CN107053447A - A kind of maintenance process of cement products - Google Patents

A kind of maintenance process of cement products Download PDF

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Publication number
CN107053447A
CN107053447A CN201710366194.0A CN201710366194A CN107053447A CN 107053447 A CN107053447 A CN 107053447A CN 201710366194 A CN201710366194 A CN 201710366194A CN 107053447 A CN107053447 A CN 107053447A
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parts
cement products
maintenance
water
mixed
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CN201710366194.0A
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CN107053447B (en
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陆志斌
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GUANGDONG YONGJI CONSTRUCTION FOUNDATION Co.,Ltd.
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Guangxi Rui Gui Han Agriculture Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B28B11/245Curing concrete articles
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/04Preventing evaporation of the mixing water

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The present invention relates to cement products technical field, specifically related to a kind of maintenance process of cement products, its step includes (1) and stirs cast, (2) once conserve, (3) secondary maintenance, (4) it is molded naturally, added in cement products modified montmorillonite used, maintained in a maintenance processes under higher pressure cooperation is at the uniform velocity moved and carry out steam curing and sprinkling sealing compound, under each mutually coordinated effect of step, it is smooth with surface inside final obtained cement products, without sand holes, overall load weight is higher, toughness is preferable, it is practical, it is adapted to promote in this area.

Description

A kind of maintenance process of cement products
【Technical field】
The present invention relates to cement products technical field, and in particular to a kind of maintenance process of cement products.
【Background technology】
Cement is widely used in building trade as the main component of building gel rubber material.Cement products was solidifying Maintenance in journey directly influences the quality of cement products, and traditional maintenance process to cement products is mostly in cement system Product pour shaping relief its natural cooling, and then carrying out water spray to cement products again drenches, but some cement products thickness is too Greatly, along with the constitutive material water imbibition of cement products is not strong, cause moisture can not penetrate into the depths of cement products, cause water Mud product, because water shortage produces contraction, is internally formed hole or desertification, and then reduce cement system during coagulation forming The intensity of product, there are certain potential safety hazard, severe patient is also after so underproof cement products is applied into infrastructure The generation of major accident can be caused.Therefore, cement products needs to conserve well after shaping is poured just can guarantee that cement products Quality, nowadays occur in that many cement products curing agent, sealing compound be sprayed at the surface of cement products to cement system Product are conserved and moisturizing, but effect is not so well, and it is desirable to a kind of maintenance process of more preferable cement products.
【The content of the invention】
It is an object of the invention to:It is bad for existing cement products curing method effect, cause obtained cement products The problem of quality is not good is there is provided a kind of maintenance process of cement products, and the cement products intensity that the maintenance process is obtained is high, quality It is good.
To achieve these goals, the technical solution adopted by the present invention is as follows:
A kind of maintenance process of cement products, comprises the following steps:
(1) constitutive material of cement products include it is modified montmorillonite used, it is described modified montmorillonite used to occupy whole raw material gross weight 15-25%, then by each raw material of cement products and water according to mass ratio 1:2.5-2.8 being put into mixer, mix Uniformly, then mixture is poured into mould;
(2) cement products not being stripped is put into fog room and once conserved, by dynamic in a maintenance processes Power apparatus keeps cement products to do uniform circular motion around fog room, and the pressure for keeping fog room is 0.5-0.8MPa, toward water Mud product sprays sealing compound, and then leading to steam toward fog room carries out steam curing to cement products, and the steam-cured time is 1-2 Hour, each steam curing sprays sealing compound toward cement products again after terminating, and steam curing is then carried out again, and so on 2-3 Secondary, once maintenance terminates, and is then stripped;
(3) cement products after the demoulding is rested on into fog room, then carries out secondary maintenance, secondary maintenance stops steam and supported Shield, the pressure that fog room is kept in secondary maintenance processes is 0.3-0.5MPa, and temperature is 35-45 DEG C, during secondary maintenance every 2-3 hour water drenches cement products, and the time of secondary maintenance is 8-10 hours;
(4) after secondary maintenance terminates, cement products is stood outdoor, its natural cooling is allowed, until shaping.
Wherein, the sealing compound is made up of the raw material of following parts by weight:12-18 parts of kaolin, 12-18 parts of flyash, stone 15-20 parts of ashes, 15-20 parts of talcum powder, 50-80 parts of sodium silicate aqueous solution, 15-20 parts of acetone, 20-30 parts of ethylenediamine, silicon are molten 6-10 parts of glue, 5-10 parts of sodium thiosulfate, 10-15 parts of diatomite, 8-16 parts of sodium carbonate, 2-4 parts of calcium nitrate, calcium formate water solution 20-30 parts.
In the present invention, further, the preparation method of the sealing compound is:A) in parts by weight, by the kaolinite Soil, flyash, pulverized limestone, talcum powder mixing are put into grinder and wear into mixed-powder, and the particle diameter for making mixed-powder is 0.8- 1.2mm, then by mixed-powder, calcining is put into sodium silicate aqueous solution rapidly after 1-2 hours at a temperature of 400-450 DEG C, is stirred Mix and be cooled fast to normal temperature to after being completely dissolved, obtain mixed solution;B) temperature of mixed solution is raised to 60-70 DEG C, addition by Sodium thiosulfate, diatomite, sodium carbonate, calcium nitrate, stirring be completely dissolved after stop heating, finally add acetone, ethylenediamine, Ludox, calcium formate water solution, stir to normal temperature, produce sealing compound.
In the present invention, further, the modified montmorillonite used preparation method is:A) in parts by weight, by 25-40 Part acrylamide is mixed with 50-80 parts of distilled water, and stirring is completely dissolved acrylamide, then toward molten under the conditions of frozen water cooling The pH of sodium hydrate regulator solution is added in liquid to neutrality, 25-40 parts of acrylic acid, 15-30 parts of montmorillonites is sequentially added, has stirred 5-10 parts of sodium peroxydisulfates, the double acrylic esters of 5-10 parts of ethylene glycol are sequentially added after fully dissolved, mixture are put after stirring It is molded in micro-wave oven with microwave radiation, the time of radiation is 1-2 hours;B) by the product obtained in step a) anhydrous Soaked 0.5-1 hours in ethanol, be then placed in dryer and dried 3-4 hours at 70-80 DEG C, by the product after drying Clay into power shape, produce modified montmorillonite used after being crushed with pulverizer.
In the present invention, further, in step (4), the cement products is placed in behind outdoor, and cement products is entered daily Row water drenching, continues 5-7 days.
In the present invention, further, during secondary maintenance, the humidity for keeping fog room is 50-60%.
In the present invention, further, the type of cooling in step a) is that the container for filling mixed solution is put into frozen water It is middle to be cooled down.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows:
1st, the maintenance process of cement products of the invention, added in the preparation process of cement products it is modified montmorillonite used, Montmorillonite by dissolving, immersion, radiation, drying after, with very strong absorptive and water-retaining property, it is modified montmorillonite used can be in water The coagulation forming stage of mud product suppresses the volatilization of moisture well, moisture is utilized well;Meanwhile, cement products exists Once the maintenance stage maintains coordinates the at the uniform velocity movement of cement products to reduce in cement products under higher pressure, High Voltage The generation of portion's hole, then cement products progress moisturizing and sprinkling sealing compound are filled out to cement products progress hole by steam maintenance Mend, under each step is mutually coordinated, can make cement products that there is very high intensity after being molded, total quality is more preferably.
2nd, the maintenance process of cement products of the invention, in sealing compound, with kaolin, flyash, pulverized limestone, talcum powder As the solute for filling up hole and sand holes, the mixed solution that sodium silicate aqueous solution is obtained is dissolved into, possesses stronger osmotic effect, But cementitiousness is weaker after solute is separated out, being separated out even if solute at hole can not also be bonded to one with cement products, because And the curing agent constituted with acetone, ethylenediamine, Ludox is added, solute can be allowed in precipitation with good caking property, and Can promote its setting rate, but add can make after curing agent solute atoms mutually bond in the solution under make composition particles Particle diameter increases, and causes solute can not follow the less hole of solvent entrance aperture, thus adds with sodium thiosulfate, diatom Soil, sodium carbonate, the blender of calcium nitrate composition, can allow the composition particles being bonded together to have and shrink elasticity well, and Calcium formate water solution is used for the mobility for promoting solution, under each mutually coordinated effect of composition, the effect of sealing compound is obtained fully Play.
3rd, the maintenance process of cement products of the invention, a variety of curing steps cooperate under coordination, can allow final Obtained cement products has very high intensity, internal imporosity, surfacing, flawless without sand holes, and total quality is good, and this is supported Maintaining method is practical, is adapted to promote in this area.
【Embodiment】
Embodiment 1:
A kind of maintenance process of cement products, comprises the following steps:
(1) constitutive material of cement products include it is modified montmorillonite used, it is described modified montmorillonite used to occupy whole raw material gross weight 15%, then by each raw material of cement products and water according to mass ratio 1:2.5 are put into mixer, are mixed evenly, so Mixture is poured into mould afterwards;
(2) cement products not being stripped is put into fog room and once conserved, by dynamic in a maintenance processes Power apparatus keeps cement products to do uniform circular motion around fog room, and the pressure for keeping fog room is 0.5MPa, toward cement system Product spray sealing compound, and then leading to steam toward fog room carries out steam curing to cement products, and the steam-cured time is 1 hour, Each steam curing sprays sealing compound toward cement products again after terminating, and steam curing is then carried out again, and so on 2 times, once Maintenance terminates, and is then stripped;
(3) cement products after the demoulding is rested on into fog room, then carries out secondary maintenance, secondary maintenance stops steam and supported The pressure that fog room is kept in shield, secondary maintenance processes is 0.3MPa, and temperature is 35 DEG C, and humidity is 50%, during secondary maintenance Cement products was drenched with water every 2 hours, the time of secondary maintenance is 8 hours;
(4) after secondary maintenance terminates, cement products is stood outdoor, its natural cooling is allowed, until shaping, during which right daily Cement products carries out water drenching, continues 5 days.
Wherein, the sealing compound is made up of the raw material of following parts by weight:12 parts of kaolin, 12 parts of flyash, pulverized limestone 15 Part, 15 parts of talcum powder, 50 parts of sodium silicate aqueous solution, 15 parts of acetone, 20 parts of ethylenediamine, 6 parts of Ludox, 5 parts of sodium thiosulfate, silicon 10 parts of diatomaceous earth, 8 parts of sodium carbonate, 2 parts of calcium nitrate, 20 parts of calcium formate water solution.The preparation method of the sealing compound is:A) according to Parts by weight meter, the kaolin, flyash, pulverized limestone, talcum powder are mixed to be put into grinder and wear into mixed-powder, makes mixing The particle diameter of powder is 0.8mm, and then by mixed-powder, rapid after calcining 1 hour at a temperature of 400 DEG C to be put into sodium metasilicate water-soluble In liquid, stirring is cooled fast to normal temperature to after being completely dissolved with frozen water, obtains mixed solution;B) is by the temperature liter of mixed solution To 60 DEG C, sodium thiosulfate, diatomite, sodium carbonate, calcium nitrate are added, stirring stops heating after being completely dissolved, finally added Acetone, ethylenediamine, Ludox, calcium formate water solution, stir to normal temperature, produce sealing compound.
Wherein, the modified montmorillonite used preparation method is:A) in parts by weight, by 25 parts of acrylamides and 50 parts Distilled water is mixed, and stirring is completely dissolved acrylamide, is then adjusted under the conditions of frozen water cooling toward addition sodium hydroxide in solution The pH of solution is saved to neutrality, 25 parts of acrylic acid, 15 parts of montmorillonites are sequentially added, stirring sequentially adds 5 parts of mistakes after being completely dissolved Mixture, is put into micro-wave oven and is molded with microwave radiation by sodium sulphate, the double acrylic esters of 5 parts of ethylene glycol after stirring, spoke The time penetrated is 1 hour;B) soaks the product obtained in step a) 0.5 hour in absolute ethyl alcohol, is then placed on baking Dried 3 hours at 70 DEG C in dry machine, shape of being clayed into power after the product after drying is crushed with pulverizer, produce modified cover and take off Stone.
Embodiment 2:
A kind of maintenance process of cement products, comprises the following steps:
(1) constitutive material of cement products include it is modified montmorillonite used, it is described modified montmorillonite used to occupy whole raw material gross weight 20%, then by each raw material of cement products and water according to mass ratio 1:2.65 are put into mixer, are mixed evenly, so Mixture is poured into mould afterwards;
(2) cement products not being stripped is put into fog room and once conserved, by dynamic in a maintenance processes Power apparatus keeps cement products to do uniform circular motion around fog room, and the pressure for keeping fog room is 0.65MPa, toward cement system Product spray sealing compound, and then leading to steam toward fog room carries out steam curing to cement products, and the steam-cured time is 1.5 small When, each steam curing sprays sealing compound toward cement products again after terminating, and steam curing is then carried out again, and so on 2 times, one Secondary maintenance terminates, and is then stripped;
(3) cement products after the demoulding is rested on into fog room, then carries out secondary maintenance, secondary maintenance stops steam and supported The pressure that fog room is kept in shield, secondary maintenance processes is 0.4MPa, and temperature is 40 DEG C, and humidity is 55%, during secondary maintenance Cement products was drenched with water every 2.5 hours, the time of secondary maintenance is 9 hours;
(4) after secondary maintenance terminates, cement products is stood outdoor, its natural cooling is allowed, until shaping, during which right daily Cement products carries out water drenching, continues 6 days.
Wherein, the sealing compound is made up of the raw material of following parts by weight:15 parts of kaolin, 15 parts of flyash, pulverized limestone 17.5 parts, 17.5 parts of talcum powder, 65 parts of sodium silicate aqueous solution, 17.5 parts of acetone, 20 parts of ethylenediamine, 8 parts of Ludox, thiosulfuric acid 7.5 parts of sodium, 12.5 parts of diatomite, 12 parts of sodium carbonate, 3 parts of calcium nitrate, 25 parts of calcium formate water solution.The preparation side of the sealing compound Method is:A) in parts by weight, by the kaolin, flyash, pulverized limestone, talcum powder mix be put into grinder wear into it is mixed Powder is closed, the particle diameter for making mixed-powder is 1mm, then calcining is put rapidly after 1.5 hours at a temperature of 425 DEG C by mixed-powder Enter in sodium silicate aqueous solution, stirring is cooled fast to normal temperature to after being completely dissolved with frozen water, obtains mixed solution;B) will be mixed The temperature of solution is raised to 65 DEG C, adds sodium thiosulfate, diatomite, sodium carbonate, calcium nitrate, and stirring stops adding after being completely dissolved Heat, finally adds acetone, ethylenediamine, Ludox, calcium formate water solution, stirs to normal temperature, produces sealing compound.
Wherein, the modified montmorillonite used preparation method is:A) in parts by weight, by 33 parts of acrylamides and 65 parts Distilled water is mixed, and stirring is completely dissolved acrylamide, is then adjusted under the conditions of frozen water cooling toward addition sodium hydroxide in solution The pH of solution is saved to neutrality, 33 parts of acrylic acid, 23 parts of montmorillonites are sequentially added, stirring sequentially adds 7.5 parts after being completely dissolved The double acrylic esters of sodium peroxydisulfate, 7.5 parts of ethylene glycol, after stirring by mixture be put into micro-wave oven with microwave radiation into Type, the time of radiation is 1.5 hours;B) soaks the product obtained in step a) 0.75 hour in absolute ethyl alcohol, then will It is placed in dryer is dried 3.5 hours at 75 DEG C, and shape of being clayed into power after the product after drying is crushed with pulverizer is produced It is modified montmorillonite used.
Embodiment 3:
A kind of maintenance process of cement products, comprises the following steps:
(1) constitutive material of cement products include it is modified montmorillonite used, it is described modified montmorillonite used to occupy whole raw material gross weight 25%, then by each raw material of cement products and water according to mass ratio 1:2.8 are put into mixer, are mixed evenly, so Mixture is poured into mould afterwards;
(2) cement products not being stripped is put into fog room and once conserved, by dynamic in a maintenance processes Power apparatus keeps cement products to do uniform circular motion around fog room, and the pressure for keeping fog room is 0.8MPa, toward cement system Product spray sealing compound, and then leading to steam toward fog room carries out steam curing to cement products, and the steam-cured time is 2 hours, Each steam curing sprays sealing compound toward cement products again after terminating, and steam curing is then carried out again, and so on 3 times, once Maintenance terminates, and is then stripped;
(3) cement products after the demoulding is rested on into fog room, then carries out secondary maintenance, secondary maintenance stops steam and supported The pressure that fog room is kept in shield, secondary maintenance processes is 0.5MPa, and temperature is 45 DEG C, and humidity is 60%, during secondary maintenance Cement products was drenched with water every 3 hours, the time of secondary maintenance is 10 hours;
(4) after secondary maintenance terminates, cement products is stood outdoor, its natural cooling is allowed, until shaping, during which right daily Cement products carries out water drenching, continues 7 days.
Wherein, the sealing compound is made up of the raw material of following parts by weight:18 parts of kaolin, 18 parts of flyash, pulverized limestone 20 Part, 20 parts of talcum powder, 80 parts of sodium silicate aqueous solution, 20 parts of acetone, 30 parts of ethylenediamine, 10 parts of Ludox, 10 parts of sodium thiosulfate, 15 parts of diatomite, 16 parts of sodium carbonate, 4 parts of calcium nitrate, 30 parts of calcium formate water solution.The preparation method of the sealing compound is:A) is pressed According to parts by weight meter, the kaolin, flyash, pulverized limestone, talcum powder are mixed to be put into grinder and wear into mixed-powder, makes to mix The particle diameter for closing powder is 1.2mm, and then by mixed-powder, calcining is put into sodium metasilicate water rapidly after 2 hours at a temperature of 450 DEG C In solution, stirring is cooled fast to normal temperature to after being completely dissolved with frozen water, obtains mixed solution;B) is by the temperature of mixed solution 70 DEG C are raised to, sodium thiosulfate, diatomite, sodium carbonate, calcium nitrate is added, stirring stops heating after being completely dissolved, finally added again Enter acetone, ethylenediamine, Ludox, calcium formate water solution, stir to normal temperature, produce sealing compound.
Wherein, the modified montmorillonite used preparation method is:A) in parts by weight, by 40 parts of acrylamides and 80 parts Distilled water is mixed, and stirring is completely dissolved acrylamide, is then adjusted under the conditions of frozen water cooling toward addition sodium hydroxide in solution The pH of solution is saved to neutrality, 40 parts of acrylic acid, 30 parts of montmorillonites are sequentially added, stirring sequentially adds 10 parts of mistakes after being completely dissolved Mixture, is put into micro-wave oven and is molded with microwave radiation by sodium sulphate, the double acrylic esters of 10 parts of ethylene glycol after stirring, spoke The time penetrated is 2 hours;B) soaks the product obtained in step a) 1 hour in absolute ethyl alcohol, is then placed on drying Dried 4 hours at 80 DEG C in machine, shape of being clayed into power after the product after drying is crushed with pulverizer is produced modified montmorillonite used.
In order to further prove the characteristic of the present invention, following contrast test is now done:
Contrast groups 1:In the raw material composition of cement products, remove modified montmorillonite used, remaining mode is in strict accordance with embodiment 2 Carry out.
Contrast groups 2:In a maintenance processes, remove sprinkling sealing compound, remaining mode is carried out in strict accordance with embodiment 2.
Contrast groups 3:In a maintenance processes, remove steam curing, remaining mode is carried out in strict accordance with embodiment 2.
The specification of cement products is set as 70cm*60cm*7cm, the cement system for taking contrast groups 1-3 and embodiment 1-3 to be made Product sample, determines each data, obtained data such as following table:
By upper table as can be seen that the maintenance process of the cement products of the present invention, inside the cement products finally given with Surface is smooth, without sand holes, and overall load weight is higher, and toughness is preferably, practical, is adapted to promote in this area.
Described above is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair The equal change or modification change completed under bright patent claim, the technical spirit suggested by all present invention, all should belong to Cover the scope of the claims in the present invention.

Claims (6)

1. a kind of maintenance process of cement products, it is characterised in that:Comprise the following steps:
(1) constitutive material of cement products includes modified montmorillonite used, the modified montmorillonite used 15- for occupying whole raw material gross weight 25%, then by each raw material of cement products and water according to mass ratio 1:2.5-2.8 is put into mixer, is mixed evenly, Then mixture is poured into mould;
(2) cement products not being stripped is put into fog room and once conserved, filled in a maintenance processes by power Put holding cement products and do uniform circular motion around fog room, the pressure for keeping fog room is 0.5-0.8MPa, toward cement system Product spray sealing compound, and then leading to steam toward fog room carries out steam curing to cement products, and the steam-cured time is that 1-2 is small When, each steam curing sprays sealing compound toward cement products again after terminating, and steam curing is then carried out again, and so on 2-3 times, Once maintenance terminates, and is then stripped;
(3) cement products after the demoulding is rested on into fog room, then carries out secondary maintenance, secondary maintenance stops steam curing, The pressure that fog room is kept in secondary maintenance processes is 0.3-0.5MPa, and temperature is 35-45 DEG C, every 2-3 during secondary maintenance Hour water drenches cement products, and the time of secondary maintenance is 8-10 hours;
(4) after secondary maintenance terminates, cement products is stood outdoor, its natural cooling is allowed, until shaping.
Wherein, the sealing compound is made up of the raw material of following parts by weight:12-18 parts of kaolin, 12-18 parts of flyash, pulverized limestone 15-20 parts, 15-20 parts of talcum powder, 50-80 parts of sodium silicate aqueous solution, 15-20 parts of acetone, 20-30 parts of ethylenediamine, Ludox 6- 10 parts, 5-10 parts of sodium thiosulfate, 10-15 parts of diatomite, 8-16 parts of sodium carbonate, 2-4 parts of calcium nitrate, calcium formate water solution 20- 30 parts.
2. a kind of maintenance process of cement products according to claim 1, it is characterised in that:The preparation side of the sealing compound Method is:A) in parts by weight, by the kaolin, flyash, pulverized limestone, talcum powder mix be put into grinder wear into it is mixed Powder is closed, the particle diameter for making mixed-powder is 0.8-1.2mm, then mixed-powder is calcined to 1-2 at a temperature of 400-450 DEG C small When after be put into sodium silicate aqueous solution rapidly, stirring be cooled fast to normal temperature to after being completely dissolved, obtain mixed solution;B) will The temperature of mixed solution is raised to 60-70 DEG C, sodium thiosulfate, diatomite, sodium carbonate, calcium nitrate is added, after stirring is completely dissolved Stop heating, finally add acetone, ethylenediamine, Ludox, calcium formate water solution, stir to normal temperature, produce sealing compound.
3. a kind of maintenance process of cement products according to claim 1, it is characterised in that:The modified montmorillonite used system Preparation Method is:A) in parts by weight, 25-40 parts of acrylamides are mixed with 50-80 parts of distilled water by, and stirring makes acrylamide It is completely dissolved, then the pH under the conditions of frozen water cooling toward addition sodium hydrate regulator solution in solution is sequentially added to neutrality 25-40 parts of acrylic acid, 15-30 parts of montmorillonites, stirring sequentially add 5-10 parts of sodium peroxydisulfates, 5-10 parts of second two after being completely dissolved Mixture, is put into micro-wave oven and is molded with microwave radiation by the double acrylic esters of alcohol after stirring, and the time of radiation is small for 1-2 When;B) soaks the product obtained in step a) 0.5-1 hours in absolute ethyl alcohol, is then placed in dryer in 70- Dried 3-4 hours at 80 DEG C, shape of being clayed into power after the product after drying is crushed with pulverizer is produced modified montmorillonite used.
4. a kind of maintenance process of cement products according to claim 1, it is characterised in that:In step (4), the water Mud product is placed in behind outdoor, carries out water drenching to cement products daily, continues 5-7 days.
5. a kind of maintenance process of cement products according to claim 1, it is characterised in that:In the process of secondary maintenance In, the humidity for keeping fog room is 50-60%.
6. a kind of maintenance process of cement products according to claim 4, it is characterised in that:Cooling side in step a) Formula is cooled down for the container for filling mixed solution is put into frozen water.
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CN110173122A (en) * 2019-05-06 2019-08-27 中国铁道科学研究院集团有限公司铁道建筑研究所 It is a kind of can dense surface enhancing the compound maintenance process of concrete heat-insulating moisturizing
CN113072392A (en) * 2021-03-30 2021-07-06 南通铁建建设构件有限公司 Remote intelligent high-strength anti-seepage shield segment maintenance method

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Publication number Priority date Publication date Assignee Title
CN108996641A (en) * 2018-08-30 2018-12-14 贺州市骏鑫矿产品有限责任公司 A method of iron waste liquid is removed using red mud processing potassium feldspar acidleach
CN108996641B (en) * 2018-08-30 2021-08-24 贺州市骏鑫矿产品有限责任公司 Method for treating acid leaching and iron removing waste liquid of potassium feldspar by utilizing red mud
CN110173122A (en) * 2019-05-06 2019-08-27 中国铁道科学研究院集团有限公司铁道建筑研究所 It is a kind of can dense surface enhancing the compound maintenance process of concrete heat-insulating moisturizing
CN110173122B (en) * 2019-05-06 2021-11-12 中国铁道科学研究院集团有限公司铁道建筑研究所 Concrete heat-preservation and moisture-retention compound curing method capable of realizing surface compaction and reinforcement
CN113072392A (en) * 2021-03-30 2021-07-06 南通铁建建设构件有限公司 Remote intelligent high-strength anti-seepage shield segment maintenance method

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