CN104556954A - Magnesium phosphate cement-base porous material and preparation method thereof - Google Patents

Magnesium phosphate cement-base porous material and preparation method thereof Download PDF

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Publication number
CN104556954A
CN104556954A CN201410799954.3A CN201410799954A CN104556954A CN 104556954 A CN104556954 A CN 104556954A CN 201410799954 A CN201410799954 A CN 201410799954A CN 104556954 A CN104556954 A CN 104556954A
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mass parts
flyash
quartz sand
water
magnesium phosphate
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赖振宇
卢忠远
吕淑珍
段新勇
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Southwest University of Science and Technology
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Southwest University of Science and Technology
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Abstract

The invention discloses a magnesium phosphate cement-base porous material and a preparation method thereof. The preparation method is characterized by comprising the following steps: taking the following raw materials in parts by mass: 5-40 parts of dead burnt magnesite, 10-35 parts of ammonium dihydrogen phosphate, 2-15 parts of borax, 10-60 parts of fly ash, 10-60 parts of quartz sand, 0.3-1 part of metallic zinc or iron powder and 5-20 parts of water; uniformly mixing the dead burnt magnesite, ammonium dihydrogen phosphate, borax, fly ash, quartz sand and metallic zinc or iron powder to obtain a powder mixture; adding the powder mixture into a container with a stirring device, adding water while starting time keeping, stirring slowly for 15-30 seconds, stirring quickly for 1.5-3 minutes, stopping stirring for 15 seconds, and stirring quickly for 3-5 minutes to obtain a slurry; and forming the slurry, and curing to obtain the magnesium phosphate cement-base porous material. The porous material disclosed by the invention has the advantages of early strength, quick hardening, favorable acid/alkali attack resistance, favorable thermal-insulation property, low carbon and environment friendliness, and is mainly used as a thermal-insulation material.

Description

A kind of magnesium phosphate cement based porous materials and preparation method thereof
Technical field
The invention belongs to inorganic heat insulation material, relate to a kind of magnesium phosphate cement based porous materials and preparation method thereof.The present invention uses magnesium phosphate cement, prepares phosphate cement based porous materials in metal bleed mode, and obtained porous material product is mainly applied and made heat preserving and insulating material.
Background technology
Heat preserving and insulating material, can be used for reducing indoor and outdoor thermosteresis, effectively reducing air conditioner load, is the important component part of building energy conservation.Along with the raising that country requires building thermal insulation material, inorganic heat insulation material has good development prospect.In prior art, building heat insulation material mainly contains styrofoam, rock cotton board and regular foam concrete, styrofoam is by granules of polystyrene hot briquetting in a mold after heating pre-sending out, rock cotton board take basalt as the inorganic fiberboard that main raw processes through high-temperature fusion, foamed concrete is by utilizing whipping agent physical blowing, foam and cement slurry are mixed, utilizes pumping system to carry out cast-in-place or mould molding, through the novel light lagging material that natural curing is formed.Because granules of polystyrene in styrofoam is inflammable substance, wherein cystose can only fire-retardant fireproof, the highest grade B1, and the higher part fire retardant that causes of extruded sheet production technique temperature decomposes and causes resistivity against fire poor.In rock cotton board, basaltic activity is lower, causes intensity low.Regular foam concrete requires higher to foam process, and maintenance needs 18 ~ 24h, there is the defect that intensity is low, resistivity against fire is poor, therefore urgently develop a kind of intensity high, do not fire, Novel energy saving thermal insulation material that chemical stability is good, environmentally friendly.
Magnesium phosphate cement is also known as Chemical bond pottery, magnesium phosphate cement is made up of dead burned magnesia, phosphoric acid salt, borax and adulterant, not only there is the features such as the hydraulicity of cement, plasticity-, there is the high compressive strength of pottery simultaneously, the characteristic such as high temperature resistant, chemical stability is good.Along with updating of magnesium phosphate cement properties, the purposes of magnesium phosphate cement is also more and more extensive.The magnesium phosphate cement prepared by various method of modifying also has other performances a lot of except having the premium properties of itself, and this also determines the popularity of its Application Areas, can manufacture various building materials, decoration, sound insulation, refractory materials etc.
Summary of the invention
Object of the present invention is intended to overcome deficiency of the prior art, provides a kind of magnesium phosphate cement based porous materials and preparation method thereof.Thus provide a kind of and utilize that magnesium phosphate cement prepares early-strong-fast-hard, acid and alkali-resistance aggressiveness is good, heat-insulating property is good, technological operation is simple, the novel porous materials of low-carbon environment-friendly.
In order to achieve the above object, adopt reheating magnesia, primary ammonium phosphate as gelling material in the present invention, borax is as retardant, and the mode that flyash, quartz sand list are mixed or mixed again prepares magnesium phosphate cement based porous materials as the mineral filler of shielding gamma-component, metallic zinc or iron powder as causing agent.
Content of the present invention is: a kind of magnesium phosphate cement based porous materials, it is characterized in that: by reheating magnesia 5 ~ 40 mass parts, primary ammonium phosphate 10 ~ 35 mass parts, borax 2 ~ 15 mass parts, flyash 10 ~ 60 mass parts, quartz sand 10 ~ 60 mass parts, metallic zinc or iron powder 0.3 ~ 1 mass parts, and the component of water 5 ~ 20 mass parts and the raw material of proportion by weight are through mixing maintenance composition.
Content of the present invention is preferably: described magnesium phosphate cement based porous materials, it is characterized in that: by reheating magnesia 20 ~ 30 mass parts, primary ammonium phosphate 20 ~ 30 mass parts, borax 6 ~ 12 mass parts, flyash 30 ~ 60 mass parts, quartz sand 30 ~ 60 mass parts, metallic zinc or iron powder 0.3 ~ 0.8 mass parts, and the component of water 8 ~ 15 mass parts and the raw material of proportion by weight are through mixing maintenance composition.
Content of the present invention is preferably: described magnesium phosphate cement based porous materials, it is characterized in that: by reheating magnesia 25 mass parts, primary ammonium phosphate 25 mass parts, borax 10 mass parts, flyash 50 mass parts, quartz sand 50 mass parts, metallic zinc or iron powder 0.6 mass parts, and the component of water 12 mass parts and the raw material of proportion by weight are through mixing maintenance composition.
Content of the present invention is preferably: described magnesium phosphate cement based porous materials, it is characterized in that: by reheating magnesia 25 mass parts, primary ammonium phosphate 25 mass parts, borax 10 mass parts, flyash 30 mass parts, quartz sand 20 mass parts, metallic zinc or iron powder 1 mass parts, and the component of water 13 mass parts and the raw material of proportion by weight are through mixing maintenance composition.
Another content of the present invention is: a kind of preparation method of magnesium phosphate cement based porous materials, it is characterized in that step is:
A, batching and grinding; By reheating magnesia 5 ~ 40 mass parts, primary ammonium phosphate 10 ~ 35 mass parts, borax 2 ~ 15 mass parts, flyash 10 ~ 60 mass parts, quartz sand 10 ~ 60 mass parts, metallic zinc or iron powder 0.3 ~ 1 mass parts, and the component of water 5 ~ 20 mass parts and proportion by weight get each raw material; By reburned magnesia sand milling carefully to 10 ~ 50 μm (particle diameter, rear same), quartz sand, flyash are levigate to 5 ~ 50 μm respectively, and primary ammonium phosphate is levigate to 30 ~ 150 μm, for subsequent use;
B, prepare magnesium phosphate cement based porous materials: reheating magnesia, primary ammonium phosphate, borax, flyash, quartz sand and metallic zinc or iron powder are mixed into mixed powder; Mixed powder is put in the container of whipping appts, add water again and start timing while adding water, according to stirring 15 ~ 30s (stirring velocity is 140 ~ 150 revs/min) slowly, stir 1.5 ~ 3min (stirring velocity is 275 ~ 295 revs/min) soon, stop (stopping stirring) 15s, stir the alr mode of 3 ~ 5min (stirring velocity is 275 ~ 295 revs/min) sooner mixed powder is uniformly mixed into slurry with water, slurry is shaping, namely obtain magnesium phosphate cement based porous materials through natural curing.
In another content of the present invention: described in step a, batching and grinding can replace with: by reheating magnesia 20 ~ 30 mass parts, primary ammonium phosphate 20 ~ 30 mass parts, borax 6 ~ 12 mass parts, flyash 30 ~ 60 mass parts, quartz sand 30 ~ 60 mass parts, metallic zinc or iron powder 0.3 ~ 0.8 mass parts, and the component of water 8 ~ 15 mass parts and proportion by weight get each raw material; By reburned magnesia sand milling carefully to 10 ~ 50 μm (particle diameter, rear same), quartz sand, flyash are levigate to 5 ~ 50 μm respectively, and primary ammonium phosphate is levigate to 30 ~ 150 μm, for subsequent use.
In another content of the present invention: described in step a, batching and grinding can also replace with: by reheating magnesia 25 mass parts, primary ammonium phosphate 25 mass parts, borax 10 mass parts, flyash 50 mass parts, quartz sand 50 mass parts, metallic zinc or iron powder 0.6 mass parts, and the component of water 12 mass parts and proportion by weight get each raw material; By reburned magnesia sand milling carefully to 10 ~ 50 μm (particle diameter, rear same), quartz sand, flyash are levigate to 5 ~ 50 μm respectively, and primary ammonium phosphate is levigate to 30 ~ 150 μm, for subsequent use.
In another content of the present invention: described in step a, batching and grinding can also replace with: by reheating magnesia 25 mass parts, primary ammonium phosphate 25 mass parts, borax 10 mass parts, flyash 30 mass parts, quartz sand 20 mass parts, metallic zinc or iron powder 1 mass parts, and the component of water 13 mass parts and proportion by weight get each raw material; By reburned magnesia sand milling carefully to 10 ~ 50 μm (particle diameter, rear same), quartz sand, flyash are levigate to 5 ~ 50 μm respectively, and primary ammonium phosphate is levigate to 30 ~ 150 μm, for subsequent use.
In another content of the present invention: described flyash, quartz sand are mineral filler, the mode of mixing again or singly mix can be adopted to use, and mix identical with the total mass parts consumption singly mixed again; That is: described " flyash 10 ~ 60 mass parts or quartz sand 10 ~ 60 mass parts " can replace with " flyash and quartz sand add up to 10 ~ 60 mass parts "; Described " flyash 30 ~ 60 mass parts or quartz sand 30 ~ 60 mass parts " can replace with " flyash and quartz sand add up to 30 ~ 60 mass parts "; Described " flyash 50 mass parts or quartz sand 50 mass parts " can replace with " flyash and quartz sand add up to 50 mass parts "; Described " flyash 30 mass parts and quartz sand 20 mass parts " can replace with " flyash 50 mass parts " or " quartz sand 50 mass parts ".
Compared with prior art, the present invention has features and beneficial effect:
(1) the present invention adopts reheating magnesia, primary ammonium phosphate as gelling material, borax is as retardant, and flyash, the quartz sand list mode of mixing or mixing again prepares magnesium phosphate cement based porous materials as the mineral filler of shielding gamma-component, metallic zinc or iron powder as causing agent; Magnesium phosphate cement is prepared a kind of novel concrete sill with vesicular structure by the mode of metal bleed, make use of the early-strong-fast-hard of magnesium phosphate cement, characteristic that acid and alkali-resistance aggressiveness is good, show that this kind of material has good heat-insulating property by test thermal conductivity simultaneously; The present invention has expanded the application of magnesium phosphate cement, has started magnesium phosphate cement and has utilized metal aerating mode to prepare the precedent of porous material;
(2) adopt the present invention, magnesium phosphate cement is met water and is swift in response, and thermal discharge is large, and aquation generation take struvite as the hydrated product of main gelling phase; Owing to containing dead burned magnesia in magnesium phosphate cement, its lattice energy is high, is a kind of good refractory materials; High temperature resistant study of contriver to magnesium phosphate cement matrix shows that magnesium phosphate cement still has good volume stability at about 1200 DEG C; During magnesium phosphate cement reaction, water requirement is little, and the contraction at high temperature after dehydration is little; The present invention compares existing inorganic heat insulation material, take full advantage of the early-strong-fast-hard of magnesium phosphate cement, resistant to elevated temperatures characteristic, start a kind of mode of metal bleed that adopts and prepared magnesium phosphate cement porous material, there is good volume stability and intensity in high temperature environments;
(3) adopt the present invention, the porous material utilizing magnesium phosphate cement to prepare have early by force, the good characteristic such as hard soon, its 1d ultimate compression strength can reach more than 6.5MPa, and time of coagulation is about 15min; Improve Portland cement based porous materials long for time of coagulation, the deficiency that early strength is low; The high thermal resistance improving ordinary Portland cement foamed concrete is poor, the problem of shrinkage cracking;
(4) the present invention is adopted, the pore formation mechanism of the porous material utilizing magnesium phosphate cement to prepare mainly utilizes the acid system of magnesium phosphate cement, at the sour environment that dead burned magnesia and ammonium di-hydrogen phosphate initial reaction stage have, react generate hydrogen by adding H+ in active metal and trimagnesium phosphate system, reach the object of pore-forming foaming;
(5) the present invention's a kind of early-strong-fast-hard that utilized magnesium phosphate cement to prepare, acid and alkali-resistance aggressiveness is good, heat-insulating property is good, technological operation is simple, the novel porous materials of low-carbon environment-friendly; The magnesium phosphate cement based porous materials utilizing the mode of metal powder bleed to prepare has widened the Application Areas of magnesium phosphate cement; Preparation technology is simple, and operation is easy, easily operates, practical.
Embodiment
The invention will be further described for embodiment plan given below; but can not be interpreted as it is limiting the scope of the invention; some nonessential improvement and adjustment that person skilled in art makes the present invention according to the content of the invention described above, still belong to protection scope of the present invention.
Embodiment 1:
A preparation method for magnesium phosphate cement based porous materials, its raw material and mass parts consist of: reheating magnesia 25 mass parts, primary ammonium phosphate 25 mass parts, borax 10 mass parts, flyash 50 mass parts, metal zinc 0.6 mass parts, and water 12 mass parts; By reburned magnesia sand milling carefully to 10 ~ 50 μm (particle diameter, rear same), flyash is levigate to 5 ~ 50 μm respectively, and primary ammonium phosphate is levigate to 30 ~ 150 μm, for subsequent use.
The method preparing magnesium phosphate cement based porous materials is: reheating magnesia, primary ammonium phosphate, borax, flyash and metal zinc are mixed into mixed powder; Mixed powder is put in the container of whipping appts, add water again and start timing while adding water, according to stirring 15s (stirring velocity is 140 ~ 150 revs/min) slowly, stir 1.5min (stirring velocity is 275 ~ 295 revs/min) soon, stop (stopping stirring) 15s, stir the alr mode of 3min (stirring velocity is 275 ~ 295 revs/min) sooner mixed powder is uniformly mixed into slurry with water, by shaping for slurry (shaping test block size can be 300 × 300 × 30mm), namely obtain magnesium phosphate cement based porous materials through natural curing.
Embodiment 2:
A preparation method for magnesium phosphate cement based porous materials, its raw material and mass parts consist of: reheating magnesia 35 mass parts, primary ammonium phosphate 35 mass parts, borax 3 mass parts, quartz sand 30 mass parts, metal iron powder 1 mass parts, and water 16 mass parts; By reburned magnesia sand milling carefully to 10 ~ 50 μm (particle diameter, rear same), flyash is levigate to 5 ~ 50 μm respectively, and primary ammonium phosphate is levigate to 30 ~ 150 μm, for subsequent use.
The method preparing magnesium phosphate cement based porous materials is: reheating magnesia, primary ammonium phosphate, borax, quartz sand and metal iron powder are mixed into mixed powder; Mixed powder is put in the container of whipping appts, add water again and start timing while adding water, according to stirring 15s (stirring velocity is 140 ~ 150 revs/min) slowly, stir 1.5min (stirring velocity is 275 ~ 295 revs/min) soon, stop (stopping stirring) 15s, stir the alr mode of 3min (stirring velocity is 275 ~ 295 revs/min) sooner mixed powder is uniformly mixed into slurry with water, by shaping for slurry (shaping test block size can be 300 × 300 × 30mm), namely obtain magnesium phosphate cement based porous materials through natural curing.
Embodiment 3:
A preparation method for magnesium phosphate cement based porous materials, its raw material and mass parts consist of: reheating magnesia 25 mass parts, primary ammonium phosphate 25 mass parts, borax 2.5 mass parts, flyash 30 mass parts, quartz sand 20 mass parts, metal zinc 1 mass parts, and water 13 mass parts; By reburned magnesia sand milling carefully to 10 ~ 50 μm (particle diameter, rear same), flyash, quartz sand are levigate to 5 ~ 50 μm respectively, and primary ammonium phosphate is levigate to 30 ~ 150 μm, for subsequent use.
The method preparing magnesium phosphate cement based porous materials is: reheating magnesia, primary ammonium phosphate, borax, flyash, quartz sand and metal zinc are mixed into mixed powder; Mixed powder is put in the container of whipping appts, add water again and start timing while adding water, according to stirring 15s (stirring velocity is 140 ~ 150 revs/min) slowly, stir 1.5min (stirring velocity is 275 ~ 295 revs/min) soon, stop (stopping stirring) 15s, stir the alr mode of 3min (stirring velocity is 275 ~ 295 revs/min) sooner mixed powder is uniformly mixed into slurry with water, by shaping for slurry (shaping test block size can be 300 × 300 × 30mm), namely obtain magnesium phosphate cement based porous materials through natural curing.
Test-results:
The performance of the magnesium phosphate cement based porous materials that embodiment 1 ~ 3 is obtained sees the following form:
Embodiment 4:
A kind of magnesium phosphate cement based porous materials, by reheating magnesia 5 mass parts, primary ammonium phosphate 10 mass parts, borax 2 mass parts, flyash 10 mass parts, quartz sand 10 mass parts, metallic zinc or iron powder 0.3 mass parts, and the component of water 5 mass parts and the raw material of proportion by weight are through mixing maintenance composition.
Embodiment 5:
A kind of magnesium phosphate cement based porous materials, by reheating magnesia 40 mass parts, primary ammonium phosphate 35 mass parts, borax 15 mass parts, flyash 60 mass parts, quartz sand 60 mass parts, metallic zinc or iron powder 1 mass parts, and the component of water 20 mass parts and the raw material of proportion by weight are through mixing maintenance composition.
Embodiment 6:
A kind of magnesium phosphate cement based porous materials, by reheating magnesia 22 mass parts, primary ammonium phosphate 22 mass parts, borax 8 mass parts, flyash 35 mass parts, quartz sand 35 mass parts, metallic zinc or iron powder 0.7 mass parts, and the component of water 13 mass parts and the raw material of proportion by weight are through mixing maintenance composition.
Embodiment 7 ~ 13:
A kind of magnesium phosphate cement based porous materials, by reheating magnesia 5 ~ 40 mass parts, primary ammonium phosphate 10 ~ 35 mass parts, borax 2 ~ 15 mass parts, flyash 10 ~ 60 mass parts, quartz sand 10 ~ 60 mass parts, metallic zinc or iron powder 0.3 ~ 1 mass parts, and the component of water 5 ~ 20 mass parts and the raw material of proportion by weight are through mixing maintenance composition;
In each embodiment, concrete mass parts (unit: the kg) consumption of each component raw material sees the following form:
Embodiment 14:
A kind of magnesium phosphate cement based porous materials, by reheating magnesia 20 mass parts, primary ammonium phosphate 20 mass parts, borax 6 mass parts, flyash 30 mass parts, quartz sand 30 mass parts, metallic zinc or iron powder 0.3 mass parts, and the component of water 8 mass parts and the raw material of proportion by weight are through mixing maintenance composition.
Embodiment 15:
A kind of magnesium phosphate cement based porous materials, by reheating magnesia 30 mass parts, primary ammonium phosphate 30 mass parts, borax 12 mass parts, flyash 60 mass parts, quartz sand 60 mass parts, metallic zinc or iron powder 0.8 mass parts, and the component of water 15 mass parts and the raw material of proportion by weight are through mixing maintenance composition.
Embodiment 16:
A kind of magnesium phosphate cement based porous materials, by reheating magnesia 25 mass parts, primary ammonium phosphate 25 mass parts, borax 8 mass parts, flyash 45 mass parts, quartz sand 45 mass parts, metallic zinc or iron powder 0.6 mass parts, and the component of water 12 mass parts and the raw material of proportion by weight are through mixing maintenance composition.
Embodiment 17 ~ 23:
A kind of magnesium phosphate cement based porous materials, by reheating magnesia 20 ~ 30 mass parts, primary ammonium phosphate 20 ~ 30 mass parts, borax 6 ~ 12 mass parts, flyash 30 ~ 60 mass parts, quartz sand 30 ~ 60 mass parts, metallic zinc or iron powder 0.3 ~ 0.8 mass parts, and the component of water 8 ~ 15 mass parts and the raw material of proportion by weight are through mixing maintenance composition.
In each embodiment, concrete mass parts (unit: the kg) consumption of each component raw material sees the following form:
Embodiment 24:
A kind of magnesium phosphate cement based porous materials, by reheating magnesia 25 mass parts, primary ammonium phosphate 25 mass parts, borax 10 mass parts, flyash 50 mass parts, quartz sand 50 mass parts, metallic zinc or iron powder 0.6 mass parts, and the component of water 12 mass parts and the raw material of proportion by weight are through mixing maintenance composition.
Embodiment 25:
A kind of magnesium phosphate cement based porous materials, by reheating magnesia 25 mass parts, primary ammonium phosphate 25 mass parts, borax 10 mass parts, flyash 30 mass parts, quartz sand 20 mass parts, metallic zinc or iron powder 1 mass parts, and the component of water 13 mass parts and the raw material of proportion by weight are through mixing maintenance composition.
Embodiment 26:
A preparation method for magnesium phosphate cement based porous materials, step is:
A, batching and grinding; By reheating magnesia 5 ~ 40 mass parts, primary ammonium phosphate 10 ~ 35 mass parts, borax 2 ~ 15 mass parts, flyash 10 ~ 60 mass parts, quartz sand 10 ~ 60 mass parts, metallic zinc or iron powder 0.3 ~ 1 mass parts, and the component of water 5 ~ 20 mass parts and proportion by weight get each raw material; By reburned magnesia sand milling carefully to 10 ~ 50 μm (particle diameter, rear same), quartz sand, flyash are levigate to 5 ~ 50 μm respectively, and primary ammonium phosphate is levigate to 30 ~ 150 μm, for subsequent use;
The concrete mass parts consumption of each component raw material is arbitrary in embodiment 4 ~ 25, omits;
B, prepare magnesium phosphate cement based porous materials: reheating magnesia, primary ammonium phosphate, borax, flyash, quartz sand and metallic zinc or iron powder are mixed into mixed powder; Mixed powder is put in the container of whipping appts, add water again and start timing while adding water, according to stirring 30s (stirring velocity is 140 revs/min) slowly, stir 3min (stirring velocity is 275 revs/min) soon, stop (stopping stirring) 15s, stir the alr mode of 5min (stirring velocity is 275 revs/min) sooner mixed powder is uniformly mixed into slurry with water, by shaping for slurry (shaping test block size can be 300 × 300 × 30mm), namely obtain magnesium phosphate cement based porous materials through natural curing.
Embodiment 27:
A preparation method for magnesium phosphate cement based porous materials, step is:
A, batching and grinding; By reheating magnesia 5 ~ 40 mass parts, primary ammonium phosphate 10 ~ 35 mass parts, borax 2 ~ 15 mass parts, flyash 10 ~ 60 mass parts, quartz sand 10 ~ 60 mass parts, metallic zinc or iron powder 0.3 ~ 1 mass parts, and the component of water 5 ~ 20 mass parts and proportion by weight get each raw material; By reburned magnesia sand milling carefully to 10 ~ 50 μm (particle diameter, rear same), quartz sand, flyash are levigate to 5 ~ 50 μm respectively, and primary ammonium phosphate is levigate to 30 ~ 150 μm, for subsequent use;
The concrete mass parts consumption of each component raw material is arbitrary in embodiment 4 ~ 25, omits;
B, prepare magnesium phosphate cement based porous materials: reheating magnesia, primary ammonium phosphate, borax, flyash, quartz sand and metallic zinc or iron powder are mixed into mixed powder; Mixed powder is put in the container of whipping appts, add water again and start timing while adding water, according to stirring 15s (stirring velocity is 150 revs/min) slowly, stir 1.5min (stirring velocity is 295 revs/min) soon, stop (stopping stirring) 15s, stir the alr mode of 3min (stirring velocity is 295 revs/min) sooner mixed powder is uniformly mixed into slurry with water, by shaping for slurry (shaping test block size can be 300 × 300 × 30mm), namely obtain magnesium phosphate cement based porous materials through natural curing.
Embodiment 28:
A preparation method for magnesium phosphate cement based porous materials, step is:
A, batching and grinding; By reheating magnesia 5 ~ 40 mass parts, primary ammonium phosphate 10 ~ 35 mass parts, borax 2 ~ 15 mass parts, flyash 10 ~ 60 mass parts, quartz sand 10 ~ 60 mass parts, metallic zinc or iron powder 0.3 ~ 1 mass parts, and the component of water 5 ~ 20 mass parts and proportion by weight get each raw material; By reburned magnesia sand milling carefully to 10 ~ 50 μm (particle diameter, rear same), quartz sand, flyash are levigate to 5 ~ 50 μm respectively, and primary ammonium phosphate is levigate to 30 ~ 150 μm, for subsequent use;
The concrete mass parts consumption of each component raw material is arbitrary in embodiment 4 ~ 25, omits;
B, prepare magnesium phosphate cement based porous materials: reheating magnesia, primary ammonium phosphate, borax, flyash, quartz sand and metallic zinc or iron powder are mixed into mixed powder; Mixed powder is put in the container of whipping appts, add water again and start timing while adding water, according to stirring 23s (stirring velocity is 145 revs/min) slowly, stir 2min (stirring velocity is 285 revs/min) soon, stop (stopping stirring) 15s, stir the alr mode of 4min (stirring velocity is 285 revs/min) sooner mixed powder is uniformly mixed into slurry with water, by shaping for slurry (shaping test block size can be 300 × 300 × 30mm), namely obtain magnesium phosphate cement based porous materials through natural curing.
Embodiment 29:
A preparation method for magnesium phosphate cement based porous materials, step is:
A, batching and grinding; By reheating magnesia 5 ~ 40 mass parts, primary ammonium phosphate 10 ~ 35 mass parts, borax 2 ~ 15 mass parts, flyash 10 ~ 60 mass parts, quartz sand 10 ~ 60 mass parts, metallic zinc or iron powder 0.3 ~ 1 mass parts, and the component of water 5 ~ 20 mass parts and proportion by weight get each raw material; By reburned magnesia sand milling carefully to 10 ~ 50 μm (particle diameter, rear same), quartz sand, flyash are levigate to 5 ~ 50 μm respectively, and primary ammonium phosphate is levigate to 30 ~ 150 μm, for subsequent use;
The concrete mass parts consumption of each component raw material is arbitrary in embodiment 4 ~ 25, omits;
B, prepare magnesium phosphate cement based porous materials: reheating magnesia, primary ammonium phosphate, borax, flyash, quartz sand and metallic zinc or iron powder are mixed into mixed powder; Mixed powder is put in the container of whipping appts, add water again and start timing while adding water, according to stirring 15s (stirring velocity is 150 revs/min) slowly, stir 3min (stirring velocity is 275 revs/min) soon, stop (stopping stirring) 15s, stir the alr mode of 4min (stirring velocity is 295 revs/min) sooner mixed powder is uniformly mixed into slurry with water, by shaping for slurry (shaping test block size can be 300 × 300 × 30mm), namely obtain magnesium phosphate cement based porous materials through natural curing.
Embodiment 30:
A preparation method for magnesium phosphate cement based porous materials, step is:
A, batching and grinding; By reheating magnesia 5 ~ 40 mass parts, primary ammonium phosphate 10 ~ 35 mass parts, borax 2 ~ 15 mass parts, flyash 10 ~ 60 mass parts, quartz sand 10 ~ 60 mass parts, metallic zinc or iron powder 0.3 ~ 1 mass parts, and the component of water 5 ~ 20 mass parts and proportion by weight get each raw material; By reburned magnesia sand milling carefully to 10 ~ 50 μm (particle diameter, rear same), quartz sand, flyash are levigate to 5 ~ 50 μm respectively, and primary ammonium phosphate is levigate to 30 ~ 150 μm, for subsequent use;
The concrete mass parts consumption of each component raw material is arbitrary in embodiment 4 ~ 25, omits;
B, prepare magnesium phosphate cement based porous materials: reheating magnesia, primary ammonium phosphate, borax, flyash, quartz sand and metallic zinc or iron powder are mixed into mixed powder, mixed powder is put in the container of whipping appts, add water again and start timing while adding water, according to stirring 15 ~ 30s (stirring velocity is 140 ~ 150 revs/min) slowly, stir 1.5 ~ 3min (stirring velocity is 275 ~ 295 revs/min) soon, stop (stopping stirring) 15s, mixed powder is uniformly mixed into slurry with water by the alr mode stirring 3 ~ 5min (stirring velocity is 275 ~ 295 revs/min) sooner, by shaping for slurry (shaping test block size can be 300 × 300 × 30mm), through natural curing i.e. obtained magnesium phosphate cement based porous materials.
In above-described embodiment: each raw material adopted is commercially available prod.
In above-described embodiment: described quality (weight) part can be all gram or kilogram.
In above-described embodiment: the processing parameter (time, stirring velocity etc.) in each step and each amounts of components numerical value etc. are scope, and any point is all applicable.
The concrete same prior art of technology contents described in content of the present invention and above-described embodiment.
The invention is not restricted to above-described embodiment, all can implement described in content of the present invention and there is described good result.

Claims (8)

1. a magnesium phosphate cement based porous materials, it is characterized in that: by reheating magnesia 5 ~ 40 mass parts, primary ammonium phosphate 10 ~ 35 mass parts, borax 2 ~ 15 mass parts, flyash 10 ~ 60 mass parts, quartz sand 10 ~ 60 mass parts, metallic zinc or iron powder 0.3 ~ 1 mass parts, and the component of water 5 ~ 20 mass parts and the raw material of proportion by weight are through mixing maintenance composition.
2. by magnesium phosphate cement based porous materials described in claim 1, it is characterized in that: by reheating magnesia 20 ~ 30 mass parts, primary ammonium phosphate 20 ~ 30 mass parts, borax 6 ~ 12 mass parts, flyash 30 ~ 60 mass parts, quartz sand 30 ~ 60 mass parts, metallic zinc or iron powder 0.3 ~ 0.8 mass parts, and the component of water 8 ~ 15 mass parts and the raw material of proportion by weight are through mixing maintenance composition.
3. by magnesium phosphate cement based porous materials described in claim 1, it is characterized in that: by reheating magnesia 25 mass parts, primary ammonium phosphate 25 mass parts, borax 10 mass parts, flyash 50 mass parts, quartz sand 50 mass parts, metallic zinc or iron powder 0.6 mass parts, and the component of water 12 mass parts and the raw material of proportion by weight are through mixing maintenance composition.
4. by magnesium phosphate cement based porous materials described in claim 1, it is characterized in that: by reheating magnesia 25 mass parts, primary ammonium phosphate 25 mass parts, borax 10 mass parts, flyash 30 mass parts, quartz sand 20 mass parts, metallic zinc or iron powder 1 mass parts, and the component of water 13 mass parts and the raw material of proportion by weight are through mixing maintenance composition.
5. a preparation method for magnesium phosphate cement based porous materials, is characterized in that step is:
A, batching and grinding; By reheating magnesia 5 ~ 40 mass parts, primary ammonium phosphate 10 ~ 35 mass parts, borax 2 ~ 15 mass parts, flyash 10 ~ 60 mass parts, quartz sand 10 ~ 60 mass parts, metallic zinc or iron powder 0.3 ~ 1 mass parts, and the component of water 5 ~ 20 mass parts and proportion by weight get each raw material; By reburned magnesia sand milling carefully to 10 ~ 50 μm, quartz sand, flyash are levigate to 5 ~ 50 μm respectively, and primary ammonium phosphate is levigate to 30 ~ 150 μm, for subsequent use;
B, prepare magnesium phosphate cement based porous materials: reheating magnesia, primary ammonium phosphate, borax, flyash, quartz sand and metallic zinc or iron powder are mixed into mixed powder; Mixed powder is put in the container of whipping appts, add water again and start timing while adding water, according to stirring 15 ~ 30s slowly, stir 1.5 ~ 3min soon, stop 15s, stir the alr mode of 3 ~ 5min sooner mixed powder is uniformly mixed into slurry with water, slurry is shaping, through natural curing i.e. obtained magnesium phosphate cement based porous materials.
6. by the preparation method of magnesium phosphate cement based porous materials described in claim 5, it is characterized in that: described in step a, batching and grinding replace with: by reheating magnesia 20 ~ 30 mass parts, primary ammonium phosphate 20 ~ 30 mass parts, borax 6 ~ 12 mass parts, flyash 30 ~ 60 mass parts, quartz sand 30 ~ 60 mass parts, metallic zinc or iron powder 0.3 ~ 0.8 mass parts, and the component of water 8 ~ 15 mass parts and proportion by weight get each raw material; By reburned magnesia sand milling carefully to 10 ~ 50 μm, quartz sand, flyash are levigate to 5 ~ 50 μm respectively, and primary ammonium phosphate is levigate to 30 ~ 150 μm, for subsequent use.
7. by the preparation method of magnesium phosphate cement based porous materials described in claim 5, it is characterized in that: described in step a, batching and grinding replace with: by reheating magnesia 25 mass parts, primary ammonium phosphate 25 mass parts, borax 10 mass parts, flyash 50 mass parts, quartz sand 50 mass parts, metallic zinc or iron powder 0.6 mass parts, and the component of water 12 mass parts and proportion by weight get each raw material; By reburned magnesia sand milling carefully to 10 ~ 50 μm, quartz sand, flyash are levigate to 5 ~ 50 μm respectively, and primary ammonium phosphate is levigate to 30 ~ 150 μm, for subsequent use.
8. by the preparation method of magnesium phosphate cement based porous materials described in claim 5, it is characterized in that: described in step a, batching and grinding replace with: by reheating magnesia 25 mass parts, primary ammonium phosphate 25 mass parts, borax 10 mass parts, flyash 30 mass parts, quartz sand 20 mass parts, metallic zinc or iron powder 1 mass parts, and the component of water 13 mass parts and proportion by weight get each raw material; By reburned magnesia sand milling carefully to 10 ~ 50 μm, quartz sand, flyash are levigate to 5 ~ 50 μm respectively, and primary ammonium phosphate is levigate to 30 ~ 150 μm, for subsequent use.
CN201410799954.3A 2014-12-19 2014-12-19 Magnesium phosphate cement-base porous material and preparation method thereof Pending CN104556954A (en)

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CN105731991A (en) * 2016-02-20 2016-07-06 北京工业大学 Modified magnesium phosphate cement and preparing method thereof
CN106927781A (en) * 2017-04-28 2017-07-07 重庆大学 One kind is with CO2Phosphate cement foam concrete for foamed gas and preparation method thereof
CN107417149A (en) * 2017-09-13 2017-12-01 贵州开磷磷石膏综合利用有限公司 A kind of calcium phosphate Si-Mg cement and preparation method thereof
CN110218072A (en) * 2019-05-20 2019-09-10 贵州开磷磷石膏综合利用有限公司 Autoclave aerated concrete building block/plate and preparation method containing new type mortar

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Cited By (6)

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Publication number Priority date Publication date Assignee Title
CN105418050A (en) * 2015-11-02 2016-03-23 卓达新材料科技集团有限公司 Magnesium phosphate floor bearing plate for buildings and preparation method for magnesium phosphate floor bearing plate
CN105731991A (en) * 2016-02-20 2016-07-06 北京工业大学 Modified magnesium phosphate cement and preparing method thereof
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CN106927781A (en) * 2017-04-28 2017-07-07 重庆大学 One kind is with CO2Phosphate cement foam concrete for foamed gas and preparation method thereof
CN107417149A (en) * 2017-09-13 2017-12-01 贵州开磷磷石膏综合利用有限公司 A kind of calcium phosphate Si-Mg cement and preparation method thereof
CN110218072A (en) * 2019-05-20 2019-09-10 贵州开磷磷石膏综合利用有限公司 Autoclave aerated concrete building block/plate and preparation method containing new type mortar

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