CN109400039A - A kind of foam concrete road and bridge filling material - Google Patents
A kind of foam concrete road and bridge filling material Download PDFInfo
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- CN109400039A CN109400039A CN201811504683.9A CN201811504683A CN109400039A CN 109400039 A CN109400039 A CN 109400039A CN 201811504683 A CN201811504683 A CN 201811504683A CN 109400039 A CN109400039 A CN 109400039A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—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
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- 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
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention discloses a kind of foam concrete road and bridge filling materials, belong to building material technical field.Comprising: by weight, 100 parts of cement, 10-15 parts of flyash, 5-10 parts of coal gangue haydite, 20-30 parts of discarded concrete powder, 8-12 parts of slag, 0.5-0.8 parts of lime stone, 0.15-0.2 parts of fiber, 2-5 parts of foaming agent, 1-2 parts of hydrophober, 1-2 parts of water-reducing agent and 80-120 parts of water.The present invention is compounded in conjunction with appropriate proportion with additive by the screening to concrete admixture, hence it is evident that improves the mechanical property and stability and durability after curing of filling material.
Description
Technical field
The present invention relates to building material technical fields, and in particular to a kind of foam concrete road and bridge filling material.
Background technique
Currently, the main grittiness soil of common backfilling material, graded sand, clay etc. in municipal bridge and roadbed junction,
Due to such material, itself severe is big, and intensity is smaller, and deformation modulus is smaller, and backfill construction in filler compactness often
It is difficult to reach code requirement, so that the relative settlement of bridge and roadbed junction is difficult to reach design requirement.
Light-weight foamed concrete is a kind of lightweight filling material, by cement slurry and a certain proportion of stabilization gas tiny enough
Group is steeped, is adequately mixed and whisks to form fluid, and final coagulation forming.Light-weight foamed concrete quality is light, intensity is high and adjustable
Range is wide, possesses good independence, and easy for construction, quick, has preferable Technical Economy.Foamed concrete material is answered
Filled for road and bridge Abutment Back, there is intensity to be greater than conventional backfill, fill after form that an entirety, shock resistance be good, nothing
The advantages such as lateral pressure, small to foundation load.After being filled using foam concrete, Abutment Back is in overconsolidation state, thus subtracts
Few sedimentation and differential settlement, avoid Bridgehead-Jumping Disease at the settlement after construction for reducing abutment back embankment filler to the greatest extent itself, have bright
Aobvious technical advantage.
But existing its intensity of foam concrete filling material can no longer meet and require higher road and bridge, and
And its stability is poor, various aspects of performance decays larger at any time, and durability is poor.
Summary of the invention
The object of the present invention is to provide a kind of foam concrete road and bridge filling materials, steady to solve existing road and bridge filling material
The problem of qualitative difference and durability difference.
The technical scheme to solve the above technical problems is that
A kind of foam concrete road and bridge filling material, comprising: by weight, 100 parts of cement, 10-15 parts of flyash, coal
5-10 parts of spoil haydite, 20-30 parts of discarded concrete powder, 8-12 parts of slag, 0.5-0.8 parts of lime stone, fiber 0.15-0.2
Part, 2-5 parts of foaming agent, 1-2 parts of hydrophober, 1-2 parts of water-reducing agent and 80-120 parts of water.
The present invention is compounded in conjunction with appropriate proportion with additive by the screening to concrete admixture, hence it is evident that is improved
The mechanical property of filling material and after curing stability and durability.Specifically:
The present invention improves filling material later period mechanical property by addition flyash, and is avoided by controlling its dosage
Influence of the flyash to material property durability.Meanwhile the present invention adds coal gangue haydite, discarded concrete powder and slag three
Kind industrial waste, on the one hand can be obviously improved inner microstructure, three contains active mineral silica, oxygen
Change aluminium and iron oxide, the calcium hydroxide that can be generated with cement slaking reaction continues that secondary reaction of hydration occurs, and activity is obtained
Excitation, and since discarded concrete powder itself carrys out source concrete, there is certain gelatification, it is strong to advantageously form early stage
Degree；On the other hand, three kinds of industrial wastes can also be turned waste into wealth, realizes resource recycling, it is same cost can not only be reduced
When be conducive to environmental protection.Further, since discarded concrete powder fineness is high, concrete inner structure can also be made after incorporation
It is closely knit, less open pore and intercommunicating pore is formed to reduce material water absorption rate, and its incorporation is controlled and is matched above-mentioned
Than that can achieve the purpose that reduce water absorption rate in range, while can also avoid influencing fluidity of slurry change because additional amount is too many
Difference leads to bubble floating, and then forms open pore or intercommunicating pore in block surface.The present invention improves material by addition lime stone
The early strength and rate of set of material reduce the probability of bubbles burst, reduce and collapse, and it is good freeze proof that material is had
Performance.The present invention is also added with fiber, to improve the dry apparent density and compression strength and bend resistance intensity of concrete.By adding
Add hydrophober and water-reducing agent, reduces the absorption to moisture in air, improve the work workability of foam concrete and reduce water
Gray scale improves the comprehensive performance of concrete.
Fiber of the invention includes but are not limited to glass fibre, polyester fiber and carbon fiber.
Further, in preferred embodiments of the present invention, foam concrete road and bridge filling material includes: by weight
Meter, 100 parts of cement, 12-14 parts of flyash, 6-8 parts of coal gangue haydite, 22-26 parts of discarded concrete powder, 8-10 parts of slag,
0.6-0.8 parts of lime stone, 0.16-0.18 parts of fiber, 3-4 parts of foaming agent, 1.2-1.6 parts of hydrophober, 1.5-1.8 parts of water-reducing agent with
And 90-120 parts of water.
Further, in preferred embodiments of the present invention, foaming agent is composite foamable agent comprising: it accounts for composite foamed
The wink of the protein foaming agent of agent gross mass 70-80%, the foam stabilizer of 15-20% and 5-10% coagulates agent.
Main component of the present invention using protein foaming agent as composite foamable agent, compared to other kinds of foaming agent (pine
Odor type, metal aluminium profiles, resin type etc.), amount of expansion is more, stability is good, product strength is higher, for entire composite foamable agent
Foam performance have laid a good foundation.Meanwhile the present invention is aided with stabilizer again, further increases the foam of protein foaming agent
Stability and frothing capacity, and then improve the durability of material.
Further, in preferred embodiments of the present invention, composite foamable agent includes: to account for composite foamable agent gross mass 74-
The wink of 78% protein foaming agent, the foam stabilizer of 16-18% and 6-8% coagulates agent.
Further, in preferred embodiments of the present invention, foam stabilizer includes gum arabic, dodecyl benzene sulfonic acid
Sodium, lauryl sodium sulfate and triethanolamine, mass ratio 1:(2-3): (0.8-1.2): (0.1-0.2).
Stabilizer of the invention obtains excellent foam stability energy also by component screening and appropriate proportion relation.This hair
It is bright using gum arabic, neopelex, lauryl sodium sulfate, polyacrylamide and triethanolamine as stablize at
Point, improve the stability and foaming characteristic of foam.
Specifically, gum arabic is a kind of polyelectrolyte, with hydroxyl and carboxyl, these functional groups and albumen
There is only van der waals forces can also form a large amount of hydrogen bond between Blowing agent molecules, in liquid film surface formed high viscosity,
Elastomeric skin covering of the surface can repair deformation caused by external disturbance, be not easily broken foam.Add anion surface active
Agent neopelex and lauryl sodium sulfate, it is orientable to be adsorbed on liquid film, reduce liquid film surface tension, Er Qieyou
Repulsive interaction between anion of the same race can prevent thinning of liquid film to a certain extent, to form higher mechanical strength
Film, be not easily broken foam, and be added to its hair of neopelex and lauryl sodium sulfate rear foaming agent
Multiple is steeped there has also been promotion, can be made up to a certain extent because gum arabic causes viscosity to increase so that foaming characteristic is impacted
Defect.In addition, acting synergistically, guaranteeing with neopelex and lauryl sodium sulfate in collocation triethanolamine
Ensure foam stability under the premise of compared with high-foaming multiple, to achieve the effect that blistering is all good with foam stability energy.
Further, in preferred embodiments of the present invention, gum arabic, neopelex, dodecyl
The mass ratio of sodium sulphate and triethanolamine is 1:(2.5-2.8): (1-1.2): (0.15-0.2).
Further, in preferred embodiments of the present invention, protein foaming agent is animal protein foaming agent, the animal egg
The preparation method of white hair infusion includes:
It is dried after animal skin is cleaned up, cuts into particle, be then the solid-liquid ratio of 1:(10-15) according to mass ratio
It is added and handles 4-6h in 70-80 DEG C of water bath with thermostatic control into the solution of sodium bisulfite that concentration is 0.5-0.6wt%, filter,
According to 1:(8-12) mass ratio will filter the calcium hydroxide solution that resulting sediment and concentration are 1-2wt% and mix, reaction
After 1.5-2.5h, filtering obtains foaming agent mother liquor.
Further, in preferred embodiments of the present invention, animal protein foaming agent includes: the foaming agent of 40-42wt%
The sodium carboxymethylcellulose of mother liquor, the n-butanol of 0.15-0.18wt% and 0.04-0.05wt%, surplus are water.
Protein foaming agent as composite foamable agent main component of the present invention is in addition to containing at special process through the invention
Except the foaming agent mother liquor obtained after reason, it is also added with n-butanol and sodium carboxymethylcellulose, further ensures that foam stability.
Further, in preferred embodiments of the present invention, animal skin include in livestock fur and poultry fur extremely
Few one kind.
Livestock fur can be one of pigskin hair, ox-hide hair and sheepskin hair or a variety of any combinations.Poultry fur
It can be one of chicken feather, drake feather and goose feather or a variety of any combinations.Preferably, animal skin is chicken feather, compared to
For other several furs, utility value is lower, and the present invention can be turned waste into wealth chicken feather as animal protein sources, mentions
The utilization rate of high chicken feather, while cost of manufacture is lower.
Further, in preferred embodiments of the present invention, the partial size of discarded concrete powder is 40-50 μm.
The present invention controls the fineness of discarded concrete powder in the range of 40-50 μm, makes coagulation after guaranteeing incorporation
Native internal structure is closely knit, under the premise of forming less open pore and intercommunicating pore to reduce material water absorption rate, can also keep away
Exempt to influence fluidity of slurry variation because additional amount is too many, leads to bubble floating, and then form open pore or company in block surface
The case where through-hole, occurs.
The invention has the following advantages:
The present invention by be added proper proportion miserable pan feeding and additive, improve the rate of set of slurry, guarantee compared with
Facilitate foam concrete microstructure state cured in the short time, while improving the endurance quality of material.The present invention by pair
The compounding of foaming agent improves the performance of foaming agent in foam concrete, improves the stability of foaming agent, filling it disposably
It is not in compressive deformation and shattered to pieces phenomenon, and then guarantee that the performance of entire filling material is stablized when highly larger.
Specific embodiment
Principles and features of the present invention are described with reference to embodiments, the given examples are served only to explain the present invention,
It is not intended to limit the scope of the present invention.The person that is not specified actual conditions in embodiment, according to normal conditions or manufacturer suggests
Condition carries out.Reagents or instruments used without specified manufacturer is the conventional products that can be obtained by commercially available purchase.
Embodiment 1:
The foam concrete road and bridge filling material of the present embodiment, comprising: by weight, 100 parts of cement, flyash 10
Part, 5 parts of coal gangue haydite, 20 parts of discarded concrete powder, 8 parts of slag, 0.5 part of lime stone, 0.15 part of fiber, 2 parts of foaming agent,
1 part of hydrophober, 1 part of water-reducing agent and 80 parts of water.
Embodiment 2:
The foam concrete road and bridge filling material of the present embodiment, comprising: by weight, 100 parts of cement, flyash 15
Part, 30 parts of the discarded concrete powder that 10 parts of coal gangue haydite, partial size are 40 μm, 12 parts of slag, 0.8 part of lime stone, fiber 0.2
Part, 5 parts of foaming agent, 2 parts of hydrophober, 2 parts of water-reducing agent and 120 parts of water.
Embodiment 3:
The foam concrete road and bridge filling material of the present embodiment, comprising: by weight, 100 parts of cement, flyash 12
Part, 22 parts of the discarded concrete powder that 6 parts of coal gangue haydite, partial size are 50 μm, 8 parts of slag, 0.6 part of lime stone, fiber 0.16
Part, 3 parts of foaming agent, 1.2 parts of hydrophober, 1.5 parts of water-reducing agent and 90 parts of water.
Embodiment 4:
The foam concrete road and bridge filling material of the present embodiment, comprising: by weight, 100 parts of cement, flyash 14
Part, 26 parts of the discarded concrete powder that 8 parts of coal gangue haydite, partial size are 45 μm, 10 parts of slag, 0.8 part of lime stone, fiber 0.18
Part, 4 parts of foaming agent, 1.6 parts of hydrophober, 1.8 parts of water-reducing agent and 120 parts of water.
Embodiment 5:
The foam concrete road and bridge filling material of the present embodiment, comprising: by weight, 100 parts of cement, flyash 13
Part, 7 parts of coal gangue haydite, 25 parts of discarded concrete powder, 9 parts of slag, 0.7 part of lime stone, 0.17 part of fiber, foaming agent 3.5
Part, 1.5 parts of hydrophober, 1.6 parts of water-reducing agent and 100 parts of water.
Foaming agent in above-described embodiment 1-5 can be commercial product, be also possible in the following example 6-10 of the present invention
Composite foamable agent.Hydrophober and water-reducing agent are commercial product.
When the foaming agent of embodiment 6-10 is respectively adopted in above-described embodiment 1-5, it is expressed as embodiment 1 (6), embodiment 2
(7), embodiment 3 (8), embodiment 4 (9) and embodiment 5 (10).Wherein, embodiment 1 (6) refers to the foaming using embodiment 6
Agent, according to filling material obtained by component proportion same as Example 1.Embodiment 2 (7), embodiment 3 (8), embodiment 4
(9) and embodiment 5 (10) and so on.
Embodiment 6:
The light-weight foamed concrete composite foamable agent of the present embodiment comprising: account for composite foamable agent gross mass 70%
Protein foaming agent, 20% stabilizer and 10% wink coagulate agent.Three kinds of reagents are mixed according to corresponding proportion can be obtained again
Close foaming agent.
Wherein, protein foaming agent includes: the n-butanol and 0.04wt% of the foaming agent mother liquor of 40wt%, 0.15wt%
Sodium carboxymethylcellulose, surplus are water.
The preparation method of foaming agent mother liquor includes: to dry after cleaning up ox-hide hair, particle is cut into, then according to matter
It is to handle in 70 DEG C of water bath with thermostatic control in the solution of sodium bisulfite of 0.5wt% that the solid-liquid ratio that amount ratio is 1:10, which is added to concentration,
6h, filtering mix the calcium hydroxide solution for filtering resulting sediment with concentration is 1wt% according still further to the mass ratio of 1:8, instead
After answering 1.5h, filtering obtains foaming agent mother liquor；
Wherein, stabilizer includes gum arabic, neopelex, lauryl sodium sulfate and triethanolamine,
Its mass ratio is 1:2:0.8:0.1.
Embodiment 7:
The light-weight foamed concrete composite foamable agent of the present embodiment comprising: account for composite foamable agent gross mass 80%
Protein foaming agent, 15% stabilizer and 5% wink coagulate agent.By three kinds of reagents according to corresponding proportion mix can be obtained it is compound
Foaming agent.
Wherein, protein foaming agent includes: the n-butanol and 0.05wt% of the foaming agent mother liquor of 42wt%, 0.18wt%
Sodium carboxymethylcellulose, surplus are water.
The preparation method of foaming agent mother liquor includes: to dry after cleaning up sheepskin hair, particle is cut into, then according to matter
It is to handle in 80 DEG C of water bath with thermostatic control in the solution of sodium bisulfite of 0.6wt% that the solid-liquid ratio that amount ratio is 1:15, which is added to concentration,
4h, filtering mix the calcium hydroxide solution for filtering resulting sediment with concentration is 2wt% according still further to the mass ratio of 1:12,
After reacting 2.5h, filtering obtains foaming agent mother liquor；
Wherein, stabilizer includes gum arabic, neopelex, lauryl sodium sulfate and triethanolamine,
Its mass ratio is 1:3:1.2:0.2.
Embodiment 8:
The light-weight foamed concrete composite foamable agent of the present embodiment comprising: account for composite foamable agent gross mass 74%
Protein foaming agent, 16% stabilizer and 10% wink coagulate agent.Three kinds of reagents are mixed according to corresponding proportion can be obtained again
Close foaming agent.
Wherein, protein foaming agent includes: the n-butanol and 0.045wt% of the foaming agent mother liquor of 41wt%, 0.16wt%
Sodium carboxymethylcellulose, surplus is water.
The preparation method of foaming agent mother liquor includes: to dry after cleaning up pigskin hair, particle is cut into, then according to matter
Amount than be 1:12 solid-liquid ratio be added to concentration be in the solution of sodium bisulfite of 0.55wt% in 75 DEG C of water bath with thermostatic control
5h is managed, filtering mixes the calcium hydroxide solution for filtering resulting sediment with concentration is 1.5wt% according still further to the mass ratio of 1:10
It closes, after reacting 2h, filtering obtains foaming agent mother liquor；
Wherein, stabilizer includes gum arabic, neopelex, lauryl sodium sulfate and triethanolamine,
Its mass ratio is 1:2.5:1:0.15.
Embodiment 9:
The light-weight foamed concrete composite foamable agent of the present embodiment comprising: account for composite foamable agent gross mass 78%
Protein foaming agent, 16% stabilizer and 6% wink coagulate agent.By three kinds of reagents according to corresponding proportion mix can be obtained it is compound
Foaming agent.
Wherein, protein foaming agent includes: the n-butanol and 0.05wt% of the foaming agent mother liquor of 41.5wt%, 0.17wt%
Sodium carboxymethylcellulose, surplus is water.
The preparation method of foaming agent mother liquor includes: to dry after cleaning up goose feather, particle is cut into, then according to quality
Being added than the solid-liquid ratio for 1:12 to concentration is to handle in 80 DEG C of water bath with thermostatic control in the solution of sodium bisulfite of 0.6wt%
5h, filtering mix the calcium hydroxide solution for filtering resulting sediment with concentration is 1.5wt% according still further to the mass ratio of 1:9,
After reacting 2h, filtering obtains foaming agent mother liquor；
Wherein, stabilizer includes gum arabic, neopelex, lauryl sodium sulfate and triethanolamine,
Its mass ratio is 1:2.8:1.1:0.18.
Embodiment 10:
The light-weight foamed concrete composite foamable agent of the present embodiment comprising: account for composite foamable agent gross mass 76%
Protein foaming agent, 17% stabilizer and 7% wink coagulate agent.By three kinds of reagents according to corresponding proportion mix can be obtained it is compound
Foaming agent.
Wherein, protein foaming agent includes: the n-butanol and 0.05wt% of the foaming agent mother liquor of 41.5wt%, 0.17wt%
Sodium carboxymethylcellulose, surplus is water.
The preparation method of foaming agent mother liquor includes: to dry after cleaning up chicken feather, particle is cut into, then according to quality
Being added than the solid-liquid ratio for 1:12 to concentration is to handle in 80 DEG C of water bath with thermostatic control in the solution of sodium bisulfite of 0.6wt%
5h, filtering mix the calcium hydroxide solution for filtering resulting sediment with concentration is 1.5wt% according still further to the mass ratio of 1:9,
After reacting 2h, filtering obtains foaming agent mother liquor；
Wherein, stabilizer includes gum arabic, neopelex, lauryl sodium sulfate and triethanolamine,
Its mass ratio is 1:2.6:1.1:0.18.
Comparative example 1
The foaming agent of this comparative example is pure animal protein foaming agent, raw for Hefei Li Chuan energy-saving building material development corporation, Ltd.
The III model animal protein foaming agent of LC- of production.
Comparative example 2
This comparative example is substantially the same manner as Example 10, and difference is, the protein foaming agent used is commercial product, is Hefei
The III model animal protein foaming agent of LC- of Li Chuan energy-saving building material development corporation, Ltd. production.
Comparative example 3
This comparative example is substantially the same manner as Example 10, and difference is, do not include stabilizer, 94% protein foaming agent and
6% wink coagulates agent, and wherein protein foaming agent is identical as the ingredient of embodiment 5.
The performance test of the different foaming agents of test example 1
Above-described embodiment 6-10 and comparative example 1-3 is subjected to foam performance detection, testing result is shown in Table 1.
Table 1
Wherein, coefficient of foaming is the multiple that foam volume is greater than foaming agent water solution volume.Test method are as follows: by formation
Foam fills that solvent is 250mL, diameter is in the unmatched glass tank of 60mm, and both ends strike off, and claims its quality, calculates coefficient of foaming.
Depression is away from the distance for foam depression in 1h.Test method are as follows: taking internal diameter is the transparent column of 6cm, a height of 9cm
It describes device, fills with the foam just made, scrape flat surface, a piece of paper is covered on foam, be placed in calm place, it is heavy to measure foam after 1h
Sunken distance.
Bleeding quantity is the volume that foam destroys generated foaming agent water solution in 1h.
As it can be seen from table 1 its foam performance of composite foamable agent and foam stability of preparation of the embodiment of the present invention can be general
All over better than comparative example 1-3.Thus illustrate, pass through screening and appropriate proportion relation to foaming agent raw material components, hence it is evident that improve
The foam performance of foaming agent.
By embodiment 10 and the comparison of comparative example 1 as can be seen that the coefficient of foaming of composite foamable agent of the invention is much higher than pair
Ratio 1 has good foaming characteristic, and depression illustrates its foam stability more away from comparative example 1 is also significantly less than with bleeding quantity
It is good.
After the stabilizer for adding the embodiment of the present invention it can be seen from comparative example 1 and the comparison of comparative example 2, comparative example 2 is risen
Bubble property and foam stability be improved significantly, but still not as good as embodiment 10, this explanation, as foaming agent of the embodiment of the present invention
Its performance quality of the protein foaming agent of main component play the role of to entire composite foamable agent it is conclusive, this also illustrates, this
The special protein foaming agent of invention improves foaming characteristic and foam stability for commercial product really.
Although compared to comparative example 1, its property obviously obtains comparative example 3 it can be seen from comparative example 3 and the comparison of embodiment 10
Improve, but still not as good as embodiment 10.Thus illustrate, stabilizer has more significantly for improving the stability of protein foaming agent
Effect.
Comparative example 4
The filling material of this comparative example and embodiment 5 (10) are essentially identical, and difference is, do not add coal gangue haydite,
Discarded concrete powder and slag, concrete component are as follows:
By weight, 100 parts of cement, 13 parts of flyash, 0.7 part of lime stone, 0.17 part of fiber, 3.5 parts of foaming agent, hate
1.5 parts of aqua, 1.6 parts of water-reducing agent and 100 parts of water.
Comparative example 5
The filling material of this comparative example and embodiment 5 (10) are essentially identical, and difference is, do not add discarded concrete powder
Body, concrete component are as follows:
By weight, 100 parts of cement, 13 parts of flyash, 7 parts of coal gangue haydite, 9 parts of slag, 0.7 part of lime stone, fibre
0.17 part of dimension, 3.5 parts of foaming agent, 1.5 parts of hydrophober, 1.6 parts of water-reducing agent and 100 parts of water.
Comparative example 6
The filling material of this comparative example and embodiment 5 (10) are essentially identical, and difference is, do not add lime stone, tool
Body component are as follows:
By weight, 100 parts of cement, 13 parts of flyash, 7 parts of coal gangue haydite, 25 parts of discarded concrete powder, slag
9 parts, 0.17 part of fiber, 3.5 parts of foaming agent, 1.5 parts of hydrophober, 1.6 parts of water-reducing agent and 100 parts of water.
Comparative example 7
The filling material of this comparative example is substantially the same manner as Example 5, and difference is, does not add fiber, concrete component
Are as follows:
By weight, 100 parts of cement, 13 parts of flyash, 7 parts of coal gangue haydite, 25 parts of discarded concrete powder, slag
9 parts, 0.7 part of lime stone, 0.17 part of fiber, 3.5 parts of foaming agent, 1.5 parts of hydrophober, 1.6 parts of water-reducing agent and 100 parts of water.
The performance test of the different filling materials of test example 2
By above-described embodiment 5 (10) and comparative example 4-7 referring to GB/T11969-2008 " steam-pressing aero-concrete performance test
Method " it is tested, test result is shown in Table 2.
Table 2
From table 2 it can be seen that the filling material performance of preparation of the embodiment of the present invention is generally better than comparative example 4-7.Thus it says
It is bright, pass through screening and appropriate proportion relation to raw material components are filled, hence it is evident that improve the mechanical property of filling material and resistance to
Long property.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of foam concrete road and bridge filling material characterized by comprising by weight, 100 parts of cement, flyash
10-15 parts, 5-10 parts of coal gangue haydite, 20-30 parts of discarded concrete powder, 8-12 parts of slag, 0.5-0.8 parts of lime stone, fibre
0.15-0.2 parts of dimension, 2-5 parts of foaming agent, 1-2 parts of hydrophober, 1-2 parts of water-reducing agent and 80-120 parts of water.
2. foam concrete road and bridge filling material according to claim 1 characterized by comprising by weight, water
100 parts of mud, 12-14 parts of flyash, 6-8 parts of coal gangue haydite, 22-26 parts of discarded concrete powder, 8-10 parts of slag, lime stone
0.6-0.8 parts, 0.16-0.18 parts of fiber, 3-4 parts of foaming agent, 1.2-1.6 parts of hydrophober, 1.5-1.8 parts of water-reducing agent and water
90-120 parts.
3. foam concrete road and bridge filling material according to claim 1 or 2, which is characterized in that the foaming agent is multiple
Close foaming agent comprising: account for the protein foaming agent of composite foamable agent gross mass 70-80%, the foam stabilizer of 15-20% and 5-
10% wink coagulates agent.
4. foam concrete road and bridge filling material according to claim 3, which is characterized in that the composite foamable agent packet
Include: the wink for accounting for the protein foaming agent of composite foamable agent gross mass 74-78%, the foam stabilizer of 16-18% and 6-8% coagulates agent.
5. foam concrete road and bridge filling material according to claim 3, which is characterized in that the foam stabilizer includes for I
Uncle's natural gum, neopelex, lauryl sodium sulfate and triethanolamine, mass ratio 1:(2-3): (0.8-1.2):
(0.1-0.2)。
6. foam concrete road and bridge filling material according to claim 5, which is characterized in that the gum arabic, ten
The mass ratio of dialkyl benzene sulfonic acids sodium, lauryl sodium sulfate and triethanolamine is 1:(2.5-2.8): (1-1.2): (0.15-
0.2)。
7. foam concrete road and bridge filling material according to claim 3, which is characterized in that the protein foaming agent is
The preparation method of object protein foaming agent, the animal protein foaming agent includes:
It is dried after animal skin is cleaned up, cuts into particle, be then added according to mass ratio for the solid-liquid ratio of 1:(10-15)
4-6h is handled in 70-80 DEG C of water bath with thermostatic control into the solution of sodium bisulfite that concentration is 0.5-0.6wt%, is filtered, according to
Mass ratio 1:(8-12) mixes the calcium hydroxide solution for filtering resulting sediment with concentration is 1-2wt%, reacts 1.5-
After 2.5h, filtering obtains foaming agent mother liquor.
8. foam concrete road and bridge filling material according to claim 7, which is characterized in that the animal protein foaming agent
It include: the foaming agent mother liquor, the n-butanol of 0.15-0.18wt% and the carboxymethyl cellulose of 0.04-0.05wt% of 40-42wt%
Plain sodium, surplus are water.
9. foam concrete road and bridge filling material according to claim 7, which is characterized in that the animal skin includes domestic animal
At least one of hide hair and poultry fur.
10. foam concrete road and bridge filling material according to claim 1, which is characterized in that discarded concrete powder
Partial size is 40-50 μm.
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