CN107602009A - A kind of strength cement-based grouting material - Google Patents
A kind of strength cement-based grouting material Download PDFInfo
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- CN107602009A CN107602009A CN201710803938.0A CN201710803938A CN107602009A CN 107602009 A CN107602009 A CN 107602009A CN 201710803938 A CN201710803938 A CN 201710803938A CN 107602009 A CN107602009 A CN 107602009A
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Abstract
The invention discloses a kind of strength cement-based grouting material, belong to building material technical field.After the present invention melts asphalt powder, high-voltage electrostatic spinning, pitch precursor is obtained, pitch precursor and liquor potassic permanganate immersion are aoxidized again, oxidized asphalt fiber is obtained, then by nano magnesia, silane coupler and ethanol solution mixing, ultrasonic disperse, add oxidized asphalt fiber and are stirred, tetraethyl orthosilicate is then added dropwise, after being stirred, filtering, washing, dry, charing, produce modified pitch fiber；Aluminium powder and glycerine are stirred, Gluten is added and is stirred, adds water swelling, stands, ultrasonic disperse, produces modified aluminium powder dispersion liquid；Cement, quartz sand, water, water reducer, flyash, miberal powder, slag, defoamer, water-loss reducer, modified pitch fiber and modified aluminium powder are mixed again, produce strength cement-based grouting material.Strength cement-based grouting material obtained by technical solution of the present invention has the advantages of good mobility, early strength and expansion character.
Description
Technical field
The invention discloses a kind of strength cement-based grouting material, belong to building material technical field.
Background technology
With rapid development of economy, people also continue to develop to the demand of building, and many existing buildings are either outer
Sight situation still uses function, can not meet the requirement of the modern life, and urgent need is reinforced and transformed.Cement-based grout material
Material is a kind of most material of application, and it has the advantages that good endurance, intensity are high, nontoxic, pollution-free, cheap.At present
Scholar has carried out many researchs to cement-based grouting material, and achieves many achievements, for further exploitation higher performance
Grouting material provide Research foundation.
It by cement is stock that cement-based grouting material, which is, appropriate fine aggregate and adds a small amount of concrete admixture of people
And the dry-mixed material of other materials composition, add water mix to form.For a long time, grouting material is a kind of application amount in architectural engineering
Greatly, using wide construction material.Particularly self-leveling material, successively develop gypsum system, cement system and polymer cement certainly
Levelling mortar, it is widely used in mechanical equipment installation and reinforcing and repairing engineering.At present when using strength cement-based grouting material, due to
Expansion character is poor during ordinary cement volume contraction, easily produces micro-crack；In addition, getting up early low intensity, strength development is slow, durability
Difference, influence structural stability and service life.Therefore, exploitation novel high-performance strength cement-based grouting material turns into the task of top priority, from
Levelling mortar should meet to harden within a few hours, 1 day intensity can allow to walk above, finally harden as layer material
Mortar should have the requirement on uniform, hard, smooth and smooth surface.
At present, in the market cement-based grouting material product is a lot, and the spread in performance of various grouting materials is uneven, preferable work
It is basis and the premise of high performance grouting material as property, influenceing the factor of grouting material workability has a lot, and wherein mobile performance is
Evaluate one of standard of grouting material performance.Conventional cement base grouting material improves its mobility by adding glue, and water-cement ratio is got over
Greatly, fluidity is bigger, but intensity is also lower simultaneously.The addition of appropriate high efficiency water reducing agent is that improvement grouting material workability is indispensable
One of few important measures, but influence the factor that water reducer plays effect and have a lot, such as water reducer property in itself and diminishing
Adaptability problem of agent and cement etc..It can reach the higher effect of initial flow degree in real project, but pass through
Its fluidity is remarkably decreased after 30min.
Therefore, it is poor to solve cement base grouting material fluidity, it is impossible to meet Self-leveling, self-compaction requirement, early strength is low, after
Phase construction is delayed by and material does not have expansion character, the problem of causing shrinkage cracking, could promote strength cement-based grouting material more
Extensive field uses.
The content of the invention
The present invention solves the technical problem of：For conventional cement base grouting material poor fluidity, dilatancy difference is early
A kind of the problem of phase low intensity, there is provided strength cement-based grouting material.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of strength cement-based grouting material, it is made up of the raw material of following parts by weight：30~40 parts of cement, 50~60 parts of quartz sands,
30~40 parts of water, 5~6 parts of water reducers, 10~20 parts of flyash, 10~20 parts of miberal powders, 10~20 parts of slags, 8~10 parts of defoamings
Agent, 8~10 parts of water-loss reducers, 10~20 parts of modified pitch fibers, 10~20 parts of modified aluminium powders；
The modified pitch fibre modification process is：Count in parts by weight, take 10~20 parts of asphalt powders, 50~60 parts of height successively
Potassium manganate solution, 20~30 parts of silane couplers, 20~30 parts of ethanol solutions, 10~20 parts of tetraethyl orthosilicates, 10~20 parts are received
Rice magnesia, after first asphalt powder is melted, high-voltage electrostatic spinning, obtains pitch precursor, then pitch precursor and potassium permanganate is molten
Liquid immersion oxidation, obtains oxidized asphalt fiber, then mixes nano magnesia, silane coupler and ethanol solution, ultrasonic disperse,
Dispersion liquid is obtained, then adds oxidized asphalt fiber into dispersion liquid and is stirred, tetraethyl orthosilicate is then added dropwise, after being stirred,
Filtering, wash, dry, charing, produce modified pitch fiber；
The modified aluminium powder modifying process is：Count in parts by weight, take 10~20 parts of aluminium powders successively, 10~20 parts of glycerine, 10~
Aluminium powder and glycerine, are first stirred by 20 parts of Glutens, 100~120 parts of water, add Gluten and are stirred, and add water molten
It is swollen, stand, ultrasonic disperse, produce modified aluminium powder dispersion liquid.
The cement is Portland cement, any one in aluminate cement or sulfate cement.
The water reducer is polycarboxylate high performance water-reducing agent, in naphthalene series high-efficiency water-reducing agent or aminosulfonic water-reducing agent
Any one.
The slag is blast-furnace cinder, any one in granulated blast-furnace slag or mineral wool.
The defoamer is silicone emulsion, appointing in polyoxyethylene polyoxypropylene pentaerythrite ether or dimethyl silicone polymer
Meaning is a kind of.
The water-loss reducer is methylcellulose, any one in hydroxypropyl methyl cellulose or hydroxyethyl cellulose.
A diameter of 20~40 μm of the pitch precursor.
0.02~0.03 times of sodium thiosulfate of aluminium powder quality can also be added in the modified aluminium powder dispersion liquid.
The beneficial effects of the invention are as follows：
（1）The present invention is by adding modified pitch fiber, in modifying process, first with liquor potassic permanganate oxidized asphalt fiber,
The active group on pitch fibers surface is added, absorption affinity of the pitch fibers to nano magnesia is enhanced, in pitch fibers table
One layer of nano magnesia is adsorbed in face, while can also effectively improve pitch fibers to silica caused by teos hydrolysis
Absorption property, layer of silicon dioxide is re-formed on pitch fibers surface, on the one hand, silica promotes the water of strength cement-based grouting material
Change, form hard silicate after aquation, improve strength cement-based grouting material early strength, on the other hand, magnesia hydration process
In can adjust strength cement-based grouting material regulation the coefficient of expansion, solve the problems, such as strength cement-based grouting material solidification after it is easy to crack；
（2）Aluminium powder and glycerine are scattered in Gluten gel rubber system by the present invention by adding modified aluminium powder in modifying process,
On the one hand, glycerine plays certain lubrication in system, enhances system mobile performance, and Gluten gel has water conservation work
With being the abundant aquation of strength cement-based grouting material, there is provided advantage, on the other hand, with the hardening of cement, modified aluminium powder is taken by water
Band spreads in system, and aluminium powder can react generation gas under alkaline system with water, inside concrete porosity is obtained effectively
Improve, furthermore, product is corresponding meta-aluminate after aluminium powder reaction, can further participate in the hydration reaction process of cement, be advantageous to
Strength cement-based grouting material early strength is further lifted；By adding sodium thiosulfate, the thio sulphur of reproducibility in modified aluminium powder
Sour sodium can effectively prevent aluminium powder to be oxidized in dispersion process is mixed.
Embodiment
Count in parts by weight, take 10~20 parts of asphalt powders successively, 50~60 parts of mass fractions are 10~20% potassium permanganate
Solution, 20~30 parts of silane couplers, 20~30 parts of mass fractions are 40~50% ethanol solutions, 10~20 parts of tetraethyl orthosilicates,
10~20 parts of nano magnesias, first asphalt powder is loaded in melt-spun pipe, melted under the conditions of being 450~480 DEG C in temperature conditionss
Afterwards, obtain melt, then by melt in spinning voltage be 20~30kV, receive under the conditions of distance is 8~10cm, to carry out spinning, must drip
Blue or green precursor, then gained pitch precursor and mass fraction are added in beaker for 10~20% liquor potassic permanganates, and beaker is moved into
Digital display tests the speed constant temperature blender with magnetic force, in 30~40 DEG C of temperature, under the conditions of rotating speed is 400~500r/min, and heating stirring mixing
After 30~40min, filtering, filter cake is obtained, then filter cake is washed with deionized 3~5 times, then the filter cake after washing is placed in very
20~30min is dried in vacuum freecing-dry case, obtains dry cake, as oxidized asphalt fiber；Then by nano magnesia, silane
Coupling agent and mass fraction are that 40~50% ethanol solutions are added in three-necked flask, and three-necked flask then is moved into ultrasonic disperse instrument,
It is 40~50 DEG C in temperature, under the conditions of supersonic frequency is 60~75kHz, thermostatic ultrasonic disperses 35~50min, then to three-necked flask
Middle addition oxidized asphalt fiber, then three-necked flask immigration digital display is tested the speed constant temperature blender with magnetic force, in 30~40 DEG C of temperature, rotating speed
Under the conditions of 400~500r/min, heating stirring mixes 30~40min, then by dropping funel with 3~5mL/min speed
Tetraethyl orthosilicate is added dropwise dropwise into three-necked flask, treats that tetraethyl orthosilicate is added dropwise, in 40~50 DEG C of temperature, rotating speed 500~
Continue to be stirred 20~30min under the conditions of 600r/min, obtain mixed liquor, then filter gained mixed liquor, obtain filter residue, then will
Gained filter residue is washed with deionized 3~5 times, and filter residue is placed in vacuum freezing drying oven and dries 30~40min, obtains drying
Filter residue, then gained drying filter residue will be transferred to retort, nitrogen is passed through into stove with 100~200mL/min speed, protected in nitrogen
Under shield state, 900~1000 DEG C are warming up to 5~6 DEG C/min rate programs, after insulation carbonizes 2~3h, cools to room with the furnace
Temperature, discharging, produces modified pitch fiber；Count in parts by weight, take 10~20 parts of aluminium powders successively, 10~20 parts of glycerine, 10~20
Part Gluten, 100~120 parts of water, first aluminium powder, 0.02~0.03 times of sodium thiosulfate of glycerine and aluminium powder quality are added single port and burnt
Bottle, it is that 500~600r/min is stirred 20~30min in rotating speed, then Gluten and water is added to single-necked flask, is in rotating speed
After 600~800r/min is stirred 30~40min, 3~4h of swelling is stood, then single-necked flask is placed in ultrasonic disperse instrument, is surpassed
Sound disperses 20~30min, produces modified aluminium powder dispersion liquid；Count in parts by weight again, take successively 30~40 parts of cement, 50~60 parts
Quartz sand, 30~40 parts of water, 5~6 parts of water reducers, 10~20 parts of flyash, 10~20 parts of miberal powders, 10~20 parts of slags, 8~10
Part defoamer, 8~10 parts of water-loss reducers, 10~20 parts of modified pitch fibers, 10~20 parts of modified aluminium powders, by cement, quartz sand,
Water, water reducer, flyash, miberal powder, slag, defoamer, water-loss reducer, modified pitch fiber and modified aluminium powder are added in batch mixer,
40~50min of high-speed stirred under the conditions of rotating speed is 1200~1400r/min, produces strength cement-based grouting material.The cement is general
Logical portland cement, any one in aluminate cement or sulfate cement.The water reducer subtracts for polycarboxylic acid series high-performance
Any one in aqua, naphthalene series high-efficiency water-reducing agent or aminosulfonic water-reducing agent.The slag is blast-furnace cinder, granulated blast-furnace
Any one in slag or mineral wool.The defoamer is silicone emulsion, polyoxyethylene polyoxypropylene pentaerythrite ether or poly-
Any one in dimethyl siloxane.The water-loss reducer is methylcellulose, hydroxypropyl methyl cellulose or hydroxy ethyl fiber
Any one in element.A diameter of 20~40 μm of the pitch precursor.
Example 1
Count in parts by weight, take 20 parts of asphalt powders successively, 60 parts of mass fractions are 20% liquor potassic permanganate, 30 parts of silane idols
Join agent, 30 parts of mass fractions are 50% ethanol solution, 20 parts of tetraethyl orthosilicates, 20 parts of nano magnesias, are first loaded asphalt powder
In melt-spun pipe, after being melted under the conditions of being 480 DEG C in temperature conditionss, obtain melt, then by melt in spinning voltage be 30kV, receive away from
Under the conditions of for 10cm, spinning is carried out, obtains pitch precursor, then gained pitch precursor is molten for 20% potassium permanganate with mass fraction
Liquid is added in beaker, and beaker immigration digital display is tested the speed constant temperature blender with magnetic force, and in 40 DEG C of temperature, rotating speed is 500r/min conditions
Under, after heating stirring mixing 40min, filtering, filter cake is obtained, then filter cake is washed with deionized 5 times, then by the filter after washing
Cake, which is placed in vacuum freezing drying oven, dries 30min, obtains dry cake, as oxidized asphalt fiber；Then by nano magnesia,
Silane coupler and mass fraction are that 50% ethanol solution is added in three-necked flask, and three-necked flask then is moved into ultrasonic disperse instrument,
It it is 50 DEG C in temperature, under the conditions of supersonic frequency is 75kHz, thermostatic ultrasonic disperses 50min, then oxidation drip is added into three-necked flask
Blue or green fiber, then three-necked flask immigration digital display is tested the speed constant temperature blender with magnetic force, in 40 DEG C of temperature, rotating speed is 500r/min conditions
Under, heating stirring mixing 40min, tetraethyl orthosilicate is then added dropwise to three mouthfuls of burnings by dropping funel dropwise with 5mL/min speed
In bottle, treat that tetraethyl orthosilicate is added dropwise, continue to be stirred 30min under the conditions of temperature 50 C, rotating speed 600r/min, obtain mixed
Liquid is closed, then gained mixed liquor is filtered, obtains filter residue, then gained filter residue is washed with deionized 5 times, and filter residue is placed in very
40min is dried in vacuum freecing-dry case, obtains dry filter residue, then gained drying filter residue will be transferred to retort, with 200mL/min speed
Rate is passed through nitrogen into stove, and under nitrogen guard mode, 1000 DEG C, after insulation carbonizes 3h are warming up to 6 DEG C/min rate programs,
Cool to room temperature with the furnace, discharge, produce modified pitch fiber；Count in parts by weight, take 20 parts of aluminium powders successively, 20 parts of glycerine, 20
Part Gluten, 120 parts of water, first aluminium powder, 0.03 times of sodium thiosulfate of glycerine and aluminium powder quality are added single-necked flask, is in rotating speed
600r/min is stirred 30min, then adds Gluten and water to single-necked flask, is stirred in rotating speed for 800r/min
After 40min, swelling 4h is stood, then single-necked flask is placed in ultrasonic disperse instrument, ultrasonic disperse 30min, modified aluminium powder is produced and disperses
Liquid；Count in parts by weight again, take successively 40 parts of cement, 60 parts of quartz sands, 40 parts of water, 6 parts of water reducers, 20 parts of flyash, 20 parts
Miberal powder, 20 parts of slags, 10 parts of defoamers, 10 parts of water-loss reducers, 20 parts of modified pitch fibers, 20 parts of modified aluminium powders, by cement, quartz
Sand, water, water reducer, flyash, miberal powder, slag, defoamer, water-loss reducer, modified pitch fiber and modified aluminium powder add batch mixer
In, the high-speed stirred 50min under the conditions of rotating speed is 1400r/min, produce strength cement-based grouting material.The cement is normal silicate
Cement.The water reducer is polycarboxylate high performance water-reducing agent.The slag is blast-furnace cinder.The defoamer is emulsification silicon
Oil.The water-loss reducer is methylcellulose.A diameter of 40 μm of the pitch precursor.
Example 2
Count in parts by weight, take 20 parts of aluminium powders, 20 parts of glycerine, 20 parts of Glutens, 120 parts of water, first by aluminium powder, glycerine and aluminium successively
0.03 times of sodium thiosulfate of silty amount adds single-necked flask, is that 600r/min is stirred 30min in rotating speed, then to single-necked flask
Gluten and water are added, is after 800r/min is stirred 40min in rotating speed, stands swelling 4h, then single-necked flask is placed in super
Sound separating apparatus, ultrasonic disperse 30min, produce modified aluminium powder dispersion liquid；Count in parts by weight again, take successively 40 parts of cement, 60 parts
Quartz sand, 40 parts of water, 6 parts of water reducers, 20 parts of flyash, 20 parts of miberal powders, 20 parts of slags, 10 parts of defoamers, 10 parts of water-loss reducers, 20
Part modified aluminium powder, cement, quartz sand, water, water reducer, flyash, miberal powder, slag, defoamer, water-loss reducer and modified aluminium powder are added
Enter in batch mixer, the high-speed stirred 50min under the conditions of rotating speed is 1400r/min, produce strength cement-based grouting material.The cement is general
Logical portland cement.The water reducer is polycarboxylate high performance water-reducing agent.The slag is blast-furnace cinder.The defoamer is
Silicone emulsion.The water-loss reducer is methylcellulose.A diameter of 40 μm of the pitch precursor.
Example 3
Count in parts by weight, take 20 parts of asphalt powders successively, 60 parts of mass fractions are 20% liquor potassic permanganate, 30 parts of silane idols
Join agent, 30 parts of mass fractions are 50% ethanol solution, 20 parts of tetraethyl orthosilicates, 20 parts of nano magnesias, are first loaded asphalt powder
In melt-spun pipe, after being melted under the conditions of being 480 DEG C in temperature conditionss, obtain melt, then by melt in spinning voltage be 30kV, receive away from
Under the conditions of for 10cm, spinning is carried out, obtains pitch precursor, then gained pitch precursor is molten for 20% potassium permanganate with mass fraction
Liquid is added in beaker, and beaker immigration digital display is tested the speed constant temperature blender with magnetic force, and in 40 DEG C of temperature, rotating speed is 500r/min conditions
Under, after heating stirring mixing 40min, filtering, filter cake is obtained, then filter cake is washed with deionized 5 times, then by the filter after washing
Cake, which is placed in vacuum freezing drying oven, dries 30min, obtains dry cake, as oxidized asphalt fiber；Then by nano magnesia,
Silane coupler and mass fraction are that 50% ethanol solution is added in three-necked flask, and three-necked flask then is moved into ultrasonic disperse instrument,
It it is 50 DEG C in temperature, under the conditions of supersonic frequency is 75kHz, thermostatic ultrasonic disperses 50min, then oxidation drip is added into three-necked flask
Blue or green fiber, then three-necked flask immigration digital display is tested the speed constant temperature blender with magnetic force, in 40 DEG C of temperature, rotating speed is 500r/min conditions
Under, heating stirring mixing 40min, tetraethyl orthosilicate is then added dropwise to three mouthfuls of burnings by dropping funel dropwise with 5mL/min speed
In bottle, treat that tetraethyl orthosilicate is added dropwise, continue to be stirred 30min under the conditions of temperature 50 C, rotating speed 600r/min, obtain mixed
Liquid is closed, then gained mixed liquor is filtered, obtains filter residue, then gained filter residue is washed with deionized 5 times, and filter residue is placed in very
40min is dried in vacuum freecing-dry case, obtains dry filter residue, then gained drying filter residue will be transferred to retort, with 200mL/min speed
Rate is passed through nitrogen into stove, and under nitrogen guard mode, 1000 DEG C, after insulation carbonizes 3h are warming up to 6 DEG C/min rate programs,
Cool to room temperature with the furnace, discharge, produce modified pitch fiber；Count in parts by weight again, take 40 parts of cement, 60 parts of quartz successively
Sand, 40 parts of water, 6 parts of water reducers, 20 parts of flyash, 20 parts of miberal powders, 20 parts of slags, 10 parts of defoamers, 10 parts of water-loss reducers, 20 parts change
Property pitch fibers, by cement, quartz sand, water, water reducer, flyash, miberal powder, slag, defoamer, water-loss reducer and modified pitch are fine
Dimension is added in batch mixer, the high-speed stirred 50min under the conditions of rotating speed is 1400r/min, produces strength cement-based grouting material.The cement
For Portland cement.The water reducer is polycarboxylate high performance water-reducing agent.The slag is blast-furnace cinder.The defoaming
Agent is silicone emulsion.The water-loss reducer is methylcellulose.A diameter of 40 μm of the pitch precursor.
Comparative example：The strength cement-based grouting material of the extraordinary building materials Co., Ltd production in Nanjing.
The strength cement-based grouting material and comparative example product of example 1 to the gained of example 3 are subjected to performance detection, specific detection method
It is as follows：
1. mobility：Using truncated cone circle modulus method test fluidity, filled referring in particular to the new cement base of mixing of GB/T50448-2015 tests
Maximum spread diameter of the pulp material under deadweight；Delivery time is tested using flow cone method, tested referring in particular to ASTMC939
Delivery time of the cement-based grouting material in regulation cone is mixed in the new of certain volume；
2. expansion character：Technical requirements as defined in JC/T986-2005 standards should meet that the ld of cement-based grouting material is vertically swollen
Swollen rate >=0.02%.Vertical expansion ratio is carried out by GB50119-2003 appendix Cs.24h after the cement-based grouting material die trial of falling people is covered
Glass plate installation amesdial reads initial value；
3. mechanical property：Tested according to GB/T50448-2015.Technical requirements as defined in JC/T986-2005 standards should
Meet the compression strength of cement-based grouting material：1d≥22MPa；3d≥40MPa；28d≥70MPa.
Specific testing result is as shown in table 1：
Table 1
From the testing result of table 1, the present invention program prepare strength cement-based grouting material have preferable mobility and dilatancy and
The characteristics of early strength is higher, strength cement-based grouting material can be promoted to be used in wider field.
Claims (8)
- A kind of 1. strength cement-based grouting material, it is characterised in that：It is made up of the raw material of following parts by weight：30~40 parts of cement, 50 ~60 parts of quartz sands, 30~40 parts of water, 5~6 parts of water reducers, 10~20 parts of flyash, 10~20 parts of miberal powders, 10~20 parts of ore deposits Slag, 8~10 parts of defoamers, 8~10 parts of water-loss reducers, 10~20 parts of modified pitch fibers, 10~20 parts of modified aluminium powders；The modified pitch fibre modification process is：Count in parts by weight, take 10~20 parts of asphalt powders, 50~60 parts of height successively Potassium manganate solution, 20~30 parts of silane couplers, 20~30 parts of ethanol solutions, 10~20 parts of tetraethyl orthosilicates, 10~20 parts are received Rice magnesia, after first asphalt powder is melted, high-voltage electrostatic spinning, obtains pitch precursor, then pitch precursor and potassium permanganate is molten Liquid immersion oxidation, obtains oxidized asphalt fiber, then mixes nano magnesia, silane coupler and ethanol solution, ultrasonic disperse, Dispersion liquid is obtained, then adds oxidized asphalt fiber into dispersion liquid and is stirred, tetraethyl orthosilicate is then added dropwise, after being stirred, Filtering, wash, dry, charing, produce modified pitch fiber；The modified aluminium powder modifying process is：Count in parts by weight, take 10~20 parts of aluminium powders successively, 10~20 parts of glycerine, 10~ Aluminium powder and glycerine, are first stirred by 20 parts of Glutens, 100~120 parts of water, add Gluten and are stirred, and add water molten It is swollen, stand, ultrasonic disperse, produce modified aluminium powder dispersion liquid.
- A kind of 2. strength cement-based grouting material according to claim 1, it is characterised in that：The cement is Portland cement, Any one in aluminate cement or sulfate cement.
- A kind of 3. strength cement-based grouting material according to claim 1, it is characterised in that：The water reducer is polycarboxylic acid series high-performance Any one in water reducer, naphthalene series high-efficiency water-reducing agent or aminosulfonic water-reducing agent.
- A kind of 4. strength cement-based grouting material according to claim 1, it is characterised in that：The slag is blast-furnace cinder, and granulation is high Any one in stove slag or mineral wool.
- A kind of 5. strength cement-based grouting material according to claim 1, it is characterised in that：The defoamer is silicone emulsion, polyoxy Any one in ethene polyoxypropylene pentaerythrite ether or dimethyl silicone polymer.
- A kind of 6. strength cement-based grouting material according to claim 1, it is characterised in that：The water-loss reducer is methylcellulose, hydroxyl Any one in propyl methocel or hydroxyethyl cellulose.
- A kind of 7. strength cement-based grouting material according to claim 1, it is characterised in that：A diameter of 20~40 μ of pitch precursor m。
- A kind of 8. strength cement-based grouting material according to claim 1, it is characterised in that：Can be with the modified aluminium powder dispersion liquid Add aluminium powder 0.02~0.03 times of sodium thiosulfate of quality.
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| CN108793877A (en) * | 2018-07-06 | 2018-11-13 | 佛山陵朝新材料有限公司 | A kind of concrete mortar |
| CN109180118A (en) * | 2018-11-20 | 2019-01-11 | 长江水利委员会长江科学院 | A kind of subzero temperature reinforced bar sleeve grouting material and preparation method thereof |
| CN109762516A (en) * | 2019-01-21 | 2019-05-17 | 株洲加美乐素建材有限公司 | A kind of waterproof roll cement base adhesive pulvis and preparation method thereof |
| CN113550575A (en) * | 2021-09-06 | 2021-10-26 | 中建八局第四建设有限公司 | Novel pipeline mold hanging process for prefabricated building |
| CN116874265A (en) * | 2023-09-06 | 2023-10-13 | 石家庄铁道大学 | High-ductility multi-scale fiber reinforced cement-based composite material and preparation method thereof |
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| CN108793877A (en) * | 2018-07-06 | 2018-11-13 | 佛山陵朝新材料有限公司 | A kind of concrete mortar |
| CN109180118A (en) * | 2018-11-20 | 2019-01-11 | 长江水利委员会长江科学院 | A kind of subzero temperature reinforced bar sleeve grouting material and preparation method thereof |
| CN109762516A (en) * | 2019-01-21 | 2019-05-17 | 株洲加美乐素建材有限公司 | A kind of waterproof roll cement base adhesive pulvis and preparation method thereof |
| CN113550575A (en) * | 2021-09-06 | 2021-10-26 | 中建八局第四建设有限公司 | Novel pipeline mold hanging process for prefabricated building |
| CN116874265A (en) * | 2023-09-06 | 2023-10-13 | 石家庄铁道大学 | High-ductility multi-scale fiber reinforced cement-based composite material and preparation method thereof |
| CN116874265B (en) * | 2023-09-06 | 2023-11-07 | 石家庄铁道大学 | High-ductility multi-scale fiber reinforced cement-based composite material and preparation method thereof |
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