CN109320181A - A kind of aerating phosphorus building gypsum insulation blocks and preparation method thereof - Google Patents

A kind of aerating phosphorus building gypsum insulation blocks and preparation method thereof Download PDF

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Publication number
CN109320181A
CN109320181A CN201811049018.5A CN201811049018A CN109320181A CN 109320181 A CN109320181 A CN 109320181A CN 201811049018 A CN201811049018 A CN 201811049018A CN 109320181 A CN109320181 A CN 109320181A
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CN
China
Prior art keywords
building gypsum
aerating
phosphorus building
insulation blocks
phosphorus
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811049018.5A
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Chinese (zh)
Inventor
赵彬宇
赵志曼
全思臣
吴磊
张毅
李丹
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Kunming University of Science and Technology
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Kunming University of Science and Technology
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Priority to CN201811049018.5A priority Critical patent/CN109320181A/en
Publication of CN109320181A publication Critical patent/CN109320181A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • C04B28/145Calcium sulfate hemi-hydrate with a specific crystal form
    • C04B28/147Calcium sulfate hemi-hydrate with a specific crystal form beta-hemihydrate
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/20Mortars, concrete or artificial stone characterised by specific physical values for the density
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/30Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
    • C04B2201/32Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

Abstract

The invention discloses a kind of aerating phosphorus building gypsum insulation blocks and preparation method thereof, aerating phosphorus building gypsum insulation blocks prepared by the present invention are made of the raw material of following mass percent: phosphorus building gypsum 71% ~ 82%, calcium carbonate 4% ~ 6%, aluminum sulfate 7.5% ~ 10%, foam stabilizer 2% ~ 3%, retarder 0.75% ~ 1.5%, water-reducing agent 0.75% ~ 1.5%, chopped strand 1.5% ~ 3%;Aerating phosphorus building gypsum insulation blocks prepared by the present invention; it is excellent in terms of mechanical property and light thermal-insulation; the present invention produces aerating phosphorus building gypsum insulation blocks using the industry by-product gypsum of stockpiling; the present invention is while solving solid waste using protection environment; it is good to produce heat insulation effect; from heavy and light and there is good resistance to compression, cracking resistance building material; there is positive effect in terms of resource-effective and environmental protection; material can largely utilize phosphorus building gypsum; and can be recycled, it is more environmentally-friendly.

Description

A kind of aerating phosphorus building gypsum insulation blocks and preparation method thereof
Technical field
The present invention relates to a kind of aerating phosphorus building gypsum insulation blocks and preparation method thereof, belong to building material technology neck Domain.
Background technique
In China, industry by-product gypsum yield is big, and environmental pollution is serious (such as ardealite), it is therefore desirable to be opened this Hair utilizes.Construction material is produced using phosphorus building gypsum and is applied in engineering currently, the country has begun;Building trade wall Building materials mainly use clay brick, solid block or building-block, these descriptions of materials are single, poor thermal insulation property, and waste Resource, also affects the service performance in house.
Common clay brick individual is small, and quality is big;Air-entrained concrete building block individual is big, and quality is big;Building-block individual is big, matter Amount is light but dismounting castoff regenerative utilization is poor, and thermal coefficient is big, and cost is higher.
Summary of the invention
One of the objects of the present invention is to provide a kind of aerating phosphorus building gypsum insulation blocks, the present invention utilizes the work stored up Industry by-product gypsum produces aerating phosphorus building gypsum insulation blocks, and the present invention is raw while solving solid waste using protection environment Output heat insulation effect is good, from heavy and light and has good resistance to compression, cracking resistance building material, in terms of resource-effective and environmental protection With positive effect.
The technical scheme is that a kind of aerating phosphorus building gypsum insulation blocks, by the raw material of following mass percent It is made: phosphorus building gypsum 71% ~ 82%, calcium carbonate 4% ~ 6%, aluminum sulfate 7.5% ~ 10%, foam stabilizer 2% ~ 3%, retarder 0.75% ~ 1.5%, water-reducing agent 0.75% ~ 1.5%, chopped strand 1.5% ~ 3%.
The phosphorus building gypsum is using β semi-hydrated gypsum as the construction material of major ingredient.
The second object of the present invention is to provide a kind of preparation method of aerating phosphorus building gypsum insulation blocks, specific steps It is as follows:
(1) first by 30% ~ 35% water of phosphorus building gypsum dosage, 0.75% ~ 1.5% water-reducing agent, 0.75% ~ 1.5% retarder Be mixed and stirred for uniformly, 71% ~ 82% phosphorus building gypsum be then added into solution, with the revolving speed of 90 ~ 110r/min stirring 25 ~ After 35s, then with revolving speed 25 ~ 35s of stirring of 290 ~ 310r/min, obtain mixed solution I;
(2) 4% ~ 6% calcium carbonate, 7.5% ~ 10% aluminum sulfate are sequentially added into the mixed solution of step (1), then with 90 ~ The revolving speed of 110r/min stirs 30 ~ 45s, then stirs 25 ~ 35s with the revolving speed of 290-310r/min, obtains mixed solution II;
(3) 2% ~ 3% foam stabilizer is added into the mixed solution II of step (2), with the revolving speed of 90 ~ 110r/min stirring 30 ~ 45s obtains mixed solution III;
(4) 1.5% ~ 3% chopped strand is added into the mixed solution III of step (3), stirs 40 with the revolving speed of 90 ~ 110r/min 55 ~ 65s is stirred with the revolving speed of 290 ~ 310r/min again after ~ 50s, obtains slurry after mixing evenly;
(5) slurry of step (4) is poured into mold, is demoulded after spontaneously drying 110 ~ 130min to get aerating phosphorus paring stone is arrived Cream insulation blocks.
The size of step (5) grinding tool is 600mm × 240mm × 300mm.
The water-reducing agent is polycarboxylic acids.
The retarder is citric acid or tartaric acid.
The foam stabilizer is silicone resin polyethers type of latex type.
The chopped strand is polypropylene fibre or glass fibre.
The length of the chopped strand is 6 ~ 12mm, and diameter is 18 ~ 45 μm.
Aerating phosphorus building gypsum insulation blocks prepared by the present invention can be directly used for filling wall.
The beneficial effects of the present invention are:
(1) present invention uses phosphorus building gypsum as cementitious material, and the modified aerating phosphorus building gypsum strength of materials is higher, reachable 3 ~ 7MPa can be used for filled wall material.
(2) aerating phosphorus building gypsum insulation blocks prepared by the present invention do not crack, due to joined chopped strand, Ke Yiyou Effect inhibits the problem of crack.
(3) preparation method water consumption of the invention is few, pollution-free, is easy to construct, and meets the requirement of green construction.
(4) the water resistant property of the present invention is more preferable, and coefficient of softing is 0.4 ~ 0.5, and when encountering rain erosion, intensity has small Width reduces, but material loosely will not peel off or even lose intensity since water erosion acts on.
(5) aerating phosphorus building gypsum insulation blocks of the invention are reusable, and the material of no adding of fiber is being removed Afterwards, it can be crushed, dewatered drying processing is carried out at 150 ~ 170 DEG C, that is, can be recycled, and performance is stablized.
(6) low in raw material price of the present invention, materials are easy.
Aerating phosphorus building gypsum insulation blocks prepared by the present invention, it is excellent in terms of mechanical property and light thermal-insulation, it is thermally conductive Coefficient is 0.18~0.21W/mk, and the building block of general 80mm thickness is equivalent to the solid brick insulation ability of 240mm thickness, And the building block has respiratory function, can absorb excess humidity in room, can also release moisture again when moisture reduces and adjust Indoor air humidity.Gas forming amount is big after addition calcium carbonate, aluminum sulfate and foam stabilizer and gas-forming property is good, and apparent density reaches 650kg/ m3Left and right.The material can largely utilize phosphorus building gypsum, and can be recycled, more environmentally-friendly.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
With reference to embodiments, technical solution of the present invention is further discussed in detail, but protection scope of the present invention It is not limited thereto.
Embodiment 1: the present embodiment prepares aerating phosphorus building gypsum using the taken phosphorus building gypsum of Yunnan phosphate fertilizer plant as raw material The match ratio of insulation blocks is as follows:
Specific step is as follows for preparation method as shown in Figure 1::
(1) first by 30% water of phosphorus building gypsum dosage, 0.75% polycarboxylate water-reducer, 0.75% retarder lemon acid-mixed Merging stirs evenly, and 71% phosphorus building gypsum is then added into solution, after stirring 25s with the revolving speed of 90r/min, then with 290r/ The revolving speed of min stirs 25s, obtains mixed solution I;
(2) 4% calcium carbonate, 7.5% aluminum sulfate are sequentially added into the mixed solution of step (1), are then turned with 90r/min Speed stirring 30s, then 25s is stirred with the revolving speed of 290r/min, obtain mixed solution II;
(3) 2% foam stabilizer silicone resin polyethers lotion is added into the mixed solution II of step (2), is stirred with the revolving speed of 90r/min 30s is mixed, mixed solution III is obtained;
(4) 1.5% polystyrene fiber is added into the mixed solution III of step (3), the length of polystyrene fiber is 6mm, Diameter is 18 ~ 45 μm, stirs 55s again after stirring 40s with the revolving speed of 90r/min with the revolving speed of 290r/min, after mixing evenly To slurry;
(5) slurry of step (4) is poured into mold, the size of mold is that 600mm × 240mm × 300mm is spontaneously dried It is demoulded after 110min to get aerating phosphorus building gypsum insulation blocks are arrived.
The modified aerating phosphorus building gypsum insulation blocks compression strength of No. 1 phosphorus building gypsum is up to 3.5 ~ 4.5MPa after drying, Masonry for general filled wall.
Embodiment 2: using the taken phosphorus building gypsum of Yunnan phosphate fertilizer plant as raw material,
Match ratio is as follows:
Specific step is as follows for preparation method:
(1) first by 35% water of phosphorus building gypsum dosage, 1.5% polycarboxylate water-reducer, 1.5% retarder citric acid mix And stir evenly, 82% phosphorus building gypsum is then added into solution, after stirring 35s with the revolving speed of 110r/min, then with 310r/ The revolving speed of min stirs 35s, obtains mixed solution I;
(2) 6% calcium carbonate, 10% aluminum sulfate are sequentially added into the mixed solution of step (1), are then turned with 110r/min Speed stirring 45s, then 35s is stirred with the revolving speed of 310r/min, obtain mixed solution II;
(3) 3% foam stabilizer silicone resin polyethers lotion is added into the mixed solution II of step (2), is stirred with the revolving speed of 110r/min 45s is mixed, mixed solution III is obtained;
(4) it is added 3% glass fibre into the mixed solution III of step (3), the length of glass fibre is 12mm, diameter is 18 ~ 45 μm, 65s is stirred with the revolving speed of 310r/min again after stirring 50s with the revolving speed of 110r/min, obtains slurry after mixing evenly;
(5) slurry of step (4) is poured into mold, the size of mold is that 600mm × 240mm × 300mm is spontaneously dried It is demoulded after 130min to get aerating phosphorus building gypsum insulation blocks are arrived.
The modified aerating phosphorus building gypsum insulation blocks compression strength of No. 2 phosphorus building gypsums can be used up to 4 ~ 5MPa after drying In the masonry of general filled wall.
Embodiment 3: using the taken phosphorus building gypsum of Yunnan phosphate fertilizer plant as raw material,
Match ratio is as follows:
Specific step is as follows for preparation method:
(1) first by 32% water of phosphorus building gypsum dosage, 1% polycarboxylate water-reducer, 1% retarder tartaric acid mix and stir It mixes uniformly, 80% phosphorus building gypsum is then added into solution, after stirring 30s with the revolving speed of 100r/min, then with 300r/min's Revolving speed stirs 30s, obtains mixed solution I;
(2) 5% calcium carbonate, 8% aluminum sulfate are sequentially added into the mixed solution of step (1), are then turned with 100r/min Speed stirring 40s, then 30s is stirred with the revolving speed of 300r/min, obtain mixed solution II;
(3) 2.5% foam stabilizer silicone resin polyethers lotion is added, into the mixed solution II of step (2) with the revolving speed of 100r/min 40s is stirred, mixed solution III is obtained;
(4) it is added 2% glass fibre into the mixed solution III of step (3), the length of glass fibre is 10mm, diameter is 18 ~ 45 μm, 50s is stirred with the revolving speed of 300r/min again after stirring 45s with the revolving speed of 100r/min, obtains slurry after mixing evenly;
(5) slurry of step (4) is poured into mold, the size of mold is that 600mm × 240mm × 300mm is spontaneously dried It is demoulded after 120min to get aerating phosphorus building gypsum insulation blocks are arrived.
The modified aerating phosphorus building gypsum insulation blocks compression strength of No. 3 phosphorus building gypsums after drying up to 3.5 ~ 4.5MPa can be used for the masonry of general filled wall.
Embodiment 4: using the taken phosphorus building gypsum of Yunnan phosphate fertilizer plant as raw material,
Match ratio is as follows:
Specific step is as follows for preparation method:
(1) first by 32% water of phosphorus building gypsum dosage, 1% polycarboxylate water-reducer, 1% retarder tartaric acid mix and stir It mixes uniformly, 80% phosphorus building gypsum is then added into solution, after stirring 30s with the revolving speed of 100r/min, then with 300r/min's Revolving speed stirs 30s, obtains mixed solution I;
(2) 5% calcium carbonate, 8% aluminum sulfate are sequentially added into the mixed solution of step (1), are then turned with 100r/min Speed stirring 40s, then 30s is stirred with the revolving speed of 300r/min, obtain mixed solution II;
(3) 2.5% foam stabilizer silicone resin polyethers lotion is added, into the mixed solution II of step (2) with the revolving speed of 100r/min 40s is stirred, mixed solution III is obtained;
(4) mixed solution III of step (3) is poured into mold, the size of mold is 600mm × 240mm × 300mm naturally dry It is demoulded after dry 120min to get aerating phosphorus building gypsum insulation blocks are arrived.
The modified aerating phosphorus building gypsum insulation blocks compression strength of No. 4 phosphorus building gypsums is 2 ~ 3MPa after drying, compared to real Applying example 3 and joined the compression strength of the insulation blocks after chopped strand reduces, therefore the present invention is added chopped strand and enhances resistance to compression Intensity.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (9)

1. a kind of aerating phosphorus building gypsum insulation blocks, which is characterized in that be made of the raw material of following mass percent: phosphorus building Gypsum 71% ~ 82%, calcium carbonate 4% ~ 6%, aluminum sulfate 7.5% ~ 10%, foam stabilizer 2% ~ 3%, retarder 0.75% ~ 1.5%, water-reducing agent 0.75% ~ 1.5%, 1.5% ~ 3% chopped strand.
2. aerating phosphorus building gypsum insulation blocks according to claim 1, it is characterised in that: the phosphorus building gypsum be with β semi-hydrated gypsum is the construction material of major ingredient.
3. aerating phosphorus building gypsum insulation blocks according to claim 1, it is characterised in that: 1.5% ~ 3% is added in raw material Chopped strand, chopped strand be polypropylene fibre or glass fibre.
4. the preparation method of aerating phosphorus building gypsum insulation blocks described in claim 1 ~ 3, which is characterized in that specific steps are such as Under:
(1) first by 30% ~ 35% water of phosphorus building gypsum dosage, 0.75% ~ 1.5% water-reducing agent, 0.75% ~ 1.5% retarder Be mixed and stirred for uniformly, 71% ~ 82% phosphorus building gypsum be then added into solution, with the revolving speed of 90 ~ 110r/min stirring 25 ~ After 35s, then with revolving speed 25 ~ 35s of stirring of 290 ~ 310r/min, obtain mixed solution I;
(2) 4% ~ 6% calcium carbonate, 7.5% ~ 10% aluminum sulfate are sequentially added into the mixed solution of step (1), then with 90 ~ The revolving speed of 110r/min stirs 30 ~ 45s, then stirs 25 ~ 35s with the revolving speed of 290-310r/min, obtains mixed solution II;
(3) 2% ~ 3% foam stabilizer is added into the mixed solution II of step (2), with the revolving speed of 90 ~ 110r/min stirring 30 ~ 45s obtains mixed solution III;
(4) 1.5% ~ 3% chopped strand is added into the mixed solution III of step (3), stirs 40 with the revolving speed of 90 ~ 110r/min 55 ~ 65s is stirred with the revolving speed of 290 ~ 310r/min again after ~ 50s, obtains slurry after mixing evenly;
(5) slurry of step (4) is poured into mold, is demoulded after spontaneously drying 110 ~ 130min to get aerating phosphorus paring stone is arrived Cream insulation blocks.
5. the preparation method of aerating phosphorus building gypsum insulation blocks according to claim 4, it is characterised in that: the step (5) size of mold is 600mm × 240mm × 300mm.
6. the preparation method of aerating phosphorus building gypsum insulation blocks according to claim 4, it is characterised in that: the diminishing Agent is polycarboxylate water-reducer.
7. the preparation method of aerating phosphorus building gypsum insulation blocks according to claim 4, it is characterised in that: the slow setting Agent is citric acid or tartaric acid.
8. the preparation method of aerating phosphorus building gypsum insulation blocks according to claim 4, it is characterised in that: the foam stabilizing Agent is silicone resin polyethers type of latex type.
9. the preparation method of aerating phosphorus building gypsum insulation blocks according to claim 4, it is characterised in that: described to be chopped The length of fiber is 6 ~ 12mm, and diameter is 18 ~ 45 μm.
CN201811049018.5A 2018-09-10 2018-09-10 A kind of aerating phosphorus building gypsum insulation blocks and preparation method thereof Pending CN109320181A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109987914A (en) * 2019-05-15 2019-07-09 昆明市建筑设计研究院股份有限公司 A kind of ardealite insulation blocks and its preparation process

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Publication number Priority date Publication date Assignee Title
CN109987914A (en) * 2019-05-15 2019-07-09 昆明市建筑设计研究院股份有限公司 A kind of ardealite insulation blocks and its preparation process

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