable raw material proportioning
Light porous self heat-preserving concrete building block preparation method high, thermal property is good improves economic results in society.
Chinese invention patent application number 201510273692.1 discloses a kind of high tenacity concrete composition, including following
The raw material of parts by weight, 300 ~ 500 parts of cement, 30 ~ 50 parts of phosphorus slag powder, 50 ~ 150 parts of flyash, 1000 ~ 1100 parts of coarse aggregate,
600 ~ 750 parts of fine aggregate, 5 ~ 15 parts of water-reducing agent, 5 ~ 15 parts of composite fibre, 10 parts of polyvinylpyrrolidone, 130 ~ 180 parts of water.It should
High tenacity concrete has high tenacity, has larger deformability, higher tensile strength and bending strength, effectively improves structure
Globality and anti-seismic performance, ensure the impermeability and durability of structure.
It is the defects of that there are toughness is low for normal concrete in existing scheme, intensity difference, durability is poor, traditional according to above-mentioned
The technical costs for enhancing concrete using steel fibre, glass fibre, carbon fiber etc. is higher, and fiber large specific surface area itself, resistance
The problems such as hindering concrete flowability, on the other hand, the comprehensive utilization of bagasse is an important content of modern agricultural development,
Toughening concrete square face has some superiority, but such application technology is immature at present, and the present invention proposes a kind of for building
The toughening biology bagasse fibre and preparation method of concrete, can effectively solve above-mentioned technical problem.
Invention content
The defects of that there are toughness is low for the wider normal concrete of application at present, intensity difference, durability is poor, traditional fibre enhancing
The problems such as technical costs of concrete is higher, and fiber large specific surface area itself, obstruction concrete flowability, in addition, bagasse
The comprehensive utilization of fiber needs further perfect.
To solve the above problems, the present invention uses following technical scheme：
A kind of preparation method of toughening biology bagasse fibre for building concrete, the detailed process of preparation are：
（1）Bagasse is crushed by pulverizer first, is then added in the hydrochloric acid that mass concentration is 5 ~ 7%, magnetic agitation 20
~ 30min, add dispersion machine high speed disperse 50 ~ 80min, filter, adopt be washed with deionized to pH value be 7 or so, do
It is dry, the bagasse fibre of solution beam is made；
（2）By step（1）The bagasse fibre of solution beam obtained is soaked in Nano-meter SiO_22In dispersion liquid, wait for bagasse fibre to receiving
Rice SiO2It after the absorption of particle reaches saturation, filters, vacuum drying, the bagasse fibre of toughening modifying is made.
Preferably, step（1）The bagasse, which is that at least one of fruit sugarcane, sugarcane are remaining after mechanical compaction, to be consolidated
Body waste.
Preferably, step（1）The dispersion machine is kettle dispersion machine, and rotating speed is 2000 ~ 3000r/min.
Preferably, step（2）The Nano-meter SiO_22Mass concentration in dispersion liquid is 3 ~ 5%, Nano-meter SiO_22The grain size of particle
For 20 ~ 40nm.
Preferably, step（2）The vacuum drying carries out at normal temperatures, and vacuum degree is 0.05 ~ 0.2Pa, drying time 4
~6h。
The bagasse fibre of toughening modifying produced by the present invention is mixed in proportion with cement, coarse aggregate, fine aggregate and water,
Building concrete is made in stirring, passes through Nano-meter SiO_22Gel of calcium silicate is generated to anchor bagasse fibre, and bagasse is fine
Shrinkage stress when transferable concrete hardening is tieed up, to pre- crack resistence.When specifically used, the coarse aggregate is rubble, ovum
At least one of stone, grain size are 8 ~ 20mm；The fine aggregate is at least one of river sand, sea sand, mountain sand, artificial sand, grain
Diameter is 2 ~ 4mm；In concrete, count in parts by weight, wherein：2 ~ 4 parts of modified bagasse fiber, 13 ~ 17 parts of cement, coarse aggregate 35
~ 49 parts, 28 ~ 33 parts of fine aggregate, 8 ~ 12 parts of water.
A kind of toughening biology bagasse fibre for building concrete being prepared by the above method, bagasse fibre
With stronger tensile toughness, the shrinkage stress after incorporation when transferable concrete hardening plays centainly the cracking of concrete
Prevention effect；The nanoscale SiO that bagasse fibre is adsorbed2With the water and Ca in concrete mortar（OH）2Reaction generates silicic acid
Calcium gel plays the role of anchoring bagasse fibre in turn；Bagasse fibre raw material is cheap and easy to get, and modification process simply may be used
Row has considerable economy and environmental benefit.
It the freeze thawing mass loss rate of the concrete of bagasse fibre mixing prepared by the test present invention, infiltration coefficient and just splits
Intensity, and compare with normal concrete and carbon fiber reinforced concrete, method of the invention has a clear superiority, as shown in table 1.
Table 1：
The present invention provides a kind of toughening biology bagasse fibres and preparation method for building concrete, with prior art phase
Than the feature and excellent effect protruded is：
1, the toughening biology bagasse prepared using bagasse fibre absorption nano silicon dioxide for building concrete is proposed
The method of fiber.
2, using bagasse fibre there is stronger tensile toughness, the contraction after incorporation when transferable concrete hardening to answer
Power, concrete strength obtained is high, and good toughness, durability is good, can effectively prevent concrete cracking.
3, in preparation process, nanoscale SiO that bagasse fibre is adsorbed2, it is solidifying that calcium silicates is generated in concrete mortar
Glue can effectively anchor bagasse fibre, it is ensured that enhancing and toughening effect.
4, the required bagasse fibre raw material of the present invention is cheap and easy to get, and modification process simple possible, cost is relatively low, tool
There are considerable economy and environmental benefit.
Specific implementation mode
In the following, the present invention will be further described in detail by way of specific embodiments, but this should not be interpreted as to the present invention
Range be only limitted to example below.Without departing from the idea of the above method of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
（1）Bagasse is crushed by pulverizer first, is then added in the hydrochloric acid that mass concentration is 6%, magnetic agitation
25min adds dispersion machine high speed dispersion 65min, filters, and adopts that be washed with deionized to pH value be 7, dry, and solution is made
The bagasse fibre of beam；Bagasse is fruit sugarcane solid waste remaining after mechanical compaction；Dispersion machine is kettle dispersion machine,
Rotating speed is 2500r/min；
（2）By step（1）The bagasse fibre of solution beam obtained is soaked in Nano-meter SiO_22In dispersion liquid, wait for bagasse fibre to receiving
Rice SiO2It after the absorption of particle reaches saturation, filters, vacuum drying, the bagasse fibre of toughening modifying is made；Nano-meter SiO_22Solution
Mass concentration be 4%；Vacuum drying carries out at normal temperatures, vacuum degree 0.12Pa, drying time 5h.
The bagasse fibre of toughening modifying obtained is mixed in proportion with cement, coarse aggregate, fine aggregate and water, stirring system
Obtain building concrete；Coarse aggregate is rubble, average grain diameter 14mm；Fine aggregate is river sand, average grain diameter 3mm；In concrete,
It counts in parts by weight, wherein：3 parts of modified bagasse fiber, 15 parts of cement, 42 parts of coarse aggregate, 30 parts of fine aggregate, 10 parts of water.
The concrete of bagasse fibre mixing made from embodiment 1, freeze thawing mass loss rate, infiltration coefficient and just splits strong
Degree is as shown in table 2.
Embodiment 2
（1）Bagasse is crushed by pulverizer first, is then added in the hydrochloric acid that mass concentration is 5%, magnetic agitation
30min adds dispersion machine high speed dispersion 50min, filters, and adopts that be washed with deionized to pH value be 7, dry, and solution is made
The bagasse fibre of beam；Bagasse is sugarcane solid waste remaining after mechanical compaction；Dispersion machine is kettle dispersion machine,
Rotating speed is 2000r/min；
（2）By step（1）The bagasse fibre of solution beam obtained is soaked in Nano-meter SiO_22In dispersion liquid, wait for bagasse fibre to receiving
Rice SiO2It after the absorption of particle reaches saturation, filters, vacuum drying, the bagasse fibre of toughening modifying is made；Nano-meter SiO_22Solution
Mass concentration be 3%；Vacuum drying carries out at normal temperatures, vacuum degree 0.05Pa, drying time 6h
The bagasse fibre of toughening modifying obtained is mixed in proportion with cement, coarse aggregate, fine aggregate and water, stirring is made and builds
Build concrete；Coarse aggregate is, cobble, average grain diameter 8mm；Fine aggregate is sea sand, average grain diameter 2mm；In concrete, by weight
Number meter is measured, wherein：2 parts of modified bagasse fiber, 13 parts of cement, 49 parts of coarse aggregate, 28 parts of fine aggregate, 8 parts of water.
The concrete of bagasse fibre mixing made from embodiment 2, freeze thawing mass loss rate, infiltration coefficient and just splits strong
Degree is as shown in table 2.
Embodiment 3
（1）Bagasse is crushed by pulverizer first, is then added in the hydrochloric acid that mass concentration is 7%, magnetic agitation
20min adds dispersion machine high speed dispersion 80min, filters, and adopts that be washed with deionized to pH value be 7, dry, and solution is made
The bagasse fibre of beam；Bagasse is fruit sugarcane solid waste remaining after mechanical compaction；Dispersion machine is kettle dispersion machine,
Rotating speed is 3000r/min；
（2）By step（1）The bagasse fibre of solution beam obtained is soaked in Nano-meter SiO_22In dispersion liquid, wait for bagasse fibre to receiving
Rice SiO2It after the absorption of particle reaches saturation, filters, vacuum drying, the bagasse fibre of toughening modifying is made；Nano-meter SiO_22Solution
Mass concentration be 5%；Vacuum drying carries out at normal temperatures, vacuum degree 0.2Pa, drying time 4h.
The bagasse fibre of toughening modifying obtained is mixed in proportion with cement, coarse aggregate, fine aggregate and water, stirring system
Obtain building concrete；Coarse aggregate is rubble, average grain diameter 18mm；Fine aggregate is mountain sand, average grain diameter 4.5mm；Concrete
In, it counts in parts by weight, wherein：4 parts of modified bagasse fiber, 17 parts of cement, 35 parts of coarse aggregate, 33 parts of fine aggregate, 12 parts of water.
The concrete of bagasse fibre mixing made from embodiment 3, freeze thawing mass loss rate, infiltration coefficient and just splits strong
Degree is as shown in table 2.
Embodiment 4
（1）Bagasse is crushed by pulverizer first, is then added in the hydrochloric acid that mass concentration is 5%, magnetic agitation
28min adds dispersion machine high speed dispersion 60min, filters, and adopts that be washed with deionized to pH value be 7, dry, and solution is made
The bagasse fibre of beam；Bagasse is sugarcane solid waste remaining after mechanical compaction；Dispersion machine is kettle dispersion machine,
Rotating speed is 2200r/min；
（2）By step（1）The bagasse fibre of solution beam obtained is soaked in Nano-meter SiO_22In dispersion liquid, wait for bagasse fibre to receiving
Rice SiO2It after the absorption of particle reaches saturation, filters, vacuum drying, the bagasse fibre of toughening modifying is made；Nano-meter SiO_22Solution
Mass concentration be 3%；Vacuum drying carries out at normal temperatures, vacuum degree 0.08Pa, drying time 4.5h.
The bagasse fibre of toughening modifying obtained is mixed in proportion with cement, coarse aggregate, fine aggregate and water, stirring system
Obtain building concrete；Coarse aggregate is cobble, average grain diameter 10mm；Fine aggregate is artificial sand, average grain diameter 3mm；Concrete
In, it counts in parts by weight, wherein：3 parts of modified bagasse fiber, 14 parts of cement, 45 parts of coarse aggregate, 29 parts of fine aggregate, 9 parts of water.
The concrete of bagasse fibre mixing made from embodiment 4, freeze thawing mass loss rate, infiltration coefficient and just splits strong
Degree is as shown in table 2.
Embodiment 5
（1）Bagasse is crushed by pulverizer first, is then added in the hydrochloric acid that mass concentration is 7%, magnetic agitation
23min adds dispersion machine high speed dispersion 70min, filters, and adopts that be washed with deionized to pH value be 7, dry, and solution is made
The bagasse fibre of beam；Bagasse is fruit sugarcane solid waste remaining after mechanical compaction；Dispersion machine is kettle dispersion machine,
Rotating speed is 2800r/min；
（2）By step（1）The bagasse fibre of solution beam obtained is soaked in Nano-meter SiO_22In dispersion liquid, wait for bagasse fibre to receiving
Rice SiO2It after the absorption of particle reaches saturation, filters, vacuum drying, the bagasse fibre of toughening modifying is made；Nano-meter SiO_22Solution
Mass concentration be 5%；Vacuum drying carries out at normal temperatures, vacuum degree 0.18Pa, drying time 5.5h.
The bagasse fibre of toughening modifying obtained is mixed in proportion with cement, coarse aggregate, fine aggregate and water, stirring system
Obtain building concrete；Coarse aggregate is rubble, average grain diameter 16mm；Fine aggregate is river sand, average grain diameter 5mm；In concrete,
It counts in parts by weight, wherein：4 parts of modified bagasse fiber, 16 parts of cement, 38 parts of coarse aggregate, 31 parts of fine aggregate, 11 parts of water.
The concrete of bagasse fibre mixing made from embodiment 5, freeze thawing mass loss rate, infiltration coefficient and just splits strong
Degree is as shown in table 2.
Embodiment 6
（1）Bagasse is crushed by pulverizer first, is then added in the hydrochloric acid that mass concentration is 6%, magnetic agitation
26min adds dispersion machine high speed dispersion 60min, filters, and adopts that be washed with deionized to pH value be 7, dry, and solution is made
The bagasse fibre of beam；Bagasse is sugarcane solid waste remaining after mechanical compaction；Dispersion machine is kettle dispersion machine,
Rotating speed is 2700r/min；
（2）By step（1）The bagasse fibre of solution beam obtained is soaked in Nano-meter SiO_22In dispersion liquid, wait for bagasse fibre to receiving
Rice SiO2It after the absorption of particle reaches saturation, filters, vacuum drying, the bagasse fibre of toughening modifying is made；Nano-meter SiO_22Solution
Mass concentration be 4%；Vacuum drying carries out at normal temperatures, vacuum degree 0.15Pa, drying time 5.
The bagasse fibre of toughening modifying obtained is mixed in proportion with cement, coarse aggregate, fine aggregate and water, stirring system
Obtain building concrete；Coarse aggregate is average grain diameter 14mm in rubble, cobble；Fine aggregate is river sand, sea sand, mountain sand, artificial
Sand, average grain diameter 4mm；In concrete, count in parts by weight, wherein：3 parts of modified bagasse fiber, 15 parts of cement, coarse aggregate
41 parts, 32 parts of fine aggregate, 9 parts of water.
The concrete of bagasse fibre mixing made from embodiment 6, freeze thawing mass loss rate, infiltration coefficient and just splits strong
Degree is as shown in table 2.
Comparative example 1
（1）Bagasse is crushed by pulverizer first, is then added in the hydrochloric acid that mass concentration is 6%, magnetic agitation
26min adds dispersion machine high speed dispersion 60min, filters, and adopts that be washed with deionized to pH value be 7, dry, and solution is made
The bagasse fibre of beam；Bagasse is sugarcane solid waste remaining after mechanical compaction；Dispersion machine is kettle dispersion machine,
Rotating speed is 2700r/min；
（2）By step（1）The bagasse fibre of solution beam obtained mixes in proportion with cement, coarse aggregate, fine aggregate and water, stirs
Building concrete is made；Coarse aggregate is average grain diameter 14mm in rubble, cobble；Fine aggregate is river sand, sea sand, mountain sand, artificial
Sand, average grain diameter 4mm；In concrete, count in parts by weight, wherein：3 parts of bagasse fibre, 15 parts of cement, coarse aggregate 41
Part, 32 parts of fine aggregate, 9 parts of water.
The bagasse fibre for solving beam is not adsorbed Nano-meter SiO_2 by comparative example 12, the concrete of bagasse fibre mixing obtained
Freeze thawing mass loss rate, infiltration coefficient and first crack strength it is as shown in table 2.
The test method of above-mentioned performance indicator is：
Using bagasse fibre mixing concrete produced by the present invention, standard concrete test block is prepared, is distinguished after natural curing 28d
Carry out following experiment：
It takes a certain amount of test block that fast jelly method is taken to carry out freezing-thawing test, measures the freeze thawing mass loss after 50 freezing-thawing cycles
Rate characterizes anti-freezing property；
It takes a certain amount of test block that permeated height method is taken to carry out permeability test, measures infiltration coefficient, characterize anti-permeability performance；
It takes a certain amount of test block to carry out cracking resistance experiment, first crack strength is measured using cracking frame pressure tester, characterizes cracking resistance
Performance and toughness.
Table 2：
Claims (6)
1. a kind of preparation method of toughening biology bagasse fibre for building concrete, which is characterized in that preparation it is specific
Process is：
（1）Bagasse is crushed by pulverizer first, is then added in the hydrochloric acid that mass concentration is 5 ~ 7%, magnetic agitation 20
~ 30min, add dispersion machine high speed disperse 50 ~ 80min, filter, adopt be washed with deionized to pH value be 7 or so, do
It is dry, the bagasse fibre of solution beam is made；
（2）By step（1）The bagasse fibre of solution beam obtained is soaked in Nano-meter SiO_22In dispersion liquid, wait for bagasse fibre to receiving
Rice SiO2It after the absorption of particle reaches saturation, filters, vacuum drying, the bagasse fibre of toughening modifying is made.
2. the preparation method of a kind of toughening biology bagasse fibre for building concrete according to claim 1, special
Sign is：Step（1）The bagasse is at least one of fruit sugarcane, sugarcane solid waste remaining after mechanical compaction
Object.
3. the preparation method of a kind of toughening biology bagasse fibre for building concrete according to claim 1, special
Sign is：Step（1）The dispersion machine is kettle dispersion machine, and rotating speed is 2000 ~ 3000r/min.
4. the preparation method of a kind of toughening biology bagasse fibre for building concrete according to claim 1, special
Sign is：Step（2）The Nano-meter SiO_22The mass concentration of dispersion liquid is 3 ~ 5%, Nano-meter SiO_22The grain size of particle is 20 ~ 40nm.
5. the preparation method of a kind of toughening biology bagasse fibre for building concrete according to claim 1, special
Sign is：Step（2）The vacuum drying carries out at normal temperatures, and vacuum degree is 0.05 ~ 0.2Pa, and drying time is 4 ~ 6h.
6. a kind of toughening biology bagasse for building concrete that any one of claim 1 ~ 5 the method is prepared is fine
Dimension.
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| CN201810162054.6A CN108341605A (en) | 2018-02-26 | 2018-02-26 | A kind of toughening biology bagasse fibre and preparation method for building concrete |
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| CN201810162054.6A CN108341605A (en) | 2018-02-26 | 2018-02-26 | A kind of toughening biology bagasse fibre and preparation method for building concrete |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109279827A (en) * | 2018-10-17 | 2019-01-29 | 安徽菲扬新材料有限公司 | A kind of production technology of construction wall composite material |
| CN111217564A (en) * | 2020-02-24 | 2020-06-02 | 中国科学院金属研究所 | Surface-modified amorphous fiber reinforced concrete, preparation method and application in sea defense |
| CN112125551A (en) * | 2020-09-21 | 2020-12-25 | 西京学院 | Pretreatment method for plant fibers in concrete |
-
2018
- 2018-02-26 CN CN201810162054.6A patent/CN108341605A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109279827A (en) * | 2018-10-17 | 2019-01-29 | 安徽菲扬新材料有限公司 | A kind of production technology of construction wall composite material |
| CN111217564A (en) * | 2020-02-24 | 2020-06-02 | 中国科学院金属研究所 | Surface-modified amorphous fiber reinforced concrete, preparation method and application in sea defense |
| CN112125551A (en) * | 2020-09-21 | 2020-12-25 | 西京学院 | Pretreatment method for plant fibers in concrete |
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Application publication date: 20180731 |