CN107324746A - A kind of new gravity flowing levelling mortar and its production technology - Google Patents
A kind of new gravity flowing levelling mortar and its production technology Download PDFInfo
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- CN107324746A CN107324746A CN201710589920.5A CN201710589920A CN107324746A CN 107324746 A CN107324746 A CN 107324746A CN 201710589920 A CN201710589920 A CN 201710589920A CN 107324746 A CN107324746 A CN 107324746A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/141—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing dihydrated gypsum before the final hardening step, e.g. forming a dihydrated gypsum product followed by a de- and rehydration step
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/143—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being phosphogypsum
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/144—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/60—Flooring materials
- C04B2111/62—Self-levelling compositions
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/05—Materials having an early high strength, e.g. allowing fast demoulding or formless casting
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
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Abstract
The present invention relates to a kind of new gravity flowing levelling mortar and its production technology, each component percentage by weight is as follows：Modified cement 3 60%, modified semi-hydrated gypsum 10 66%, flyash 0.1 8%, cement modifier 0.07 1.5%, gypsum modifying agent 0.05 1.5%, adjustable solidification agent 0.04 0.8%, resists swollen dose 0.01 0.1%, stabilizer 0.01 0.2%, defoamer 0.01 0.2%, toner 0.2 0.4%, slip agent 0.05 0.13% gathers materials 30 86%.This new gravity flowing levelling mortar by natural semi-hydrated gypsum, the secondary gypsum of Industrial Solid be modified with flyash and modified cement it is compound after form new construction material, and realize production levelability more preferably, tensile strength is higher, compression strength is higher, setting time is adjustable, efficiency of construction is higher, never ftracture, novel product applied widely, with low cost.
Description
Technical field
The present invention relates to building material field, more particularly to a kind of new gravity flowing levelling mortar and its production technology.
Background technology
In architectural engineering, mortar is important common used material, especially ground mortar, it is often more important that each building
Such as house, industrial premises and hospital, often locate the material that ground must all be used, and people apply to save human and material resources, raising
Work speed, civilized construction, reduction pollution, using the gravity flowing levelling mortar of Automatic Levelling, prior art cement-based self-leveling mortar：With
Material based on cement, using sand as auxiliary material, adds the composition such as accelerator, water reducer, water-loss reducer, the shortcoming of cement base
It is：1st, cement-based self-leveling mortar rate of set is slow, and early strength is low, it is necessary to which 28 days can be only achieved maximum intensity, so construction
Efficiency is low.2nd, cement-based self-leveling mortar, the feature of cement has shrinkage, so the construction of inevitable large area, occurs
Cracking phenomena, is an insurmountable common fault in industry, is also the bottleneck for hindering cement-based self-leveling development.3rd, cement base from
Levelling material based on cement, in order to which water conservation needs maintenance in work progress, thus it is strict to construction environment requirement, less
Obtain in outdoor application, add difficulty of construction and limit the scope of application.4th, cement-based self-leveling material based on cement, cement
Energy consumption consumption is big in process of production, and environmental pollution is big, is unfavorable for saving the energy and environmental protection.
Gypsum based self-leveling material based on α high strength gypsums, by α high strength gypsums, retarder, water reducer, water-loss reducer, disappears
The obtained gravity flowing levelling mortar of the composition such as infusion, dispersible rubber powder.It has high, fast, environmental protection and energy saving of speed of application of early strength etc.
Advantage, but it has the disadvantage：1st, gypsum water absorption rate is high, wears no resistance, it is impossible to be used in moist environment, can not be used for industrial ground
The load-bearing such as level ground, underground garage and openly out of the void between use, this is also puzzlement gypsum based self-leveling can not develop for many years bottleneck
Problem.2nd, α high strength gypsums complex manufacturing, yield poorly, cost it is high, its cost is more than 2 times of cement-based self-leveling, so
It cannot get the accreditation in market.
Due to environment protection career development the need for, especially for reducing pollution of the sulfur dioxide to air, firepower
Power plant has all carried out desulfurization now, generates substantial amounts of desulfurated plaster, ardealite is that phosphoric acid and phosphate fertilizer plant are used at phosphoric acid
The substantial amounts of solid slag produced during reason ore deposit, Citric Acid Plant produces 1 ton of citric acid and produces 3 tons of discarded object lemon gypsum tailings, saltern
Discarded object bunt gypsum and production hydrofluoric acid produce substantial amounts of fluorgypsum slag, the limitation used in China due to industrial secondary gypsum
Property, it can not be got utilization in China's building material industry, a large amount of secondary gypsum accumulations of industry cause secondary pollution to environment
With destruction.
The content of the invention
To solve problems of the prior art, the present invention proposes a kind of new gravity flowing levelling mortar and its production technology,
It can realize that efficiency of construction is high, intensity is high, not ftracture, it is applied widely, with low cost；And energy resource consumption can be reduced,
Reduce environmental pollution.
To achieve the above object, the present invention proposes a kind of new gravity flowing levelling mortar, and each component percentage by weight is as follows：
Modified cement 3-60%, modified semi-hydrated gypsum 10-66%, flyash 0.1-8%, cement modifier 0.07-1.5%, gypsum changes
Property agent 0.05-1.5%, adjustable solidification agent 0.04-0.8%, resist swollen dose of 0.01-0.1%, stabilizer 0.01-0.2%, defoamer 0.01-
0.2%, toner 0.2-0.4%, slip agent 0.05-0.13%, gather materials 30-86%.
The modified semi-hydrated gypsum is the half water natural gypsum, desulfurated plaster, ardealite, fluorgypsum, bunt gypsum or lemon stone
One or more in cream.
The cement modifier includes：Water reducer 80-90%, 200 mesh Paris white 10-20%.
The gypsum modifying agent includes：Gypsum base water reducer 64-96%, silica flour 3-20%, melamine 0.9-10%, sulfuric acid
Magnesium 0.1-6%.
The adjustable solidification agent is anhydrous gypsum or phosphate；Anti- swollen dose is polycarboxylate or lignosulfonates；The stabilization
Agent is polyacrylate, cellulose, natural rubber or rubber powder；The slip agent is gelatine or non-ionic surfactant；It is described
Gather materials for quartz sand, Machine-made Sand, pottery sand or river sand.
A kind of production technology of new gravity flowing levelling mortar, comprises the following steps：
1）The modified cement is that Portland cement or alumina cement are added after cement modifier in proportion, in 10-70 degree
At a temperature of be sufficiently stirred for, after aged 90 minutes it is closed storage it is standby；The modified semi-hydrated gypsum is half water high strength gypsum or built
Build gypsum to add in proportion after gypsum modifying agent, be sufficiently stirred at a temperature of 1-40 degree, then be aged after 120 minutes it is closed storage it is standby
With；
2）By above-mentioned modified cement and modified semi-hydrated gypsum and flyash in proportion, it is sufficiently stirred for, is aged at a temperature of 1-40 degree
Closed storage is standby after reacting 2 days；
3）By the material of above-mentioned preparation, adjustable solidification agent is proportionally added into order, anti-swollen dose, stabilizer, slip agent is in 0-30 degree temperature
It is sufficiently stirred under degree, the closed standby obtained A materials of storage after being aged 3 days；
4）The A materials that upper step is made are mixed to prepare mortar in proportion with gathering materials again.
It is preferred that, in the 4th step, A materials account for the 50-70% of this gravity flowing levelling mortar material gross mass, gather materials and account for this gravity flow
The 30-50% of flat mortar gross mass；Gather materials quartz sand or Machine-made Sand including 0.05-0.2mm mesh numbers accounts for the 50- of aggregate quality
The quartz sand or Machine-made Sand of 70%, 0.1-0.3mm mesh number account for the 30-50% of aggregate quality；
Materials A is quantitatively delivered continuously to mixer with spiral reamer, while standby gathering materials quantitatively is delivered continuously into stirring
Machine；It is sufficiently stirred for 3-5 minutes, passes through metering packing device package；Storage.
It is preferred that, in the 4th step, A materials account for the 50-70% of this gravity flowing levelling mortar material gross mass, gather materials and account for this gravity flow
The 30-50% of flat mortar gross mass；
The quartz sand or Machine-made Sand gathered materials including 0.05-0.2mm mesh numbers accounts for the 50-70% of aggregate quality, 0.1-0.3mm mesh
Several quartz sand or Machine-made Sand accounts for the 30-50% of aggregate quality；
Materials A is quantitatively delivered continuously to mixer with spiral reamer, while standby gathering materials quantitatively is delivered continuously into stirring
Machine；It is sufficiently stirred for 3-5 minutes, passes through metering packing device package；Storage.
It is preferred that, in the 4th step, A materials account for the 60-80% of this gravity flowing levelling mortar material gross mass, gather materials and account for this gravity flow
The 20-40% of flat mortar gross mass；
It is described gather materials account for the 100% of aggregate quality for the pottery sand of 0.1-3mm mesh numbers.
Beneficial effect：
After this new gravity flowing levelling mortar construction, early strength is high, and 24h resistance to compressions are up to 20MPa, and the anti-foldings of 24h are current up to 4MPa
International gravity flowing levelling mortar highest index.The good fluidity of this new gravity flowing levelling mortar, 30min frees of losses, fluidity reaches
150mm, is current domestic highest index.Imported product can be replaced, is filled the domestic gaps.Strong, the stretch-proof with substrate bonding force
1.2MPa is reached, more than national standard.
This new gravity flowing levelling mortar is applied widely, is that gravity flowing levelling mortar is started available for indoor and outdoor varying environment
New application field；The problem that floor heating backfill cement mortar can not be levelling can be solved, it is with low cost to replace light water silt particle
Slurry.This mortar is "dead", CO in production process2Discharge capacity is low, is environmental protection and energy saving mortar；
This mortar utilizes power plant waste desulfurated plaster, flyash, phosphate fertilizer plant's waste ardealite, Citric Acid Plant discarded object lemon
Gypsum, salt field waste bunt gypsum, solve power plant, phosphate fertilizer plant, Citric Acid Plant, sugar refinery, the recycling of saltern solid waste
Utilize.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with and embodiment, to this hair
It is bright to be further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and without
It is of the invention in limiting.
With reference to embodiment, the invention will be further described：
First, preferably, A materials account for the 50-70% of this gravity flowing levelling mortar material gross mass, gather materials and account for this gravity flowing levelling mortar material gross mass
30-50%；Gather materials quartz sand or Machine-made Sand including 0.05-0.2mm mesh numbers accounts for the 50-70%, 0.1-0.3mm of aggregate quality
The quartz sand or Machine-made Sand 30-50% of mesh number；Materials A is quantitatively delivered continuously to mixer with spiral reamer, while will be standby
Gather materials and be quantitatively delivered continuously to mixer；It is sufficiently stirred for 3-5 minutes, passes through metering packing device package；Storage.Mortar when using
It is 18-21% with water ratio, is sufficiently stirred for 2-3 minutes.It can be used, its construction method and cement base and gypsum based self-leveling
Equally.This proportioning, which is applied to heavy ground, needs the ground of high abrasion degree, such as industrial premises, garage parking（）, Aircraft Hangar etc.
Situation.
This product feature：
1）Good leveling property is produced, 30min frees of losses fluidity can do more than 2mm thickness up to 150mm, thickness range.
2）Tensile strength height, tensile strength can thoroughly solve the problems, such as the hollowing that ftractures up to 1.3MPa.
3）Compression strength is high, 24h can reach 20MPa, can reach within 7 days 45MPa, anti-folding 24h is reachable more than 50MPa within 28 days
To 4MPa, 7MPa is can reach within 7 days, 28 days more than 12MPa.Fully achieve load-bearing and wheel rolling is required.
4）Setting time is fast, and 24h completely can be with other operations on ground.Substantially increase efficiency of construction.
5）The severe construction environments such as outdoor can be used.Without maintenance.
6）PH value is 10, low to various material corrosive properties.
2nd, preferably, in the 4th step, A materials account for the 50-70% of this gravity flowing levelling mortar material gross mass, gather materials and account for this
The 30-50% of gravity flowing levelling mortar material gross mass；
The quartz sand or Machine-made Sand gathered materials including 0.05-0.2mm mesh numbers accounts for the 50-70% of aggregate quality, 0.1-0.3mm mesh
Several quartz sand or Machine-made Sand accounts for the 30-50% of aggregate quality；Materials A is quantitatively delivered continuously to mixer with spiral reamer, together
When standby gathering materials quantitatively is delivered continuously to mixer；It is sufficiently stirred for 3-5 minutes, passes through metering packing device package；Storage.
Mortar and water ratio are 18-21% when using, and are sufficiently stirred for 2-3 minutes.It can be used, phase construction method and cement base and stone
Cream base Self-leveling is the same.This proportioning is applied to the face of light-duty important place face high abrasion degree, such as hospital, high-grade place, medicament compartment.
This product feature：
1）Produce good leveling property, 30min free of losses fluidities up to 140mm,
2）Tensile strength height, tensile strength can thoroughly solve the problems, such as the hollowing that ftractures up to 1.2MPa.
3）Compression strength is high, 24h can reach 17MPa, can reach within 7 days 20MPa, anti-folding 24h is reachable more than 26MPa within 28 days
To 2.6MPa, 5.5MPa is can reach within 7 days, 28 days more than 10MPa.Fully achieve light load-carrying requirement.
4）Setting time is fast, and 24h completely can be with other operations on ground.Substantially increase efficiency of construction.
5）A variety of colors Horizon can be done, the requirement on different colours ground can be met.
6）PH value is 8.5, low to various material corrosive properties.Product is more environmentally friendly.
3rd, preferably, in the 4th step, A materials account for the 60-80% of this gravity flowing levelling mortar material gross mass, gather materials and account for this
The 20-40% of gravity flowing levelling mortar material gross mass；
The pottery sand gathered materials for 0.1-3mm mesh numbers accounts for the 100% of collection doses.By the A materials quantitative continuous conveying of spiral reamer
To mixer, while standby gathering materials quantitatively is delivered continuously into mixer.It is sufficiently stirred for 3-5 minutes, is filled by metering packing
Packaging is put, is put in storage.Mortar and water ratio are 14-18% when using, and are sufficiently stirred for 2-3 minutes.It can be used, its construction method
With cement base as gypsum based self-leveling.This proportioning is applied to ground backfill or leveling mortar is raised on ground.
This product feature：
1）Product unit weight is low, and density is 1000 kilograms/cubic metre, well below the weight of cement mortar, reduces monolithic architecture
Thing weight.
2）Thermal conductivity factor is 0.45W/m.k, with more preferable thermal and insulating performance, and with sound insulation value.It is at present
Face is backfilled or the incomparable regeneration product of leveling mortar is raised on ground.
3）Compression strength is high, 24h can reach 6MPa, can reach within 7 days 16MPa, anti-folding 24h can reach more than 20MPa within 28 days
2.5MPa, 28 days more than 20MPa.National cement-based self-leveling is fully achieved to require with gypsum base standard.
4）Setting time is fast, and 24h completely can be with other operations on ground.Substantially increase efficiency of construction.
Example 1：Do 100 square metres of the actual mill floors of 6mm.
Match and be：A materials account for the 70% of this gravity flowing levelling mortar material gross mass, gather materials and account for this gravity flowing levelling mortar material gross mass
30%.Gather materials and account for the 20% of this gravity flowing levelling mortar material gross mass, 0.1-0.3mm with river sand for the quartz sand of 0.05-0.2mm mesh numbers
The quartz sand of mesh number accounts for the 10% of this gravity flowing levelling mortar material gross mass with river sand.
A materials are quantitatively delivered continuously to mixer with spiral reamer, while standby quantitative continuous conveying of gathering materials is sent
To mixer.It is sufficiently stirred for 4 minutes, passes through metering packing device package.
Mortar and water ratio are 18.5% when using, and are sufficiently stirred for 3 minutes.Its construction method and cement base and gypsum base are certainly
Levelling is the same.
Site operation situation：
1st, 4 hours can above people operation, and can more than light-duty wheel car.
2nd, 24 hours, 3 ton forklift operations did not found cracking, dusting, hollowing problem.Ground is still being used within 2 years.This implementation
Example, which is applied to heavy ground, needs the ground of high abrasion degree, such as industrial premises, garage parking（）, Aircraft Hangar etc..
Example 2：200 square metres are done outside the actual workshops of 15mm.
Match and be：A materials account for the 70% of this gravity flowing levelling mortar material gross mass, gather materials and account for this gravity flowing levelling mortar material gross mass
30%.Gather materials and account for the 20% of this gravity flowing levelling mortar material gross mass, 0.1-0.3mm with river sand for the quartz sand of 0.05-0.2mm mesh numbers
The quartz sand of mesh number accounts for the 10% of this gravity flowing levelling mortar material gross mass with river sand.
A materials are sent to mixer with the quantitative continuous conveying of spiral reamer, while by standby quantitative continuous conveying of gathering materials
It is sent to mixer.It is sufficiently stirred for 4 minutes, passes through metering packing device package.
Mortar and water ratio are 18.5% when using, and are sufficiently stirred for 3 minutes.Its construction method and cement base and gypsum base are certainly
Levelling is the same.
Site operation situation：
1st, 3 hours can above people operation, and can more than light-duty wheel car.
2nd, 24 hours, 10 tons of traction engines passed through, and 40 tons of carrier vehicles do not find that cracking, dusting, hollowing are asked by rolling, after 7 days
Topic.Half a year, ground still used.
Example 3：Do actual 30 square metres of the room floors of office of 5mm.
Match and be：A materials account for the 50% of this gravity flowing levelling mortar material gross mass, gather materials and account for this gravity flowing levelling mortar material gross mass
50%.It is that 0.05-0.2mm river sands account for the 40% of this gravity flowing levelling mortar material gross mass to gather materials for granularity, and 0.1-0.3mm river sands account for this
The 10% of gravity flowing levelling mortar material gross mass.
A materials are sent to mixer with the quantitative continuous conveying of spiral reamer, while by standby quantitative continuous conveying of gathering materials
It is sent to mixer.It is sufficiently stirred for 4 minutes, passes through metering packing device package.
Mortar and water ratio are 20% when using, and are sufficiently stirred for 3 minutes.Its construction method is flow automatically with cement base with gypsum base
It is flat the same.
Site operation situation：
1st, 3 hours can above people operation, and can more than light-duty wheel car.
2nd, worked after 24 hours in normal activity, cracking, dusting, hollowing problem are not found.Half a year, ground still used.
Example 4：Do the square meter of 30mm actual grounds 30.
Match and be：A materials account for the 80% of this gravity flowing levelling mortar material gross mass, gather materials（Haydite）Account for this gravity flowing levelling mortar material total
The 20% of quality.Kilogram/cubic metre of unit weight 1050；It is 1-2mm haydites to gather materials for granularity.
GFD materials are sent to mixer with the quantitative continuous conveying of spiral reamer, while standby gathering materials is quantitatively continuous defeated
It is sent to mixer.It is sufficiently stirred for 4 minutes, passes through metering packing device package.
Mortar and water ratio are 16% when using, and are sufficiently stirred for 3 minutes.Its construction method is flow automatically with cement base with gypsum base
It is flat the same.
Site operation situation：
1st, 8 hours can above people operation.
2nd, worked after 24 hours in normal activity, cracking, dusting, hollowing problem are not found.Half a year, ground still used.
New gravity flowing levelling mortar and international top-brand and national cement-based self-leveling, stone that present example 1,2,3,4 is obtained
Cream base Self-leveling standard comparing：
It can be seen that from upper table：New gravity flowing levelling mortar apparently higher than cement self-leveling mortar and gypsum based self-leveling mortar,
It is more extensive using scope, it can fill the domestic gaps.
Example 5：Do the square meter of 100mm actual grounds 10.
Match and be：A materials account for the 30% of this gravity flowing levelling mortar material gross mass, gather materials and account for this gravity flowing levelling mortar material gross mass
70%.Gather materials and account for the 40% of this gravity flowing levelling mortar material gross mass for the Machine-made Sand of 0.05-0.6mm mesh numbers, 0.5-1.2mm mesh numbers
Machine-made Sand accounts for the 30% of this gravity flowing levelling mortar material gross mass.
A materials are sent to mixer with the quantitative continuous conveying of spiral reamer, while by standby quantitative continuous conveying of gathering materials
It is sent to mixer.It is sufficiently stirred for 4 minutes, passes through metering packing device package.
Mortar and water ratio are 14% when using, and are sufficiently stirred for 3 minutes.Its construction method is flow automatically with cement base with gypsum base
It is flat the same.
Site operation situation：
1st, 6 hours can above people operation, and can above light rail motor tractor.
2nd, worked after 24 hours in normal device installation activity, cracking, dusting, hollowing problem are not found.Half a year ground still
Using, no cracking shrinkage phenomenon.
3rd, its indices exceedes strength cement-based grouting material materials application specification.
| Initial flow Dynamic degree mm | 30 minutes Fluidity mm | 24 hours Pressure resistance Spend MPa | Resist within 28 days Compressive Strength MPa | 24 hours Anti- folding is strong Spend MPa | Resist within 28 days Roll over intensity MPa | 28 days swollen Swollen rate % | 28 days tables Face Mohs Hardness | |
| 360 | 350 | 22.6 | 86.2 | 3.2 | 8.1 | +0.01 | 6 | |
The new gravity flowing levelling mortar of the present invention：
Power plant waste desulfurated plaster, phosphate fertilizer plant's waste ardealite, Citric Acid Plant discarded object lemon gypsum, salt field waste salt
The semi-hydrated gypsum of gypsum production is modified carries out hybrid reaction formation new material with modified cement and flyash.
Power plant waste desulfurated plaster raw material is that the finishing of power plant stack gas desulfurated plaster byproduct is made, it is possible to resolve desulfurization
Gypsum resourceization comprehensively utilizes problem.Properties exceed the technical standard of national regulation, and a kind of product meets two kinds
The standard of product.Gravity flowing levelling mortar is "dead", meets the requirement of environmentally friendly mortar.
It is of the invention with domestic and international cement-based self-leveling mortar compared with gypsum based self-leveling mortar product, by natural half water stone
Cream, Industrial Solid pair gypsum, which are modified after being combined with flyash and modified cement, forms new construction material, and realizes
Production levelability is more preferably, tensile strength is higher, compression strength is higher, setting time is adjustable, efficiency of construction is higher, never open
Split, novel product applied widely, with low cost.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (9)
1. a kind of new gravity flowing levelling mortar, it is characterised in that：Each component percentage by weight is as follows：
Modified cement 3-60%, modified semi-hydrated gypsum 10-66%, flyash 0.1-8%, cement modifier 0.07-1.5%, gypsum changes
Property agent 0.05-1.5%, adjustable solidification agent 0.04-0.8%, resist swollen dose of 0.01-0.1%, stabilizer 0.01-0.2%, defoamer 0.01-
0.2%, toner 0.2-0.4%, slip agent 0.05-0.13%, gather materials 30-86%.
2. gravity flowing levelling mortar according to claim 1, it is characterised in that：The modified semi-hydrated gypsum is half water natural stone
One or more in cream, desulfurated plaster, ardealite, fluorgypsum, bunt gypsum or lemon gypsum.
3. gravity flowing levelling mortar according to claim 1, it is characterised in that：The cement modifier includes：Water reducer 80-
90%, 200 mesh Paris white 10-20%.
4. gravity flowing levelling mortar according to claim 1, it is characterised in that：The gypsum modifying agent includes：Gypsum base diminishing
Agent 64-96%, silica flour 3-20%, melamine 0.9-10%, magnesium sulfate 0.1-6%.
5. gravity flowing levelling mortar according to claim 1, it is characterised in that：The adjustable solidification agent is anhydrous gypsum or phosphate；
Anti- swollen dose is polycarboxylate or lignosulfonates；The stabilizer is polyacrylate, cellulose, natural rubber or rubber powder；
The slip agent is gelatine or non-ionic surfactant；It is described to gather materials for quartz sand, Machine-made Sand, pottery sand or river sand.
6. the production technology of the gravity flowing levelling mortar described in claim 1 to 5 any claim, it is characterised in that：Including following
Step：
1）The modified cement is that Portland cement or alumina cement are added after cement modifier in proportion, in 10-70 degree
At a temperature of be sufficiently stirred for, after aged 90 minutes it is closed storage it is standby；The modified semi-hydrated gypsum is half water high strength gypsum or built
Build gypsum to add in proportion after gypsum modifying agent, be sufficiently stirred at a temperature of 1-40 degree, then be aged after 120 minutes it is closed storage it is standby
With；
2）By above-mentioned modified cement and modified semi-hydrated gypsum and flyash in proportion, it is sufficiently stirred for, is aged at a temperature of 1-40 degree
Closed storage is standby after reacting 2 days；
3）Material prepared by above-mentioned 2nd step, is proportionally added into adjustable solidification agent in order, anti-swollen dose, stabilizer, and slip agent is in 0-30
It is sufficiently stirred at a temperature of degree, the closed standby obtained A materials of storage after being aged 3 days；
4）The A materials that upper step is made are mixed to prepare mortar in proportion with gathering materials again.
7. production technology according to claim 6, it is characterised in that：
In the 4th step, A materials account for the 50-70% of this gravity flowing levelling mortar material gross mass, and gathering materials, it is total to account for this gravity flowing levelling mortar material
The 30-50% of quality；
The quartz sand or Machine-made Sand gathered materials including 0.05-0.2mm mesh numbers accounts for the 50-70% gathered materials, 0.1-0.3mm mesh numbers
Quartz sand or Machine-made Sand account for the 30-50% gathered materials；
Materials A is quantitatively delivered continuously to mixer with spiral reamer, while standby gathering materials quantitatively is delivered continuously into stirring
Machine；It is sufficiently stirred for 3-5 minutes, passes through metering packing device package；Storage.
8. production technology according to claim 6, it is characterised in that：
In the 4th step, A materials account for the 40%-60% of this gravity flowing levelling mortar material gross mass, and gathering materials, it is total to account for this gravity flowing levelling mortar material
The 40%-60% of quality；
The river sand including 0.05-0.2mm mesh numbers of gathering materials accounts for the 50-70% gathered materials, and the river sand of 0.1-0.3mm mesh numbers, which is accounted for, gathers materials
30-50%；
Materials A is quantitatively delivered continuously to mixer with spiral reamer, while standby gathering materials quantitatively is delivered continuously into stirring
Machine；It is sufficiently stirred for 3-5 minutes, passes through metering packing device package；Storage.
9. production technology according to claim 6, it is characterised in that：
In the 4th step, A materials account for the 60%-80% of this gravity flowing levelling mortar material gross mass, and gathering materials, it is total to account for this gravity flowing levelling mortar material
The 20%-40% of quality；
It is described gather materials account for the 100% of aggregate quality for the pottery sand of 0.1-3mm mesh numbers.
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| CN115353346A (en) * | 2022-08-16 | 2022-11-18 | 一夫科技股份有限公司 | Self-leveling anti-crack mortar and preparation method thereof |
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Application publication date: 20171107 |