CN109133823B - Building external wall thermal insulation mortar with good rheological property - Google Patents
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- CN109133823B CN109133823B CN201811252031.0A CN201811252031A CN109133823B CN 109133823 B CN109133823 B CN 109133823B CN 201811252031 A CN201811252031 A CN 201811252031A CN 109133823 B CN109133823 B CN 109133823B
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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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
- C04B28/12—Hydraulic lime
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/04—Heat treatment
- C04B20/06—Expanding clay, perlite, vermiculite or like granular materials
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/006—Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof
- C08B37/0084—Guluromannuronans, e.g. alginic acid, i.e. D-mannuronic acid and D-guluronic acid units linked with alternating alpha- and beta-1,4-glycosidic bonds; Derivatives thereof, e.g. alginates
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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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Abstract
The building external wall thermal insulation mortar with good rheological property comprises the following components in parts by weight: 200 parts of cement-containing material 240 parts, 10-15 parts of superfine phosphorus slag powder, 5-10 parts of quick lime, 100 parts of sand-containing material 120 parts, 50-120 parts of modified expanded lightweight aggregate, 20-25 parts of rheological agent, 5-10 parts of hydroxypropyl cellulose, 2-6 parts of polycarboxylic acid high-performance water reducing agent and 70-90 parts of water.
Description
Technical Field
The invention relates to building external wall thermal insulation mortar with good rheological property, and belongs to the technical field of external wall thermal insulation mortar.
Background
The external wall external heat insulation system is the most widely applied energy-saving technical measure in the energy conservation of building walls in China at present, is widely popularized in the whole country, and makes great contribution to the energy conservation of buildings. At present, the building thermal insulation system taking the glue powder polyphenyl particle thermal insulation mortar as the thermal insulation layer in the market occupies a considerable proportion in industrial and civil buildings. However, the external thermal insulation mortar sold in the current market has the defect of unstable thermal insulation performance of products due to uneven distribution of light materials. Therefore, the external wall thermal insulation mortar with the advantages of improving the product performance, reducing the product cost and the like is urgently needed in the market.
Disclosure of Invention
In order to improve the rheological property and the heat preservation performance of the prior external wall heat preservation mortar, the invention provides the building external wall heat preservation mortar with good rheological property and the manufacturing method thereof,
a building exterior wall thermal insulation mortar with good rheological property and a manufacturing method thereof,
the building exterior wall thermal insulation mortar with good rheological property comprises the following components in parts by weight: 240 parts of cement sand-containing material 200, 10-15 parts of superfine phosphorus slag powder, 5-10 parts of quick lime, 120 parts of sand-containing material 100, 50-120 parts of modified expanded lightweight aggregate, 20-25 parts of rheological agent, 5-10 parts of hydroxypropyl cellulose, 2-6 parts of polycarboxylic acid high-performance water reducing agent and 70-90 parts of water,
the manufacturing method of the building exterior wall thermal insulation mortar with good rheological property comprises the following steps: firstly, preparing a rheological agent: heating 100ml of methyl methacrylate to 46-50 ℃, stirring and adding 10-15g of triisopropanolamine, heating to 60-70 ℃, adding 5-6g of sodium xylene sulfonate and 6-8g of sodium alginate into the reaction kettle, stirring and reacting at a rotation speed of 200-;
modified expanded lightweight aggregate: pitchstone and obsidian according to a mass ratio of 1: 0.2 to 0.5, placing the mixture into a crusher for crushing, and heating the crushed powder to 400-500 ℃. Keeping the temperature for 0.5-1 hour, raising the temperature to 1220-: 5-10 parts of naphthalene sulfonate formaldehyde condensate, 2-5 parts of silica sol, 1-2 parts of acetic acid and 30-50 parts of ethanol,
weighing cement, superfine phosphorus slag powder, quicklime, sand, modified expanded lightweight aggregate, a rheological agent, hydroxypropyl cellulose, a polycarboxylic acid high-performance water reducing agent and water according to the proportion, firstly adding the cement, the quicklime, the sand and the modified expanded lightweight aggregate into a stirrer, stirring for 5-10min, then adding the superfine phosphorus slag powder and the hydroxypropyl cellulose, and stirring for 2-3 min; and finally, sequentially adding the rheological agent, water and the polycarboxylic acid high-performance water reducing agent, stirring for 5-7 minutes, and standing for 3-5 minutes to obtain the building exterior wall thermal insulation mortar with good rheological property.
Preferably, the building external wall thermal insulation mortar with good rheological property comprises the following components: 220 parts of cement, 13 parts of superfine phosphorus slag powder, 6 parts of quick lime, 100 parts of sand, 70 parts of modified expanded lightweight aggregate, 20 parts of rheological agent, 7 parts of hydroxypropyl cellulose, 4 parts of polycarboxylic high-performance water reducing agent and 85 parts of water.
Preferably, the building external wall thermal insulation mortar with good rheological property and the manufacturing method thereof are characterized in that 120ml of methyl methacrylate is heated to 50 ℃.
Preferably, the building exterior wall thermal insulation mortar with good rheological property and the manufacturing method thereof are characterized in that 15g of triisopropanolamine is stirred and added, and the heating temperature is raised to 60 ℃.
Preferably, 6g of sodium xylene sulfonate and 7g of sodium alginate are added into the building exterior wall thermal insulation mortar with good rheological property and the manufacturing method thereof.
Preferably, the building external wall thermal insulation mortar with good rheological property and the manufacturing method thereof are characterized in that a magnetic stirrer is used for stirring reaction at the rotating speed of 200 r/min.
Preferably, the rotating speed of the magnetic stirrer is adjusted to 360 r/min.
Preferably, the building external wall thermal insulation mortar with good rheological property and the manufacturing method thereof have the centrifugal treatment time of 30 minutes.
Preferably, the building external wall thermal insulation mortar with good rheological property and the manufacturing method thereof are characterized in that the mass ratio of pitchstone to obsidian is 1: 0.3.
preferably, the building external wall thermal insulation mortar with good rheological property and the manufacturing method thereof, wherein the crushed powder is heated to 450 ℃. The temperature was maintained for 1 hour.
The invention uses the modified ball milling agent to ball mill the lightweight aggregate and modify the surface of the lightweight aggregate, so that the particle size of the lightweight aggregate is more uniform, the surface wettability of the aggregate is more uniform, the aggregate is more uniformly distributed in the slurry, the rheological agent improves the rheological property and stability of the mortar, the distributivity of the modified lightweight aggregate in the mortar can be improved, the layering or sedimentation of the modified lightweight aggregate is prevented, and the heat insulation performance of the mortar is improved. The mortar has the advantages of suspension, sedimentation resistance and sagging resistance, is easier to operate in the construction process, reduces unnecessary waste in coating, and reduces cost.
Detailed Description
Test performance results of thermal mortar
Example 1
A building exterior wall thermal insulation mortar with good rheological property and a manufacturing method thereof,
the building exterior wall thermal insulation mortar with good rheological property comprises the following components in parts by weight: 210 parts of cement, 12 parts of superfine phosphorus slag powder, 5 parts of quicklime, 100 parts of sand, 70 parts of modified expanded lightweight aggregate, 20 parts of rheological agent, 7 parts of hydroxypropyl cellulose, 2 parts of polycarboxylic high-performance water reducing agent and 90 parts of water,
the manufacturing method of the building exterior wall thermal insulation mortar with good rheological property comprises the following steps: firstly, preparing a rheological agent: heating 150ml of methyl methacrylate to 46-50 ℃, stirring and adding 12g of triisopropanolamine, heating and raising the temperature to 60-70 ℃, adding 5g of sodium xylene sulfonate and 6g of sodium alginate into a reaction kettle, stirring and reacting at a rotating speed of 230r/min by using a magnetic stirrer, then adjusting the rotating speed of the magnetic stirrer to 380r/min, adding 40ml of ethyl acetate, continuously stirring for 10-15 minutes after the addition is finished to obtain a suspension, centrifuging the obtained suspension by using a high-speed centrifuge for 30 minutes, and collecting lower-layer emulsion to obtain a rheological agent;
modified expanded lightweight aggregate: pitchstone and obsidian according to a mass ratio of 1: 0.3, uniformly mixing, putting into a crusher for crushing, and heating the crushed powder to 450 ℃. Keeping the temperature for 1 hour, raising the temperature to 1230 ℃ for puffing treatment, wherein the puffing time is 1 minute, so as to obtain puffed lightweight aggregate, mixing the puffed lightweight aggregate with a modified ball milling agent, putting the mixture into a ball mill for ball milling, wherein the ball milling time is 50 minutes, the ball milling speed is 400r/min, and drying the mixture after ball milling, so as to obtain the modified puffed lightweight aggregate, wherein the modified ball milling agent comprises the following components in parts by weight: 9 parts of naphthalene sulfonate formaldehyde condensate, 5 parts of silica sol, 2 parts of acetic acid and 45 parts of ethanol,
weighing cement, superfine phosphorus slag powder, quicklime, sand, modified expanded lightweight aggregate, a rheological agent, hydroxypropyl cellulose, a polycarboxylic acid high-performance water reducing agent and water according to the proportion, firstly adding the cement, the quicklime, the sand and the modified expanded lightweight aggregate into a stirrer, stirring for 10min, then adding the superfine phosphorus slag powder and the hydroxypropyl cellulose, and stirring for 3 min; and finally, sequentially adding the rheological agent, water and the polycarboxylic acid high-performance water reducing agent, stirring for 5 minutes, and standing for 3 minutes to obtain the building exterior wall thermal insulation mortar with good rheological property.
Example 2
A building exterior wall thermal insulation mortar with good rheological property and a manufacturing method thereof,
the building exterior wall thermal insulation mortar with good rheological property comprises the following components in parts by weight: 200 parts of cement, 14 parts of superfine phosphorus slag powder, 9 parts of quicklime, 120 parts of sand, 110 parts of modified expanded lightweight aggregate, 24 parts of rheological agent, 6 parts of hydroxypropyl cellulose, 5 parts of polycarboxylic high-performance water reducing agent and 90 parts of water,
the manufacturing method of the building exterior wall thermal insulation mortar with good rheological property comprises the following steps: firstly, preparing a rheological agent: heating 100ml of methyl methacrylate to 46-50 ℃, stirring and adding 11g of triisopropanolamine, heating and raising the temperature to 60-70 ℃, adding 6g of sodium xylene sulfonate and 6g of sodium alginate into a reaction kettle, stirring and reacting at a rotating speed of 210r/min by using a magnetic stirrer, then adjusting the rotating speed of the magnetic stirrer to 350r/min, adding 35ml of ethyl acetate, continuously stirring for 15 minutes after the addition is finished to obtain a suspension, centrifuging the obtained suspension by using a high-speed centrifuge for 40 minutes, and collecting lower-layer emulsion to obtain a rheological agent;
modified expanded lightweight aggregate: pitchstone and obsidian according to a mass ratio of 1: 0.45, putting the mixture into a crusher for crushing, and heating the crushed powder to 470 ℃. Keeping the temperature for 0.5 hour, raising the temperature to 1230 ℃ for expansion treatment, wherein the expansion time is 1-3 minutes, so as to obtain expanded lightweight aggregate, mixing the expanded lightweight aggregate with a modified ball milling agent, putting the mixture into a ball mill for ball milling, wherein the ball milling time is 40 minutes, the ball milling speed is 300-400r/min, and drying the mixture after ball milling, so as to obtain the modified expanded lightweight aggregate, wherein the modified ball milling agent comprises the following components in parts by weight: 8 parts of naphthalene sulfonate formaldehyde condensate, 3 parts of silica sol, 2 parts of acetic acid and 35 parts of ethanol,
weighing cement, superfine phosphorus slag powder, quicklime, sand, modified expanded lightweight aggregate, a rheological agent, hydroxypropyl cellulose, a polycarboxylic acid high-performance water reducing agent and water according to the proportion, firstly adding the cement, the quicklime, the sand and the modified expanded lightweight aggregate into a stirrer, stirring for 8min, then adding the superfine phosphorus slag powder and the hydroxypropyl cellulose, and stirring for 2 min; and finally, sequentially adding the rheological agent, water and the polycarboxylic acid high-performance water reducing agent, stirring for 5-7 minutes, and standing for 5 minutes to obtain the building exterior wall thermal insulation mortar with good rheological property.
Example 3
A building exterior wall thermal insulation mortar with good rheological property and a manufacturing method thereof,
the building exterior wall thermal insulation mortar with good rheological property comprises the following components in parts by weight: 220 parts of cement, 14 parts of superfine phosphorus slag powder, 10 parts of quick lime, 120 parts of sand, 90 parts of modified expanded lightweight aggregate, 22 parts of rheological agent, 7 parts of hydroxypropyl cellulose, 5 parts of polycarboxylic high-performance water reducing agent and 75 parts of water,
the manufacturing method of the building exterior wall thermal insulation mortar with good rheological property comprises the following steps: firstly, preparing a rheological agent: heating 130ml of methyl methacrylate to 48 ℃, stirring and adding 10g of triisopropanolamine, heating and raising the temperature to 62 ℃, adding 5g of sodium xylene sulfonate and 7g of sodium alginate into a reaction kettle, stirring and reacting by using a magnetic stirrer at a rotating speed of 240r/min, then adjusting the rotating speed of the magnetic stirrer to 360r/min, adding 25ml of ethyl acetate, continuously stirring for 10 minutes after the addition is finished to obtain a suspension, centrifuging the obtained suspension by using a high-speed centrifuge for 30 minutes, and collecting lower-layer emulsion to obtain a rheological agent;
modified expanded lightweight aggregate: pitchstone and obsidian according to a mass ratio of 1: 0.25, uniformly mixing, putting into a crusher for crushing, and heating the crushed powder to 490 ℃. Keeping the temperature for 1 hour, raising the temperature to 1225 ℃ for puffing for 1-3 minutes to obtain puffed lightweight aggregate, mixing the puffed lightweight aggregate with a modified ball milling agent, putting the mixture into a ball mill for ball milling for 50 minutes at a ball milling speed of 340r/min, and drying the mixture after ball milling to obtain the modified puffed lightweight aggregate, wherein the modified ball milling agent comprises the following components in parts by weight: 6 parts of naphthalene sulfonate formaldehyde condensate, 3 parts of silica sol, 2 parts of acetic acid and 36 parts of ethanol,
weighing cement, superfine phosphorus slag powder, quicklime, sand, modified expanded lightweight aggregate, a rheological agent, hydroxypropyl cellulose, a polycarboxylic acid high-performance water reducing agent and water according to the proportion, firstly adding the cement, the quicklime, the sand and the modified expanded lightweight aggregate into a stirrer, stirring for 6min, then adding the superfine phosphorus slag powder and the hydroxypropyl cellulose, and stirring for 3 min; and finally, sequentially adding the rheological agent, water and the polycarboxylic acid high-performance water reducing agent, stirring for 6 minutes, and standing for 4 minutes to obtain the building exterior wall thermal insulation mortar with good rheological property.
Example 4
A building exterior wall thermal insulation mortar with good rheological property and a manufacturing method thereof,
the building exterior wall thermal insulation mortar with good rheological property comprises the following components in parts by weight: 230 parts of cement, 11 parts of superfine phosphorus slag powder, 9 parts of quicklime, 115 parts of sand, 80 parts of modified expanded lightweight aggregate, 23 parts of rheological agent, 9 parts of hydroxypropyl cellulose, 5 parts of polycarboxylic high-performance water reducing agent and 80 parts of water,
the manufacturing method of the building exterior wall thermal insulation mortar with good rheological property comprises the following steps: firstly, preparing a rheological agent: heating 140ml of methyl methacrylate to 46 ℃, stirring and adding 14g of triisopropanolamine, heating and raising the temperature to 62 ℃, adding 6g of sodium xylene sulfonate and 7g of sodium alginate into a reaction kettle, stirring and reacting by using a magnetic stirrer at a rotating speed of 210r/min, then adjusting the rotating speed of the magnetic stirrer to 350r/min, adding 36ml of ethyl acetate, continuously stirring for 10 minutes after the addition is finished to obtain a suspension, centrifuging the obtained suspension by using a high-speed centrifuge for 20 minutes, and collecting lower-layer emulsion to obtain a rheological agent;
modified expanded lightweight aggregate: pitchstone and obsidian according to a mass ratio of 1: 0.45, putting the mixture into a crusher for crushing, and heating the crushed powder to 470 ℃. Keeping the temperature for 0.5-1 hour, raising the temperature to 1230 ℃ for puffing for 1 minute to obtain puffed lightweight aggregate, mixing the puffed lightweight aggregate with a modified ball milling agent, putting the mixture into a ball mill for ball milling for 40 minutes at a ball milling speed of 320r/min, and drying the mixture after ball milling to obtain the modified puffed lightweight aggregate, wherein the modified ball milling agent comprises the following components in parts by weight: 5 parts of naphthalene sulfonate formaldehyde condensate, 4 parts of silica sol, 1 part of acetic acid and 48 parts of ethanol,
weighing cement, superfine phosphorus slag powder, quicklime, sand, modified expanded lightweight aggregate, a rheological agent, hydroxypropyl cellulose, a polycarboxylic acid high-performance water reducing agent and water according to the proportion, firstly adding the cement, the quicklime, the sand and the modified expanded lightweight aggregate into a stirrer, stirring for 6min, then adding the superfine phosphorus slag powder and the hydroxypropyl cellulose, and stirring for 3 min; and finally, sequentially adding the rheological agent, water and the polycarboxylic acid high-performance water reducing agent, stirring for 6 minutes, and standing for 4 minutes to obtain the building exterior wall thermal insulation mortar with good rheological property.
Example 5
A building exterior wall thermal insulation mortar with good rheological property and a manufacturing method thereof,
the building exterior wall thermal insulation mortar with good rheological property comprises the following components in parts by weight: 240 parts of cement, 15 parts of superfine phosphorus slag powder, 9 parts of quicklime, 120 parts of sand, 70 parts of modified expanded lightweight aggregate, 20 parts of rheological agent, 6 parts of hydroxypropyl cellulose, 2 parts of polycarboxylic high-performance water reducing agent and 70 parts of water,
the manufacturing method of the building exterior wall thermal insulation mortar with good rheological property comprises the following steps: firstly, preparing a rheological agent: heating 100ml of methyl methacrylate to 50 ℃, stirring and adding 10g of triisopropanolamine, heating to 60-70 ℃, adding 6g of sodium xylene sulfonate and 8g of sodium alginate into a reaction kettle, stirring and reacting at a rotation speed of 200r/min by using a magnetic stirrer, then adjusting the rotation speed of the magnetic stirrer to 400r/min, adding 40ml of ethyl acetate, continuously stirring for 10-15 minutes after the addition is finished to obtain a suspension, centrifuging the obtained suspension by using a high-speed centrifuge for 40 minutes, and collecting lower-layer emulsion to obtain a rheological agent;
modified expanded lightweight aggregate: pitchstone and obsidian according to a mass ratio of 1: 0.5, uniformly mixing, putting into a crusher for crushing, and heating the crushed powder to 420 ℃. Keeping the temperature for 1 hour, raising the temperature to 1220 ℃ for puffing treatment, wherein the puffing time is 2 minutes, so as to obtain puffed lightweight aggregate, mixing the puffed lightweight aggregate with a modified ball milling agent, putting the mixture into a ball mill for ball milling, wherein the ball milling time is 50 minutes, the ball milling speed is 400r/min, and drying the mixture after ball milling, so as to obtain the modified puffed lightweight aggregate, wherein the modified ball milling agent comprises the following components in parts by weight: 7 parts of naphthalene sulfonate formaldehyde condensate, 3 parts of silica sol, 1 part of acetic acid and 38 parts of ethanol,
weighing cement, superfine phosphorus slag powder, quicklime, sand, modified expanded lightweight aggregate, a rheological agent, hydroxypropyl cellulose, a polycarboxylic acid high-performance water reducing agent and water according to the proportion, firstly adding the cement, the quicklime, the sand and the modified expanded lightweight aggregate into a stirrer, stirring for 9min, then adding the superfine phosphorus slag powder and the hydroxypropyl cellulose, and stirring for 3 min; and finally, sequentially adding the rheological agent, water and the polycarboxylic acid high-performance water reducing agent, stirring for 7 minutes, and standing for 5 minutes to obtain the building exterior wall thermal insulation mortar with good rheological property.
Claims (8)
1. A building external wall thermal insulation mortar with good rheological property,
the building exterior wall thermal insulation mortar with good rheological property comprises the following components in parts by weight: 240 parts of cement sand-containing material 200, 10-15 parts of superfine phosphorus slag powder, 5-10 parts of quick lime, 120 parts of sand-containing material 100, 50-120 parts of modified expanded lightweight aggregate, 20-25 parts of rheological agent, 5-10 parts of hydroxypropyl cellulose, 2-6 parts of polycarboxylic acid high-performance water reducing agent and 70-90 parts of water,
the manufacturing method of the building exterior wall thermal insulation mortar with good rheological property comprises the following steps: firstly, preparing a rheological agent: heating 120ml of methyl methacrylate to 50 ℃, stirring and adding 15g of triisopropanolamine, heating to 60 ℃, adding 5-6g of sodium xylene sulfonate and 6-8g of sodium alginate into the reaction kettle, stirring and reacting at the rotation speed of 200-240r/min by using a magnetic stirrer, then adjusting the rotation speed of the magnetic stirrer to 350-400r/min, adding 20-40ml of ethyl acetate, continuously stirring for 10-15 minutes after the addition is finished to obtain a suspension, centrifuging the obtained suspension by using a high-speed centrifuge for 20-40 minutes, and collecting the lower-layer emulsion to obtain a rheological agent;
modified expanded lightweight aggregate: pitchstone and obsidian according to a mass ratio of 1: 0.2-0.5, uniformly mixing, putting into a crusher for crushing, heating the crushed powder to 400-: 5-10 parts of naphthalene sulfonate formaldehyde condensate, 2-5 parts of silica sol, 1-2 parts of acetic acid and 30-50 parts of ethanol,
weighing cement, superfine phosphorus slag powder, quicklime, sand, modified expanded lightweight aggregate, a rheological agent, hydroxypropyl cellulose, a polycarboxylic acid high-performance water reducing agent and water according to the proportion, firstly adding the cement, the quicklime, the sand and the modified expanded lightweight aggregate into a stirrer, stirring for 5-10min, then adding the superfine phosphorus slag powder and the hydroxypropyl cellulose, and stirring for 2-3 min; and finally, sequentially adding the rheological agent, water and the polycarboxylic acid high-performance water reducing agent, stirring for 5-7 minutes, and standing for 3-5 minutes to obtain the building exterior wall thermal insulation mortar with good rheological property.
2. The building exterior wall thermal insulation mortar with good rheological property according to claim 1, which comprises the following components in percentage by weight: 220 parts of cement, 13 parts of superfine phosphorus slag powder, 6 parts of quick lime, 100 parts of sand, 70 parts of modified expanded lightweight aggregate, 20 parts of rheological agent, 7 parts of hydroxypropyl cellulose, 4 parts of polycarboxylic high-performance water reducing agent and 85 parts of water.
3. The building exterior wall thermal insulation mortar with good rheological property as claimed in claim 1, wherein 6g of sodium xylene sulfonate and 7g of sodium alginate are added.
4. The building exterior wall thermal insulation mortar with good rheological property according to claim 1, wherein a magnetic stirrer is used for stirring reaction at a rotating speed of 200 r/min.
5. The building exterior wall thermal insulation mortar with good rheological property according to claim 1, wherein the rotating speed of the magnetic stirrer is adjusted to 360 r/min.
6. The building exterior wall thermal insulation mortar with good rheological property according to claim 1, wherein the centrifugal treatment time is 30 minutes.
7. The building exterior wall insulation mortar with good rheological property according to claim 1, wherein the mass ratio of pitchstone to obsidian is 1: 0.3.
8. the building external wall thermal insulation mortar with good rheological property according to claim 1, wherein the crushed powder is heated to 450 ℃ and is subjected to thermal insulation for 1 hour.
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| CN109133823A (en) | 2019-01-04 |
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