CN108314399A - A kind of gypsum base preventing the accumulation of salt in the surface soil pours mortar material and preparation method thereof - Google Patents
A kind of gypsum base preventing the accumulation of salt in the surface soil pours mortar material and preparation method thereof Download PDFInfo
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- CN108314399A CN108314399A CN201810194495.4A CN201810194495A CN108314399A CN 108314399 A CN108314399 A CN 108314399A CN 201810194495 A CN201810194495 A CN 201810194495A CN 108314399 A CN108314399 A CN 108314399A
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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
-
- 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
- C04B28/142—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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2023—Resistance against alkali-aggregate reaction
-
- 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
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
-
- 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
Abstract
The invention belongs to building material technical fields, mortar and preparation method thereof is poured more particularly to a kind of gypsum base preventing the accumulation of salt in the surface soil, the present invention is improved by the water-retaining agent and suppression alkaline agent added in gypsum, microcrystalline cellulose is used in combination with water-retaining agent is mixed, it with synergistic effect, reduces dosage, reduce cost, using mixing water-retaining agent and suppression alkaline agent, the gypsum accumulation of salt in the surface soil can not only be inhibited, also add the intensity of gypsum.In addition the gypsum base material that the present invention obtains has Lightness, fire protection flame retarding, metope perfection.
Description
Technical field
The invention belongs to building material technical fields, and in particular to a kind of to prevent the gypsum base of the accumulation of salt in the surface soil from pouring mortar and its system
Preparation Method.
Background technology
The mobile pouring type non-bearing gypsum wall application technology in scene be in order to solve existing interior wall build by laying bricks or stones present in it is stupid
Solidity problem and a kind of novel construction process method researched and developed can substantially reduce production cost using the technique, shorten construction work
Phase, the wall integrity poured is preferable, does not crack, smooth, smooth, and plastering is not had to after one-pass molding, and light, heat preservation, is prevented sound insulation
Fire, and material is non-volatile, radiationless, free from insect pests, can autonomous respiration damping, people occupies comfort level height, and speed of application compares similar technique
Improve 3 times or more, while the energy saving reduction energy consumption of this technology.The technology is the primary leather to existing similar wall construction technology
Life property is broken through.The fit applications of cast in place technique and gypsum base pouring material are even more to have pushed the technological development for pouring wall to new platform
Rank, but since the water resistance of gypsum base material is poor, exterior wall wall is all not achieved in the coefficient of softing and water absorption rate of common gypsum product
The requirement of body standard becomes and restricts an important factor for gypsum polystyrene plate large area uses.
Especially in modern architecture industry, over time, easily there is the phenomenon that accumulation of salt in the surface soil, the accumulation of salt in the surface soil in the metope of building
Refer to general family's building or silicate concrete and gypsum base material that engineering construction uses, after a period of time has passed, wall
Face will appear crystal as salt efflorescence.Rough house can directly precipitate crystal object, and paint of coating decorate etc. can be heaved, peeling, be held
It splits, fall off, such case can not take off all the year round, seriously affect appearance.
Cement base and the gypsum base metope surface accumulation of salt in the surface soil are commonly called as whiting or frosting, pass through the white pine repeatedly generated to the accumulation of salt in the surface soil
Soft substance carries out chemical analysis, the results showed that：The accumulation of salt in the surface soil largely generated is all insoluble in the calcium carbonate (CaCO of water3), once in a while
Also the minimal amount of other kinds of accumulation of salt in the surface soil can be found.These salts generally can under the action of the outside moistures such as sleet downstream and
It goes, but is not easy to remove in the corners such as section corner, presentation quality is had a huge impact.
Table 1：The chemical composition of accumulation of salt in the surface soil substance and source
| Chemical composition | Source |
| Ca(OH)2 | It is precipitated from concrete and mortar. |
| CaSO4.2H2O | Basic sulfatase and lime substance reaction；SO2 reacts to form H2SO3 with the moisture in air. |
| MgSO4.nH2O | If using seawater as mixing water. |
| CaCl2.nH2O | If used as antifreeze in concrete or mortar. |
| MgCl2.nH2O | If using seawater as mixing water. |
| CaCO3 | Ca (OH) 2 is reacted with the CO2 in air. |
| KCl,NaCl | From deicer salts. |
| Ca(NO3)2.nH2O | If the organic matter containing N is decomposed and is further reacted with Ca2+. |
Invention content
The above technical problem of the present invention provides a kind of gypsum base preventing the accumulation of salt in the surface soil and pours mortar material and its preparation side
Method.
It is realized particular by following technical scheme：
A kind of gypsum base preventing the accumulation of salt in the surface soil pours mortar material, is prepared by the raw material of following parts by weight：70 parts of gypsum,
28-30 parts of flyash, 1-3 parts of light mineral, 0.05-0.2 parts of water-retaining agent press down 0.01-0.05 parts of alkaline agent, retarder 0.01-
0.05 part.
Further, the gypsum base for preventing the accumulation of salt in the surface soil pours mortar material, further includes microcrystalline cellulose, microcrystalline cellulose is to alkali
There is an adsorptivity, alkali is mainly hydroxyl, 1-30kg/ tons of mortars of additive amount, and microcrystalline cellulose has synergistic effect to material, can reduce
Water-retaining agent and suppression alkaline agent dosage reduce cost.
Further, the gypsum is one or more of desulfurated plaster, ardealite, fluorgypsum, the natural gypsum.
Further, the flyash is the byproduct after coal-fired plant's coal burning, is from coal-fired plant's coal-powder boiler flue gas
The powder collected in body, it is desirable that the above flyash of three-level, natural deposited dry density should be not more than 0.8g/cm3, grain size 0.3-
1.5mm, closed pore shape particle.
Further, the light mineral is one or more of expanded perlite, glass bead, haydite.
Further, the water-retaining agent is water preservation, is ethoxy cation cellulose ether, hydroxypropyl cationic
Cellulose ether, hydroxypropyl cationic starch ether, cationic starch ether, bamboo charcoal powder are according to mass ratio 3-5:2-3:2-3:0.5-1.2:
0.3-0.8 is mixed, and wherein the viscosity (1%, 20 DEG C, Brookfield-LVT) of cellulose ether is 6000~12000mPa.s
Further, the bamboo charcoal powder is 20-30h in the environment of the sealing of fresh bamboo is deposited in 40-50 DEG C, low temperature
Drying, burning wait for bamboo after-flame, completely cut off air 2-3h, are positioned in 0-5 DEG C of environment, crush and both obtain.
Further, the suppression alkaline agent consists of the following compositions, and active silica, antifoaming agent, cellulose ether, sulfuric acid are sub-
Iron, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, mixed rosin, ethylenediamine tetra-acetic acid are according to mass ratio 2-2.5:2-2.5:2-2.5:1-
1.5:1-1.5:0.5-1:0.5-1 is mixed.
Further, the mixed rosin is by rosin：Cactus：Tea Saponin is according to mass ratio 5-7:0.5-1:0.2-
0.3 mixes.
Further, the mixed rosin, including following preparation process：
1) cactus removal surface thorn, liquid nitrogen flash freezer crush, and 0-60 DEG C of stirring of solution Isosorbide-5-Nitrae of 5-7 times of quality, mistake is added
Filter, filtrate concentration are spare；
2) by step 1) concentrate mixed with rosin, heating stirring 1-2h, freezing 20-30 min, in heating stirring,
Tea Saponin mixing is added.
Further, it is the sodium bicarbonate of 5-8% that the solution 1, which is by mass fraction, the glycerine of 1-3%, 2-5%'s
Sodium chloride mixes.
Further, the retarder is by sodium tripolyphosphate, amido polyoxy methyl calcium salt, silicate according to mass ratio 3:
2:1 mixes.
Further, described to prevent the gypsum base of the accumulation of salt in the surface soil from pouring mortar material, including following preparation process：
1), first by water-retaining agent, suppression alkaline agent, component weighs according to the ratio for retarder etc., be uniformly mixed and mixed
Additive；
2), by metering device, accurately in mass ratio by dry gypsum, aglite, flyash etc. and 1), middle mixing
Good additive is uniformly mixed to obtain dry-mixed mortar；
3), at the construction field (site), by 2), uniformly mixed dry-mixed mortar suitable quantity of water is added, make consistency in 80-100mm ranges,
Can be obtained prevents the gypsum base of the accumulation of salt in the surface soil from pouring mortar material.
In conclusion the beneficial effects of the present invention are：The present invention passes through the water-retaining agent that is added in gypsum and suppression alkaline agent
It is improved, using mixing water-retaining agent and suppression alkaline agent, can not only inhibit the gypsum accumulation of salt in the surface soil, also add the intensity of gypsum.In addition
The gypsum that the present invention obtains, has：
1, Lightness --- the weight of every square metre of partition wall of cast-in-situs gypsum wallboard is 65~105 kg, with common internal partition wall
Thickness 100mm meter, weighs about 90 kilograms, lighter by 64% than the clay brick wall of equivalent efficacy, than condition of equivalent thickness air entrained concrete brick and
Flyash brick gently about 40%, can save significantly on building bearing structure and foundation cost.
2, non-combustible also not combustion-supporting when fire protection flame retarding --- building materials of gypsum meets fire, the intrinsic crystallization water is released when meeting fire
It puts, absorbs amount of heat, before the crystallization water discharges completely, the temperature of building materials of gypsum is difficult to more than 100 DEG C, moreover, the crystallization water
Release be buffering course, therefore be a kind of good fire-proof shield.
3, suppression alkalinity --- can include by the main component for pouring the surface of wall accumulation of salt in the surface soil Ca (OH) 2, CaSO4.2H2O,
CaCl2.nH2O etc. reduces 70% or more.
4, the physical and chemical performance of metope perfection --- gypsum is stablized, and when extraneous temperature and humidity changes, gypsum is certainly
The dilation very little of body shows according to the experiment for gypsum internal partition wall body, can be in the air swollen within 9 meters of diaphragm wall body length
Therefore swollen compensating port is not in crack phenomenon with the wall that gypsum material is built up.
5, high human comfort --- it can effectively dehumidify and smell, purify the air of a room.Plastering is non-volatile, radiationless,
The disadvantages such as will not damage by worms, and obvious action is played to improving the comfort level lived.
6, autonomous respiration --- gypsum integral wall has autonomous breathing, and excess humidity can absorb quickly in room；
Moisture can be released again when climate change humidity reduces, without influencing wall firmness；Namely with atmospheric moisture in regulation room
Kryptoclimate is adjusted in the certain function of degree.Also evaporated condensation water, inhabitation are very comfortable when air humidity is higher for metope.
Specific implementation mode
Specific embodiments of the present invention will be described in further detail below, but the invention is not limited in these realities
Mode is applied, it is claimed to still fall within the claims in the present invention for any improvement or replacement on the present embodiment essence spirit
Range.
Embodiment 1
A kind of gypsum base preventing the accumulation of salt in the surface soil pours mortar material, is prepared by the raw material of following parts by weight：Gypsum 70kg,
Flyash 28kg, light mineral 1kg, water-retaining agent 0.05kg press down alkaline agent 0.01kg, retarder 0.01kg.
The gypsum is to be mixed in desulfurated plaster, ardealite, fluorgypsum, the natural gypsum.
The flyash is the byproduct after coal-fired plant's coal burning, is collected from coal-fired plant's coal-powder boiler flue gas
Powder, it is desirable that the above flyash of three-level, natural deposited dry density should be not more than 0.8g/cm3, grain size 0.3-1.5mm, closed pore
Shape particle.
The light mineral is expanded perlite, glass bead, haydite mix.
The water-retaining agent is water preservation, is ethoxy cation cellulose ether, hydroxypropyl cationic cellulose
Ether, hydroxypropyl cationic starch ether, cationic starch ether, bamboo charcoal powder are according to mass ratio 3:2:2:0.5:0.3 mixes, wherein
The viscosity (1%, 20 DEG C, Brookfield-LVT) of cellulose ether is 6000~12000mPa.s
The bamboo charcoal powder, is 20h in the environment of the sealing of fresh bamboo is deposited in 40 DEG C, and low temperature drying burns, waits for bamboo
Sub- after-flame completely cuts off air 2h, is positioned in 0 DEG C of environment, crushes and both obtained.
The suppression alkaline agent consists of the following compositions, active silica, antifoaming agent, cellulose ether, ferrous sulfate, naphthalene sulfonic acids
Formaldehyde condensation products sodium salt, mixed rosin, ethylenediamine tetra-acetic acid are according to mass ratio 2:2:2:1:1:0.5:0.5 mixes.
The mixed rosin is by rosin：Cactus：Tea Saponin is according to mass ratio 5:0.5:0.2 mixes.
The mixed rosin, including following preparation process：
1) cactus removal surface thorn, liquid nitrogen flash freezer crush, and 0 DEG C of stirring of solution Isosorbide-5-Nitrae of 5 times of quality is added, filters, filter
Liquid concentrates, spare；
2) concentrate that step 1) obtains is mixed, heating stirring 1h with rosin, freezes 20min, in heating stirring, tea is added
Saponin mixes.
The solution 1, be by mass fraction be 5% sodium bicarbonate, 1% glycerine, 2% sodium chloride mixing and
At.
The retarder is by sodium tripolyphosphate, amido polyoxy methyl calcium salt, silicate according to mass ratio 3:2:1 mixing
It forms.
Described prevents the gypsum base of the accumulation of salt in the surface soil from pouring mortar material, including following preparation process：
1), first by water-retaining agent, suppression alkaline agent, component weighs according to the ratio for retarder etc., be uniformly mixed and mixed
Additive；
2), by metering device, accurately in mass ratio by dry gypsum, aglite, flyash etc. and 1), middle mixing
Good additive is uniformly mixed to obtain dry-mixed mortar；
3), at the construction field (site), by 2), uniformly mixed dry-mixed mortar suitable quantity of water is added, make consistency in 80-100mm ranges,
Can be obtained prevents the gypsum base of the accumulation of salt in the surface soil from pouring mortar material.
Embodiment 2
A kind of gypsum base preventing the accumulation of salt in the surface soil pours mortar material, is prepared by the raw material of following parts by weight：Gypsum 70kg,
Flyash 29kg, light mineral 2kg, water-retaining agent 0.1kg press down alkaline agent 0.03kg, retarder 0.03kg.
The gypsum is desulfurated plaster, ardealite mixes.
The flyash is the byproduct after coal-fired plant's coal burning, is collected from coal-fired plant's coal-powder boiler flue gas
Powder, it is desirable that the above flyash of three-level, natural deposited dry density should be not more than 0.8g/cm3, grain size 0.3-1.5mm, closed pore
Shape particle.
The light mineral is expanded perlite.
The water-retaining agent is water preservation, is ethoxy cation cellulose ether, hydroxypropyl cationic cellulose
Ether, hydroxypropyl cationic starch ether, cationic starch ether, bamboo charcoal powder are according to mass ratio 4:2.3:2.3:0.7:0.5 mixes,
Wherein the viscosity (1%, 20 DEG C, Brookfield-LVT) of cellulose ether is 6000~12000mPa.s
The bamboo charcoal powder, is 25h in the environment of the sealing of fresh bamboo is deposited in 45 DEG C, and low temperature drying burns, waits for bamboo
Sub- after-flame completely cuts off air 2.3h, is positioned in 3 DEG C of environment, crushes and both obtained.
The suppression alkaline agent consists of the following compositions, active silica, antifoaming agent, cellulose ether, ferrous sulfate, naphthalene sulfonic acids
Formaldehyde condensation products sodium salt, mixed rosin, ethylenediamine tetra-acetic acid are according to mass ratio 2.2:2.2:2.2:1.3:1.3:0.7:0.8 mixing
It forms.
The mixed rosin is by rosin：Cactus：Tea Saponin is according to mass ratio 6:0.8:0.25 mixes.
The mixed rosin, including following preparation process：
1) cactus removal surface thorn, liquid nitrogen flash freezer crush, and 1,50 DEG C of stirrings of solution of 6 times of quality are added, filter, filter
Liquid concentrates, spare；
2) concentrate that step 1) obtains is mixed, heating stirring 1.2h with rosin, freezes 25min, in heating stirring, be added
Tea Saponin mixes.
The solution 1, be by mass fraction be 7% sodium bicarbonate, 2% glycerine, 4% sodium chloride mixing and
At.
The retarder is by sodium tripolyphosphate, amido polyoxy methyl calcium salt, silicate according to mass ratio 3:2:1 mixing
It forms.
Described prevents the gypsum base of the accumulation of salt in the surface soil from pouring mortar material, including following preparation process：
1), first by water-retaining agent, suppression alkaline agent, component weighs according to the ratio for retarder etc., be uniformly mixed and mixed
Additive；
2), by metering device, accurately in mass ratio by dry gypsum, aglite, flyash etc. and 1), middle mixing
Good additive is uniformly mixed to obtain dry-mixed mortar；
3), at the construction field (site), by 2), uniformly mixed dry-mixed mortar suitable quantity of water is added, make consistency in 80-100mm ranges,
Can be obtained prevents the gypsum base of the accumulation of salt in the surface soil from pouring mortar material.
Embodiment 3
A kind of gypsum base preventing the accumulation of salt in the surface soil pours mortar material, is prepared by the raw material of following parts by weight：Gypsum 70kg,
Flyash 30kg, light mineral 3kg, water-retaining agent 0.2kg press down alkaline agent 0.05kg, retarder 0.05kg.
The gypsum is desulfurated plaster.
The flyash is the byproduct after coal-fired plant's coal burning, is collected from coal-fired plant's coal-powder boiler flue gas
Powder, it is desirable that the above flyash of three-level, natural deposited dry density should be not more than 0.8g/cm3, grain size 0.3-1.5mm, closed pore
Shape particle.
The light mineral is glass bead.
The water-retaining agent is water preservation, is ethoxy cation cellulose ether, hydroxypropyl cationic cellulose
Ether, hydroxypropyl cationic starch ether, cationic starch ether, bamboo charcoal powder are according to mass ratio 5:3:3:1.2:0.8:0.5 mixes,
Wherein the viscosity (1%, 20 DEG C, Brookfield-LVT) of cellulose ether is 6000~12000mPa.s
The bamboo charcoal powder, is 30h in the environment of the sealing of fresh bamboo is deposited in 50 DEG C, and low temperature drying burns, waits for bamboo
Sub- after-flame completely cuts off air 3h, is positioned in 5 DEG C of environment, crushes and both obtained.
The suppression alkaline agent consists of the following compositions, active silica, antifoaming agent, cellulose ether, ferrous sulfate, naphthalene sulfonic acids
Formaldehyde condensation products sodium salt, mixed rosin, ethylenediamine tetra-acetic acid are according to mass ratio 2.5:2.5:2.5:1.5:1.5:1:1 mixing and
At.
The mixed rosin is by rosin：Cactus：Tea Saponin is according to mass ratio 7:1:0.3 mixes.
The mixed rosin, including following preparation process：
1) cactus removal surface thorn, liquid nitrogen flash freezer crush, and 1,60 DEG C of stirrings of solution of 7 times of quality are added, filter, filter
Liquid concentrates, spare；
2) concentrate that step 1) obtains is mixed, heating stirring 2h with rosin, freezes 30min, in heating stirring, tea is added
Saponin mixes.
The solution 1, be by mass fraction be 8% sodium bicarbonate, 3% glycerine, 5% sodium chloride mixing and
At.
The retarder is by sodium tripolyphosphate, amido polyoxy methyl calcium salt, silicate according to mass ratio 3:2:1 mixing
It forms.
Described prevents the gypsum base of the accumulation of salt in the surface soil from pouring mortar material, including following preparation process：
1), first by water-retaining agent, suppression alkaline agent, component weighs according to the ratio for retarder etc., be uniformly mixed and mixed
Additive；
2), by metering device, accurately in mass ratio by dry gypsum, aglite, flyash etc. and 1), middle mixing
Good additive is uniformly mixed to obtain dry-mixed mortar；
3), at the construction field (site), by 2), uniformly mixed dry-mixed mortar suitable quantity of water is added, make consistency in 80-100mm ranges,
Can be obtained prevents the gypsum base of the accumulation of salt in the surface soil from pouring mortar material.
Embodiment 4
Difference lies in the water preservations that embodiment 4 uses, wherein the bamboo charcoal being added with embodiment 3 for embodiment 4
Powder is obtained after bamboo burns, and other preparation processes are all identical.
Embodiment 5
Difference lies in the water preservations that embodiment 5 uses, without the bamboo of addition with embodiment 3 for embodiment 5
Powdered carbon, other preparation methods are all identical.
Embodiment 6
Difference lies in the compound water retaining agent that embodiment 6 uses is ethoxy cationic fiber to embodiment 6 with embodiment 3
Plain ether, hydroxypropyl cationic cellulose ether, hydroxypropyl cationic starch ether, cationic starch ether, bamboo charcoal powder according to etc. quality it is mixed
It closes, other preparation methods are all identical.
Embodiment 7
Difference lies in the suppression alkaline agent described in embodiment 7 consists of the following compositions embodiment 7, active oxidation with embodiment 3
Silicon, antifoaming agent, cellulose ether, ferrous sulfate, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, mixed rosin, ethylenediamine tetra-acetic acid according to etc.
Mass mixing forms, and other preparation methods are all identical.
Embodiment 8
Embodiment 8 and embodiment 3 go that difference lies in the suppression alkaline agents described in embodiment 7, wherein the rosin being added is non-mixed
Rosin, other preparation methods are all identical.
Experimental example
1, prevent the gypsum base of the accumulation of salt in the surface soil from pouring mortar material performance test
Prevent the gypsum base of the accumulation of salt in the surface soil from pouring mortar material according to the method preparation of embodiment 1-8, each embodiment is divided into 3
Group is respectively placed under three kinds of environment and conserves, the first is field curing, southern exposure, ventilation, the windowsill that can be drenched with rain；Second is room
Interior maintenance；The third is conserved for immersion condition, and sample lower half is soaked in water；It conserves 30 days and is observed in the case of three kinds respectively
Accumulation of salt in the surface soil situation.
Table 2 prevents the gypsum base of the accumulation of salt in the surface soil from pouring mortar material accumulation of salt in the surface soil situation
| Field curing | Indoor maintenance | Curing in water | |
| Embodiment 1 | The not accumulation of salt in the surface soil | The not accumulation of salt in the surface soil | The not accumulation of salt in the surface soil |
| Embodiment 2 | The not accumulation of salt in the surface soil | The not accumulation of salt in the surface soil | The not accumulation of salt in the surface soil |
| Embodiment 3 | The not accumulation of salt in the surface soil | The not accumulation of salt in the surface soil | The not accumulation of salt in the surface soil |
| Embodiment 4 | The slight accumulation of salt in the surface soil | The not accumulation of salt in the surface soil | The accumulation of salt in the surface soil is serious |
| Embodiment 5 | The slight accumulation of salt in the surface soil | The slight accumulation of salt in the surface soil | The accumulation of salt in the surface soil is serious |
| Embodiment 6 | The not accumulation of salt in the surface soil | The not accumulation of salt in the surface soil | The accumulation of salt in the surface soil is serious |
| Embodiment 7 | The not accumulation of salt in the surface soil | The not accumulation of salt in the surface soil | The slight accumulation of salt in the surface soil |
| Embodiment 8 | The slight accumulation of salt in the surface soil | The slight accumulation of salt in the surface soil | The slight accumulation of salt in the surface soil |
Continue to observe after spending 30 days, gypsum prepared by discovery embodiment 1-3 is in 90 days successors of field curing so without the accumulation of salt in the surface soil.
Table 3 prevents the gypsum base of the accumulation of salt in the surface soil from pouring mortar material
| Resistance to compression MPa | Anti- folding MPa | |
| Embodiment 1 | 16.46 | 5.76 |
| Embodiment 2 | 16.96 | 5.35 |
| Embodiment 3 | 16.31 | 5.45 |
| Embodiment 4 | 13.36 | 4.02 |
| Embodiment 5 | 10.65 | 3.83 |
| Embodiment 6 | 11.28 | 3.58 |
| Embodiment 7 | 13.64 | 3.84 |
| Embodiment 8 | 12.56 | 3.65 |
The present invention is improved by the water-retaining agent and suppression alkaline agent added in gypsum, and microcrystalline cellulose joins with water-retaining agent is mixed
It closes and uses, there is synergistic effect, reduce dosage, reduce cost, using mixing water-retaining agent and suppression alkaline agent, can not only inhibit gypsum
The accumulation of salt in the surface soil also adds the intensity of gypsum.In addition the gypsum that the present invention obtains, has：
1, Lightness --- the weight of every square metre of partition wall of cast-in-situs gypsum wallboard is 65~105 kg, with common internal partition wall
Thickness 100mm meter, weighs about 90 kilograms, lighter by 64% than the clay brick wall of equivalent efficacy, than condition of equivalent thickness air entrained concrete brick and
Flyash brick gently about 40%, can save significantly on building bearing structure and foundation cost.
2, non-combustible also not combustion-supporting when fire protection flame retarding --- building materials of gypsum meets fire, the intrinsic crystallization water is released when meeting fire
It puts, absorbs amount of heat, before the crystallization water discharges completely, the temperature of building materials of gypsum is difficult to more than 100 DEG C, moreover, the crystallization water
Release be buffering course, therefore be a kind of good fire-proof shield.
3, suppression alkalinity --- can include by the main component for pouring the surface of wall accumulation of salt in the surface soil Ca (OH) 2, CaSO4.2H2O,
CaCl2.nH2O etc. reduces 70% or more.
4, the physical and chemical performance of metope perfection --- gypsum is stablized, and when extraneous temperature and humidity changes, gypsum is certainly
The dilation very little of body shows according to the experiment for gypsum internal partition wall body, can be in the air swollen within 9 meters of diaphragm wall body length
Therefore swollen compensating port is not in crack phenomenon with the wall that gypsum material is built up.
5, high human comfort --- it can effectively dehumidify and smell, purify the air of a room.Plastering is non-volatile, radiationless,
The disadvantages such as will not damage by worms, and obvious action is played to improving the comfort level lived.
6, autonomous respiration --- gypsum integral wall has autonomous breathing, and excess humidity can absorb quickly in room；
Moisture can be released again when climate change humidity reduces, without influencing wall firmness；Namely with atmospheric moisture in regulation room
Kryptoclimate is adjusted in the certain function of degree.Also evaporated condensation water, inhabitation are very comfortable when air humidity is higher for metope.
Claims (10)
1. a kind of gypsum base preventing the accumulation of salt in the surface soil pours mortar material, which is characterized in that be prepared by the raw material of following parts by weight：
70 parts of gypsum, 28-30 parts of flyash, 1-3 parts of light mineral, 0.05-0.2 parts of water-retaining agent press down 0.01-0.05 parts of alkaline agent, slow setting
0.01-0.05 parts of agent.
2. preventing the gypsum base of the accumulation of salt in the surface soil from pouring mortar material as described in claim 1, which is characterized in that the gypsum is de-
One or more of sulphur gypsum, ardealite, fluorgypsum, natural gypsum.
3. preventing the gypsum base of the accumulation of salt in the surface soil from pouring mortar material as described in claim 1, which is characterized in that the light mineral
For one or more of expanded perlite, glass bead, haydite.
4. preventing the gypsum base of the accumulation of salt in the surface soil from pouring mortar material as described in claim 1, which is characterized in that the water-retaining agent is
Water preservation, is ethoxy cation cellulose ether, hydroxypropyl cationic cellulose ether, hydroxypropyl cationic starch ether,
Cationic starch ether, bamboo charcoal powder are according to mass ratio 3-5:2-3:2-3:0.5-1.2:0.3-0.8 is mixed.
5. preventing the gypsum base of the accumulation of salt in the surface soil from pouring mortar material as claimed in claim 4, which is characterized in that the bamboo charcoal powder,
It is 20-30h in the environment of the sealing of fresh bamboo is deposited in 40-50 DEG C, low temperature drying burns, and waits for bamboo after-flame, completely cuts off air
2-3h is positioned in 0-5 DEG C of environment, is crushed and was both obtained.
6. preventing the gypsum base of the accumulation of salt in the surface soil from pouring mortar material as claimed in claim 5, which is characterized in that the suppression alkaline agent by
Following component forms, active silica, antifoaming agent, cellulose ether, ferrous sulfate, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, mixing pine
Fragrant, ethylenediamine tetra-acetic acid is according to mass ratio 2-2.5:2-2.5:2-2.5:1-1.5:1-1.5:0.5-1:0.5-1 is mixed.
7. preventing the gypsum base of the accumulation of salt in the surface soil from pouring mortar material as claimed in claim 6, which is characterized in that the mixing pine
Perfume (or spice) is by rosin：Cactus：Tea Saponin is according to mass ratio 5-7:0.5-1:0.2-0.3 is mixed.
8. preventing the gypsum base of the accumulation of salt in the surface soil from pouring mortar material as claimed in claim 7, which is characterized in that the mixing pine
Perfume (or spice), including following preparation process：
1) cactus removal surface thorn, liquid nitrogen flash freezer crush, and 0-60 DEG C of stirring of solution Isosorbide-5-Nitrae of 5-7 times of quality is added, filters, filter
Liquid concentrates, spare；
2) concentrate that step 1) obtains is mixed, heating stirring 1-2h with rosin, freezes 20-30min, in heating stirring, be added
Tea Saponin mixes.
9. preventing the gypsum base of the accumulation of salt in the surface soil from pouring mortar material as claimed in claim 8, which is characterized in that the solution 1 is
By the glycerine of sodium bicarbonate, 1-3% that mass fraction is 5-8%, the sodium chloride of 2-5% mixes.
10. preventing the gypsum base of the accumulation of salt in the surface soil from pouring mortar material as described in claim 1, which is characterized in that the retarder
It is by sodium tripolyphosphate, amido polyoxy methyl calcium salt, silicate according to mass ratio 3:2:1 mixes.
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| CN112649322A (en) * | 2020-12-30 | 2021-04-13 | 宜兴摩根热陶瓷有限公司 | Test method for testing alkali return resistance of castable |
| CN113582630A (en) * | 2021-09-07 | 2021-11-02 | 河北金铎建设工程有限公司 | Thermal insulation wall body decorative layer dry material, mortar and wall body |
| WO2024044105A1 (en) * | 2022-08-25 | 2024-02-29 | United States Gypsum Company | Light-weight fast-dry self-leveling cementitious gypsum underlayment with particle fillers |
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