CN107793114A - A kind of mining inorganic injection composite mortar and preparation method thereof - Google Patents
A kind of mining inorganic injection composite mortar and preparation method thereof Download PDFInfo
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- CN107793114A CN107793114A CN201711161841.0A CN201711161841A CN107793114A CN 107793114 A CN107793114 A CN 107793114A CN 201711161841 A CN201711161841 A CN 201711161841A CN 107793114 A CN107793114 A CN 107793114A
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- Prior art keywords
- composite mortar
- compound
- injection composite
- cement
- inorganic injection
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Classifications
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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
- C04B28/14—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 calcium sulfate cements
- C04B28/16—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 calcium sulfate cements containing anhydrite, e.g. Keene's cement
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent 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
- 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
- C04B2111/346—Materials exhibiting reduced plastic shrinkage cracking
-
- 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
- C04B2111/76—Use at unusual temperatures, e.g. sub-zero
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention provides mining inorganic injection composite mortar of the present invention, it is made up of the component of following mass percent：Dry sand 10 85%, cement 10 50%, flyash 1 20%, anhydrous gypsum 1 20% and accelerator 1 20%.Mining inorganic injection composite mortar of the present invention, rebound low, waterproof, freeze proof, anti-ice salt, not chloride, upper overhead can construct；Once construct, coating thickness can be more than 20cm；On the premise of construction quality and construction effect is ensured, shotcrete thickness is reduced, and so as to reduce labor intensity, reduces labour cost, cost-effective.Present invention also offers the preparation method of described mining inorganic injection composite mortar.
Description
Technical field
The invention belongs to mortar technical field, more particularly to a kind of mining inorganic injection composite mortar and its preparation side
Method.
Background technology
Mining inorganic rapid hardening injection composite mortar is that one kind is used to dig up mine and tunnel, bridge road and massif are reinforced and repaiied
Multiple spray furnace.Ejector principle is：By aggregate etc., other raw material stir by a certain percentage, are then charged into spraying machine,
With compressed air make it is dry gather materials be sent to spray gun in suspended state in flexible pipe, then mixed at nozzle with water under high pressure, with higher
Speed is ejected on scar, has the advantages of mechanical structure used is simpler, mechanical cleaning and easy troubleshooting.
Existing inorganic spray furnace includes common portland cement, quartz sand, thickener, defoamer, water reducer etc..
With construction material application variation, special typeization, the demand of high performance, existing inorganic spray furnace oneself meet through being difficult to,
Because although its compression strength is high, it has poor toughness, easily shrinks, cracking, and adhesive property is bad, and early strength is low,
The shortcomings of cost is high.
The content of the invention
For above-mentioned technical problem, it is an object of the invention to provide a kind of mining inorganic injection composite mortar, ensureing
On the premise of construction quality and construction effect, shotcrete thickness is reduced, it is cost-effective；Present invention also offers the mining inorganic spray
Penetrate the preparation method of composite mortar.
The technical solution adopted by the present invention is：
A kind of mining inorganic injection composite mortar, is made up of the component of following mass percent：Dry sand 10-85%, cement
10-50%, flyash 1-20%, anhydrous gypsum 1-20% and accelerator 1-20%.
Mining inorganic injection composite mortar of the present invention, wherein, it is made up of the component of following mass percent：Dry sand
10-50%, cement 30-50%, flyash 10-20%, anhydrous gypsum 5-10% and accelerator 5-10%.
Mining inorganic injection composite mortar of the present invention, wherein, it is made up of the component of following mass percent：Dry sand
50%th, cement 30%, flyash 10%, anhydrous gypsum 5% and accelerator 5%.
Mining inorganic injection composite mortar of the present invention, wherein, the accelerator is aluminum oxide clinker.
Mining inorganic injection composite mortar of the present invention, wherein, the cement is Portland cement.
Mining inorganic injection composite mortar of the present invention, wherein, particle diameter≤5 μm of the dry sand.
The preparation method of mining inorganic injection composite mortar of the present invention, comprises the following steps：
(1) prepare raw material by proportioning, cement and anhydrous gypsum are mixed first, obtain compound A；By flyash and dry sand
Mixing, obtains compound B；
(2) the 1/3 compound A is firstly added in mixer, then adds 1/2 the compound B, Ran Houjia
Enter the 1/3 compound A, add the accelerator, finally sequentially add the remaining 1/2 compound B and 1/3
The compound A, it is sufficiently stirred under normal temperature, mixing time 7-10min, mixing speed 85-95r/min；
(3) after stirring terminates, start elevator, open baiting valve, by elevator material lifting to finished bin, packing
Obtain product.
The present invention uses flyash, is to utilize the potential pozzolanic activity of flyash.Pozzolanic activity, refer to silicate material
Material can not only harden in atmosphere with alkali substance reaction, its products such as calcium hydroxides at a certain temperature after levigate
The characteristic of hardening can also be continued in water.According to this characteristic flyash can be allowed to replace water of the raw clay as function admirable
The admixture of mud and concrete.Adding coal ash replaces part of cement or fine aggregate in concrete, can not only reduce cost, and
And the workability of concrete can be improved, waterproof, gas, Sulphate-resistant property and chemistry-resistant characteristic is improved, reduces aquation
Heat, the resistance to elevated temperatures for improving concrete, the particle separation and bleed phenomenon that mitigates, the contraction of reduction concrete and cracking.
Beneficial effect of the present invention：
Mining inorganic injection composite mortar of the present invention, rebound low, waterproof, freeze proof, anti-ice salt, not chloride,
Upper overhead it can construct；Once construct, coating thickness can be more than 20cm；On the premise of construction quality and construction effect is ensured,
Shotcrete thickness is reduced, and so as to reduce labor intensity, reduces labour cost, cost-effective.
The preparation method of mining inorganic injection composite mortar of the present invention, by the way that each raw material, Ke Yiti is added portionwise
The performance of high composite mortar, technique is simple, easily operated.
Embodiment
Embodiment 1
A kind of mining inorganic injection composite mortar, is made up of the component of following mass percent：Dry sand 50%, cement
30%th, flyash 10%, anhydrous gypsum 5% and accelerator 5%, the cement are Portland cement, and the accelerator is
Aluminum oxide clinker.
The preparation method of mining inorganic injection composite mortar described in the present embodiment, comprises the following steps：
(1) prepare raw material by proportioning, cement and anhydrous gypsum are mixed first, obtain compound A；By flyash and dry sand
Mixing, obtains compound B；
(2) the 1/3 compound A is firstly added in mixer, then adds 1/2 the compound B, Ran Houjia
Enter the 1/3 compound A, add the accelerator, finally sequentially add the remaining 1/2 compound B and 1/3
The compound A, it is sufficiently stirred under normal temperature, mixing time 7min, mixing speed 85r/min；
(3) after stirring terminates, start elevator, open baiting valve, by elevator material lifting to finished bin, packing
Product is obtained, main performance is:3d compression strength (Mpa)：9.2；7d compression strength (Mpa)：30.1；28d compression strength
(Mpa)：35.6.3d rupture strengths (Mpa)：1.9；7d rupture strengths (Mpa)：4.3；28d rupture strengths (Mpa)：6.0.
Embodiment 2
A kind of mining inorganic injection composite mortar, is made up of the component of following mass percent：Dry sand 85%, cement
10%th, flyash 3%, anhydrous gypsum 1% and accelerator 1%, the cement are Portland cement, and the accelerator is aluminium
Oxygen clinker.
The preparation method of mining inorganic injection composite mortar described in the present embodiment, comprises the following steps：
(1) prepare raw material by proportioning, cement and anhydrous gypsum are mixed first, obtain compound A；By flyash and dry sand
Mixing, obtains compound B；
(2) the 1/3 compound A is firstly added in mixer, then adds 1/2 the compound B, Ran Houjia
Enter the 1/3 compound A, add the accelerator, finally sequentially add the remaining 1/2 compound B and 1/3
The compound A, it is sufficiently stirred under normal temperature, mixing time 10min, mixing speed 85r/min；
(3) after stirring terminates, start elevator, open baiting valve, by elevator material lifting to finished bin, packing
Product is obtained, main performance is:3d compression strength (Mpa)：8.4；7d compression strength (Mpa)：27.2；28d compression strength
(Mpa)：32.1.3d rupture strengths (Mpa)：1.8；7d rupture strengths (Mpa)：4.1；28d rupture strengths (Mpa)：5.8.
Embodiment 3
A kind of mining inorganic injection composite mortar, is made up of the component of following mass percent：Dry sand 10%, cement
50%th, flyash 20%, anhydrous gypsum 10% and accelerator 10%, the cement are Portland cement, the accelerator
For aluminum oxide clinker.
The preparation method of mining inorganic injection composite mortar described in the present embodiment, comprises the following steps：
(1) prepare raw material by proportioning, cement and anhydrous gypsum are mixed first, obtain compound A；By flyash and dry sand
Mixing, obtains compound B；
(2) the 1/3 compound A is firstly added in mixer, then adds 1/2 the compound B, Ran Houjia
Enter the 1/3 compound A, add the accelerator, finally sequentially add the remaining 1/2 compound B and 1/3
The compound A, it is sufficiently stirred under normal temperature, mixing time 7min, mixing speed 95r/min；
(3) after stirring terminates, start elevator, open baiting valve, by elevator material lifting to finished bin, packing
Product is obtained, main performance is:3d compression strength (Mpa)：8.9；7d compression strength (Mpa)：28.7；28d compression strength
(Mpa)：33.5.3d rupture strengths (Mpa)：1.6；7d rupture strengths (Mpa)：4.1；28d rupture strengths (Mpa)：5.5.
Embodiment 4
A kind of mining inorganic injection composite mortar, is made up of the component of following mass percent：Dry sand 40%, cement
19%th, flyash 1%, anhydrous gypsum 20% and accelerator 20%, the cement are Portland cement, and the accelerator is
Aluminum oxide clinker.
The preparation method of mining inorganic injection composite mortar described in the present embodiment, comprises the following steps：
(1) prepare raw material by proportioning, cement and anhydrous gypsum are mixed first, obtain compound A；By flyash and dry sand
Mixing, obtains compound B；
(2) the 1/3 compound A is firstly added in mixer, then adds 1/2 the compound B, Ran Houjia
Enter the 1/3 compound A, add the accelerator, finally sequentially add the remaining 1/2 compound B and 1/3
The compound A, it is sufficiently stirred under normal temperature, mixing time 10min, mixing speed 95r/min；
(3) after stirring terminates, start elevator, open baiting valve, by elevator material lifting to finished bin, packing
Product is obtained, main performance is:3d compression strength (Mpa)：7.5；7d compression strength (Mpa)：25.1；28d compression strength
(Mpa)：30.6.3d rupture strengths (Mpa)：1.5；7d rupture strengths (Mpa)：4.0；28d rupture strengths (Mpa)：5.2.
Mining inorganic injection composite mortar of the present invention, spraying machine must be entered by sieving castor when in use, deposited
2h, the distance of jet hole to jet face is not to be exceeded in time：Spray top 0.8-1m, sprays wall 0.6-0.8m, blast is 0.1- at nozzle
0.2MPa, typically partly enclose the land during injection uniformly slowly mobile, screw diameter 30cm or so by the circle pressure of helical trajectory one.
The technical parameter of mining inorganic injection composite mortar of the present invention is as shown in table 1.
The inorganic technical parameter tables of data for spraying composite mortar that table 1 is mining
| Project | Numerical value |
| 3d compression strength/MPa | ≥7.5 |
| 7d compression strength/MPa | ≥25 |
| 28d compression strength/MPa | ≥30 |
| 3d rupture strengths/MPa | ≥1.5 |
| 7d rupture strengths/MPa | ≥4.0 |
| 28d rupture strengths/MPa | ≥5.0 |
| Setting time/min | 5-10 |
| Particle diameter/mm | 0-4 |
| Wet density/kg/m3 | About 2000-2200 |
| Construction temperature/DEG C | 5-35 |
| Water consumption | About 0.13-0.15 |
| Yield (wet mortar/dry powder)/L/Kg | 19/40 |
| Consumption/kg/m2/mm | About 2 |
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made, it all should fall into the protection domain of claims of the present invention determination.
Claims (7)
- A kind of 1. mining inorganic injection composite mortar, it is characterised in that：It is made up of the component of following mass percent：Dry sand 10- 85%th, cement 10-50%, flyash 1-20%, anhydrous gypsum 1-20% and accelerator 1-20%.
- 2. mining inorganic injection composite mortar according to claim 1, it is characterised in that：By the group of following mass percent It is grouped into：Dry sand 10-50%, cement 30-50%, flyash 10-20%, anhydrous gypsum 5-10% and accelerator 5-10%.
- 3. mining inorganic injection composite mortar according to claim 1, it is characterised in that：By the group of following mass percent It is grouped into：Dry sand 50%, cement 30%, flyash 10%, anhydrous gypsum 5% and accelerator 5%.
- 4. mining inorganic injection composite mortar according to claim 1, it is characterised in that：The accelerator is that alumina is ripe Material.
- 5. mining inorganic injection composite mortar according to claim 1, it is characterised in that：The cement is normal silicate Cement.
- 6. the mining inorganic injection composite mortar according to claim 1-5 any one, it is characterised in that：The dry sand Particle diameter≤5 μm.
- 7. the preparation method of the mining inorganic injection composite mortar described in claim 1-6 any one, it is characterised in that：Including Following steps：(1) prepare raw material by proportioning, cement and anhydrous gypsum are mixed first, obtain compound A；Flyash and dry sand are mixed Close, obtain compound B；(2) the 1/3 compound A is firstly added in mixer, the 1/2 compound B is then added, then adds 1/ The 3 compound A, adds the accelerator, finally sequentially add remaining 1/2 the compound B and 1/3 it is described Compound A, it is sufficiently stirred under normal temperature, mixing time 7-10min, mixing speed 85-95r/min；(3) after stirring terminates, start elevator, open baiting valve, it is by elevator that material lifting to finished bin, packing is i.e. available Product.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711161841.0A CN107793114A (en) | 2017-11-21 | 2017-11-21 | A kind of mining inorganic injection composite mortar and preparation method thereof |
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| CN201711161841.0A CN107793114A (en) | 2017-11-21 | 2017-11-21 | A kind of mining inorganic injection composite mortar and preparation method thereof |
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| CN107793114A true CN107793114A (en) | 2018-03-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110981341A (en) * | 2019-12-13 | 2020-04-10 | 阳泉市合泰通工贸有限公司 | Mining high-strength composite mortar material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101255693A (en) * | 2008-04-17 | 2008-09-03 | 徐玉杰 | Ground strengthening cement mortar rotary-spraying pile and construction method |
| CN102659379A (en) * | 2012-04-28 | 2012-09-12 | 赵嘉珩 | Quickly-cured slurry for on-site spray and construction |
| CN106365555A (en) * | 2016-08-29 | 2017-02-01 | 中建商品混凝土（福建）有限公司 | Mechanical injection wet-mixing plastering mortar and preparing method thereof |
-
2017
- 2017-11-21 CN CN201711161841.0A patent/CN107793114A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101255693A (en) * | 2008-04-17 | 2008-09-03 | 徐玉杰 | Ground strengthening cement mortar rotary-spraying pile and construction method |
| CN102659379A (en) * | 2012-04-28 | 2012-09-12 | 赵嘉珩 | Quickly-cured slurry for on-site spray and construction |
| CN106365555A (en) * | 2016-08-29 | 2017-02-01 | 中建商品混凝土（福建）有限公司 | Mechanical injection wet-mixing plastering mortar and preparing method thereof |
Non-Patent Citations (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110981341A (en) * | 2019-12-13 | 2020-04-10 | 阳泉市合泰通工贸有限公司 | Mining high-strength composite mortar material and preparation method thereof |
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