CN106986597B - A kind of resistance paste materials of underground coal mine wind leaking stoppage and preparation method thereof - Google Patents
A kind of resistance paste materials of underground coal mine wind leaking stoppage and preparation method thereof Download PDFInfo
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- CN106986597B CN106986597B CN201710307428.4A CN201710307428A CN106986597B CN 106986597 B CN106986597 B CN 106986597B CN 201710307428 A CN201710307428 A CN 201710307428A CN 106986597 B CN106986597 B CN 106986597B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
- C09K8/426—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells for plugging
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
- C09K8/46—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
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- Chemical Kinetics & Catalysis (AREA)
- Structural Engineering (AREA)
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Abstract
The present invention provides a kind of resistance paste materials of underground coal mine wind leaking stoppage, including following components in parts by weight: 90~110 parts of water, 10~14 parts of flyash, 40~45 parts of cement, 0.8~1.2 part of bentonite, 0.1~0.4 part of cellulose, 31~44 parts of gypsum, 19~31 parts of calcium oxide, 6~8 parts of silica；The resistance slurrying body condensation of materials time provided by the invention in 30~40min can accuracy controlling, have good thermal resistance effect, thermal coefficient be 0.045w (mk), permeability is low, permeability 4.8*10‑3~7.4*10‑ 3MD, Qinshui rate are that 5.6%~6.8%, 1d compression strength is up to 3.99MPa, and being injected into the place for needing closure to leak out did not had the generation of air leakage phenomena after 1 day.
Description
Technical field
The present invention relates to field of inorganic materials, in particular to the resistance paste materials and its system of a kind of underground coal mine wind leaking stoppage
Preparation Method.
Background technique
Spontaneous combustionof coal is one of the Major Natural Disasters in coal production.In recent years, big with mining technology
Power promotion and application, coal production efficiency increase substantially, but this coal-mining method height is big, it is serious to leak out, so that mine
Well spontaneous combustion of coal is more frequent.In pit mining coal spontaneous combustion occur mainly in the presence of the goaf in channel of leaking out, open-off cut,
Stop adopting the places such as line, geological structural belt, caving place at the top of tunnel.In order to effectively prevent spontaneous combustionof coal, leak out place to underground
Down-hole plugging reduces or prevents to leak out, and prevents coal from contacting with oxygen very crucial.
Currently, administering the method leaked out mainly has grouting, gel, foamed resin, expanding cement etc..These methods are to guarantee
Safety of Coal Mine Production plays important function, but all still has several drawbacks: as being in the milk, slurries are low only along topography in goaf
Place flowing, crack cannot be blocked, cannot hoist accumulation, and easily form " drawing ditch " phenomenon；Gel-filled, flow is small, cost
Height, range of scatter are limited；Foamed resin is infused, although can solidify closure, compression strength is low, and burning is easy under hot conditions；
Expanding cement is infused, setting time is long, and is easy to produce tiny crack after condensing.
It is public for deficiency existing for existing underground coal mine wind leaking stoppage technology in prior art China patent CN103396075A
It has opened one kind and has been used for Flame-retardant paste material for coal mine downhole air leakage blocking, included 100 parts of water, fatty alcohol polyoxyethylene ether in component
0.2~0.4 part, 1~1.5 part of hydroxyethylmethylcellulose, 1.875~2.5 parts of gypsum, 7.5~10 parts of cement, flyash 30~
40 parts, the fire-retardant ointment material water retention property is strong, good flame retardation effect, wind leaking stoppage effect are good, but its condensation cure time is unstable
Fixed, the condensation cure time is longer, can not adjust the effectively control condensation cure time by matching, compression strength is also slightly insufficient.
Summary of the invention
The present invention technical problem unstable for setting time existing in the prior art, provides a kind of setting time
Controllable resistance paste materials and preparation method thereof within a short period of time.
The present invention provides a kind of resistance paste materials of underground coal mine wind leaking stoppage, including following components in parts by weight: water
90~110 parts, 10~14 parts of flyash, 40~45 parts of cement, 0.8~1.2 part of bentonite, 0.1~0.4 part of cellulose, gypsum
31~44 parts, 19~31 parts of calcium oxide, 6~8 parts of silica.
Preferably, the resistance paste materials of the underground coal mine wind leaking stoppage, including following components: 95~105 parts of water, fine coal
11~12.5 parts of ash, 42~44 parts of cement, 0.9~1.1 part of bentonite, 0.2~0.3 part of cellulose, 35~40 parts of gypsum, oxidation
24~30 parts of calcium, 7 parts of silica.
Preferably, the cement is portland-type cement, aluminate class cement or no first-hand datum class cement.
Preferably, the portland cement includes Portland fly ash cement, portland slag cement and composition silicate
One of cement is a variety of.
Preferably, the bentonite is sodium bentonite and/or calcium-base bentonite.
Preferably, the cellulose is hydroxyethylmethylcellulose and/or methylcellulose.
The present invention also provides a kind of preparation methods of the resistanceization paste materials of underground coal mine wind leaking stoppage, including following step
It is rapid:
Flyash, cement, bentonite, cellulose, gypsum, calcium oxide, silica and water are mixed according to weight
Conjunction obtains resistanceization paste materials.
Preferably, the mixing specifically:
1) flyash, cement and water are mixed to form mixed serum；
2) mixed serum and bentonite, cellulose are mixed to get thickening slurries；
3) the thickening slurries and gypsum, calcium oxide, silica are mixed.
Preferably, the mixing in the step 1)~step 3) carries out under agitation, and the revolving speed of stirring is 2000
±100r/min。
Preferably, mixing time stands alone as 1~5min in the step 1)~step 3).
The present invention provides a kind of resistance paste materials of underground coal mine wind leaking stoppage, including following components in parts by weight: water
90~110 parts, 10~14 parts of flyash, 40~45 parts of cement, 0.8~1.2 part of bentonite, 0.1~0.4 part of cellulose, gypsum
31~44 parts, 19~31 parts of calcium oxide, 6~8 parts of silica.Cement can promote the hydration reaction of flyash in the present invention,
Make flyash rapid curing as activator, while the calcium oxide, silica and gypsum form condensation system, realizes
The setting time of 30min~40min slurries is controllable at room temperature.Bentonite and cellulose can be reduced early period flyash and
Free water in cement mixing slurries facilitates mixed serum seepage flow in coal petrography crack and spreads, can increase after later period solidification
Hinder the toughness and intensity of slurrying body.The experimental results showed that the resistance slurrying body condensation of materials time provided by the invention is in 30~40min
It is interior accurate adjustable, there is good thermal resistance effect, thermal coefficient is 0.045w (mk), and permeability is low, permeability 4.8*10-3
~7.4*10-3MD, Qinshui rate are that 5.6%~6.8%, 1d compression strength is up to 3.99MPa, are injected into needs and block and leak out
Place there is no the generation of air leakage phenomena after 1 day.
The method and process provided by the invention for preparing above-mentioned resistance paste materials is simple, and low energy consumption, at low cost.
Specific embodiment
The present invention provides a kind of resistance paste materials of underground coal mine wind leaking stoppage, including following components in parts by weight: water
90~110 parts, 10~14 parts of flyash, 40~45 parts of cement, 0.8~1.2 part of bentonite, 0.1~0.4 part of cellulose, gypsum
31~44 parts, 19~31 parts of calcium oxide, 6~8 parts of silica.
Resistanceization paste materials provided by the invention do not have particular/special requirement for the source of raw material, using commercial goods.
Resistanceization paste materials provided by the invention include 90~110 parts by weight of water, preferably 95~105 parts, more preferably
100 parts；There is no particular/special requirement for the type of water in the present invention, in the present invention preferably fresh water.In the present invention, described
Water carries out hydrated reaction of cement sufficiently, is dissolved in various cement additives effectively in cement slurry, and play a role.
Resistanceization paste materials provided by the invention include 10~14 parts by weight of flyash, preferably 11~12.5 parts, more excellent
It is selected as 12 parts；In the present invention, the flyash granularity is 1~300 μm, and smaller particle size flyash is capable of replacing partial cement
Effect reduces cement consumption, reduces production cost, flyash granularity is preferably 10~100 μm, more preferably 20 in the present invention
~50 μm.
Resistanceization paste materials provided by the invention include 40~45 parts by weight of cement, preferably 42~44 parts, more preferably
43 parts；In the present invention, the cement is preferably portland-type cement, aluminate class cement or no first-hand datum class cement；In this hair
In bright, the portland cement preferably comprises Portland fly ash cement, portland slag cement and composite Portland cement
One of or it is a variety of.In the present invention, cement can promote the hydration reaction of flyash, make flyash fast as activator
Speed solidification.And flyash and cement are capable of forming mixed serum, enhance the performance of cement, and then improve resistanceization paste materials
Compression strength.
Resistanceization paste materials provided by the invention include 0.8~1.2 parts by weight of bentonite, preferably 0.9~1.1 part, more
Preferably 1.0 parts；The bentonite is preferably sodium bentonite and/or calcium-base bentonite in the present invention.
Resistanceization paste materials provided by the invention include 0.1~0.4 parts by weight of cellulose, preferably 0.2~0.3 part；?
Heretofore described cellulose is preferably hydroxyethylmethylcellulose and/or methylcellulose.
In the present invention, the combination of bentonite and cellulose is capable of forming thickening solution, reduces flyash and cement mixing
Free water in slurries improves the flowing permeability of slurry, facilitates slurry seepage flow in coal petrography crack and spreads, while can also
Leak-off rate is reduced, the toughness and intensity of resistance slurrying body can be increased after the solidification of later period slurry.
Resistanceization paste materials provided by the invention include 31~44 parts by weight of gypsum, preferably 35~40 parts, more preferably
38 parts；Gypsum in the present invention makes the surface for itself being adsorbed in hydrolysis product of cement, hinders water and cement by suction-operated
Contact and aquation further occurrence, generate the effect of slow setting, and then realize the stably and controllable property of setting time.
Resistanceization paste materials provided by the invention include 19~31 parts by weight of calcium oxide, preferably 24~30 parts, more preferably
It is 25 parts；In the present invention, calcium oxide and aquatic production calcium hydroxide, calcium hydroxide, gypsum react production calcium alum with tricalcium aluminate
Stone, the substance can quick lap joint so that slurry rapid condensation solidify.
Resistanceization paste materials provided by the invention include 6~8 parts by weight of silica, preferably 7 parts；In the present invention,
Due to containing calcium oxide in slurry component, calcium oxide can be reacted with water can release big calorimetric, and slurry volume is caused to expand and then produce
Raw crack, silica can generate calcium silicates with calcium hydroxide reaction and be attached to calcium oxide surface in the present invention, make its reaction speed
Spend it is slack-off, slow down crack appearance, play the complementation to calcium oxide, fill the crack of production so that resistance slurrying body do not generate
Crack.
The present invention is using calcium oxide, silica and gypsum as condensation system, by adjusting the weight proportion between three,
Slow setting and condensation effect are balanced, under the premise of guaranteeing not generate crack, the setting time of paste materials is reduced, realizes
The setting time of slurries is adjustable under room temperature.
The present invention also provides the preparation methods of the paste materials of resistanceization described in above-mentioned technical proposal, comprising the following steps:
Flyash, cement, bentonite, cellulose, gypsum, calcium oxide, silica and water are mixed according to weight
Conjunction obtains resistanceization paste materials.
Order by merging in the present invention is preferred are as follows:
1) flyash, cement and water are mixed to form mixed serum；
2) mixed serum and bentonite, cellulose are mixed to get thickening slurries；
3) the thickening slurries and gypsum, calcium oxide, silica are mixed.
In the present invention, the mixing carries out under agitation, and the revolving speed of the stirring is 2000 ± 100r/
Min, preferably 2000r/min.
In the present invention, the time stirred in the mixing of the step 1)~step 3) stands alone as 1~5min, preferably 2~
4min。
The present invention provides a kind of resistance paste materials of underground coal mine wind leaking stoppage, including following components in parts by weight: water
90~110 parts, 10~14 parts of flyash, 40~45 parts of cement, 0.8~1.2 part of bentonite, 0.1~0.4 part of cellulose, gypsum
31~44 parts, 19~31 parts of calcium oxide, 6~8 parts of silica.Cement can promote the hydration reaction of flyash in the present invention,
Make flyash rapid curing as activator, while the calcium oxide, silica and gypsum form condensation system, realizes
The setting time of 30min~40min slurries is adjustable at room temperature.Secondly, bentonite and cellulose can be reduced fine coal early period
Free water in ash and cement mixing slurries facilitates mixed serum seepage flow in coal petrography crack and spreads, can after later period solidification
Increase the toughness and intensity of resistance slurrying body.The experimental results showed that the resistance slurrying body condensation of materials time provided by the invention 30~
It is accurate adjustable in 40min, there is good thermal resistance effect, thermal coefficient is 0.045w (mk), and permeability is low, and permeability is
4.8*10-3~7.4*10-3MD, Qinshui rate are that 5.6%~6.8%, 1d compression strength is up to 3.99MPa, are injected into needs
Blocking the place leaked out did not had the generation of air leakage phenomena after 1 day.The method provided by the invention for preparing above-mentioned resistance paste materials
Simple process, low energy consumption, at low cost.
In order to further illustrate the present invention, leak-stopping cement mortar provided by the invention is carried out in detail below with reference to embodiment
Description, but they cannot be interpreted as limiting the scope of the present invention.
Embodiment 1:
According to the ratio be added 100 parts by weight of water, 10 parts by weight of flyash, 40 parts of portland-type cement, with 2000 ± 100 turns/
The rate stirring of minute, mixing time 2min form flyash and portland-type cement mixed serum；Then in mixed serum
Middle 0.8 parts by weight of addition sodium bentonite, 0.1 parts by weight of hydroxyethylmethylcellulose, with 2000 ± 100 revs/min of rate
Stirring, mixing time 2min form thickening slurries；Then, 31 parts by weight of gypsum, 19 weight of calcium oxide are added in thickening slurries
Part and 6 parts by weight of silica are measured, are stirred with 2000 ± 100 revs/min of rate, mixing time 3min is prepared one
The resistance paste materials of kind underground coal mine wind leaking stoppage.
Embodiment 2:
According to the ratio be added 100 parts by weight of water, 10 parts by weight of flyash, 45 parts of aluminate class cement, with 2000 ± 100 turns/
The rate stirring of minute, mixing time 1min form flyash and aluminate class cement mixing slurries；Then in mixed serum
0.9 parts by weight of middle addition calcium base and calcium-base bentonite, 0.2 parts by weight of methylcellulose, with 2000 ± 100 revs/min of rate
Stirring, mixing time 5min form thickening slurries；Then, 35 parts by weight of gypsum, 25 weight of calcium oxide are added in thickening slurries
Part and 6 parts by weight of silica are measured, are stirred with 2000 ± 100 revs/min of rate, mixing time 2min is prepared one
The resistance paste materials of kind underground coal mine wind leaking stoppage.
Embodiment 3:
According to the ratio be added 100 parts by weight of water, 11 parts by weight of flyash, 43 parts of portland-type cement, with 2000 ± 100 turns/
The rate stirring of minute, mixing time 3min form flyash and portland-type cement mixed serum；Then in mixed serum
Middle 0.9 parts by weight of addition calcium-base bentonite, 0.2 parts by weight of hydroxyethylmethylcellulose, with 2000 ± 100 revs/min of rate
Stirring, mixing time 1min form thickening slurries；Then, 37 parts by weight of gypsum, 24 weight of calcium oxide are added in thickening slurries
Part and 7 parts by weight of silica are measured, are stirred with 2000 ± 100 revs/min of rate, mixing time 5min is prepared one
The resistance paste materials of kind underground coal mine wind leaking stoppage.
Embodiment 4:
According to the ratio be added 100 parts by weight of water, 12 parts by weight of flyash, 43 parts of portland-type cement, with 2000 ± 100 turns/
The rate stirring of minute, mixing time 2min form flyash and portland-type cement mixed serum；Then in mixed serum
Middle 1.0 parts by weight of addition sodium bentonite, 0.3 parts by weight of hydroxyethylmethylcellulose, with 2000 ± 100 revs/min of rate
Stirring, mixing time 2min form thickening slurries；Then, 38 parts by weight of gypsum, 25 weight of calcium oxide are added in thickening slurries
Part and 7 parts by weight of silica are measured, are stirred with 2000 ± 100 revs/min of rate, mixing time 3min is prepared one
The resistance paste materials of kind underground coal mine wind leaking stoppage.
Embodiment 5:
According to the ratio be added 100 parts by weight of water, 14 parts by weight of flyash, 40 parts of portland-type cement, with 2000 ± 100 turns/
The rate stirring of minute, mixing time 5min form flyash and portland-type cement mixed serum；Then in mixed serum
Middle 1.0 parts by weight of addition sodium bentonite, 0.3 parts by weight of hydroxyethylmethylcellulose, with 2000 ± 100 revs/min of rate
Stirring, mixing time 3min form thickening slurries；Then, 40 parts by weight of gypsum, 30 weight of calcium oxide are added in thickening slurries
Part and 8 parts by weight of silica are measured, are stirred with 2000 ± 100 revs/min of rate, mixing time 3min is prepared one
The resistance paste materials of kind underground coal mine wind leaking stoppage.
Embodiment 6:
According to the ratio be added 100 parts by weight of water, 14 parts by weight of flyash, 45 parts of portland-type cement, with 2000 ± 100 turns/
The rate stirring of minute, mixing time 2min form flyash and portland-type cement mixed serum；Then in mixed serum
Middle 1.2 parts by weight of addition sodium bentonite, 0.4 parts by weight of methylcellulose are stirred with 2000 ± 100 revs/min of rate, are stirred
Mixing the time is 2min, forms thickening slurries；Then, thickening slurries in be added 44 parts by weight of gypsum, 31 parts by weight of calcium oxide and
8 parts by weight of silica, are stirred with 2000 ± 100 revs/min of rate, and a kind of coal mine is prepared in mixing time 3min
The resistance paste materials of underground wind leaking stoppage.
The present invention is tested by the performance to the paste materials of resistanceization described in Examples 1 to 6, performance such as 1 institute of table
Show:
Permeability test method: using MYS-1 moulded coal rock sample permeability test macro, and sample to be tested is put into core clamping
In device, the sealing of clamper both ends；Add confining pressure to experiment value core manually, open gas cylinder, required by storage pressure value and experiment
Pressure value is consistent；Record the permeability of institute's test specimens.
Bleeding rate test method: weighing a certain amount of resistanceization paste materials and records its quality, and rear pouring volume is sufficiently stirred
In cylinder (liquid level will be at least below graduated cylinder liquid level 30mm)；Graduated cylinder is covered using glass plate, starts timing；After 30min, every
10min removes glass plate, and supernatant liquor is sucked out using syringe, secretes out until anhydrous again；It is clear to weigh syringe suction upper layer
Liquid quality；Supernatant liquor quality and resistance slurrying body material moisture content ratio are bleeding rate.
Compression strength: being tested using RMT-150B Rock Mechanics Test system, and sample is placed on laboratory apparatus pedestal
On, it opens experimental system operation interface and is tested.
Setting time: being tested using Vicat apparatus, material from add water to the time for losing plasticity completely.
The performance parameter for the resistanceization paste materials that 1 Examples 1 to 6 of table obtains
By the analysis of 1 data of table it is found that resistanceization paste materials 1d compression strength provided by the invention reach 2.57~
3.99MPa shows higher compression strength.The Qinshui rate of the resistanceization paste materials is 5.6%~6.8%, and permeability is
4.8*10-3~7.4*10-3There is MD lower bleeding rate and permeability ensure that quick diffusion of the slurry in coal petrography crack
And (permeability refers to gas permeability to seal-off effect, and permeability is lower to illustrate that past gas is also few thoroughly, and gas permeability is poorer, blocks
Effect is better), the condensation cure time is also reduced and controls in 30~40min range, will be configured with Grouting pump
The resistance slurrying body containing flyash, which is injected into, to be needed to block the place leaked out, and does not have the generation of air leakage phenomena after blocking one day, solves
Cause crack that cannot effectively block the generation of phenomenon because of the too fast solidification of slurry.
The present invention is with fire-retardant ointment material disclosed in ordinary cement in the prior art and patent CN103396075A
It has carried out performance as reference examples to compare, comparing result is as shown in table 2:
The comparison of the compression strength and condensation effect of 2 resistanceization paste materials of table and ordinary cement
By 2 data of table analysis it is found that resistanceization paste materials provided by the invention setting time relative to ordinary cement with
It is significantly reduced for fire-retardant ointment material, 1~28 day compression strength is above ordinary cement and fire-retardant lotion material
Material.
And the method and process provided by the invention for preparing above-mentioned resistance paste materials is simple, and low energy consumption, at low cost.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of resistance paste materials of underground coal mine wind leaking stoppage, are made of following components in parts by weight: 90~110 parts of water, powder
10~14 parts of coal ash, 40~45 parts of cement, 0.8~1.2 part of bentonite, 0.1~0.4 part of cellulose, 31~44 parts of gypsum, oxidation
19~31 parts of calcium, 6~8 parts of silica.
2. resistanceization paste materials according to claim 1, which is characterized in that be made of following components in parts by weight: water 95
~105 parts, 11~12.5 parts of flyash, 42~44 parts of cement, 0.9~1.1 part of bentonite, 0.2~0.3 part of cellulose, gypsum
35~40 parts, 24~30 parts of calcium oxide, 7 parts of silica.
3. resistanceization paste materials according to claim 1 or 2, which is characterized in that the cement is portland-type cement, aluminium
Barbiturates cement or no first-hand datum class cement.
4. resistanceization paste materials according to claim 3, which is characterized in that the portland-type cement includes flyash-Si
One of acid salt cement, portland slag cement and composite Portland cement are a variety of.
5. resistanceization paste materials according to claim 1 or 2, which is characterized in that the bentonite be sodium bentonite and/
Or calcium-base bentonite.
6. resistanceization paste materials according to claim 1 or 2, which is characterized in that the cellulose is that hydroxyethyl methyl is fine
Dimension element and/or methylcellulose.
7. the preparation method of resistanceization paste materials described in any one according to claim 1~6, comprising the following steps:
Flyash, cement, bentonite, cellulose, gypsum, calcium oxide, silica and water are mixed according to weight
To resistanceization paste materials.
8. the preparation method of resistanceization paste materials according to claim 7, which is characterized in that the mixing specifically:
1) flyash, cement and water are mixed to form mixed serum；
2) mixed serum and bentonite, cellulose are mixed to get thickening slurries；
3) the thickening slurries and gypsum, calcium oxide, silica are mixed.
9. the preparation method of resistanceization paste materials according to claim 8, which is characterized in that the step 1)~step 3)
In mixing carry out under agitation, the revolving speed of the stirring independently is 2000 ± 100r/min.
10. the preparation method of resistanceization paste materials according to claim 9, which is characterized in that the step 1)~step
3) time stirred in stands alone as 1~5min.
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| CN110818371B (en) * | 2019-10-24 | 2021-11-30 | 山西澳华工矿山支护科技有限公司 | Inorganic reinforcing material for overspeed mine and preparation method thereof |
| CN113816707A (en) * | 2021-09-18 | 2021-12-21 | 四川省建筑科学研究院有限公司 | Curing agent, preparation method and application thereof, weathered argillaceous siltstone improved material and application thereof |
| CN113860835B (en) * | 2021-10-09 | 2022-09-09 | 山西潞安晋安矿业工程有限责任公司 | High-strength powder reinforcing material |
| CN114656276A (en) * | 2022-05-10 | 2022-06-24 | 湖南科技大学 | Nano self-expansion curing foam fire prevention and extinguishing material and preparation method thereof |
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| CN103224377A (en) * | 2013-04-12 | 2013-07-31 | 泰安市华硕能源科技有限公司 | Coal mine hole sealing agent and preparation and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103224377A (en) * | 2013-04-12 | 2013-07-31 | 泰安市华硕能源科技有限公司 | Coal mine hole sealing agent and preparation and use method thereof |
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