CN108911674B - High-strength building assembly type wall material and preparation method thereof - Google Patents
High-strength building assembly type wall material and preparation method thereof Download PDFInfo
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- CN108911674B CN108911674B CN201810973062.9A CN201810973062A CN108911674B CN 108911674 B CN108911674 B CN 108911674B CN 201810973062 A CN201810973062 A CN 201810973062A CN 108911674 B CN108911674 B CN 108911674B
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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
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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
- C04B2111/52—Sound-insulating materials
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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
Abstract
The invention discloses a high-strength building assembly type wall material, which comprises the following raw materials: sulphoaluminate cement, portland cement clinker, gypsum, limestone, water, slag, quartz sand, modified fly ash, basalt, medical stone, whitlockite and a water reducing agent. The invention also discloses a preparation method of the high-strength building assembly type wall material. The wall material prepared by the invention has good mechanical property, excellent compressive strength, good fireproof performance and sound insulation effect, and excellent impact resistance, can be used in higher-layer assembled buildings, and has wide market prospect; according to the invention, basalt, medical stone and borocalcite are matched with each other, so that the cement can form good bonding with a cementing material such as sulphoaluminate cement, and the like, and meanwhile, the dual curing of the auxiliary curing treatment plays a role in synergy, and the compressive strength of the material is effectively improved.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a high-strength building assembly type wall material and a preparation method thereof.
Background
With the continuous development of society, the building industry is also continuously carrying out industrialized upgrading. The traditional building structure mainly made of concrete pouring and brick laying has more and more prominent problems under the conditions of resource shortage and severe environment protection situation due to the reasons of complex construction, long period, easy pollution to the environment and the like.
In recent years, the assembly type building is more and more popular with people due to the advantages of high construction speed, low cost, high labor efficiency, effective reduction of dust pollution, noise pollution, water pollution and the like, and has wide development prospect in the field of urban building in the future. Among them, building fabricated wall materials are used as an important ring in fabricated buildings, and the quality of the building fabricated wall materials directly influences the performance of the building. However, the function of the building assembled wall materials in the current market is single, and the compressive strength is general, so that the building assembled wall materials cannot be applied to the assembled buildings of higher floors. Therefore, it is required to design a high-strength construction assembly type wall material.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provide a high-strength building fabricated wall material and a preparation method thereof, and the wall material prepared by taking sulphoaluminate cement, portland cement clinker, gypsum, limestone, water, furnace slag, quartz sand, modified fly ash, basalt, medical stone, whitlockite, a water reducing agent and the like as raw materials has good mechanical properties and excellent compressive strength, can be used in a higher-layer fabricated building, and has wide market prospect.
The purpose of the invention can be realized by the following technical scheme:
a high-strength building assembly type wall material comprises the following raw materials in parts by weight: 2-6 parts of sulphoaluminate cement, 20-26 parts of portland cement clinker, 0.7-1.3 parts of gypsum, 1-5 parts of limestone, 16-22 parts of water, 6-10 parts of furnace slag, 6-10 parts of quartz sand, 28-36 parts of modified fly ash, 8-14 parts of basalt, 5-9 parts of medical stone, 1-5 parts of borocalcite and 0.1-0.5 part of water reducing agent.
Further, the high-strength building assembled wall material comprises the following raw materials in parts by weight: 3-5 parts of sulphoaluminate cement, 22-25 parts of portland cement clinker, 0.8-1.2 parts of gypsum, 2-4 parts of limestone, 17-20 parts of water, 7-9 parts of furnace slag, 7-9 parts of quartz sand, 30-35 parts of modified fly ash, 10-12 parts of basalt, 6-8 parts of medical stone, 2-4 parts of borocalcite and 0.2-0.4 part of water reducing agent.
Further, the high-strength building assembled wall material comprises the following raw materials in parts by weight: 4 parts of sulphoaluminate cement, 24 parts of portland cement clinker, 1 part of gypsum, 3 parts of limestone, 19 parts of water, 8 parts of furnace slag, 8 parts of quartz sand, 32 parts of modified fly ash, 11 parts of basalt, 7 parts of medical stone, 3 parts of borocalcite and 0.3 part of water reducing agent; the basalt, the medical stone and the borocalcite are matched with each other, so that the cement can form good bonding with a cementing material such as sulphoaluminate cement, and the strength of the material is effectively improved.
Further, the preparation method of the modified fly ash comprises the steps of weighing a proper amount of fly ash, grinding the fly ash to 40 meshes, mixing the fly ash with high bauxite with the grain diameter of 40 meshes according to the weight ratio of 6:1, putting the mixture into a stirrer, mechanically stirring the mixture at the speed of 600r/min at the temperature of 80 ℃ for 15min, then putting the mixture into a vacuum tank, vacuumizing the vacuum tank to 100Pa, stabilizing the pressure for 20min, then filling nitrogen with the purity of 99.99 percent, recovering the nitrogen to the normal pressure, then heating the mixture to 210 ℃ at the heating rate of 2.5 ℃/min, preserving the heat for 40min, naturally cooling the mixture to the room temperature, and grinding the mixture to 40 meshes to obtain the modified fly ash; the specific surface area of the fly ash is 420m2Per kg; the fly ash is used for preparing wall materials after being modified, so that the mechanical strength of the materials can be effectively improved, and the fly ash is energy-saving and environment-friendly.
Further, the particle size distribution of the basalt is as follows: the first granularity section is less than 4 microns and accounts for 12 percent of the total mass of the basalt; a second particle size range, 4 to 20 microns, accounting for 68 percent of the total mass of the basalt; a third particle size section, 21-60 microns, accounting for 20% of the total mass of the basalt; the particle size distribution of the quartz sand is as follows: the first granularity section is less than 5 microns and accounts for 17 percent of the total mass of the quartz sand; a second particle size section, 5-40 microns, accounts for 67% of the total mass of the quartz sand; a third granularity section, 40-70 microns, accounting for 16% of the total mass of the quartz sand; the basalt and the quartz sand are compounded according to different particle size distributions, so that the bonding effect of the basalt and the quartz sand in a cementing material such as sulphoaluminate cement is effectively improved, and the mechanical property of the material is favorably improved.
Further, the water reducing agent is a polycarboxylic acid high-performance water reducing agent; the particle sizes of the limestone, the slag, the medical stone and the borocalcite are all 1-100 meshes.
A preparation method of a high-strength building assembly type wall material specifically comprises the following steps:
1) weighing portland cement clinker, gypsum and limestone according to parts by weight, mixing together, and mechanically stirring at a stirring speed of 200r/min for 20min to obtain a mixture A;
2) weighing furnace slag, quartz sand, modified fly ash, basalt, medical stone and borocalcite according to the weight parts, mixing the materials together, and mechanically stirring the mixture for 30min at a stirring speed of 300r/min to obtain a mixture B;
3) weighing sulphoaluminate cement according to the weight part, putting the sulphoaluminate cement into a stirrer, adding the mixture A obtained in the step 1) and the mixture B obtained in the step 2), adding water and a water reducing agent, and stirring and mixing uniformly at 45 ℃ to obtain slurry C;
4) injecting the slurry C obtained in the step 3) into a forming die for solidification forming, and demolding after 18 hours for curing treatment to obtain the slurry C.
Further, in the step 4), the curing treatment is that after steam curing is carried out for 6 hours at the temperature of 70 ℃, the mixture is placed into a curing chamber and cured for 15 days at the temperature of 20 ℃ and the humidity of 85%; through double maintenance, the mechanical property of the material can be effectively improved.
The high-strength building assembly wall material is used for preparing building materials.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1) the wall material prepared by the invention has good mechanical property, excellent compressive strength, good fireproof performance and sound insulation effect, and excellent impact resistance, can be used in higher-layer assembled buildings, and has wide market prospect;
2) according to the invention, basalt, medical stone and borocalcite are matched with each other, so that the cement can form good bonding with a cementing material such as sulphoaluminate cement, and the like, and meanwhile, the dual curing of the auxiliary curing treatment plays a role in synergy, and the compressive strength of the material is effectively improved.
Detailed Description
The present invention will be described in detail with reference to specific examples. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example 1
A high-strength building assembly type wall material comprises the following raw materials in parts by weight: 2 parts of sulphoaluminate cement, 20 parts of portland cement clinker, 0.7 part of gypsum, 1 part of limestone, 16 parts of water, 6 parts of furnace slag, 6 parts of quartz sand, 28 parts of modified fly ash, 8 parts of basalt, 5 parts of medical stone, 1 part of borocalcite and 0.1 part of water reducing agent; the basalt, the medical stone and the borocalcite are matched with each other, so that the cement can form good bonding with a cementing material such as sulphoaluminate cement, and the strength of the material is effectively improved;
weighing a proper amount of fly ash, grinding the fly ash to 40 meshes, mixing the fly ash with high-alumina bauxite with the particle size of 40 meshes according to the weight ratio of 6:1, putting the mixture into a stirrer, mechanically stirring the mixture at the speed of 600r/min at 80 ℃ for 15min, then putting the mixture into a vacuum tank, vacuumizing the vacuum tank to 100Pa, stabilizing the pressure for 20min, then filling nitrogen with the purity of 99.99 percent, recovering the nitrogen to the normal pressure, then heating the mixture to 210 ℃ at the heating rate of 2.5 ℃/min, preserving the heat for 40min, naturally cooling the mixture to the room temperature, and grinding the mixture to 40 meshes to obtain the modified fly ash; the specific surface area of the fly ash is 420m2Per kg; the fly ash is modified and then used for preparing a wall material, so that the mechanical strength of the material can be effectively improved, and the material is energy-saving and environment-friendly;
the particle size distribution of the basalt is as follows: the first granularity section is less than 4 microns and accounts for 12 percent of the total mass of the basalt; a second particle size range, 4 to 20 microns, accounting for 68 percent of the total mass of the basalt; a third particle size section, 21-60 microns, accounting for 20% of the total mass of the basalt; the particle size distribution of the quartz sand is as follows: the first granularity section is less than 5 microns and accounts for 17 percent of the total mass of the quartz sand; a second particle size section, 5-40 microns, accounts for 67% of the total mass of the quartz sand; a third granularity section, 40-70 microns, accounting for 16% of the total mass of the quartz sand; the water reducing agent is a polycarboxylic acid high-performance water reducing agent; the particle sizes of the limestone, the slag, the medical stone and the borocalcite are all 10 meshes.
In this embodiment, the preparation method of the high-strength building assembled wall material specifically includes the following steps:
1) weighing portland cement clinker, gypsum and limestone according to parts by weight, mixing together, and mechanically stirring at a stirring speed of 200r/min for 20min to obtain a mixture A;
2) weighing furnace slag, quartz sand, modified fly ash, basalt, medical stone and borocalcite according to the weight parts, mixing the materials together, and mechanically stirring the mixture for 30min at a stirring speed of 300r/min to obtain a mixture B;
3) weighing sulphoaluminate cement according to the weight part, putting the sulphoaluminate cement into a stirrer, adding the mixture A obtained in the step 1) and the mixture B obtained in the step 2), adding water and a water reducing agent, and stirring and mixing uniformly at 45 ℃ to obtain slurry C;
4) injecting the slurry C obtained in the step 3) into a forming die for solidification forming, demolding after 18 hours, and performing maintenance treatment to obtain the slurry C; wherein the curing treatment is that the mixture is put into a curing chamber for curing for 15 days under the conditions that the temperature is 20 ℃ and the humidity is 85 percent after steam curing is carried out for 6 hours at the temperature of 70 ℃; through double maintenance, the mechanical property of the material can be effectively improved.
Example 2
A high-strength building assembly type wall material comprises the following raw materials in parts by weight: 6 parts of sulphoaluminate cement, 26 parts of portland cement clinker, 1.3 parts of gypsum, 5 parts of limestone, 22 parts of water, 10 parts of furnace slag, 10 parts of quartz sand, 36 parts of modified fly ash, 14 parts of basalt, 9 parts of medical stone, 5 parts of borocalcite and 0.5 part of water reducing agent; the basalt, the medical stone and the borocalcite are matched with each other, so that the cement can form good bonding with a cementing material such as sulphoaluminate cement, and the strength of the material is effectively improved;
weighing a proper amount of fly ash, grinding the fly ash to 40 meshes, mixing the fly ash with high-alumina bauxite with the particle size of 40 meshes according to the weight ratio of 6:1, putting the mixture into a stirrer, mechanically stirring the mixture at the speed of 600r/min at 80 ℃ for 15min, then putting the mixture into a vacuum tank, vacuumizing the vacuum tank to 100Pa, stabilizing the pressure for 20min, then filling nitrogen with the purity of 99.99 percent, recovering the nitrogen to the normal pressure, then heating the mixture to 210 ℃ at the heating rate of 2.5 ℃/min, preserving the heat for 40min, naturally cooling the mixture to the room temperature, and grinding the mixture to 40 meshes to obtain the modified fly ash; the specific surface area of the fly ash is 420m2Per kg; the fly ash is modified and then used for preparing a wall material, so that the mechanical strength of the material can be effectively improved, and the material is energy-saving and environment-friendly;
the particle size distribution of the basalt is as follows: the first granularity section is less than 4 microns and accounts for 12 percent of the total mass of the basalt; a second particle size range, 4 to 20 microns, accounting for 68 percent of the total mass of the basalt; a third particle size section, 21-60 microns, accounting for 20% of the total mass of the basalt; the particle size distribution of the quartz sand is as follows: the first granularity section is less than 5 microns and accounts for 17 percent of the total mass of the quartz sand; a second particle size section, 5-40 microns, accounts for 67% of the total mass of the quartz sand; a third granularity section, 40-70 microns, accounting for 16% of the total mass of the quartz sand; the water reducing agent is a polycarboxylic acid high-performance water reducing agent; the particle sizes of the limestone, the slag, the medical stone and the borocalcite are all 10 meshes.
In this embodiment, the preparation method of the high-strength building assembled wall material specifically includes the following steps:
1) weighing portland cement clinker, gypsum and limestone according to parts by weight, mixing together, and mechanically stirring at a stirring speed of 200r/min for 20min to obtain a mixture A;
2) weighing furnace slag, quartz sand, modified fly ash, basalt, medical stone and borocalcite according to the weight parts, mixing the materials together, and mechanically stirring the mixture for 30min at a stirring speed of 300r/min to obtain a mixture B;
3) weighing sulphoaluminate cement according to the weight part, putting the sulphoaluminate cement into a stirrer, adding the mixture A obtained in the step 1) and the mixture B obtained in the step 2), adding water and a water reducing agent, and stirring and mixing uniformly at 45 ℃ to obtain slurry C;
4) injecting the slurry C obtained in the step 3) into a forming die for solidification forming, demolding after 18 hours, and performing maintenance treatment to obtain the slurry C; wherein the curing treatment is that the mixture is put into a curing chamber for curing for 15 days under the conditions that the temperature is 20 ℃ and the humidity is 85 percent after steam curing is carried out for 6 hours at the temperature of 70 ℃; through double maintenance, the mechanical property of the material can be effectively improved.
Example 3
A high-strength building assembly type wall material comprises the following raw materials in parts by weight: 4 parts of sulphoaluminate cement, 23 parts of portland cement clinker, 1 part of gypsum, 3 parts of limestone, 19 parts of water, 8 parts of furnace slag, 8 parts of quartz sand, 32 parts of modified fly ash, 11 parts of basalt, 7 parts of medical stone, 3 parts of borocalcite and 0.3 part of water reducing agent; the basalt, the medical stone and the borocalcite are matched with each other, so that the cement can form good bonding with a cementing material such as sulphoaluminate cement, and the strength of the material is effectively improved;
weighing a proper amount of fly ash, grinding the fly ash to 40 meshes, mixing the fly ash with high-alumina bauxite with the particle size of 40 meshes according to the weight ratio of 6:1, putting the mixture into a stirrer, mechanically stirring the mixture at the speed of 600r/min at 80 ℃ for 15min, then putting the mixture into a vacuum tank, vacuumizing the vacuum tank to 100Pa, stabilizing the pressure for 20min, then filling nitrogen with the purity of 99.99 percent, recovering the nitrogen to the normal pressure, then heating the mixture to 210 ℃ at the heating rate of 2.5 ℃/min, preserving the heat for 40min, naturally cooling the mixture to the room temperature, and grinding the mixture to 40 meshes to obtain the modified fly ash; the specific surface area of the fly ash is 420m2Per kg; the fly ash is modified and then used for preparing a wall material, so that the mechanical strength of the material can be effectively improved, and the material is energy-saving and environment-friendly;
the particle size distribution of the basalt is as follows: the first granularity section is less than 4 microns and accounts for 12 percent of the total mass of the basalt; a second particle size range, 4 to 20 microns, accounting for 68 percent of the total mass of the basalt; a third particle size section, 21-60 microns, accounting for 20% of the total mass of the basalt; the particle size distribution of the quartz sand is as follows: the first granularity section is less than 5 microns and accounts for 17 percent of the total mass of the quartz sand; a second particle size section, 5-40 microns, accounts for 67% of the total mass of the quartz sand; a third granularity section, 40-70 microns, accounting for 16% of the total mass of the quartz sand; the water reducing agent is a polycarboxylic acid high-performance water reducing agent; the particle sizes of the limestone, the slag, the medical stone and the borocalcite are all 10 meshes.
In this embodiment, the preparation method of the high-strength building assembled wall material specifically includes the following steps:
1) weighing portland cement clinker, gypsum and limestone according to parts by weight, mixing together, and mechanically stirring at a stirring speed of 200r/min for 20min to obtain a mixture A;
2) weighing furnace slag, quartz sand, modified fly ash, basalt, medical stone and borocalcite according to the weight parts, mixing the materials together, and mechanically stirring the mixture for 30min at a stirring speed of 300r/min to obtain a mixture B;
3) weighing sulphoaluminate cement according to the weight part, putting the sulphoaluminate cement into a stirrer, adding the mixture A obtained in the step 1) and the mixture B obtained in the step 2), adding water and a water reducing agent, and stirring and mixing uniformly at 45 ℃ to obtain slurry C;
4) injecting the slurry C obtained in the step 3) into a forming die for solidification forming, demolding after 18 hours, and performing maintenance treatment to obtain the slurry C; wherein the curing treatment is that the mixture is put into a curing chamber for curing for 15 days under the conditions that the temperature is 20 ℃ and the humidity is 85 percent after steam curing is carried out for 6 hours at the temperature of 70 ℃; through double maintenance, the mechanical property of the material can be effectively improved.
Example 4
A high-strength building assembly type wall material comprises the following raw materials in parts by weight: 3 parts of sulphoaluminate cement, 22 parts of portland cement clinker, 0.8 part of gypsum, 2 parts of limestone, 17 parts of water, 7 parts of furnace slag, 7 parts of quartz sand, 30 parts of modified fly ash, 10 parts of basalt, 6 parts of medical stone, 2 parts of borocalcite and 0.2 part of water reducing agent; the basalt, the medical stone and the borocalcite are matched with each other, so that the cement can form good bonding with a cementing material such as sulphoaluminate cement, and the strength of the material is effectively improved;
weighing a proper amount of fly ash, grinding the fly ash to 40 meshes, mixing the fly ash with high-alumina bauxite with the particle size of 40 meshes according to the weight ratio of 6:1, putting the mixture into a stirrer, mechanically stirring the mixture at the speed of 600r/min at 80 ℃ for 15min, then putting the mixture into a vacuum tank, vacuumizing the vacuum tank to 100Pa, stabilizing the pressure for 20min, then filling nitrogen with the purity of 99.99 percent, recovering the nitrogen to the normal pressure, then heating the mixture to 210 ℃ at the heating rate of 2.5 ℃/min, preserving the heat for 40min, naturally cooling the mixture to the room temperature, and grinding the mixture to 40 meshes to obtain the modified fly ash; the fly ash is modified and then used for preparing a wall material, so that the mechanical strength of the material can be effectively improved, and the material is energy-saving and environment-friendly; the water reducing agent is a polycarboxylic acid high-performance water reducing agent; the particle sizes of the limestone, the slag, the medical stone and the borocalcite are all 10 meshes.
In this embodiment, the preparation method of the high-strength building assembled wall material specifically includes the following steps:
1) weighing portland cement clinker, gypsum and limestone according to parts by weight, mixing together, and mechanically stirring at a stirring speed of 200r/min for 20min to obtain a mixture A;
2) weighing furnace slag, quartz sand, modified fly ash, basalt, medical stone and borocalcite according to the weight parts, mixing the materials together, and mechanically stirring the mixture for 30min at a stirring speed of 300r/min to obtain a mixture B;
3) weighing sulphoaluminate cement according to the weight part, putting the sulphoaluminate cement into a stirrer, adding the mixture A obtained in the step 1) and the mixture B obtained in the step 2), adding water and a water reducing agent, and stirring and mixing uniformly at 45 ℃ to obtain slurry C;
4) injecting the slurry C obtained in the step 3) into a forming die for solidification forming, demolding after 18 hours, and performing maintenance treatment to obtain the slurry C; wherein the curing treatment is that the mixture is put into a curing chamber for curing for 15 days under the conditions that the temperature is 20 ℃ and the humidity is 85 percent after steam curing is carried out for 6 hours at the temperature of 70 ℃; through double maintenance, the mechanical property of the material can be effectively improved.
Example 5
A high-strength building assembly type wall material comprises the following raw materials in parts by weight: 5 parts of sulphoaluminate cement, 25 parts of portland cement clinker, 1.2 parts of gypsum, 4 parts of limestone, 20 parts of water, 9 parts of furnace slag, 9 parts of quartz sand, 35 parts of modified fly ash, 12 parts of basalt, 8 parts of medical stone, 4 parts of borocalcite and 0.4 part of water reducing agent; the basalt, the medical stone and the borocalcite are matched with each other, so that the cement can form good bonding with a cementing material such as sulphoaluminate cement, and the strength of the material is effectively improved;
weighing a proper amount of fly ash, grinding the fly ash to 40 meshes, mixing the fly ash with high-alumina bauxite with the particle size of 40 meshes according to the weight ratio of 6:1, putting the mixture into a stirrer, mechanically stirring the mixture at the speed of 600r/min at 80 ℃ for 15min, then putting the mixture into a vacuum tank, vacuumizing the vacuum tank to 100Pa, stabilizing the pressure for 20min, then filling nitrogen with the purity of 99.99 percent, recovering the nitrogen to the normal pressure, then heating the mixture to 210 ℃ at the heating rate of 2.5 ℃/min, preserving the heat for 40min, naturally cooling the mixture to the room temperature, and grinding the mixture to 40 meshes to obtain the modified fly ash; the fly ash is modified and then used for preparing a wall material, so that the mechanical strength of the material can be effectively improved, and the material is energy-saving and environment-friendly; the water reducing agent is a polycarboxylic acid high-performance water reducing agent; the particle sizes of the limestone, the slag, the medical stone and the borocalcite are all 10 meshes.
In this embodiment, the preparation method of the high-strength building assembled wall material specifically includes the following steps:
1) weighing portland cement clinker, gypsum and limestone according to parts by weight, mixing together, and mechanically stirring at a stirring speed of 200r/min for 20min to obtain a mixture A;
2) weighing furnace slag, quartz sand, modified fly ash, basalt, medical stone and borocalcite according to the weight parts, mixing the materials together, and mechanically stirring the mixture for 30min at a stirring speed of 300r/min to obtain a mixture B;
3) weighing sulphoaluminate cement according to the weight part, putting the sulphoaluminate cement into a stirrer, adding the mixture A obtained in the step 1) and the mixture B obtained in the step 2), adding water and a water reducing agent, and stirring and mixing uniformly at 45 ℃ to obtain slurry C;
4) injecting the slurry C obtained in the step 3) into a forming die for solidification forming, demolding after 18 hours, and performing maintenance treatment to obtain the slurry C; wherein the curing treatment is that the mixture is put into a curing chamber for curing for 15 days under the conditions that the temperature is 20 ℃ and the humidity is 85 percent after steam curing is carried out for 6 hours at the temperature of 70 ℃; through double maintenance, the mechanical property of the material can be effectively improved.
Example 6
A high-strength building assembly type wall material comprises the following raw materials in parts by weight: 4 parts of sulphoaluminate cement, 23.5 parts of portland cement clinker, 1 part of gypsum, 3 parts of limestone, 18.5 parts of water, 8 parts of furnace slag, 8 parts of quartz sand, 32.5 parts of modified fly ash, 11 parts of basalt, 7 parts of medical stone, 3 parts of borocalcite and 0.3 part of water reducing agent; the basalt, the medical stone and the borocalcite are matched with each other, so that the cement can form good bonding with a cementing material such as sulphoaluminate cement, and the strength of the material is effectively improved;
weighing a proper amount of fly ash, grinding the fly ash to 40 meshes, mixing the fly ash with high-alumina bauxite with the particle size of 40 meshes according to the weight ratio of 6:1, putting the mixture into a stirrer, mechanically stirring the mixture at the speed of 600r/min at 80 ℃ for 15min, then putting the mixture into a vacuum tank, vacuumizing the vacuum tank to 100Pa, stabilizing the pressure for 20min, then filling nitrogen with the purity of 99.99 percent, recovering the nitrogen to the normal pressure, then heating the mixture to 210 ℃ at the heating rate of 2.5 ℃/min, preserving the heat for 40min, naturally cooling the mixture to the room temperature, and grinding the mixture to 40 meshes to obtain the modified fly ash; the fly ash is modified and then used for preparing a wall material, so that the mechanical strength of the material can be effectively improved, and the material is energy-saving and environment-friendly; the water reducing agent is a polycarboxylic acid high-performance water reducing agent; the particle sizes of the limestone, the slag, the medical stone and the borocalcite are all 10 meshes.
In this embodiment, the preparation method of the high-strength building assembled wall material specifically includes the following steps:
1) weighing portland cement clinker, gypsum and limestone according to parts by weight, mixing together, and mechanically stirring at a stirring speed of 200r/min for 20min to obtain a mixture A;
2) weighing furnace slag, quartz sand, modified fly ash, basalt, medical stone and borocalcite according to the weight parts, mixing the materials together, and mechanically stirring the mixture for 30min at a stirring speed of 300r/min to obtain a mixture B;
3) weighing sulphoaluminate cement according to the weight part, putting the sulphoaluminate cement into a stirrer, adding the mixture A obtained in the step 1) and the mixture B obtained in the step 2), adding water and a water reducing agent, and stirring and mixing uniformly at 45 ℃ to obtain slurry C;
4) injecting the slurry C obtained in the step 3) into a forming die for solidification forming, demolding after 18 hours, and performing maintenance treatment to obtain the slurry C; wherein the curing treatment is that the mixture is put into a curing chamber for curing for 15 days under the conditions that the temperature is 20 ℃ and the humidity is 85 percent after steam curing is carried out for 6 hours at the temperature of 70 ℃; through double maintenance, the mechanical property of the material can be effectively improved.
Example 7
A high-strength building assembly type wall material comprises the following raw materials in parts by weight: 4 parts of sulphoaluminate cement, 24 parts of portland cement clinker, 1 part of gypsum, 3 parts of limestone, 19 parts of water, 8 parts of furnace slag, 8 parts of quartz sand, 32 parts of modified fly ash, 11 parts of basalt, 7 parts of medical stone, 3 parts of borocalcite and 0.3 part of water reducing agent; the basalt, the medical stone and the borocalcite are matched with each other, so that the cement can form good bonding with a cementing material such as sulphoaluminate cement, and the strength of the material is effectively improved;
weighing a proper amount of fly ash, grinding the fly ash to 40 meshes, mixing the fly ash with high-alumina bauxite with the particle size of 40 meshes according to the weight ratio of 6:1, putting the mixture into a stirrer, mechanically stirring the mixture at the speed of 600r/min at 80 ℃ for 15min, then putting the mixture into a vacuum tank, vacuumizing the vacuum tank to 100Pa, stabilizing the pressure for 20min, then filling nitrogen with the purity of 99.99 percent, recovering the nitrogen to the normal pressure, then heating the mixture to 210 ℃ at the heating rate of 2.5 ℃/min, preserving the heat for 40min, naturally cooling the mixture to the room temperature, and grinding the mixture to 40 meshes to obtain the modified fly ash; the specific surface area of the fly ash is 420m2Per kg; the fly ash is used for preparing wall materials after being modified, so that the content of fly ash can be effectively improvedThe mechanical strength of the material is high, and meanwhile, the energy is saved and the environment is protected;
the particle size distribution of the basalt is as follows: the first granularity section is less than 4 microns and accounts for 12 percent of the total mass of the basalt; a second particle size range, 4 to 20 microns, accounting for 68 percent of the total mass of the basalt; a third particle size section, 21-60 microns, accounting for 20% of the total mass of the basalt; the particle size distribution of the quartz sand is as follows: the first granularity section is less than 5 microns and accounts for 17 percent of the total mass of the quartz sand; a second particle size section, 5-40 microns, accounts for 67% of the total mass of the quartz sand; a third granularity section, 40-70 microns, accounting for 16% of the total mass of the quartz sand; the water reducing agent is a polycarboxylic acid high-performance water reducing agent; the particle sizes of the limestone, the slag, the medical stone and the borocalcite are all 10 meshes.
In this embodiment, the preparation method of the high-strength building assembled wall material specifically includes the following steps:
1) weighing portland cement clinker, gypsum and limestone according to parts by weight, mixing together, and mechanically stirring at a stirring speed of 200r/min for 20min to obtain a mixture A;
2) weighing furnace slag, quartz sand, modified fly ash, basalt, medical stone and borocalcite according to the weight parts, mixing the materials together, and mechanically stirring the mixture for 30min at a stirring speed of 300r/min to obtain a mixture B;
3) weighing sulphoaluminate cement according to the weight part, putting the sulphoaluminate cement into a stirrer, adding the mixture A obtained in the step 1) and the mixture B obtained in the step 2), adding water and a water reducing agent, and stirring and mixing uniformly at 45 ℃ to obtain slurry C;
4) injecting the slurry C obtained in the step 3) into a forming die for solidification forming, demolding after 18 hours, and performing maintenance treatment to obtain the slurry C; wherein the curing treatment is that the mixture is put into a curing chamber for curing for 15 days under the conditions that the temperature is 20 ℃ and the humidity is 85 percent after steam curing is carried out for 6 hours at the temperature of 70 ℃; through double maintenance, the mechanical property of the material can be effectively improved.
Comparative example 1
The composition was the same as in example 7 except that basalt was not contained as in example 7.
Comparative example 2
Compared with the example 7, the medical stone and the borocalcite are not contained, and the rest is the same as the example 7.
Comparative example 3
Compared with example 7, the paint does not contain basalt, medical stone and borocalcite, and the rest is the same as example 7.
Comparative example 4
Compared with the example 7, the method is the same as the example 7 except that the curing treatment in the step 4) is changed to the curing in a standard curing room for 15 days.
Performance testing
The high-strength constructional wall materials prepared in example 7 and comparative examples 1 to 4 were tested, and the test results are shown in table 1.
By comparing the data of the embodiment 7 with the data of the comparative example 1, the compressive strength of the material can be effectively improved by adding the basalt; by comparing the data of example 7 with the data of comparative example 2, the invention can find that the compressive strength of the material can be effectively improved by adding the medical stone and the borocalcite.
In addition, by combining the data of the example 7 and the data of the comparative examples 1 to 4, the invention can find that the basalt, the medical stone and the borocalcite are matched with each other, so that the cement can form good bonding with the gelled materials such as sulphoaluminate cement, and the like, and meanwhile, the double curing of the curing treatment is assisted, so that the synergistic effect is achieved, and the compressive strength of the material is effectively improved.
TABLE 1 test results Table
From the results, the wall material prepared by the invention has good mechanical properties, excellent compressive strength, good fireproof performance and sound insulation effect, and excellent impact resistance, can be used in higher-layer assembly type buildings, and has wide market prospect; according to the invention, basalt, medical stone and borocalcite are matched with each other, so that the cement can form good bonding with a cementing material such as sulphoaluminate cement, and the like, and meanwhile, the dual curing of the auxiliary curing treatment plays a role in synergy, and the compressive strength of the material is effectively improved.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. And are neither required nor exhaustive of all embodiments. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (1)
1. The high-strength building assembled wall material is characterized by comprising the following raw materials in parts by weight: 4 parts of sulphoaluminate cement, 24 parts of portland cement clinker, 1 part of gypsum, 3 parts of limestone, 19 parts of water, 8 parts of furnace slag, 8 parts of quartz sand, 32 parts of modified fly ash, 11 parts of basalt, 7 parts of medical stone, 3 parts of borocalcite and 0.3 part of water reducing agent; weighing a proper amount of fly ash, grinding the fly ash to 40 meshes, mixing the fly ash with high-alumina bauxite with the particle size of 40 meshes according to the weight ratio of 6:1, putting the mixture into a stirrer, mechanically stirring the mixture at the speed of 600r/min at 80 ℃ for 15min, then putting the mixture into a vacuum tank, vacuumizing the vacuum tank to 100Pa, stabilizing the pressure for 20min, then filling nitrogen with the purity of 99.99 percent, recovering the nitrogen to the normal pressure, then heating the mixture to 210 ℃ at the heating rate of 2.5 ℃/min, preserving the heat for 40min, naturally cooling the mixture to the room temperature, and grinding the mixture to 40 meshes to obtain the modified fly ash; the specific surface area of the fly ash is 420m2Per kg; the particle size distribution of the basalt is as follows: the first granularity section is less than 4 microns and accounts for 12 percent of the total mass of the basalt; a second particle size range, 4 to 20 microns, accounting for 68 percent of the total mass of the basalt; a third particle size section, 21-60 microns, accounting for 20% of the total mass of the basalt; the particle size distribution of the quartz sand is as follows: the first granularity section is less than 5 microns and accounts for 17 percent of the total mass of the quartz sand; first, theA second granularity section, 5-40 microns, accounting for 67% of the total mass of the quartz sand; a third granularity section, 40-70 microns, accounting for 16% of the total mass of the quartz sand; the water reducing agent is a polycarboxylic acid high-performance water reducing agent; the particle sizes of the limestone, the furnace slag, the medical stone and the borocalcite are all 10 meshes; the preparation method of the high-strength building assembly type wall material specifically comprises the following steps: 1) weighing portland cement clinker, gypsum and limestone according to parts by weight, mixing together, and mechanically stirring at a stirring speed of 200r/min for 20min to obtain a mixture A; 2) weighing furnace slag, quartz sand, modified fly ash, basalt, medical stone and borocalcite according to the weight parts, mixing the materials together, and mechanically stirring the mixture for 30min at a stirring speed of 300r/min to obtain a mixture B; 3) weighing sulphoaluminate cement according to the weight part, putting the sulphoaluminate cement into a stirrer, adding the mixture A obtained in the step 1) and the mixture B obtained in the step 2), adding water and a water reducing agent, and stirring and mixing uniformly at 45 ℃ to obtain slurry C; 4) injecting the slurry C obtained in the step 3) into a forming die for solidification forming, demolding after 18 hours, and performing maintenance treatment to obtain a high-strength building assembly type wall material; wherein the curing treatment is that the mixture is put into a curing chamber for curing for 15 days under the conditions that the temperature is 20 ℃ and the humidity is 85 percent after steam curing is carried out for 6 hours at the temperature of 70 ℃.
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| AU2011250735A1 (en) * | 2010-11-19 | 2012-06-07 | Baines Masonary Blocks Pty Ltd | A masonry block and a masonry wall construction |
| CN105060795A (en) * | 2015-08-17 | 2015-11-18 | 吉林省佳瑞生物滤料有限公司 | Light scoria wallboard for construction |
| CN106830845A (en) * | 2017-03-09 | 2017-06-13 | 太原理工大学 | Basalt fibre hollow insulating partition plate and preparation method thereof |
| CN108328980A (en) * | 2018-03-28 | 2018-07-27 | 首钢水城钢铁(集团)赛德建设有限公司 | Combined assembled wallboard of polystyrene and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AU2011250735A1 (en) * | 2010-11-19 | 2012-06-07 | Baines Masonary Blocks Pty Ltd | A masonry block and a masonry wall construction |
| CN105060795A (en) * | 2015-08-17 | 2015-11-18 | 吉林省佳瑞生物滤料有限公司 | Light scoria wallboard for construction |
| CN106830845A (en) * | 2017-03-09 | 2017-06-13 | 太原理工大学 | Basalt fibre hollow insulating partition plate and preparation method thereof |
| CN108328980A (en) * | 2018-03-28 | 2018-07-27 | 首钢水城钢铁(集团)赛德建设有限公司 | Combined assembled wallboard of polystyrene and preparation method thereof |
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