CN110218032A - A kind of high-strength heat preservation waterproof foam concrete and preparation method thereof - Google Patents
A kind of high-strength heat preservation waterproof foam concrete and preparation method thereof Download PDFInfo
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- CN110218032A CN110218032A CN201910468008.3A CN201910468008A CN110218032A CN 110218032 A CN110218032 A CN 110218032A CN 201910468008 A CN201910468008 A CN 201910468008A CN 110218032 A CN110218032 A CN 110218032A
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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
-
- 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
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- 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
Abstract
The present invention discloses a kind of high-strength heat preservation waterproof foam concrete and preparation method thereof.The concrete includes following component by mass: cement 1.5-4.0kg, fluidize reinforcing agent 1.0-2.5 kg, flyash 0-2 kg, sand 0.5-2.5 kg, water 1.5-3.5 kg, foam group 150-300g, waterproof material 0-90 g, compound insulating material 0-90 g, foam stabiliser 0-10g, water-reducing agent 0-8g；The foam group is foamed by high-performance animal protein modified foaming agent.This light foam concrete has the characteristics that low water absorption rate, good heat insulating, intensity are high, fluidity is big, durable, at low cost and convenient for construction, it is particularly suitable for city to have stable political situation the fields such as the backfill of the complex regions such as abutment brokeback, piping lane/road, tunnel and coal mine and bed course, thermal insulation of roof and waterproof in road engineering, belongs to the foam concrete of a kind of novel light, big fluidised form and function admirable.
Description
Technical field
The present invention relates to the complexity portions such as abutment brokeback, piping lane, tunnel and coal mine in construction material and municipal administration and road engineering
Position backfill and the fields such as bed course, thermal insulation of roof and waterproof, and in particular to a kind of high-strength heat preservation waterproof foam concrete and its system
Preparation Method belongs to a kind of novel, lightweight, big fluidised form and function admirable light foam concrete.
Background technique
High-strength heat preservation waterproof foam concrete belongs to that lightweight, high-strength, porous foam is native, is according to foam concrete is defined
Foam is made in the foamed equipment of foaming agent, foam is added to by cement, aggregate, admixture, multiple functions additive and water
Deng in slurry made of by a certain percentage, adapted varieties and volume thermal-insulating waterproof agent are added in whipping process, be mixed,
Pour light microporous concrete made of the processes such as forming, maintenance.Foam concrete develops after physical blowing, pumping lightweight
The four-stages such as soil, chemical blowing and composite foam concrete, at present just towards low bulk density, big fluidised form, low water suction, insulation
Develop with directions such as high-performance, obtains foam concrete in fields such as construction wall, roof heat insulation, pile foundation protection and building aseismicities
To concern.
Since foam concrete introduces a large amount of bubbles in the production process, Yi Zengjia matrix water absorption rate reduces later strength,
Because foam concrete hole is uneven, open pores are more, waterproof, thermal insulation property are reduced.It is continuous with national building energy conservation
Recommend, many external walls, roofing is higher to performance requirements such as its thermal-insulating waterproofs, improves the heat-insulated of external wall and roofing
Attribute can substantially reduce the energy consumption of building itself.Foam concrete is often difficult to take into account power during realizing heat-insulated at this stage
Performance and waterproof performance are learned, the intensity of foam concrete is improved in the case where not increasing bulk density, ensuring higher porosity and is prevented
It is aqueous, reduce thermal coefficient be very it is necessary to.
CN106966659B discloses a kind of water-fast crack resistance type foam concrete and preparation method thereof, by following parts by weight
Raw material mixing mixing form: 220 350 parts of cement, 90 180 parts of microballon, 16 parts of elastic granule, palm silk 0.30 0.45 parts,
60 160 parts of water, 29 parts of water resisting admixture and foam.The invention has the characteristics that: using industrial by-products or mine tailing, give up
It is mixed to not only increase foam using the multiple dimensioned toughening principle of elastic particle and fiber composite for the raw materials such as rubber powder and palm silk
The intensity and cracking resistance for coagulating soil, are also conducive to utilization of waste as resource；The water resisting admixture and other materials compatibility of use
It is good, effectively improve the water-fast and endurance quality of foam concrete；The foam that made exquisiteness is uniform, stability is good, improves
The impervious and thermal property of foam concrete is suitable for construction wall and roof heat insulation and weak soil and high water level local highway
Roadbed backfilling material.
But in the patent rubber powder foam concrete slurry be distributed there are non-uniform phenomenon and rubber powder volume it is bigger
Floating situation is more serious, interconnected pore, a large amount of bubble floatings occurs, and matrix is layered so that mechanical property is weakened.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of high-strength heat preservation waterproof foam concrete and
Preparation method can be used for the backfill of external wall, roofing and all kinds of underground engineerings, compared with traditional foam concrete, this
Invention improves thermal-insulating waterproof performance and physical and mechanical property in the case where not improving foam concrete bulk density, and guarantees to close
Suitable porosity and stability, improve construction efficiency and economic benefit.
A kind of high-strength heat preservation waterproof foam concrete, including following component by mass: cement 1.5-4.0kg, stream
Change reinforcing agent 1.0-2.5 kg, flyash 0-2 kg, sand 0.5-2.5 kg, water 1.5-3.5 kg, foam group 150-300g, waterproof
Material 25-90 g, compound insulating material 25-90 g, foam stabiliser 0-10g, water-reducing agent 0-8g；The foam group is by animal egg
White modified foaming agent foams；The compound insulating material is combined by rubber powder, light-burning magnesium powder and calcium powder, the rubber
The mixing mass ratio of powder, light-burning magnesium powder and calcium powder is 1:(0-0.2): (0-0.5).
It is that the waterproof material is combined by waterproofing agent of organosilicon, calcium stearate and zinc stearate, institute as improved
The mixing mass ratio for stating waterproofing agent of organosilicon, calcium stearate and zinc stearate is 1:(1 ~ 1.3): (0.3 ~ 0.7).
It is that the fluidisation reinforcing agent is that silicon ash and slag powders are combined, and silicon ash has concrete strength as improved
The effect of consistency is improved, increases, slag powders, which have, to be improved mobility, reduces the heat of hydration, improve concrete strength, improve coagulation
The mixing mass ratio of the function of soil microstructure, the silicon ash and slag powders is 1:0 ~ 0.8；It is aqueous in the fluidisation reinforcing agent
Rate is 0.2%, fineness 5.4.
It is that the foam stabiliser is higher alcohols Composite foam stabilizer as improved, the higher alcohols are compound
Foam stabilizer is combined by hexadecanol, lauryl alcohol, n-butanol and guar gum, mixing mass ratio be followed successively by 1:0.3 ~ 0.5:0.2 ~
0.3: 0.2~0.4。
Step 1 the preparation method of above-mentioned high-strength heat preservation waterproof foam concrete takes 35 parts of water, sequentially add 5 portions of animals
Albumen, 10 parts of lauryl sodium sulfate, at the uniform velocity stirring obtains stoste up to mixed liquor clear at room temperature, takes 35g former
Liquid, as foaming group after 40 times of dilution；Step 2, by cement, fluidisation reinforcing agent, waterproof material, compound insulating material and water-reducing agent
It sequentially adds and is stirred evenly in foam group, add water and be again stirring for, to ensure that each composition material is evenly dispersed in slurry；Step
3, the foam that regulation coefficient of foaming and weight are prepared by foaming agent is mixed in the slurry being stirred, and is uniformly mixed, is repeatedly measured
The through slurry wet density of slurry wet density reaches 700 ± 50 g/L of standard to get foam concrete.
Mould is built up in use, foam concrete slurry is poured, " air bubble mix light-textured soil is filled out with reference to CJJT 177-2012
Build engineering technology regulation ", JGJ 70-2009 " building mortar basic performance tests method ", JC/T985-2005 " ground cement
Based self-leveling mortar ", the specification such as GB/T 1596-2005 " for the flyash in cement and concrete ", carry out correlated performance survey
It is fixed.
The utility model has the advantages that
Compared with prior art, present invention has an advantage that
With water absorption rate, low, good heat insulating, intensity are high, fluidity is big for the foam type concrete 1, prepared under inventive formulation,
Durable, at low cost and the features such as convenient for construction, the thermal coefficient of more general foam concrete can reduce by 30 ~ 50%, and water absorption rate reduces
50 ~ 100%, in the case where not changing bulk density, improve the compression strength of foam concrete；
2, waterproof material used is combined by waterproofing agent of organosilicon, calcium stearate and zinc stearate in the present invention, and organosilicon is anti-
Aqua belongs to inorganic composite materials, and concrete crushing strength can be improved in not aging, long-term water-fast, extends concrete life；It is stearic
The use of sour calcium improves the mobility of concrete, improves the cracking of concrete, improves the durability of concrete；Zinc stearate removes
There is hygroscopicity, other than waterproof, the advantages of also there is delaying aging, extend concrete life, guaranteeing foam type coagulation
While soil has higher waterproof performance, the mobility and mechanical property of foam type concrete are improved, good fluidity facilitates
Improve the being tightly combined property with major project；
3, compound insulating material selected in the present invention can improve base while reducing foam type concrete thermal coefficient
The waterproof performance of body；
4, there is weakening effect to foam concrete mechanical property due to compound insulating material, by waterproof material and complex heat-preservation material
Material use simultaneously can make up this defect, and waterproof material can improve mechanical property to a certain extent；
5, higher alcohols composite foam stabilizer used in the present invention, foam stability energy is good, has to the stability of foam aobvious
The improvement result of work slows down the drain of liquid film this is because the intervention of alkanol molecule enhances liquid film viscosity, it is ensured that foam is mixed
Solidifying soil is formed by the uniform stabilization of foam, does not collapse；
6, in the present invention water-reducing agent used selection, it is ensured that strength and stability, the sedimentation and deformation of foam concrete reduce；
7, the fluidisation reinforcing agent that present invention addition silicon ash and slag powders are combined, improves the intensity and performance of foam concrete,
Further according to using and execution conditions and requiring to choose suitable proportion volume, the concrete castability, steady of high-performance foam concrete is controlled
Qualitative and density, mobility, possess higher density and stronger thermal-insulating waterproof ability.
Detailed description of the invention
Fig. 1 is influence of the different component additive amount to foam concrete mechanical property, wherein (a) rubber powder, (b) waterproof
Material;
Fig. 2 is influence of the different component additive amount to foam concrete thermal coefficient, wherein (a) compound insulating material (b) is prevented
Water material；
Fig. 3 is influence of the different component additive amount to foam concrete water absorption rate, wherein (a) compound insulating material, (b) waterproof
Material.
Specific embodiment
Embodiment 1
A kind of high-strength heat preservation waterproof foam concrete, including following component by mass: 3.0 kg of cement, flyash 1.0
Kg fluidizes reinforcing agent 2.0kg, 1.0 kg of sand, 2.7 kg of water, 0 g of compound insulating material, 0 g of waterproof material, foam stabiliser 0
G, 5 g of water-reducing agent, foam group 200g.
Compound insulating material, waterproof material, foam stabiliser are free of i.e. in this concrete.
Above-mentioned high-strength heat preservation waterproof foam concrete preparation process, comprising the following steps:
Step 1,35 parts of water are taken, 5 parts of animal proteins, 10 parts of lauryl sodium sulfate are sequentially added, at the uniform velocity stirring is straight at room temperature
To mixed liquor clear, stoste is obtained, 35g stoste is taken, as foaming group after 40 times of dilution；
Step 2, cement, fluidisation reinforcing agent, waterproof material, compound insulating material and water-reducing agent are sequentially added in foam group and is stirred
Uniformly, add water and be again stirring for, to ensure that each composition material is evenly dispersed in slurry；
Step 3, the foam that regulation coefficient of foaming and weight are prepared by foaming agent is mixed in the slurry being stirred, and is uniformly mixed,
It is repeatedly measured the through slurry wet density of slurry wet density and reaches 700 ± 50 g/L of standard to get foam concrete.
With reference to CJJT 177-2012 " air bubble mix light-textured soil reclamation work technical regulation ", JGJ 70-2009 " building sand
Slurry basic performance tests method ", JC/T985-2005 " ground cement-based self-leveling mortar ", GB/T 1596-2005 " be used for
Flyash in cement and concrete " etc. specification, carry out correlated performance measurement.
The synchronous grouting slurry prepared by said components and method is strong according to specification measurement wet density, fluidity, 28d
Degree, water absorption rate, thermal coefficient and setting time are respectively 7.64kN/m3, 21.6cm, 3.54MPa, 38%, 0.140W/ (m K) and
15.0h。
Embodiment 2
Compound insulating material in embodiment 1 is changed to 45g, remaining component and content remain unchanged.
It is respectively according to specification measurement wet density, fluidity, 28d intensity, water absorption rate, thermal coefficient and setting time
7.13kN/m3, 20.1cm, 3.23MPa, 21%, 0.113W/ (m K) and 15.5h.
Embodiment 3
Compound insulating material in embodiment 1 is changed to 90g, remaining component and content remain unchanged.
The synchronous grouting slurry prepared by said components and method is strong according to specification measurement wet density, fluidity, 28d
Degree, water absorption rate, thermal coefficient and setting time are respectively 7.15kN/m3, 18.8cm, 2.98MPa, 26%, 0.123W/ (m K) and
16.0h。
By the comparison of embodiment 1-3 it is found that the addition of compound insulating material, ensure that due mechanical property, reduce
The thermal coefficient of foam concrete, while improving the waterproof performance of foam concrete.
Embodiment 4
Except waterproof material additive amount increase be 45g when, remaining is the same as embodiment 2.
, with embodiment 1, the synchronous grouting slurry prepared by said components and method measures wet appearance according to specification for remaining
Weight, fluidity, 28d intensity, water absorption rate, thermal coefficient and setting time are respectively 7.15kN/m3、21.7cm、3.68MPa、
13%, 0.112W/ (m K) and 15.5h.
Embodiment 5
In addition to waterproof material is changed to 90g, remaining is the same as embodiment 4.
The synchronous grouting slurry prepared by said components and method is strong according to specification measurement wet density, fluidity, 28d
Degree, water absorption rate, thermal coefficient and setting time are respectively 7.17kN/m3, 23.6cm, 3.35MPa, 18%, 0.129W/ (m K) and
15.5h。
The result of 2 and embodiment 4-5 is it is found that waterproof material ensures foam concrete waterproof with higher in conjunction with the embodiments
Performance, and improve the mobility and mechanical property of foam concrete simultaneously.
Embodiment 6
It is 45g that the additive amount of de-bubble foam stabilizers, which increases, remaining is the same as embodiment 4.
The synchronous grouting slurry prepared by said components and method is strong according to specification measurement wet density, fluidity, 28d
Degree, water absorption rate, thermal coefficient and setting time be respectively 7.19kN/m3,24.2cm, 3.76MPa, 11%, 0.104W/ (m K) and
15.5h。
Embodiment 7
It is 90g that the additive amount of de-bubble foam stabilizers, which increases, remaining is the same as embodiment 4.
The synchronous grouting slurry prepared by said components and method is strong according to specification measurement wet density, fluidity, 28d
Degree, water absorption rate, thermal coefficient and setting time be respectively 7.09kN/m3,22.4cm, 3.59MPa, 15%, 0.110W/ (m K) and
15.5h。
By embodiment 4 and the comparison of the experimental data of embodiment 6-7 it is found that the addition of foam stabiliser, it is ensured that foam is mixed
Solidifying soil is formed by the uniform stabilization of foam, does not collapse, ensure that foam concrete lightweight, and insulation, globality is good,
It is tightly combined with major project.
The embodiment of 1-7 is compared through the foregoing embodiment, forms the lines of Fig. 1-3, can define from lines
Show foam stabiliser content, water-reducing agent volume to light foam concrete slurry fluidity and test specimen 28d compression strength
Test influence curve, test influence curve of the sedimentation decrement agent content to test specimen 28d intensity and drying shrinkage.
Using CN106966659B as comparative example, by experiment detection comparison it is found that foam group of the present invention is by animal egg
White modified foaming agent foams, and the foam stabilizer is higher alcohols Composite foam stabilizer, the compound foam stabilizing of higher alcohols
Agent is combined by hexadecanol, lauryl alcohol, n-butanol and guar gum, and in addition foaming agent is by dodecyl sulphate and animal protein
Compound to prepare mother liquor, the modified foaming agent of preparation has coefficient of foaming height, and it is compound that higher alcohols are added in the strong feature of foam stabilizing ability
It is uniform, stable higher, fine and smooth that foam is formed by after type foam stabilizer, it is functional, do not collapse.
The present invention adds flyash, the Al in flyash when preparing foam concrete2O3、SiO2 Siliceous material and cement
Ca (OH) is generated after adding water and stirring2 Equal alkali-activators, further generate hydrated calcium silicate gel, the gel-filled foam of formation
Concrete, be conducive to improve fresh concrete workability, reduce the bleeding quantity of slurry, improve concrete performance and
Compression strength.
Finally, the compound addition rubber powder of the present invention, light-burning magnesium powder and calcium powder improve the heat preservation of concrete as heat preserving agent
Performance.Since the waterproof thermal-insulated performance of rubber powder itself is preferable, hole wall can be improved by mixing rubber powder in foam concrete
Essential attribute makes matrix heat preservation and waterproof performance all increase, but rubber powder is distributed in foam concrete slurry and there is unevenness
, there is interconnected pore, a large amount of bubble floatings in the even phenomenon and bigger floating situation of rubber powder volume is more serious, and matrix is layered to endeavour
Performance is learned to be weakened.So selection mixes light-burning magnesium powder and calcium powder again to improve the compression strength and durability of foam concrete, into
The mechanical property of one step improvement concrete.
There are many application approach of the present invention, the above is only a preferred embodiment of the present invention, it is noted that this technology is led
For the those of ordinary skill in domain, without departing from the principles of the present invention, improvement can be also made, these improvement also should be regarded as this
The protection scope of invention.
Claims (5)
1. a kind of high-strength heat preservation waterproof foam concrete, which is characterized in that including following component by mass: cement 1.5-
4.0kg fluidizes reinforcing agent 1.0-2.5 kg, flyash 0-2 kg, sand 0.5-2.5 kg, water 1.5-3.5 kg, foam group 150-
300g, waterproof material 25-90 g, compound insulating material 25-90 g, foam stabiliser 0-10g, water-reducing agent 0-8g；The foam
Group is foamed by animal protein modified foaming agent；The compound insulating material by rubber powder, light-burning magnesium powder and calcium powder it is compound and
At the mixing mass ratio of the rubber powder, light-burning magnesium powder and calcium powder is 1:(0-0.2): (0-0.5).
2. a kind of high-strength heat preservation waterproof foam concrete according to claim 1, which is characterized in that the waterproof material
It is combined by waterproofing agent of organosilicon, calcium stearate and zinc stearate, the waterproofing agent of organosilicon, calcium stearate and zinc stearate
Mixing mass ratio be 1:(1 ~ 1.3): (0.3 ~ 0.7).
3. a kind of high-strength heat preservation waterproof foam concrete according to claim 1, which is characterized in that the fluidisation enhancing
Agent is that silicon ash and slag powders are combined, and the mixing mass ratio of the silicon ash and slag powders is 1:0 ~ 0.8；The fluidisation enhancing
The moisture content of agent is 0.2%, fineness 5.4.
4. a kind of high-strength heat preservation waterproof foam concrete according to claim 1, which is characterized in that the foam is stablized
Agent is higher alcohols Composite foam stabilizer, and the higher alcohols Composite foam stabilizer is by hexadecanol, lauryl alcohol, n-butanol and Guar
Glue is combined, and mixing mass ratio is followed successively by 1:0.3 ~ 0.5:0.2 ~ 0.3:0.2 ~ 0.4.
5. the preparation method based on high-strength heat preservation waterproof foam concrete described in claim 1, which is characterized in that including with
Lower step: step 1, taking 35 parts of water, sequentially adds 5 parts of high-performance animal proteins, 10 parts of lauryl sodium sulfate, even at room temperature
Speed stirring obtains stoste up to mixed liquor clear, 35g stoste is taken, as foaming group after 40 times of dilution；Step 2, by water
Mud, fluidisation reinforcing agent, waterproof material, compound insulating material and water-reducing agent are sequentially added and are stirred evenly in foam group, add water and again
Secondary stirring, to ensure that each composition material is evenly dispersed in slurry；Step 3, regulation foaming times is mixed in the slurry being stirred
The foam that several and weight is prepared by foaming agent is uniformly mixed, and is repeatedly measured the through slurry wet density of slurry wet density and is reached standard
700 ± 50 g/L are to get foam concrete.
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| CN113716920A (en) * | 2021-10-20 | 2021-11-30 | 福建农林大学 | Foam concrete wall material with industrial waste replacing cement in large proportion |
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| CN115504751A (en) * | 2021-06-23 | 2022-12-23 | 华润化学材料科技股份有限公司 | Concrete and preparation method thereof |
| CN115504751B (en) * | 2021-06-23 | 2023-07-04 | 华润化学材料科技股份有限公司 | Concrete and preparation method thereof |
| CN113716920A (en) * | 2021-10-20 | 2021-11-30 | 福建农林大学 | Foam concrete wall material with industrial waste replacing cement in large proportion |
| CN115321906A (en) * | 2022-08-09 | 2022-11-11 | 山东高速明董公路有限公司 | Graphite tailing foam concrete and preparation method thereof |
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