CN108017338A - A kind of application of stone material factory's waste stone dust in concrete - Google Patents
A kind of application of stone material factory's waste stone dust in concrete Download PDFInfo
- Publication number
- CN108017338A CN108017338A CN201711331265.XA CN201711331265A CN108017338A CN 108017338 A CN108017338 A CN 108017338A CN 201711331265 A CN201711331265 A CN 201711331265A CN 108017338 A CN108017338 A CN 108017338A
- Authority
- CN
- China
- Prior art keywords
- parts
- china
- stone dust
- waste stone
- hemp fibers
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- 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
- 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
-
- 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
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant 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 application of stone material factory's waste stone dust in concrete, effectively stone material factory's waste stone dust is recycled in concrete, a kind of small, not easy to crack, antibacterial the is heat-resisting concrete of good, the dry shrinkage of high intensity, freexing tolerance is made, stone material factory's waste stone dust can be avoided to abandon the environmental pollution produced, the cost input of concrete preparation is also saved, its production method includes the following steps：Step（1）, waste stone dust pretreatment, step（2）, china-hemp fibers pretreatment；Step（3）, by step（1）Gained waste stone dust and step（2）5 8min are first mixed in gained china-hemp fibers, then stand 10min, such circulate operation 35 times, that is, obtain being attached to the china-hemp fibers of waste stone dust；Step（4）, by cement, ardealite, rough sand, fine sand, gel rubber material, diatom ooze, polypropylene fibre, step（3）Gained china-hemp fibers, bone meal, tongue Ji and water blending and stirring, obtain concrete.
Description
Technical field
The present invention relates to the applied technical field of mountain flour, more particularly to a kind of stone material factory's waste stone dust answering in concrete
With.
Background technology
China's stone material total output in 2007 is 2,400,000,000 meter 2, need to process 4800 myriametre 3 of waste bad building stones, convert into 1 .25 hundred million
Ton.50 kilograms of waste stone dusts calculating are produced often to cut one cubic metre of building stones of processing, the whole nation is annual to produce 6,250,000 tons of waste stone dust.
The waste stone dust major part caused by process that cuts of stone material is some tens of pm and a few micrometers of fine powder, and coarse granule is few, therefore useless
The discharge of mountain flour and stockpiling easily generation environment pollute, and particularly in stone industries compact district, having become regional economy can hold
One of main restricting factor of supervention exhibition.
Concrete is typically to make cementitious material with cement, and sand, masonry gather materials, with water（Additive and admixture can be contained）By one
Certainty ratio coordinate, it is agitated obtained by cement concrete, also referred to as normal concrete, it have it is easily molded, energy consumption is low, durability
It is good, cheap and the advantages of can be made into various support mechanisms is combined with steel, it is the present age most widely used construction material,
Development to human society plays a very important role.
The content of the invention
Therefore, for it is above-mentioned the problem of, the present invention proposes a kind of application of stone material factory's waste stone dust in concrete, effectively
Stone material factory's waste stone dust is recycled in concrete, good, the dry shrinkage of a kind of obtained high intensity, freexing tolerance is small, is not easy out
Split, the concrete that antibacterial is heat-resisting, stone material factory's waste stone dust can be avoided to abandon the environmental pollution produced, also save concrete preparation
Cost input.
To realize above-mentioned technical problem, the solution that the present invention takes is：A kind of stone material factory's waste stone dust is in concrete
Application, in turn include the following steps：
Step（1）, waste stone dust pretreatment：Collect waste stone dust；Heating, drying processing is carried out to waste stone dust, when drying makes waste stone dust exist
30~60min is kept under 100~105 DEG C of temperature conditions；Waste stone dust after drying is ground, is ground to particle diameter at 45 μm
Below；
Step（2）, china-hemp fibers pretreatment：Long 5-10mm is made in china-hemp fibers；China-hemp fibers are immersed in concentration is
The citric acid solution of 0.5mol/L, and sodium hypophosphite is added, 1h is stirred at room temperature, the solution for mixing china-hemp fibers is poured into
In plate container, oven for drying is put into constant weight, then 3min is dried under 180 DEG C of temperature conditions, is then cooled to room temperature, then
Washing by soaking is carried out to china-hemp fibers with deionized water, until it is neutral, then filtered, be dried for standby；
Step（3）, by step（1）Gained waste stone dust and step（2）5-8min is first mixed in gained china-hemp fibers, then stands
10min, such circulate operation 3-5 times, that is, obtain being attached to the china-hemp fibers of waste stone dust；Wherein, during mixing waste stone dust and
The mass ratio of china-hemp fibers is waste stone dust：China-hemp fibers=2:1；
Step（4）, by cement, ardealite, rough sand, fine sand, gel rubber material, diatom ooze, polypropylene fibre, step（3）The gained Chinese
Flaxen fiber, bone meal, tongue Ji and water blending and stirring, obtain concrete.
It is further the step（4）Middle each component is calculated as by weight：40-57 parts of cement, 8-12 parts of ardealite,
18-23 parts of rough sand, 8-13 parts of fine sand, 10-13 parts of gel rubber material, 1-3 parts of diatom ooze, 5-8 parts of polypropylene fibre, step（3）Institute
Obtain 500-600 parts of 4-7 parts of china-hemp fibers, 5-7 parts of bone meal, 6-9 parts of tongue Ji and water.
It is further the step（4）Middle each component is calculated as by weight：40 parts of cement, 8 parts of ardealite, rough sand 20
Part, 8 parts of fine sand, 10 parts of gel rubber material, 2 parts of diatom ooze, 6 parts of polypropylene fibre, step（3）6 parts of gained china-hemp fibers, bone meal 5
500 parts of part, 6 parts of tongue Ji and water.
By using preceding solution, the beneficial effects of the invention are as follows：
1st, application of the stone material factory's waste stone dust in concrete, waste stone dust is using china-hemp fibers as intermediary's medium to be mixed into cement
Etc. to prepare concrete, avoiding the local powder that waste stone dust occurs in mixing process to unite phenomenon in component, avoid because
Phenomenon of uniting causes concrete structure performance skewness, structural stability low, easy to crack etc. existing so that waste stone dust disperses inequality
As；And china-hemp fibers mainly contain cellulose and part non-cellulosic material, including it is hemicellulose, lignin, pectin, water-soluble
Thing, adipocere matter and ash grade component, have the mechanical properties such as higher specific strength and specific modulus, by hemp stalk core fibre and barren rock
Powder is conjointly employed in the intensity that concrete can be effectively lifted in concrete.
2nd, china-hemp fibers have special loose structure, and fibrillar center has larger cavity, have multi-level longitudinal direction and horizontal stroke
To the crack being connected with cavity and hole, specific surface area is big, and the infiltration beneficial to waste stone dust is adhered to, and joint efficiency is high.By barren rock
Powder is ground to fine powder of the particle diameter below 45 μm, is more conducive to infiltration attachment of the waste stone dust in china-hemp fibers structure；And Chinese fiber crops
By lemon low-kappa number, substantial amounts of negatively charged carboxyl functional group in grafting, forms certain fiber on china-hemp fibers
The adsorption site of quantity, under Coulomb force effect, the waste stone dust with positive charge can realize positioning absorption on china-hemp fibers,
Improve waste stone dust and the absorption association rate of china-hemp fibers；The mode that circulation turns to stop is employed during mixing, can carried
The contact-impact efficiency between waste stone dust and china-hemp fibers, lifting absorption contact surface are risen, while coordinates standing to assign suction-operated
Consolidation effect, lifts the combination effect after Contact-sorption, effectively improves the adsorption efficiency of waste stone dust and china-hemp fibers, avoid
Obscission is adsorbed caused by mixing power when not stopping being stirred, the phenomenon that adsorption efficiency declines；Avoid and stand for a long time
The phenomenon that absorption contact area caused by accumulation absorption is small, adsorption efficiency declines.
3rd, it is blended using china-hemp fibers, substantial amounts of polar hydrophilic group is contained in china-hemp fibers molecule, surface is more
The polar hydrophilic material of hydroxyl structure, easily stable solvation is formed when being contacted with water with water molecules adsorbed water molecule
Moisture film, has lubricating action, can reduce the resistance to sliding between cement granules, improve the mobility of concrete；Meanwhile china-hemp fibers
With special loose structure, fibrillar center has larger cavity, longitudinally has many cracks being attached thereto and hole, makes fiber
With more capillary channel, spread easy to moisture penetration, being then used as transmission by the china-hemp fibers being scattered in concrete is situated between
Matter, enables to moisture rapid dispersion in hydration process comprehensive, increases hydrated reaction of cement contact area, improves hydration reaction effect
Should, the increase of hydration reaction forms the alkaline environment for being more conducive to Behavior of Hardened Cement Paste growth, and good alkaline environment makes polypropylene fine
Dimension has more preferable workability in concrete, and fiber can be made to be more easy to spatially three-dimensional shape and be uniformly distributed among concrete.
Embodiment
Embodiment 1
A kind of application of stone material factory's waste stone dust in concrete, in turn includes the following steps：
Step（1）, waste stone dust pretreatment：Collect waste stone dust；Heating, drying processing is carried out to waste stone dust, when drying makes waste stone dust exist
60min is kept under 100 DEG C of temperature conditions；Waste stone dust after drying is ground, is ground to particle diameter below 45 μm；
Step（2）, china-hemp fibers pretreatment：Long 8mm is made in china-hemp fibers；It is 0.5mol/L that china-hemp fibers are immersed in concentration
Citric acid solution, and add 2g sodium hypophosphites, 1h be stirred at room temperature, the solution for mixing china-hemp fibers is poured into tablet and is held
In device, be put into oven for drying to constant weight, then dry 3min under 180 DEG C of temperature conditions, be then cooled to room temperature, then spend from
Sub- water carries out washing by soaking to china-hemp fibers, until it is neutral, then filtered, be dried for standby；
Step（3）, by step（1）Gained waste stone dust and step（2）6min is first mixed in gained china-hemp fibers, then stands
10min, such circulate operation 5 times, that is, obtain being attached to the china-hemp fibers of waste stone dust；Wherein, waste stone dust and the Chinese during mixing
The mass ratio of flaxen fiber is waste stone dust：China-hemp fibers=2:1；
Step（4）, by 40 parts of cement, 8 parts of ardealite, 20 parts of rough sand, 8 parts of fine sand, 10 parts of gel rubber material, 2 parts of diatom ooze, poly- third
6 parts of alkene fiber, step（3）500 parts of 6 parts of gained china-hemp fibers, 5 parts of bone meal, 6 parts of tongue Ji and water blending and stirrings, obtain concrete；Its
Middle mixing speed is 200r/min, mixing time 15min.
Comparative example 1
Applicating adn implementing example 1 of the stone material factory's waste stone dust of comparative example 1 in concrete is basically identical, difference lies in：Step is not contained
Suddenly（2）Step（3）, step（4）In do not contain china-hemp fibers, step（1）Gained waste stone dust substitutes china-hemp fibers and is directly used in step
Suddenly（4）Blending and stirring.
Comparative example 2
Applicating adn implementing example 1 of the stone material factory's waste stone dust of comparative example 2 in concrete is basically identical, difference lies in：Step is not contained
Suddenly（1）Step（2）Step（3）Untreated china-hemp fibers are directly added step by processing（4）Blending operations in.
Comparative example 3
Applicating adn implementing example 1 of the stone material factory's waste stone dust of comparative example 3 in concrete is basically identical, difference lies in：China-hemp fibers
Step is not contained（2）Step（3）Processing, directly by step（1）Gained waste stone dust（6 parts of waste stone dust）, untreated china-hemp fibers
Add step（4）Blending operations in.
Concrete made from the embodiment of the present invention 1 and comparative example 1-2 is subjected to working performance contrast, comparing result such as following table
Shown in 1：
Table, working performance contrast table
In conclusion the application according to stone material factory's waste stone dust in concrete, it is good, dry to be made a kind of high intensity, freexing tolerance
Small, not easy to crack, antibacterial the is heat-resisting concrete of dry shrinkage, can avoid stone material factory's waste stone dust from abandoning the environmental pollution produced,
Also save the cost input of concrete preparation.
The foregoing descriptions are merely the embodiment using this origination techniques content, any those skilled in the art use this wound
Make done modifications and changes, all belong to the scope of the claims of this creation opinion, and be not limited to those disclosed embodiments.
Claims (3)
1. application of a kind of stone material factory's waste stone dust in concrete, it is characterised in that in turn include the following steps：
Step（1）, waste stone dust pretreatment：Collect waste stone dust；Heating, drying processing is carried out to waste stone dust, when drying makes waste stone dust exist
30~60min is kept under 100~105 DEG C of temperature conditions；Waste stone dust after drying is ground, is ground to particle diameter at 45 μm
Below；
Step（2）, china-hemp fibers pretreatment：Long 5-10mm is made in china-hemp fibers；China-hemp fibers are immersed in concentration is
The citric acid solution of 0.5mol/L, and sodium hypophosphite is added, 1h is stirred at room temperature, the solution for mixing china-hemp fibers is poured into
In plate container, oven for drying is put into constant weight, then 3min is dried under 180 DEG C of temperature conditions, is then cooled to room temperature, then
Washing by soaking is carried out to china-hemp fibers with deionized water, until it is neutral, then filtered, be dried for standby；
Step（3）, by step（1）Gained waste stone dust and step（2）5-8min is first mixed in gained china-hemp fibers, then stands
10min, such circulate operation 3-5 times, that is, obtain being attached to the china-hemp fibers of waste stone dust；Wherein, during mixing waste stone dust and
The mass ratio of china-hemp fibers is waste stone dust：China-hemp fibers=2:1；
Step（4）, by cement, ardealite, rough sand, fine sand, gel rubber material, diatom ooze, polypropylene fibre, step（3）The gained Chinese
Flaxen fiber, bone meal, tongue Ji and water blending and stirring, obtain concrete.
2. application of the stone material factory's waste stone dust according to claim 1 in concrete, it is characterised in that the step（4）
Middle each component is calculated as by weight：40-57 parts of cement, 8-12 parts of ardealite, 18-23 parts of rough sand, 8-13 parts of fine sand, gel rubber material
10-13 parts, 1-3 parts of diatom ooze, 5-8 parts of polypropylene fibre, step（3）4-7 parts of gained china-hemp fibers, 5-7 parts of bone meal, tongue Ji 6-
9 parts and 500-600 parts of water.
3. application of the stone material factory's waste stone dust according to claim 2 in concrete, it is characterised in that the step（4）
Middle each component is calculated as by weight：40 parts of cement, 8 parts of ardealite, 20 parts of rough sand, 8 parts of fine sand, 10 parts of gel rubber material, diatom ooze 2
Part, 6 parts of polypropylene fibre, step（3）500 parts of 6 parts of gained china-hemp fibers, 5 parts of bone meal, 6 parts of tongue Ji and water.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711331265.XA CN108017338A (en) | 2017-12-13 | 2017-12-13 | A kind of application of stone material factory's waste stone dust in concrete |
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| CN201711331265.XA CN108017338A (en) | 2017-12-13 | 2017-12-13 | A kind of application of stone material factory's waste stone dust in concrete |
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| CN108017338A true CN108017338A (en) | 2018-05-11 |
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| CN201711331265.XA Pending CN108017338A (en) | 2017-12-13 | 2017-12-13 | A kind of application of stone material factory's waste stone dust in concrete |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111944607A (en) * | 2020-08-21 | 2020-11-17 | 福建邦研油脂科技股份有限公司 | Grease composition and preparation method thereof |
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Application publication date: 20180511 |
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