CN109912275A - A kind of freeze proof plant cover concrete, preparation method and its usage containing copper-sulphide ores acid waste water bed mud - Google Patents
A kind of freeze proof plant cover concrete, preparation method and its usage containing copper-sulphide ores acid waste water bed mud Download PDFInfo
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- CN109912275A CN109912275A CN201910159149.7A CN201910159149A CN109912275A CN 109912275 A CN109912275 A CN 109912275A CN 201910159149 A CN201910159149 A CN 201910159149A CN 109912275 A CN109912275 A CN 109912275A
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Abstract
The present invention relates to large-scale mine green ecological recovery technique fields, specifically disclose a kind of freeze proof plant cover concrete, preparation method and its main application containing copper-sulphide ores acid waste water bed mud.The freeze proof plant cover concrete, for area's mine rock side slope foundation protection and the ecological environment reparation of trembling with fear, component includes: 30-50wt% acid waste water bed mud, 8-10wt% portland cement, 0.5-1.0wt% water-reducing agent, 18-28wt% fertilizer synergist, 1.5-3wt% antifreeze, 14-22wt% auxiliary material by weight percentage.The freeze proof plant cover concrete is using copper-sulphide ores acid waste water bed mud as main substrate, bed mud getting fat reparation conditioner and antifreeze are added simultaneously, both solved the problems, such as bed mud nowhere stack, secondary pollution, solve the problems, such as that the large-scale mines rock slope such as copper-sulphide ores reclaims the great demand of plant cover concrete and avoids secondary ecological environment destruction and freeze thawing resistance caused by taking soil again, to realize " treatment of wastes with processes of wastes against one another ".
Description
Technical field
The invention belongs to large-scale mine green ecological recovery technique fields, and in particular to one kind contains copper-sulphide ores spent acidic
Freeze proof plant cover concrete, preparation method and its main application of water-bed mud.
Background technique
It is all the time all very prominent that the Land Environment in China various types mining area destroys problem.Conservative estimation, it is complete at present
All kinds of exploited thecoal mines of 1500, state occupy and up to 2,000,000 hectares of land area (20,000,000,000 square metres) of damage, and it is annual still
With 3.3 ten thousand to 4.7 ten thousand hectares of speed increase.And in terms of land reclamation completion, the current land reclamation in mining area rate in China only has
15%, rate of reclaiming to average mine far below 50%-70% in the world level, more below American-European countries is more than 80% or more number
Word.The real very severe of national land reclamation.The cultivated area for belonging to mine development occupancy in 2000000 hectares is public up to 600,000
Hectare, it is extremely urgent to restore the cultivated area that mine occupies and is destroyed.The main target of the following land restoration in mining area will be conceived to
Realization is damaged land restoration as arable land and other ecology lands used, rather than previous simple covering vegetation.Carry out mine reclamation
Needing huge number of soil as raw matrix, strange land is planted takes soil that can cause serious ecology to ecological environment for mine reclamation
It destroys.
Plant cover concrete ecological protection technology is to plant green seed formula to rock side using specific concrete formulation and mixing
The new technology that slope is protected and afforested.Plant cover concrete in plant cover concrete ecological slope protection greening technique had both had certain
Intensity and overall performance, and be good plant growth substrate, side slope superficial protection can be reached, repair slope surface Nutrient medium
Matter, the multi-efficiency built vegetation growth environment, vegetation is promoted well to grow.The core of technique is that plant cover concrete is matched
Side.It is collection rock engineering mechanics, biology, agrology, fertile science, silicate chemistry, gardening, environmental ecology and water and soil
Keep the subjects such as engineering science in the synthesized environmental protection technology of one.Since plant cover concrete is according to side slope geographical location, slope angle
Degree, rock property afforest requirement etc. to determine that green seed and water are planted in cement, water-retaining agent, depot fertilizer, distinctive additive, mixing
Composition ratio.Mixing plant green seed be using supplement feeding and season type grass seeds according to the mixing of biological growth characteristic preferably and
At vegetation can evergreen all the year round, perennation, natural propagation.Because plant cover concrete has 30% or so superelevation porosity, hole
It is interior be full of water when frost heaving failure easily occurs.It is found by early-stage study, under conditions of not taking any freeze proof measure, commonly
Plant cover concrete just will appear fracture, crushing etc. after bearing most 20 Frozen-thawed cycleds seriously to be destroyed, and anti-freezing property is very poor.
Copper-sulphide ores acidity water process produces raw about 500,000 tons of bed mud per year, and existing disposal options are stored up after being direct or filters pressing
In waste-rock yard, occupies valuable mine space and secondary pollution easily occurs.Copper-sulphide ores acid waste water is handled using current technology
Its main component of generated bed mud is calcium sulfate, iron hydroxide etc. afterwards, and the tenors such as copper, lead, zinc are below primary standard
(GB8978-1996), belong to Ι class industrial solid wastes, the aqueous 40-50% of bed mud, phosphorus, potassium 0.01- needed for plant growth
0.04%, in the normal range, and it is nitrogenous few.
Currently, the application study of plant cover concrete has been reported that both at home and abroad, but in numerous copper-sulphide ores recovery process,
Using copper-sulphide ores acid waste water bed mud as the main substrate of freeze proof plant cover concrete, while cooperating with copper-sulphide ores spent acidic
Water-bed mud getting fat reparation conditioner adds portland cement, peat, water-reducing agent, ammonium hydrogen carbonate, plant fiber, polyacrylonitrile
Fiber, air entraining agent build the freeze proof plant cover concretes of material developments such as environmentally friendly rubber powder, super finely ground slag, coarse aggregate, increase substantially plant
Report is not yet seen in by the application study of the anti-freezing property of concrete, therefore, there is an urgent need to study invention with acid waste water bed mud
For the optimum amount of the freeze proof plant cover concrete material component of main substrate, base is established for popularization of the plant cover concrete in Han Qu
Plinth invents corresponding freeze proof plant cover concrete, realizes waste utilization target of the acid waste water bed mud in ecological restoration of mine.
Summary of the invention
The technical problem to be solved by the present invention is to repair conditioner and freeze proof material using acid waste water bed mud, bed mud getting fat
Material invents the novel anti-freezing plant cover concrete suitable for large-scale cold area's mine rock side slope such as copper-sulphide ores, and the freeze proof vegetation is mixed
Function that solidifying soil has both cold area's slope protection intensity simultaneously and green is reclaimed, provides new material and new work for the green restoration of the ecosystem of the mine Han Qu
Skill realizes waste utilization of the bed mud in Mine ecology is reclaimed.
The present invention adopts the following technical scheme that, Lai Shixian goal of the invention.
A kind of freeze proof plant cover concrete containing copper-sulphide ores acid waste water bed mud, includes: 30- by weight percentage
50wt% acid waste water bed mud, 8-10wt% portland cement, 0.5-1.0wt% water-reducing agent, 18-28wt% fertilizer synergist, 1.5-
3wt% antifreeze, 14-22wt% auxiliary material.
The fertilizer synergist includes: 2-4wt% bed mud conditioner, 8-12wt% peat, 5-7wt% plant by weight percentage
Fiber, 3-5wt% ammonium hydrogen carbonate.
The antifreeze include: by weight percentage 0.5-1.0wt% build environmentally friendly rubber powder, 0.5-1.0wt% air entraining agent,
0.5-1wt% polyacrylonitrile fibre.
The auxiliary material includes: 8-12wt% coarse aggregate, 6-10wt% super finely ground slag by weight percentage.
Further, the acid waste water bed mud is copper-sulphide ores acid waste water bed mud.According to copper-sulphide ores spent acidic
Underflow mud (HDS) its main component caused by water process current technology is calcium sulfate, iron hydroxide etc., the metals such as copper, lead, zinc
Content is below national standard reference (GB8978-1996), endangers composition project and is below national standard reference (GB8978-
1996), belong to Ι class industrial solid wastes, according to the Law on Environmental Protection of the People's Republic of China, " People's Republic of China's water and soil
Holding method ", " mining geological environmental protection regulation " (Ministry of Land and Resources enables No. 44), " mine ecological environment qrotection and pollution are anti-
Control technical policy " (ring send out [2005] No. 109), the country such as " land reclamation regulations " (State Council Decree the 592nd) and place promulgate
Relevant laws, regulation, policy document and technical specification etc., Mine ecology can be applied to and reclaimed, secondary dirt will not be generated
Dye, bed mud is faintly acid, microbiological indicator needed for each plant growth that bed mud contains, constant nutrient, organic indicator pole
It is low, and moisture content height is crystallized, it is unable to satisfy plant growth needs at all, it is necessary to just be able to achieve by implementing artificial getting fat reparation
The treatment of wastes with processes of wastes against one another, the target of Ecologic recultivation.
Further, the portland cement is 42.5 ordinary portland cements.The 42.5 normal silicate water
Mud, Portland clinker, the mixing material of 5%-20% and proper amount of gypsum it is levigate made of hydraulic cementing materials.Have
Intensity is high, the heat of hydration is big, frost resistance is good, drying shrinkage is small, and wearability is preferable, carbonization resistance is preferable, poor corrosion resistance, non-refractory
Characteristic.
Further, the water-reducing agent is powder polycarboxylate.The powder polycarboxylate, water-reducing rate are not less than
25%, maintain concrete slump it is constant under conditions of, can be reduced mixing water amount, have excellent water-reducing rate, mobility,
Permeability.There is peptizaiton to cement granules after concrete mix is added, its workability can be improved, reduces unit consumption of water,
Improve the mobility of concrete mix；Or unit cement consumption is reduced, save cement.
Further, the bed mud conditioner is a kind of copper sulfide disclosed in patent No. ZL201611113304.4
Mine acid waste water remedying sludge, which is administered, uses conditioner, and the getting fat which is directed to copper-sulphide ores acid waste water bed mud is repaired
It is multiple.
Further, the peat, is peat organic fertilizer particles, and partial size is 1-3 millimeters.The peat particle be it is light,
Water holding, fertilizer conservation are conducive to microbial activities, enhance biological property, full of nutrition, are both cultivation matrix and good soil
Mediator agent, and contain the round shaped grain peat organic fertilizer of very high organic matter, humic acid and nutrition.
Further, the plant fiber, be vetiver, teosinte, hybrid giant napier, rice straw, corn stover one
Kind or several, plant fiber length 20-40mm.
Further, the ammonium hydrogen carbonate is a kind of carbonate, nitrogenous 17.7% or so, increase nitrogen for plant cover concrete
Fertilizer.It can be analyzed to NH3、CO2And H2Tri- kinds of gases of O and disappear, also known as gas fertilizer.Ammonium hydrogen carbonate is colourless or shallow granular, plate or column
Shape crystalline solid, ammonium hydrogen carbonate are without (sulphur) acid group nitrogenous fertilizer, three of them component is all the nutrient of crop, are free of harmful intermediate product
With final decomposition product, it is one of most safe nitrogen fertilizers that long-time service, which does not influence soil property,
Further, the building environmental protection rubber powder is cold water soluble environment protecting rubber powder, white powder, fineness 90-120
Mesh, solid content 95-98%, pH value 7-9.
Further, the air entraining agent is selected from triterpenoid saponin, neopelex, lauryl sodium sulfate, pine
One kind of fragrant pyrolytic polymer, air content 3%-5%, 200 freeze thawing >=80%, 200 time freeze thawing intensity damages of relatively durable property index
Lose 0-7.8, weight loss 0-1.2.
Further, the polyacrylonitrile fibre, diameter are 13-25 μm, length 6-19mm, tensile strength >=
600MPa, strong resistance to acid and alkali, heat resistance is insoluble at a temperature of 220 DEG C, density 1.18g/m3, elongation percentage >=15% is fast light
Property is good.
Further, the coarse aggregate is this real estate common lime rock rubble, partial size 20-30mm continuous grading.
Further, the super finely ground slag is SILICA FUME, and fineness accounts for 80% or more less than 1 μm, and average grain diameter exists
0.1-0.3 μm, 20-25m of specific surface area2/g.It is examined under conditions of 32 DEG C of temperature, humidity 50% and obtains every 100g containing SiO2With
Fe is respectively 96.6g and 0.5g.
The present invention also provides a kind of systems with the freeze proof plant cover concrete that copper-sulphide ores acid waste water bed mud is main substrate
Preparation Method, comprising the following steps: A, configure freeze proof plant cover concrete: 30-50wt% acid waste water according to following mass percent
Bed mud, 8-10wt% portland cement, 0.5-1.0wt% water-reducing agent, 2-4wt% bed mud conditioner, 8-12wt% peat, 5-
7wt% plant fiber, 3-5wt% ammonium hydrogen carbonate, 0.5-1wt% build environmentally friendly rubber powder, 0.5-1.0wt% air entraining agent, 8-
12wt% coarse aggregate, 6-10wt% super finely ground slag, 0.5-1wt% polyacrylonitrile fibre；B, environment temperature is controlled above freezing 15
DEG C to 25 DEG C, environmentally friendly rubber powder, air entraining agent, water-reducing agent stirring soluble in water 5-10 minutes will be first built, standing is stirred for 15 minutes again
It mixes 5 minutes, keeps its fully dispersed, add filtered pulpous state acid waste water bed mud, coarse aggregate stirs evenly, and back is stirred
While sequentially add polyacrylonitrile fibre, plant fiber, peat, stirring 10-15 minutes is eventually adding ammonium hydrogen carbonate, bottom to uniform
Mud conditioner, super finely ground slag, portland cement are stirred until homogeneous.
The acid waste water bed mud is copper-sulphide ores acid waste water treated waste, and original is slurry, through filters pressing
Become solid form afterwards, bed mud is faintly acid, microbiological indicator needed for each plant growth that bed mud contains, constant nutrient,
Organic indicator is extremely low, and crystallizes moisture content height, is unable to satisfy plant growth needs at all, it is necessary to pass through and implement artificial getting fat
Reparation could substitute soil utilization.
The bed mud conditioner, using a kind of acidity of copper-sulphide ores disclosed in Patent No. ZL201611113304.4
Waste water remedying sludge, which is administered, uses conditioner, which is directed to the getting fat reparation of copper-sulphide ores acid waste water bed mud,
Fertilizer efficiency, the physicochemical property, microbial diversity that bed mud can greatly be improved improve the diseases and insect pests resistance of plant, practical application effect
Fruit is significant.
The portland cement selects 42.5 ordinary portland cements.It is the crosslinking agent in plant cover concrete, by silicon
Acid salt cement clinker, the mixing material of 5%-20% and the levigate manufactured hydraulic cementing materials of proper amount of gypsum, can be improved plant
By the intensity of concrete, but amount will control, and otherwise will lead to vegetable seeds can not germinating growth.
The water-reducing agent choice of powder polycarboxylate, water-reducing rate are not less than 25%, are maintaining concrete slump constant
Under conditions of, it can be reduced mixing water amount, there is excellent water-reducing rate, mobility, permeability.After concrete mix is added
Have peptizaiton to cement granules, can improve its workability, reduce unit consumption of water, improve concrete mix mobility,
Or unit cement consumption is reduced, save cement.
The air entraining agent be triterpenoid saponin, neopelex, lauryl sodium sulfate, colophonium pyrolytic polymer wherein
One kind, air content 3%-5%, 200 freeze thawing >=80%, 200 time freezing-thawing strength damage 0-7.8 of relatively durable property index, weight
Amount loss 0-1.2.Air entraining agent can improve the freeze proof plant cover concrete slump, mobility and plasticity；Reduce concrete water bleeding and
Isolation, improves the homogenieity of concrete；The flexural strength for improving concrete, when air content is 3%-5%, flexural strength is improved
10%-20%；Thermal diffusion and the coefficient of conductivity for reducing concrete, improve the volume stability of concrete, enhance field knot
The weatherability of structure extends the service life of concrete；Greatly improve concrete frost resistance, salt resistance stain, impermeability, resistance to sulfate
Erosion and alkali resistant aggregate reaction performance.
The building environmental protection rubber powder is cold water soluble environment protecting rubber powder, white powder, fineness 90-120 mesh, solid content 95-
98%, pH value 7-9.Alite paste is served as, plant cover concrete frost resistance is improved.
The polyacrylonitrile fibre, physical parameter are 13-25 μm of diameter, length 6-19mm, tensile strength >=
600MPa, strong resistance to acid and alkali, fusing point: >=220 DEG C, density 1.18g/m3, elongation percentage >=15%, moisture content :≤2%, it is fast light
Property is good.As the secondary reinforcement material of freeze proof plant cover concrete, play the role of good micro- arrangement of reinforcement, polyacrylonitrile fibre can be bright
The aobvious toughness and shock resistance for improving freeze proof plant cover concrete, and the generation and development in crack are effectively prevented, improve coagulation
The endurance qualities such as impermeability, the frost resistance of soil.Its great function and prospect of the application in concrete is increasingly by engineering
Boundary recognizes and receives.
The peat selects partial size in 1-3 millimeter peat organic fertilizer particles, it has light, water holding, fertilizer conservation, favorably
In microbial activities, enhancing biological property, characteristic full of nutrition is both cultivation matrix and good soil mediator agent, and
Contain very high organic matter, humic acid and nutrition.With the decomposition of particle, the hole of formation helps to improve vegetation coagulation
Soil pores rate improves water penetration.
The ammonium hydrogen carbonate is a kind of carbonate, nitrogenous 17.7% or so, increase nitrogenous fertilizer for plant cover concrete.It is decomposable
For NH3、CO2And H2Tri- kinds of gases of O and disappear, also known as gas fertilizer.Ammonium hydrogen carbonate is colourless or shallow granular, plate or column crystallization body,
Ammonium hydrogen carbonate is without (sulphur) acid group nitrogenous fertilizer, three of them component is all the nutrient of crop, without harmful intermediate product and final point
Product is solved, it is one of most safe nitrogen fertilizers that long-time service, which does not influence soil property,.
The plant fiber, select vetiver, teosinte, hybrid giant napier, rice straw, corn stover one kind or several
Kind, plant fiber length 20-40mm.Why plant fiber is added, is had since one side can increase needed for plant growth
On the other hand machine matter can play the effect of reinforcing rib on physical mechanics, improve the mechanical structure of plant cover concrete, improve vegetation
Tension, the shearing strength of concrete, it is more environmentally-friendly compared to more other inorfils.
The super finely ground slag is SILICA FUME, can the intergranular hole of filling concrete, while generating with hydrated product solidifying
Colloid reacts with basic matterial magnesia and generates gelinite.In freeze proof plant cover concrete, significantly improves resistance to compression, anti-folding, resists
Infiltration, anti-corrosion, shock resistance and wear-resisting property；With being retained, prevent isolation, bleeding, the pumping resistance of freeze proof plant cover concrete be greatly reduced
The effect of power；The significant service life for extending concrete.Especially under the adverse circumstances such as sulfate attack, high humility, it can make to plant
Even several times are doubled by the durability of concrete；It, can be with cement when mixed concrete with extremely strong volcano ash effect
Hydrated product Ca (OH)2Secondary reaction of hydration occurs, forms gelled product, filling concrete stone structure improves the microcosmic knot of slurry
Structure improves the mechanical property and durability of hardenite；SILICA FUME is unformed spherical particle, and the rheological characteristic of concrete can be improved
Can, the average particle size particle size of SILICA FUME is smaller, and there is good filing effect, can be filled between cement granules gap,
Improve concrete strength and durability.
The invention also discloses a kind of purposes of freeze proof plant cover concrete containing copper-sulphide ores acid waste water bed mud, this is anti-
Freeze plant cover concrete for the area copper-sulphide ores Deng Han mine rock side slope foundation protection and ecological environment reparation.Its application method
It is: according to freeze proof plant cover concrete component provided by the present invention and proportions, is then uniformly stirred according to step of preparation process
Processing is mixed, is sowed grass seeds by duster using air compressor development, single is sowed grass seeds by duster thickness 20-30mm, is sowed grass seeds by duster 3 times.
The utility model has the advantages that
(1) the present invention provides a kind of freeze proof plant cover concretes containing copper-sulphide ores acid waste water bed mud, preparation method
And its bottom is added using copper-sulphide ores acid waste water bed mud as main substrate in main application, the freeze proof plant cover concrete
Mud getting fat reparation conditioner and freeze thawing resistance material, not only solved the problems, such as bed mud nowhere stack, secondary pollution, but also solve vulcanization
The large-scale mines rock slope such as copper mine reclaims the great demand of plant cover concrete and avoids secondary ecological environment caused by taking soil
Destruction problem also solves the intensity and frost resistance problem of plant cover concrete, to realize " treatment of wastes with processes of wastes against one another ", save mine reclamation
Substantial contribution needed for project has significant economic benefit and social benefit.It, can be fast by the application of the freeze proof plant cover concrete
The area Su Han rock slope forms the side slope protection basis with some strength and the environmental protection for meeting green ecological reparation
It is required that using in the faintly acid and ammonium hydrogen carbonate of bed mud and the alkalinity of portland cement, adjust the pH value of plant cover concrete to
Neutral range；The bed mud getting fat reparation being added simultaneously supplements insufficient microelement with conditioner, generates a large amount of beneficial biologies
Flora improves bed mud physicochemical structure, and increase sharply bed mud fertilizer efficiency, restores the ecological balance, and biology fast-growth is suitble to after getting fat；Add
The compactness for entering peat particle, air entraining agent improvement concrete improves gas porosity to meet plant seed germination and growth needs；Add
Enter polyacrylonitrile fibre, super finely ground slag, build environmentally friendly rubber powder, significantly improves freeze proof plant cover concrete, resistance to compression, anti-folding, impervious, anti-
Rotten, shock resistance and wear-resisting property, the significant service life for extending concrete, the especially severe ring such as sulfate attack, high humility
Under border, the durability of plant cover concrete can be made to double even several times.With significant technical effect.Using bed mud as mine
The substrate cost that mountain rock slope green ecological repairs plant cover concrete is 80 yuan/cubic metre, is had with Jiangxi Copper group share
For the affiliated mine reclamation work of limit company, expect within 2018 that 200,000,000 implementation open-pit slope green ecologicals of investment are repaired to 2020
It is multiple, fund that the implementation present invention will provide technical support every year for the enterprise and saving 40,000,000 is reclaimed.Part is substituted using bed mud
Soil has apparent cost advantage as the plant cover concrete substrate reclaimed.
(2) raw materials of the present invention are environmentally friendly material, will not cause secondary pollution, and preparation method is simple,
It is easy to use, it is at low cost.
Detailed description of the invention
The present invention is without attached drawing.
Specific embodiment
The present invention is further illustrated combined with specific embodiments below, but the present invention is not limited to following embodiments.
The method is conventional method unless otherwise instructed.The raw material can obtain unless otherwise instructed from public commercial source
?.
Embodiment 1:
A kind of freeze proof plant cover concrete containing copper-sulphide ores acid waste water bed mud, preparation method includes the following steps:
A, freeze proof plant cover concrete: 40wt% acid waste water bed mud, 3wt% copper-sulphide ores spent acidic is configured according to following mass percent
Water-bed mud repairing and treating conditioner (ZL201611113304.4), 8wt% ordinary portland cement, 10wt% peat particle,
10wt% SILICA FUME, 5wt% ammonium hydrogen carbonate, 0.5wt% powder polycarboxylate, 5.5wt% plant fiber (vetiver+teosinte+
Hybrid giant napier=1:1:1), 1wt% polyacrylonitrile fibre, 0.5wt% building adhisive powder, 0.5wt% air entraining agent (triterpenoid saponin),
10wt% limestone gravel, 6wt% water；B, environment temperature is controlled at 15 DEG C to 25 DEG C above freezing, will first builds environmentally friendly rubber powder, draws
Gas agent, water-reducing agent stirring soluble in water 5-10 minutes stand 15 minutes and are again stirring for (800 revs/min) 5 minutes, divide it sufficiently
It dissipates, adds filtered pulpous state acid waste water bed mud, limestone gravel stirs evenly, then sequentially add poly- third while stirring
Alkene nitrile fiber, plant fiber, peat are eventually adding ammonium hydrogen carbonate, bed mud conditioner, ultra-fine mine to uniform in stirring 10-15 minutes
Powder, portland cement are stirred until homogeneous.
Plant growth test and freeze thawing resistance test effect: plant cover concrete prepared according to the above method is carried out into freeze thawing resistance examination
Test, be mixed into respectively Bermuda grass, alfalfa, besom grass, sudangrass, hybrid giant napier, wild adlay, rye grass, teosinte, Asiatic plantain,
The vegetable seeds such as wormwood sow grass seeds by duster Mr. Yu's copper-sulphide ores rock slope on carry out plant growth test, test result is as follows:
Embodiment 2:
A kind of freeze proof plant cover concrete containing copper-sulphide ores acid waste water bed mud, preparation method includes the following steps:
A, freeze proof plant cover concrete: 50wt% acid waste water bed mud, 3wt% copper-sulphide ores spent acidic is configured according to following mass percent
Water-bed mud repairing and treating conditioner (ZL201611113304.4), 8wt% ordinary portland cement, 8wt% peat particle,
6wt% SILICA FUME, 3wt% ammonium hydrogen carbonate, 0.5wt% powder polycarboxylate, 5wt% plant fiber (teosinte+rice straw=
1:1), 0.5wt% polyacrylonitrile fibre, 0.5wt% building adhisive powder, 0.5wt% air entraining agent (neopelex),
8wt% limestone gravel, 6wt% water；B, environment temperature is controlled at 15 DEG C to 25 DEG C above freezing, will first builds environmentally friendly rubber powder, draws
Gas agent, water-reducing agent stirring soluble in water 5-10 minutes stand 15 minutes and are again stirring for (800 revs/min) 5 minutes, divide it sufficiently
It dissipates, adds filtered pulpous state acid waste water bed mud, limestone gravel stirs evenly, then sequentially add poly- third while stirring
Alkene nitrile fiber, plant fiber, peat are eventually adding ammonium hydrogen carbonate, bed mud conditioner, ultra-fine mine to uniform in stirring 10-15 minutes
Powder, portland cement are stirred until homogeneous.
Plant growth test and freeze thawing resistance test effect: the plant cover concrete prepared in aforementioned manners carries out freeze thawing resistance test, point
The vegetable seeds such as besom grass, hybrid giant napier, rye grass, teosinte, alfalfa are not mixed into sow grass seeds by duster Mr. Yu's copper-sulphide ores rock slope
Upper development plant growth test, test result are as follows:
Embodiment 3:
A kind of freeze proof plant cover concrete containing copper-sulphide ores acid waste water bed mud, preparation method includes the following steps:
A, freeze proof plant cover concrete: 30wt% acid waste water bed mud, 4wt% copper-sulphide ores spent acidic is configured according to following mass percent
Water-bed mud repairing and treating conditioner (ZL201611113304.4), 10wt% ordinary portland cement, 12wt% peat particle,
10wt% SILICA FUME, 5wt% ammonium hydrogen carbonate, 1wt% powder polycarboxylate, 7wt% plant fiber (teosinte+hybrid giant napier=1:
1), 1wt% polyacrylonitrile fibre, 1wt% building adhisive powder, 1wt% air entraining agent (lauryl sodium sulfate), 12wt% limestone are broken
Stone, 6wt% water；B, environment temperature is controlled at 15 DEG C to 25 DEG C above freezing, it is molten will first builds environmentally friendly rubber powder, air entraining agent, water-reducing agent
Yu Shuizhong is stirred 5-10 minutes, is stood 15 minutes and is again stirring for (800 revs/min) 5 minutes, keeps its fully dispersed, add filtering
Pulpous state acid waste water bed mud, limestone gravel afterwards stirs evenly, and then sequentially adds polyacrylonitrile fibre, plant while stirring
Fiber, peat are eventually adding ammonium hydrogen carbonate, bed mud conditioner, super finely ground slag, portland cement to uniform in stirring 10-15 minutes
It is stirred until homogeneous.
Plant growth test and freeze thawing resistance test effect: the plant cover concrete prepared in aforementioned manners carries out freeze thawing resistance test, point
The vegetable seeds such as besom grass, hybrid giant napier, rye grass, teosinte, alfalfa are not mixed into sow grass seeds by duster Mr. Yu's copper-sulphide ores rock slope
Upper development plant growth test, test result are as follows:
Embodiment 4:
A kind of freeze proof plant cover concrete containing copper-sulphide ores acid waste water bed mud, preparation method includes the following steps:
A, freeze proof plant cover concrete: 45wt% acid waste water bed mud, 4wt% copper-sulphide ores spent acidic is configured according to following mass percent
Water-bed mud repairing and treating conditioner (ZL201611113304.4), 8wt% ordinary portland cement, 8wt% peat particle,
8wt% SILICA FUME, 4wt% ammonium hydrogen carbonate, 0.5wt% powder polycarboxylate, 5wt% plant fiber (vetiver+teosinte=1:
1), 0.5wt% polyacrylonitrile fibre, 0.5wt% building adhisive powder, 0.5wt% air entraining agent (colophonium pyrolytic polymer), 10wt% limestone
Rubble, 6wt% water；B, environment temperature is controlled at 15 DEG C to 25 DEG C above freezing, will first builds environmentally friendly rubber powder, air entraining agent, water-reducing agent
Stirring soluble in water 5-10 minutes stands 15 minutes and is again stirring for (800 revs/min) 5 minutes, keeps its fully dispersed, added
Pulpous state acid waste water bed mud, limestone gravel after filter stir evenly, and then sequentially add polyacrylonitrile fibre while stirring, plant
Fibres, peat are eventually adding ammonium hydrogen carbonate, bed mud conditioner, super finely ground slag, silicate cement to uniform in stirring 10-15 minutes
Mud is stirred until homogeneous.
Plant growth test and freeze thawing resistance test effect: the plant cover concrete prepared in aforementioned manners carries out freeze thawing resistance test, point
The vegetable seeds such as besom grass, hybrid giant napier, rye grass, teosinte, alfalfa are not mixed into sow grass seeds by duster Mr. Yu's copper-sulphide ores rock slope
Upper development plant growth test, test result are as follows:
Embodiment 5:
A kind of freeze proof plant cover concrete containing copper-sulphide ores acid waste water bed mud, preparation method includes the following steps:
A, freeze proof plant cover concrete: 35wt% acid waste water bed mud, 3wt% copper-sulphide ores spent acidic is configured according to following mass percent
Water-bed mud repairing and treating conditioner (ZL201611113304.4), 9wt% ordinary portland cement, 11wt% peat particle,
10wt% SILICA FUME, 5wt% ammonium hydrogen carbonate, 0.5wt% powder polycarboxylate, 6.5wt% plant fiber (rice straw),
1wt% polyacrylonitrile fibre, 0.5wt% building adhisive powder, 0.5wt% air entraining agent (colophonium pyrolytic polymer), 12wt% limestone gravel,
6wt% water；B, environment temperature is controlled at 15 DEG C to 25 DEG C above freezing, will first builds environmentally friendly rubber powder, air entraining agent, water-reducing agent and is dissolved in water
Middle stirring 5-10 minutes stands 15 minutes and is again stirring for (800 revs/min) 5 minutes, keeps its fully dispersed, add filtered
Pulpous state acid waste water bed mud, limestone gravel stir evenly, and it is fine then to sequentially add polyacrylonitrile fibre, plant while stirring
Dimension, peat are eventually adding ammonium hydrogen carbonate, bed mud conditioner, super finely ground slag, portland cement to uniform in stirring 10-15 minutes
It is stirred until homogeneous.
Plant growth test and freeze thawing resistance test effect: the plant cover concrete prepared in aforementioned manners carries out freeze thawing resistance test, point
The vegetable seeds such as besom grass, hybrid giant napier, rye grass, teosinte, alfalfa are not mixed into sow grass seeds by duster Mr. Yu's copper-sulphide ores rock slope
Upper development plant growth test, test result are as follows:
Specific embodiments of the present invention are described in detail above, but it is merely an example, the present invention is simultaneously unlimited
It is formed on particular embodiments described above, a kind of freeze proof vegetation coagulation containing copper-sulphide ores acid waste water bed mud of the invention
Soil can also be promoted and applied to the rock slope foundation protection in other mines Han Qu such as Pb-Zn deposits, fluorite ore and ecological environment reparation
In work, and there is close effect.To those skilled in the art, equivalent modifications and substitution that any couple of present invention carries out
Also all among scope of the invention.Therefore, made equal transformation and modification without departing from the spirit and scope of the invention,
All cover within the scope of the present invention.
Claims (10)
1. a kind of freeze proof plant cover concrete containing copper-sulphide ores acid waste water bed mud, which is characterized in that wrap by weight percentage
It includes: 30-50wt% acid waste water bed mud, 8-10wt% portland cement, 0.5-1.0wt% water-reducing agent, 18-28wt% getting fat
Agent, 1.5-3wt% antifreeze, 14-22wt% auxiliary material.
2. a kind of freeze proof plant cover concrete containing copper-sulphide ores acid waste water bed mud according to claim 1, feature
It is, the fertilizer synergist includes: 2-4wt% bed mud conditioner, 8-12wt% peat, 5-7wt% plant fibre by weight percentage
Dimension, 3-5wt% ammonium hydrogen carbonate.
3. a kind of freeze proof plant cover concrete containing copper-sulphide ores acid waste water bed mud according to claim 1, feature
Be, the antifreeze include: by weight percentage 0.5-1.0wt% build environmentally friendly rubber powder, 0.5-1.0wt% air entraining agent,
0.5-1wt% polyacrylonitrile fibre.
4. a kind of freeze proof plant cover concrete containing copper-sulphide ores acid waste water bed mud according to claim 1, feature
It is, the auxiliary material includes: 8-12wt% coarse aggregate, 6-10wt% super finely ground slag by weight percentage.
5. a kind of freeze proof plant cover concrete containing copper-sulphide ores acid waste water bed mud according to claim 1, feature
Be: the acid waste water bed mud is copper-sulphide ores acid waste water bed mud；The portland cement is 42.5 normal silicates
Cement；The water-reducing agent is not less than 25% powder polycarboxylate for water-reducing rate.
6. a kind of freeze proof plant cover concrete containing copper-sulphide ores acid waste water bed mud according to claim 2, feature
Be: the bed mud conditioner is repaired for a kind of copper-sulphide ores acid waste water bed mud disclosed in patent No. ZL201611113304.4
Multiple administer uses conditioner；The peat, is peat organic fertilizer particles, and partial size is 1-3 millimeters；The plant fiber, be vetiver,
Teosinte, hybrid giant napier, rice straw, corn stover one or more, plant fiber length 20-40mm.
7. a kind of freeze proof plant cover concrete containing copper-sulphide ores acid waste water bed mud according to claim 3, feature
Be: the environmentally friendly rubber powder of the building is cold water soluble environment protecting rubber powder, white powder, fineness 90-120 mesh, solid content 95-98%,
PH value 7-9；The air entraining agent be selected from triterpenoid saponin, neopelex, lauryl sodium sulfate, colophonium pyrolytic polymer one
Kind, air content 3%-5%, 200 freeze thawing >=80%, 200 time freezing-thawing strength damage 0-7.8 of relatively durable property index, weight
Lose 0-1.2；The polyacrylonitrile fibre, diameter are 13-25 μm, length 6-19mm, tensile strength >=600MPa.
8. a kind of freeze proof plant cover concrete containing copper-sulphide ores acid waste water bed mud according to claim 4, feature
Be: the coarse aggregate is common lime rock rubble, partial size 20-30mm continuous grading；The super finely ground slag is SILICA FUME, fineness
80% or more is accounted for less than 1 μm, average grain diameter is at 0.1-0.3 μm.
9. a kind of for the described in any item freeze proof vegetation coagulations containing copper-sulphide ores acid waste water bed mud of claim 1 to 8
The preparation method of soil, which comprises the following steps:
A, freeze proof plant cover concrete: 30-50wt% acid waste water bed mud, 8-10wt% silicic acid is configured according to following mass percent
Salt cement, 0.5-1.0wt% water-reducing agent, 2-4wt% bed mud conditioner, 8-12wt% peat, 5-7wt% plant fiber, 3-
5wt% ammonium hydrogen carbonate, 0.5-1wt% build environmentally friendly rubber powder, 0.5-1.0wt% air entraining agent, 8-12wt% coarse aggregate, 6-10wt%
Super finely ground slag, 0.5-1wt% polyacrylonitrile fibre；
B, environment temperature is controlled at 15 DEG C to 25 DEG C above freezing, will first builds that environmentally friendly rubber powder, air entraining agent, water-reducing agent is soluble in water stirs
It mixes 5-10 minutes, stands 15 minutes and be again stirring for 5 minutes, keep its fully dispersed, add filtered pulpous state acid waste water bottom
Mud, coarse aggregate stir evenly, and then sequentially add polyacrylonitrile fibre, plant fiber, peat while stirring, and stirring 10-15 divides
Clock is eventually adding ammonium hydrogen carbonate, bed mud conditioner, super finely ground slag, portland cement and is stirred until homogeneous to uniform.
10. a kind of purposes of the freeze proof plant cover concrete containing copper-sulphide ores acid waste water bed mud, it is characterised in that: the freeze proof plant
By concrete, for area's mine rock side slope foundation protection and the ecological environment reparation of trembling with fear.
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