CN106673477A - Preparation method of green concrete duct grouting material - Google Patents
Preparation method of green concrete duct grouting material Download PDFInfo
- Publication number
- CN106673477A CN106673477A CN201611211669.0A CN201611211669A CN106673477A CN 106673477 A CN106673477 A CN 106673477A CN 201611211669 A CN201611211669 A CN 201611211669A CN 106673477 A CN106673477 A CN 106673477A
- Authority
- CN
- China
- Prior art keywords
- temperature
- conditions
- under
- dried
- proceeded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a preparation method of a green concrete duct grouting material, and belongs to the technical field of the preparation of grouting materials. According to the preparation method, a hickory nut shell is first carbonized after being smashed, so as to improve the porosity of the hickory nut shell, and afterwards, is mixed with calcined spent bleaching clay; an obtained first mixture is modified by using a titanate coupling agent, so as to make modified mixed powder; afterwards, pulverized fuel ash is subjected to activation modification through a sodium hydroxide solution, so as to further improve the porosity and the specific surface area of the pulverized fuel ash, and is mixed with the modified mixed powder, hydroxyapatite and the like; an obtained second mixture is cured; ball milling is cooperated during a curing period; the reaction velocity and the flowing property of slurry in a hardening process of cement are improved; the continuous increment of the late swelling rate of a product is effectively maintained; through adding medical stone and the hydroxyapatite, the late strength of the hardened and dehydrated cement is improved; the invalidation is prevented; finally, an obtained third mixture is dried; the green concrete duct grouting material prepared by the preparation method has a 24h free swelling rate of 0.1 to 0.9 percent, and has a better swelling rate; the flowing property and the strength of the slurry are effectively improved.
Description
Technical field
The present invention relates to a kind of preparation method of green concrete hole path pressure grouting material, belongs to press mortar technology of preparing neck
Domain.
Background technology
In recent years China's infrastructure construction is advanced by leaps and bounds, the bridge tunnel ratio increase of highway and railway, post-tensioned prestressing bridge
Use it is more extensive.And back-tension prestressed channel mudjacking is used as one key technology of post-tensioned prestressing bridge, good duct
Mud jacking is extremely important for the safety and durability that ensure bridge.Pumping of prostressed duct is by press mortar
In the reserved prestressed concrete pipe road of injection, press mortar is set fully to wrap up presstressed reinforcing steel.Its effect is protection prestress steel
Muscle not corrosion simultaneously makes it with concrete good combination, it is ensured that prestressed effective transmission, makes deformed bar common with concrete
Work, improves the reliability and durability of structure.
The mode of press mortar is prepared in engineering two kinds：One kind is that grouting agent is stirred with cement with certain proportion mixing and water adding
Mixing is standby, another kind be grouting material directly add water stirring prepare.Grouting material is by high efficiency water reducing agent, retarder and micro-expanding agent etc.
The dry blend of various additives and mineral admixture and cement composition, the grouting material for being not spiked with cement is grouting agent.Mud jacking
Although material stable performance, it is relatively costly, and grouting agent not only volume is more flexible, and can use building site near cement,
Construction costs can be to a great extent reduced, but its expansion rate is low, improves fluidity of slurry ability, and slurry intensity is increased
Plus without positive effect, and unstable properties, as the prolongation effect of Storage period changes very greatly.
The content of the invention
The technical problem to be solved：It is low for conventional concrete press mortar expansion rate, in use
Fluidity of slurry energy cannot be effectively improved, the problem without positive effect is increased to slurry intensity, there is provided one kind is with Semen Caryae Cathayensis shell
The method that the preprocessed modified steam curing such as powder, spent bleaching clay and flyash is obtained green concrete hole path pressure grouting material.This
Invention Semen Caryae Cathayensis shell is crushed first after carbonization, improve its porosity, then mix and use titanate esters idol with the spent bleaching clay after calcining
Connection agent is modified, and modified mixed-powder is obtained, then by flyash Jing sodium hydroxide solution activation modifications, further improves flyash
Porosity and specific surface area, mix, Jing steam curings with modified mixed-powder, hydroxyapatite etc., and coordinate during conserving
Ball milling, improves reaction rate and fluidity of slurry energy of the product during hardening of cement, effectively keeps product late expansion rate
Continue to increase, and the strength of cement after after-hardening dehydration is improved by adding Maifanitum and hydroxyapatite, prevent failure, most
By prepared green concrete hole path pressure grouting material is dried, it is low to efficiently solve traditional grouting agent expansion rate, to slurry intensity without
It is remarkably reinforced the problem of effect.
To solve above-mentioned technical problem, the technical solution used in the present invention is：
（1）Weigh 200~300g Semen Caryae Cathayensis shell, after size-reduced machine is crushed, cross 200 mesh sieves, obtain walnut shell powder, and by gained Semen Juglandiss
Shell powder is proceeded in baking oven, is dried to constant weight under the conditions of temperature is for 105~110 DEG C, then dried walnut shell powder is proceeded to into charcoal
Change stove, nitrogen protection is passed through into stove with 3~5mL/min speed, under nitrogen guard mode, with 8~10 DEG C/min speed journeys
Sequence is warming up to 550~650 DEG C, is incubated 30~45min of carbonization, obtains carbonization walnut shell powder；
（2）300~500g spent bleaching clays are weighed, in being placed in Muffle furnace, under the conditions of temperature is for 400~500 DEG C, 2~3h is calcined, is treated
Room temperature is naturally cooled to, the spent bleaching clay after 100~120g calcinings is weighed successively, 60~80g carbonization walnut shell powders are poured into and filled
In the beaker of 400~500mL dehydrated alcohol, 10~20mL titanate coupling agent NDZ-201 are added, then beaker is placed in into water-bath
It is under the conditions of 55~60 DEG C, with Glass rod stirring 15~20min of mixing, to filter in temperature in pot, collects filter cake, and by gained
Filter cake is proceeded in baking oven, is dried to constant weight under the conditions of temperature is for 105~110 DEG C, then is poured in mortar, and 200 mesh are crossed after grinding
Sieve, obtains modified mixed-powder, standby；
（3）300~400g flyash is weighed, the burning for filling that 600~800mL concentration is 1~2mol/L sodium hydroxide solutions is poured into
In cup, then beaker is placed in into digital display tests the speed in constant temperature blender with magnetic force, be 75~80 DEG C in temperature, rotating speed is 600~800r/
24~48h of constant temperature stirring reaction under the conditions of min, filters, and collects filter cake, and in being washed with deionized filter cake until cleaning mixture is in
Property, then the filter cake after washing is proceeded in baking oven, it is dried to constant weight under the conditions of temperature is for 105~110 DEG C, then will be dried
Filter cake is placed in mortar, and 325 mesh sieves are crossed after grinding, obtains modified coal ash；
（4）Count by weight, 80~120 parts of steps are sequentially added in batch mixer（2）Standby modified mixed-powder, 150~
200 parts of above-mentioned gained modified coal ash, 30~50 parts of Maifanitums, 10~15 parts of hydroxyapatite, 3~5 parts of calcium hydroxide, with
800~1000r/min rotating speeds stirring 45~60min of mixing, discharging obtains compound；
（5）Above-mentioned gained compound is proceeded to into steam curing box, under the conditions of temperature is for 98~100 DEG C, steam curing 6~8 days,
And during conserving, compound is removed every 6~8h, Jing after ball mill 15~30min of ball milling, move in curing box and continue
Maintenance is processed, and treats that maintenance terminates, and compound in curing box is proceeded in baking oven, is dried extremely under the conditions of temperature is for 105~110 DEG C
Constant weight, obtains final product green concrete hole path pressure grouting material.
The application process of the present invention：Green concrete hole path pressure grouting materials application prepared by the present invention is in bridge prestress
In pipeline, in mass ratio 1:10~1:15, green concrete hole path pressure grouting material prepared by the present invention is entered with portland cement
After row is uniformly mixed, mud jacking mixture, then in mass ratio 3 are obtained:11, water and mud jacking mixture are placed in mixing machine and are stirred
4~5min of mixing, obtains mixed slurry, recycles the air in vacuum pumping prestress pipe, makes relative degree of vacuum in pipeline
- 0.07~-0.09MPa is reached, it is then with 0.5~0.6MPa pressure that mixed slurry press-in is pre- in one end mudjack of pipeline
In stress pipeline, when the full pulp of the pipeline other end, stop press-in, and mud jacking action 5 is kept under 0.5~0.7MPa pressure
~10min, makes mud jacking hole completely dense.After testing, the obtained green concrete hole path pressure grouting material flowability of the present invention
Good, slurry initial flow degree is 14~16s, and up to 40~42MPa, rupture strength is 10~13MPa to 7 days comprcssive strength, is resisted within 28 days
Compressive Strength is 0,24h up to 60.2~81.5MPa, rupture strength up to 15~17MPa, 3h hairs bleeding rate and the free bleeding rates of 24h
Free swelling rate is 0.1~0.9%.
Compared with additive method, Advantageous Effects are the present invention：
（1）Green concrete hole path pressure grouting material 24h free swelling rates prepared by the present invention are 0.1~0.9%, with preferable
Expansion rate；
（2）Green concrete hole path pressure grouting material prepared by the present invention effectively increases the mobile performance and intensity of slurry, its slurry
Body initial flow degree is 14~16s, and up to 40~42MPa, rupture strength is 10~13MPa to 7 days comprcssive strength, 28 days comprcssive strength
Up to 60.2~81.5MPa, rupture strength is up to 15~17MPa；
（3）Mainly with materials such as spent bleaching clay, flyash as raw material, resource is recycled the present invention again, meets environmental protection
Require.
Specific embodiment
Weigh 200~300g Semen Caryae Cathayensis shell first, after size-reduced machine is crushed, cross 200 mesh sieves, obtain walnut shell powder, and by institute
Walnut shell powder is proceeded in baking oven, be to be dried to constant weight under the conditions of 105~110 DEG C in temperature, then by dried walnut shell powder
Retort is proceeded to, nitrogen protection is passed through into stove with 3~5mL/min speed, under nitrogen guard mode, with 8~10 DEG C/min
Rate program is warming up to 550~650 DEG C, is incubated 30~45min of carbonization, obtains carbonization walnut shell powder；It is useless white that 300~500g is weighed again
Soil, in being placed in Muffle furnace, under the conditions of temperature is for 400~500 DEG C, calcines 2~3h, after naturally cool to room temperature, weighs successively
Spent bleaching clay after 100~120g calcinings, 60~80g carbonization walnut shell powders pour the beaker for filling 400~500mL dehydrated alcohol into
In, add 10~20mL titanate coupling agent NDZ-201, then beaker is placed in water-bath, in temperature be 55~60 DEG C of bars
Under part, with Glass rod stirring 15~20min of mixing, filter, collect filter cake, and gained filter cake is proceeded in baking oven, be in temperature
It is dried to constant weight under the conditions of 105~110 DEG C, then pours in mortar, 200 mesh sieves are crossed after grinding, obtains modified mixed-powder, it is standby；
Then 300~400g flyash is weighed, the beaker for filling that 600~800mL concentration is 1~2mol/L sodium hydroxide solutions is poured into
In, then beaker is placed in into digital display tests the speed in constant temperature blender with magnetic force, it is 75~80 DEG C in temperature, rotating speed is 600~800r/min
Under the conditions of constant temperature 24~48h of stirring reaction, filter, collect filter cake, and be washed with deionized filter cake until cleaning mixture in neutrality,
The filter cake after washing is proceeded in baking oven again, is to be dried to constant weight under the conditions of 105~110 DEG C in temperature, then by dried filter
Cake is placed in mortar, and 325 mesh sieves are crossed after grinding, obtains modified coal ash；Count by weight again, 80 are sequentially added in batch mixer
~120 parts of standby modified mixed-powders, 150~200 parts of above-mentioned gained modified coal ash, 30~50 parts of Maifanitums, 10~15 parts
Hydroxyapatite, 3~5 parts of calcium hydroxide, with 800~1000r/min rotating speeds stirring 45~60min of mixing, discharging must mix
Material；Finally above-mentioned gained compound is proceeded to into steam curing box, under the conditions of temperature is for 98~100 DEG C, steam curing 6~8 days,
And during conserving, compound is removed every 6~8h, Jing after ball mill 15~30min of ball milling, move in curing box and continue
Maintenance is processed, and treats that maintenance terminates, and compound in curing box is proceeded in baking oven, is dried extremely under the conditions of temperature is for 105~110 DEG C
Constant weight, obtains final product green concrete hole path pressure grouting material.
Example 1
Weigh 300g Semen Caryae Cathayensis shell first, after size-reduced machine is crushed, cross 200 mesh sieves, obtain walnut shell powder, and by gained walnut shell powder
In proceeding to baking oven, it is dried to constant weight under the conditions of temperature is for 110 DEG C, then dried walnut shell powder is proceeded to into retort, with
5mL/min speed is passed through nitrogen protection into stove, under nitrogen guard mode, with 10 DEG C/min rate programs 650 DEG C is warming up to,
Insulation carbonization 45min, obtains carbonization walnut shell powder；Weigh 500g spent bleaching clays again, in being placed in Muffle furnace, in temperature be 500 DEG C of conditions
Under, 3h is calcined, after naturally cool to room temperature, the spent bleaching clay after 120g calcinings is weighed successively, 80g carbonization walnut shell powders pour Sheng into
In having the beaker of 500mL dehydrated alcohol, 20mL titanate coupling agent NDZ-201 are added, then beaker is placed in water-bath, in
Temperature collects filter cake under the conditions of 60 DEG C, with Glass rod stirring mixing 20min, to filter, and gained filter cake is proceeded in baking oven,
It is dried to constant weight under the conditions of temperature is for 110 DEG C, then pours in mortar, 200 mesh sieves are crossed after grinding, obtains modified mixed-powder, it is standby
With；Then 400g flyash is weighed, is poured into and is filled in the beaker that 800mL concentration is 2mol/L sodium hydroxide solutions, then by beaker
It is placed in digital display to test the speed in constant temperature blender with magnetic force, is 80 DEG C in temperature, rotating speed is constant temperature stirring reaction under the conditions of 800r/min
48h, filters, and collects filter cake, and is washed with deionized filter cake until cleaning mixture is in neutrality, then the filter cake after washing is proceeded to into baking
In case, it is dried to constant weight under the conditions of temperature is for 110 DEG C, then dried filter cake is placed in mortar, 325 mesh is crossed after grinding
Sieve, obtains modified coal ash；Count by weight again, sequentially add 120 parts of standby modified mixed-powders in batch mixer, 200 parts
Above-mentioned gained modified coal ash, 50 parts of Maifanitums, 15 parts of hydroxyapatite, 5 parts of calcium hydroxide, with the stirring of 1000r/min rotating speeds
Mixing 60min, discharging obtains compound；Finally above-mentioned gained compound is proceeded to into steam curing box, in temperature be 100 DEG C of conditions
Under, steam curing 8 days, and during conserving, remove compound every 8h, Jing after ball mill ball milling 30min, move into maintenance
Continue maintenance in case to process, treat that maintenance terminates, compound in curing box is proceeded in baking oven, do under the conditions of temperature is for 110 DEG C
It is dry to constant weight, obtain final product green concrete hole path pressure grouting material.
By the green concrete hole path pressure grouting materials application of present invention preparation in bridge prestress pipeline, in mass ratio 1:
15, green concrete hole path pressure grouting material prepared by the present invention is stirred with portland cement after mixing homogeneously, obtain mud jacking
Mixture, then in mass ratio 3:11, water and mud jacking mixture are placed in into stirring in mixing machine and mix 5min, mixed slurry is obtained, then
Using the air in vacuum pumping prestress pipe, relative degree of vacuum in pipeline is set to reach -0.09MPa, then in pipeline
One end mudjack is pressed into mixed slurry in prestress pipe with 0.6MPa pressure, when the full pulp of the pipeline other end, is stopped
Only it is pressed into, and mud jacking action 10min is kept under 0.7MPa pressure, makes mud jacking hole completely dense.After testing, present invention system
The green concrete hole path pressure grouting material flowability for obtaining is good, and slurry initial flow degree is 16s, and comprcssive strength reaches 42MPa within 7 days, resists
Folding intensity is 13MPa, and 28 days comprcssive strength reaches 81.5MPa, and rupture strength reaches 17MPa, 3h hairs bleeding rate and the free bleeding rates of 24h
0,24h free swelling rates are for 0.9%.
Example 2
Weigh 200g Semen Caryae Cathayensis shell first, after size-reduced machine is crushed, cross 200 mesh sieves, obtain walnut shell powder, and by gained walnut shell powder
In proceeding to baking oven, it is dried to constant weight under the conditions of temperature is for 105 DEG C, then dried walnut shell powder is proceeded to into retort, with
3mL/min speed is passed through nitrogen protection into stove, under nitrogen guard mode, with 8 DEG C/min rate programs 550 DEG C is warming up to,
Insulation carbonization 30min, obtains carbonization walnut shell powder；Weigh 300g spent bleaching clays again, in being placed in Muffle furnace, in temperature be 400 DEG C of conditions
Under, 2h is calcined, after naturally cool to room temperature, the spent bleaching clay after 100g calcinings is weighed successively, 60g carbonization walnut shell powders pour Sheng into
In having the beaker of 400mL dehydrated alcohol, 10mL titanate coupling agent NDZ-201 are added, then beaker is placed in water-bath, in
Temperature collects filter cake under the conditions of 55 DEG C, with Glass rod stirring mixing 15min, to filter, and gained filter cake is proceeded in baking oven,
It is dried to constant weight under the conditions of temperature is for 105 DEG C, then pours in mortar, 200 mesh sieves are crossed after grinding, obtains modified mixed-powder, it is standby
With；Then 300g flyash is weighed, is poured into and is filled in the beaker that 600mL concentration is 1mol/L sodium hydroxide solutions, then by beaker
It is placed in digital display to test the speed in constant temperature blender with magnetic force, is 75 DEG C in temperature, rotating speed is constant temperature stirring reaction under the conditions of 600r/min
24h, filters, and collects filter cake, and is washed with deionized filter cake until cleaning mixture is in neutrality, then the filter cake after washing is proceeded to into baking
In case, it is dried to constant weight under the conditions of temperature is for 105 DEG C, then dried filter cake is placed in mortar, 325 mesh is crossed after grinding
Sieve, obtains modified coal ash；Count by weight again, 80 parts of standby modified mixed-powders are sequentially added in batch mixer, on 150 parts
Gained modified coal ash is stated, 30 parts of Maifanitums, 10 parts of hydroxyapatite, 3 parts of calcium hydroxide are mixed with the stirring of 800r/min rotating speeds
45min, discharging, obtains compound；Finally above-mentioned gained compound is proceeded to into steam curing box, under the conditions of temperature is for 98 DEG C, steamed
Vapour is conserved 6 days, and during conserving, is removed compound every 6h, Jing after ball mill ball milling 15min, in moving into curing box
Continue maintenance to process, treat that maintenance terminates, compound in curing box is proceeded in baking oven, be dried extremely under the conditions of temperature is for 105 DEG C
Constant weight, obtains final product green concrete hole path pressure grouting material.
By the green concrete hole path pressure grouting materials application of present invention preparation in bridge prestress pipeline, in mass ratio 1:
10, green concrete hole path pressure grouting material prepared by the present invention is stirred with portland cement after mixing homogeneously, obtain mud jacking
Mixture, then in mass ratio 3:11, water and mud jacking mixture are placed in into stirring in mixing machine and mix 4min, mixed slurry is obtained, then
Using the air in vacuum pumping prestress pipe, relative degree of vacuum in pipeline is set to reach -0.07MPa, then in pipeline
One end mudjack is pressed into mixed slurry in prestress pipe with 0.5MPa pressure, when the full pulp of the pipeline other end, is stopped
Only it is pressed into, and mud jacking action 5min is kept under 0.5MPa pressure, makes mud jacking hole completely dense.After testing, present invention system
The green concrete hole path pressure grouting material flowability for obtaining is good, and slurry initial flow degree is 14s, and comprcssive strength reaches 40MPa within 7 days, resists
Folding intensity is 10MPa, and 28 days comprcssive strength reaches 60.2MPa, and rupture strength reaches 15MPa, 3h hairs bleeding rate and the free bleeding rates of 24h
0,24h free swelling rates are for 0.1%.
Example 3
Weigh 250g Semen Caryae Cathayensis shell first, after size-reduced machine is crushed, cross 200 mesh sieves, obtain walnut shell powder, and by gained walnut shell powder
In proceeding to baking oven, it is dried to constant weight under the conditions of temperature is for 107 DEG C, then dried walnut shell powder is proceeded to into retort, with
4mL/min speed is passed through nitrogen protection into stove, under nitrogen guard mode, with 9 DEG C/min rate programs 600 DEG C is warming up to,
Insulation carbonization 40min, obtains carbonization walnut shell powder；Weigh 400g spent bleaching clays again, in being placed in Muffle furnace, in temperature be 450 DEG C of conditions
Under, 3h is calcined, after naturally cool to room temperature, the spent bleaching clay after 110g calcinings is weighed successively, 70g carbonization walnut shell powders pour Sheng into
In having the beaker of 450mL dehydrated alcohol, 15mL titanate coupling agent NDZ-201 are added, then beaker is placed in water-bath, in
Temperature collects filter cake under the conditions of 57 DEG C, with Glass rod stirring mixing 17min, to filter, and gained filter cake is proceeded in baking oven,
It is dried to constant weight under the conditions of temperature is for 107 DEG C, then pours in mortar, 200 mesh sieves are crossed after grinding, obtains modified mixed-powder, it is standby
With；Then 350g flyash is weighed, is poured into and is filled in the beaker that 700mL concentration is 1mol/L sodium hydroxide solutions, then by beaker
It is placed in digital display to test the speed in constant temperature blender with magnetic force, is 77 DEG C in temperature, rotating speed is constant temperature stirring reaction under the conditions of 700r/min
40h, filters, and collects filter cake, and is washed with deionized filter cake until cleaning mixture is in neutrality, then the filter cake after washing is proceeded to into baking
In case, it is dried to constant weight under the conditions of temperature is for 107 DEG C, then dried filter cake is placed in mortar, 325 mesh is crossed after grinding
Sieve, obtains modified coal ash；Count by weight again, sequentially add 110 parts of standby modified mixed-powders in batch mixer, 170 parts
Above-mentioned gained modified coal ash, 40 parts of Maifanitums, 12 parts of hydroxyapatite, 4 parts of calcium hydroxide are mixed with the stirring of 900r/min rotating speeds
50min is closed, discharging obtains compound；Finally above-mentioned gained compound is proceeded to into steam curing box, under the conditions of temperature is for 99 DEG C,
Steam curing 7 days, and during conserving, remove compound every 7h, Jing after ball mill ball milling 20min, move into curing box
Middle continuation maintenance is processed, and treats that maintenance terminates, and compound in curing box is proceeded in baking oven, is dried under the conditions of temperature is for 107 DEG C
To constant weight, green concrete hole path pressure grouting material is obtained final product.
By the green concrete hole path pressure grouting materials application of present invention preparation in bridge prestress pipeline, in mass ratio 1:
12, green concrete hole path pressure grouting material prepared by the present invention is stirred with portland cement after mixing homogeneously, obtain mud jacking
Mixture, then in mass ratio 3:11, water and mud jacking mixture are placed in into stirring in mixing machine and mix 4min, mixed slurry is obtained, then
Using the air in vacuum pumping prestress pipe, relative degree of vacuum in pipeline is set to reach -0.08MPa, then in pipeline
One end mudjack is pressed into mixed slurry in prestress pipe with 0.5MPa pressure, when the full pulp of the pipeline other end, is stopped
Only it is pressed into, and mud jacking action 7min is kept under 0.6MPa pressure, makes mud jacking hole completely dense.After testing, present invention system
The green concrete hole path pressure grouting material flowability for obtaining is good, and slurry initial flow degree is 15s, and comprcssive strength reaches 41MPa within 7 days, resists
Folding intensity is 12MPa, and 28 days comprcssive strength reaches 70.1MPa, and rupture strength reaches 16MPa, 3h hairs bleeding rate and the free bleeding rates of 24h
0,24h free swelling rates are for 0.8%.
Claims (1)
1. a kind of preparation method of green concrete hole path pressure grouting material, it is characterised in that concrete preparation process is：
（1）Weigh 200~300g Semen Caryae Cathayensis shell, after size-reduced machine is crushed, cross 200 mesh sieves, obtain walnut shell powder, and by gained Semen Juglandiss
Shell powder is proceeded in baking oven, is dried to constant weight under the conditions of temperature is for 105~110 DEG C, then dried walnut shell powder is proceeded to into charcoal
Change stove, nitrogen protection is passed through into stove with 3~5mL/min speed, under nitrogen guard mode, with 8~10 DEG C/min speed journeys
Sequence is warming up to 550~650 DEG C, is incubated 30~45min of carbonization, obtains carbonization walnut shell powder；
（2）300~500g spent bleaching clays are weighed, in being placed in Muffle furnace, under the conditions of temperature is for 400~500 DEG C, 2~3h is calcined, is treated
Room temperature is naturally cooled to, the spent bleaching clay after 100~120g calcinings is weighed successively, 60~80g carbonization walnut shell powders are poured into and filled
In the beaker of 400~500mL dehydrated alcohol, 10~20mL titanate coupling agent NDZ-201 are added, then beaker is placed in into water-bath
It is under the conditions of 55~60 DEG C, with Glass rod stirring 15~20min of mixing, to filter in temperature in pot, collects filter cake, and by gained
Filter cake is proceeded in baking oven, is dried to constant weight under the conditions of temperature is for 105~110 DEG C, then is poured in mortar, and 200 mesh are crossed after grinding
Sieve, obtains modified mixed-powder, standby；
（3）300~400g flyash is weighed, the burning for filling that 600~800mL concentration is 1~2mol/L sodium hydroxide solutions is poured into
In cup, then beaker is placed in into digital display tests the speed in constant temperature blender with magnetic force, be 75~80 DEG C in temperature, rotating speed is 600~800r/
24~48h of constant temperature stirring reaction under the conditions of min, filters, and collects filter cake, and in being washed with deionized filter cake until cleaning mixture is in
Property, then the filter cake after washing is proceeded in baking oven, it is dried to constant weight under the conditions of temperature is for 105~110 DEG C, then will be dried
Filter cake is placed in mortar, and 325 mesh sieves are crossed after grinding, obtains modified coal ash；
（4）Count by weight, 80~120 parts of steps are sequentially added in batch mixer（2）Standby modified mixed-powder, 150~
200 parts of above-mentioned gained modified coal ash, 30~50 parts of Maifanitums, 10~15 parts of hydroxyapatite, 3~5 parts of calcium hydroxide, with
800~1000r/min rotating speeds stirring 45~60min of mixing, discharging obtains compound；
（5）Above-mentioned gained compound is proceeded to into steam curing box, under the conditions of temperature is for 98~100 DEG C, steam curing 6~8 days,
And during conserving, compound is removed every 6~8h, Jing after ball mill 15~30min of ball milling, move in curing box and continue
Maintenance is processed, and treats that maintenance terminates, and compound in curing box is proceeded in baking oven, is dried extremely under the conditions of temperature is for 105~110 DEG C
Constant weight, obtains final product green concrete hole path pressure grouting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611211669.0A CN106673477A (en) | 2016-12-25 | 2016-12-25 | Preparation method of green concrete duct grouting material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611211669.0A CN106673477A (en) | 2016-12-25 | 2016-12-25 | Preparation method of green concrete duct grouting material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106673477A true CN106673477A (en) | 2017-05-17 |
Family
ID=58871321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611211669.0A Pending CN106673477A (en) | 2016-12-25 | 2016-12-25 | Preparation method of green concrete duct grouting material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106673477A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111548072A (en) * | 2020-05-30 | 2020-08-18 | 闫志伟 | High-strength high-performance concrete and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101092239A (en) * | 2007-06-25 | 2007-12-26 | 高凤仙 | Method for preparing super active carbon based on hickory with coal being adulterated |
| CN101817656A (en) * | 2009-02-26 | 2010-09-01 | 北京东方雨虹防水技术股份有限公司 | Post stressed concrete beam pipe mudjacking agent |
| CN102276218A (en) * | 2011-05-20 | 2011-12-14 | 中国铁道科学研究院铁道建筑研究所 | Low negative temperature post-tensioned beam prestress pipeline mudjacking material |
| CN103172296A (en) * | 2011-12-21 | 2013-06-26 | 中冶建筑研究总院有限公司 | Post-tensioned pre-stressed concrete beam pipeline grouting agent |
| CN105733062A (en) * | 2016-03-18 | 2016-07-06 | 中国石油大学胜利学院 | Method for preparing oil-based composite oil product drag reducer from finished oil decoloring spent bleaching clay |
-
2016
- 2016-12-25 CN CN201611211669.0A patent/CN106673477A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101092239A (en) * | 2007-06-25 | 2007-12-26 | 高凤仙 | Method for preparing super active carbon based on hickory with coal being adulterated |
| CN101817656A (en) * | 2009-02-26 | 2010-09-01 | 北京东方雨虹防水技术股份有限公司 | Post stressed concrete beam pipe mudjacking agent |
| CN102276218A (en) * | 2011-05-20 | 2011-12-14 | 中国铁道科学研究院铁道建筑研究所 | Low negative temperature post-tensioned beam prestress pipeline mudjacking material |
| CN103172296A (en) * | 2011-12-21 | 2013-06-26 | 中冶建筑研究总院有限公司 | Post-tensioned pre-stressed concrete beam pipeline grouting agent |
| CN105733062A (en) * | 2016-03-18 | 2016-07-06 | 中国石油大学胜利学院 | Method for preparing oil-based composite oil product drag reducer from finished oil decoloring spent bleaching clay |
Non-Patent Citations (3)
| Title |
|---|
| 宋小平等: "《石油工业用添加剂生产与应用技术》", 31 March 2014 * |
| 粮食大词典编辑委员会编: "《粮食大词典》", 31 December 2009 * |
| 郭振华等: ""碱对粉煤灰的活化及吸附性能的研究"", 《功能材料 2010年论文集》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111548072A (en) * | 2020-05-30 | 2020-08-18 | 闫志伟 | High-strength high-performance concrete and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100558669C (en) | A kind of composite water-retaining thickening material and using method thereof that is used for commodity mortar | |
| CN102515681B (en) | Method for producing aerated building block with phosphogypsum as main raw material | |
| CN100424034C (en) | Compound bricks of phosphogypsum, and producing method | |
| CN103880352B (en) | A kind of preparation method of high-performance pile tube | |
| CN104193263B (en) | Utilize construction waste to prepare the method for environment-friendly insulating building block | |
| CN102276218B (en) | Low negative temperature post-tensioned beam prestress pipeline mudjacking material | |
| CN104119099B (en) | A kind of regenerated foam concrete and preparation method thereof | |
| CN112266193A (en) | Artificial steel slag aggregate and preparation method and application thereof | |
| CN113387620A (en) | Solidified dredged sludge block based on alkali-activated cementing material and preparation method thereof | |
| CN101863072A (en) | Internal curing process for improving performance of high strength and slight expansion concrete | |
| CN106517978A (en) | Light-weight thermal mortar taking ardealite hydraulic compound gel material as principal material | |
| CN101209909B (en) | Cement-free calcination-free shale pressing bearing brick and preparation thereof | |
| CN101328052A (en) | Hill sand inorganic grouting material, preparation and construction method thereof | |
| CN105503102A (en) | Early-strength sprayed concrete | |
| CN108129160A (en) | A kind of light heat-insulation wall material and preparation method thereof | |
| CN107117914A (en) | High-strength freeze proof grouting material and preparation method thereof | |
| CN112960922A (en) | Desulfurized fly ash based cementing material and preparation and application thereof | |
| CN101168483B (en) | High-performance panel concrete and preparation method thereof | |
| CN108455921B (en) | Preparation method of fly ash brick | |
| CN107572997A (en) | A kind of permanent seal cooling blast furnace granulated slag building block | |
| CN104030649A (en) | Production process for high-strength high-volume phosphogypsum baking-free brick | |
| CN106673477A (en) | Preparation method of green concrete duct grouting material | |
| CN104045308A (en) | Concrete, concrete pipe pile and preparation method thereof | |
| CN106380828A (en) | Preparation method of polyurethane heat preservation plate | |
| CN108793919A (en) | A kind of composite heat insulation block and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170517 |
|
| WD01 | Invention patent application deemed withdrawn after publication |