CN109232018A - A kind of foamed cement and preparation method thereof - Google Patents
A kind of foamed cement and preparation method thereof Download PDFInfo
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- CN109232018A CN109232018A CN201811043476.8A CN201811043476A CN109232018A CN 109232018 A CN109232018 A CN 109232018A CN 201811043476 A CN201811043476 A CN 201811043476A CN 109232018 A CN109232018 A CN 109232018A
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- parts
- foamed cement
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- agent
- flyash
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Classifications
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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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
- C04B38/106—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam by adding preformed foams
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of foamed cements, its raw material includes: 60-70 parts of ordinary portland cement, 10-15 parts of flyash, 2-3 parts of dodecyl sodium sulfate by weight, 0.5-1 parts of Tea Saponin, 0.5-0.7 parts of foam stabilizer, 1-1.5 parts of waterproofing agent, 0.05-0.1 parts of water-reducing agent, 1-3 parts of reinforcing agent, 32-39 parts of water, wherein reinforcing agent is polypropylene fibre, basalt fibre and carbon fiber.The invention also discloses the preparation method of above-mentioned foamed cement, include the following steps: that dodecyl sodium sulfate, Tea Saponin and water, which are mixed foaming, obtains foam solution；Ordinary portland cement, flyash, foam stabilizer, waterproofing agent, water-reducing agent, reinforcing agent are mixed, foam solution is added and mixes, casting, maintenance obtains foamed cement.The present invention has good waterproofness, intensity and cracking resistance.
Description
Technical field
The present invention relates to cement technology fields more particularly to a kind of foamed cement and preparation method thereof.
Background technique
Foamed cement is that foaming agent is mechanically sufficiently foamed by the foamed system of foaming machine, and by foam and water
Then mud slurry uniform mixing carries out cast-in-place construction or mold molding by the pumping system of foaming machine, is formed through natural curing
A kind of novel light insulation material containing a large amount of sealed porositys.It makes concrete light and thermal insulation separation thermalization.But it sends out
There are a large amount of closed gaps in soaked mud, keep its intensity not high.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of foamed cement and preparation method thereof, this hairs
It is bright that there is good waterproofness, intensity and cracking resistance.
A kind of foamed cement proposed by the present invention, raw material include: 60-70 parts of ordinary portland cement by weight, powder
10-15 parts of coal ash, 2-3 parts of dodecyl sodium sulfate, 0.5-1 parts of Tea Saponin, 0.5-0.7 parts of foam stabilizer, 1-1.5 parts of waterproofing agent,
0.05-0.1 parts of water-reducing agent, 1-3 parts of reinforcing agent, 32-39 parts of water, wherein reinforcing agent is polypropylene fibre, basalt fibre and carbon
Fiber.
Preferably, the weight ratio of polypropylene fibre, basalt fibre and carbon fiber is 2-4:0.5-1:0.6-0.8.
Preferably, the length of polypropylene fibre, basalt fibre and carbon fiber is 4-5mm.
Preferably, the specific surface area of flyash is 800-1000m2/kg。
Preferably, foam stabilizer is lauroyl diethanolamine and Arabic gum.
Preferably, waterproofing agent is methyl silicon sodium alcoholate and waterglass.
Preferably, water-reducing agent is di-2-ethylhexylphosphine oxide naphthalene sulfonic acids disodium.
Preferably, the weight ratio of lauroyl diethanolamine and Arabic gum is 1:0.5-1.
Preferably, the weight ratio of methyl silicon sodium alcoholate and waterglass is 2-3:0.5-1.
The invention also discloses the preparation method of above-mentioned foamed cement, include the following steps: dodecyl sodium sulfate, tea
Saponin and water mix foaming and obtain foam solution；By ordinary portland cement, flyash, foam stabilizer, waterproofing agent, water-reducing agent, increasing
Strong agent mixes, and foam solution is added and mixes, casting, maintenance obtains foamed cement, wherein the temperature of water is 40-45 DEG C.
The present invention selects polypropylene fibre, basalt fibre and carbon fiber to cooperate, and can increase the strong of foamed cement
Degree, polypropylene fibre, basalt fibre and carbon fiber are cooperated with suitable proportion and suitable length and cement, can be increased
Add intensity and cracking resistance of the invention；It is suitable for that the flyash of specific surface area and cement cooperate, is filled in cement, reduces
Porosity of the invention improves structure compactness of the invention, to further increase intensity of the invention, dodecyl sodium sulfonate
Sodium, Tea Saponin cooperate, and the surface tension of foamed cement can be effectively reduced, and lauroyl diethanolamine and Arabic gum is cooperated to make
Increase the stability of foam so that foam becomes flexible for foam stabilizer, extend the service life of foam, foamed cement is avoided to collapse mould；
Methyl silicon sodium alcoholate, waterglass, di-2-ethylhexylphosphine oxide naphthalene sulfonic acids disodium are cooperated with proper ratio, and the calcium in waterglass and cement generates
Precipitated calcium silicate, while waterglass is crystallized in cement due to dehydration, calcium silicates and Crystallization Plugging reach in the micropore of cement
The effect of waterproof, methyl silicon sodium alcoholate can form waterproof membrane in cement surface, achieve the effect that waterproof, di-2-ethylhexylphosphine oxide naphthalene sulfonic acids two
Sodium can reduce the dosage of water, and can further increase intensity of the invention, and above-mentioned each substance cooperates so that the present invention has
There are good waterproofness, intensity and cracking resistance.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of foamed cement, raw material include: 65 parts of ordinary portland cement by weight, and 12.5 parts of flyash, 12
2.5 parts of sodium alkyl sulfonate, 0.75 part of Tea Saponin, 0.6 part of foam stabilizer, 1.25 parts of waterproofing agent, 0.075 part of water-reducing agent, reinforcing agent 2
Part, 35 parts of water, wherein reinforcing agent is polypropylene fibre, basalt fibre and carbon fiber.
The preparation method of above-mentioned foamed cement includes the following steps: to mix in dodecyl sodium sulfate, Tea Saponin and water and send out
Bubble obtains foam solution；Ordinary portland cement, flyash, foam stabilizer, waterproofing agent, water-reducing agent, reinforcing agent are mixed, bubble is added
Foam solution mixes, casting, and maintenance obtains foamed cement, wherein the temperature of water is 42 DEG C.
Embodiment 2
A kind of foamed cement, raw material include: 60 parts of ordinary portland cement by weight, and 15 parts of flyash, dodecane
2 parts of base sodium sulfonate, 1 part of Tea Saponin, 0.5 part of foam stabilizer, 1.5 parts of waterproofing agent, 0.05 part of di-2-ethylhexylphosphine oxide naphthalene sulfonic acids disodium, reinforcing agent
3 parts, 32 parts of water, wherein reinforcing agent is polypropylene fibre, basalt fibre and carbon fiber, wherein polypropylene fibre, basalt
The weight ratio of fiber and carbon fiber is 4:0.5:0.8；
The length of polypropylene fibre, basalt fibre and carbon fiber is 4mm.
The preparation method of above-mentioned foamed cement includes the following steps: to mix in dodecyl sodium sulfate, Tea Saponin and water and send out
Bubble obtains foam solution；Ordinary portland cement, flyash, foam stabilizer, waterproofing agent, water-reducing agent, reinforcing agent are mixed, bubble is added
Foam solution mixes, casting, and maintenance obtains foamed cement, wherein the temperature of water is 45 DEG C.
Embodiment 3
A kind of foamed cement, raw material include: 70 parts of ordinary portland cement by weight, and 10 parts of flyash, dodecane
3 parts of base sodium sulfonate, 0.5 part of Tea Saponin, 0.7 part of foam stabilizer, 1 part of waterproofing agent, 0.1 part of di-2-ethylhexylphosphine oxide naphthalene sulfonic acids disodium, reinforcing agent 1
Part, 39 parts of water, wherein reinforcing agent is polypropylene fibre, basalt fibre and carbon fiber, wherein polypropylene fibre, basalt are fine
The weight ratio of peacekeeping carbon fiber is 2:1:0.6；
The length of polypropylene fibre, basalt fibre and carbon fiber is 5mm；
The specific surface area of flyash is 800m2/kg；
Foam stabilizer is lauroyl diethanolamine and Arabic gum, wherein the weight of lauroyl diethanolamine and Arabic gum
Than for 1:1；
Waterproofing agent is methyl silicon sodium alcoholate and waterglass, wherein the weight ratio of methyl silicon sodium alcoholate and waterglass is 2:1.
The preparation method of above-mentioned foamed cement includes the following steps: to mix in dodecyl sodium sulfate, Tea Saponin and water and send out
Bubble obtains foam solution；Ordinary portland cement, flyash, foam stabilizer, waterproofing agent, water-reducing agent, reinforcing agent are mixed, bubble is added
Foam solution mixes, casting, and maintenance obtains foamed cement, wherein the temperature of water is 40 DEG C.
Embodiment 4
A kind of foamed cement, raw material include: 62 parts of ordinary portland cement by weight, and 14 parts of flyash, dodecane
2.2 parts of base sodium sulfonate, 0.8 part of Tea Saponin, 0.55 part of foam stabilizer, 1.3 parts of waterproofing agent, 0.06 part of di-2-ethylhexylphosphine oxide naphthalene sulfonic acids disodium,
2.5 parts of reinforcing agent, 34 parts of water, wherein reinforcing agent is polypropylene fibre, basalt fibre and carbon fiber, wherein polypropylene is fine
The weight ratio of dimension, basalt fibre and carbon fiber is 3.5:0.7:0.75；
The length of polypropylene fibre, basalt fibre and carbon fiber is 4.3mm；
The specific surface area of flyash is 1000m2/kg；
Foam stabilizer is lauroyl diethanolamine and Arabic gum, wherein the weight of lauroyl diethanolamine and Arabic gum
Than for 1:0.5；
Waterproofing agent is methyl silicon sodium alcoholate and waterglass, wherein the weight ratio of methyl silicon sodium alcoholate and waterglass is 3:0.5.
The preparation method of above-mentioned foamed cement includes the following steps: to mix in dodecyl sodium sulfate, Tea Saponin and water and send out
Bubble obtains foam solution；Ordinary portland cement, flyash, foam stabilizer, waterproofing agent, water-reducing agent, reinforcing agent are mixed, bubble is added
Foam solution mixes, casting, and maintenance obtains foamed cement, wherein the temperature of water is 43 DEG C.
Embodiment 5
A kind of foamed cement, raw material include: 68 parts of ordinary portland cement by weight, and 11 parts of flyash, dodecane
2.8 parts of base sodium sulfonate, 0.6 part of Tea Saponin, 0.65 part of foam stabilizer, 1.1 parts of waterproofing agent, 0.08 part of di-2-ethylhexylphosphine oxide naphthalene sulfonic acids disodium,
1.5 parts of reinforcing agent, 36 parts of water, wherein reinforcing agent is polypropylene fibre, basalt fibre and carbon fiber, wherein polypropylene is fine
The weight ratio of dimension, basalt fibre and carbon fiber is 2.5:0.9:0.65；
The length of polypropylene fibre, basalt fibre and carbon fiber is 4.7mm；
The specific surface area of flyash is 900m2/kg；
Foam stabilizer is lauroyl diethanolamine and Arabic gum, wherein the weight of lauroyl diethanolamine and Arabic gum
Than for 1:0.7；
Waterproofing agent is methyl silicon sodium alcoholate and waterglass, wherein the weight ratio of methyl silicon sodium alcoholate and waterglass is 2.5:0.7.
The preparation method of above-mentioned foamed cement includes the following steps: to mix in dodecyl sodium sulfate, Tea Saponin and water and send out
Bubble obtains foam solution；Ordinary portland cement, flyash, foam stabilizer, waterproofing agent, water-reducing agent, reinforcing agent are mixed, bubble is added
Foam solution mixes, casting, and maintenance obtains foamed cement, wherein the temperature of water is 41 DEG C.
Performance detection is carried out to embodiment 1-5, result is as follows:
Intensity with higher of the invention as can be seen from the above table, and there is good waterproofness and heat insulating ability.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of foamed cement, which is characterized in that its raw material includes: 60-70 parts of ordinary portland cement by weight, flyash
10-15 parts, 2-3 parts of dodecyl sodium sulfate, 0.5-1 parts of Tea Saponin, 0.5-0.7 parts of foam stabilizer, 1-1.5 parts of waterproofing agent, diminishing
0.05-0.1 parts of agent, 1-3 parts of reinforcing agent, 32-39 parts of water, wherein reinforcing agent is polypropylene fibre, basalt fibre and carbon fiber
Dimension.
2. foamed cement according to claim 1, which is characterized in that the weight of polypropylene fibre, basalt fibre and carbon fiber
Amount is than being 2-4:0.5-1:0.6-0.8.
3. foamed cement according to claim 1 or claim 2, which is characterized in that polypropylene fibre, basalt fibre and carbon fiber
Length is 4-5mm.
4. any one of -3 foamed cement according to claim 1, which is characterized in that the specific surface area of flyash is 800-
1000m2/kg。
5. any one of -4 foamed cement according to claim 1, which is characterized in that foam stabilizer is lauroyl diethanolamine and Ah
Draw primary glue.
6. any one of -5 foamed cement according to claim 1, which is characterized in that waterproofing agent is methyl silicon sodium alcoholate and water glass
Glass.
7. any one of -6 foamed cement according to claim 1, which is characterized in that water-reducing agent is di-2-ethylhexylphosphine oxide naphthalene sulfonic acids two
Sodium.
8. foamed cement according to claim 5, which is characterized in that the weight ratio of lauroyl diethanolamine and Arabic gum is
1:0.5-1.
9. foamed cement according to claim 6, which is characterized in that the weight ratio of methyl silicon sodium alcoholate and waterglass is 2-3:
0.5-1。
10. a kind of preparation method of the foamed cement as described in claim any one of 1-9, which comprises the steps of:
Dodecyl sodium sulfate, Tea Saponin and water are mixed into foaming and obtain foam solution；By ordinary portland cement, flyash, foam stabilizing
Agent, waterproofing agent, water-reducing agent, reinforcing agent mix, and foam solution is added and mixes, casting, maintenance obtains foamed cement, wherein
The temperature of water is 40-45 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811043476.8A CN109232018A (en) | 2018-09-07 | 2018-09-07 | A kind of foamed cement and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811043476.8A CN109232018A (en) | 2018-09-07 | 2018-09-07 | A kind of foamed cement and preparation method thereof |
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Application publication date: 20190118 |
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