CN110078437A - A kind of airfield runway elastomeric material arresting system and preparation method thereof and test device - Google Patents
A kind of airfield runway elastomeric material arresting system and preparation method thereof and test device Download PDFInfo
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- CN110078437A CN110078437A CN201910283316.9A CN201910283316A CN110078437A CN 110078437 A CN110078437 A CN 110078437A CN 201910283316 A CN201910283316 A CN 201910283316A CN 110078437 A CN110078437 A CN 110078437A
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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
- C04B28/04—Portland cements
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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
- C04B2111/00474—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
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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
- C04B2111/40—Porous or lightweight materials
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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
- 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 Kinetics & Catalysis (AREA)
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of airfield runway elastomeric material arresting system, each component containing following weight percent: clinker: 10%~35%；Gypsum: 0.2~0.8%；Inert filler: 20~50%；Foam stabilizer: 2%~5%；Foaming agent: 1%~4%；Water: 25%~38%；Accelerator: 1%~4%；Water-reducing agent: 0.3%~0.8%；The sum of weight percent of above-mentioned each component is 100%.Electronic universal test device the present invention also provides the preparation method of above-mentioned airfield runway elastomeric material arresting system and for testing airfield runway elastomeric material arresting system.Airfield runway elastomeric material arresting system provided by the invention can block in different distances according to the first standard of design and stop different types of aircraft, guarantee aircraft and persons on board's safety.
Description
Technical field
The present invention relates to a kind of airfield runway end elastomeric material arresting systems (EMAS), more particularly to a kind of long service
Performance is stablized, and is unchanged over time the airfield runway end elastomeric material arresting system and its system of crumple energy absorption characteristics substantially
Preparation Method and test device.
Background technique
With the rapid development of world's Civil Aviation Industry, flight sortie of taking off and landing be increased significantly, aircraft gun off the runway caused by fly
Row safety accident in Civil Aviation Industry in the highest flight occurs major accident after how aircraft being avoided to gun off the runway, has become the people
One important topic of safety of navigating.Airfield runway end elastomeric material arresting system (EMAS) is that have specific mechanical property by one kind
The Ultralight foam concrete of (crumple energy absorption characteristics), is laid on the ground of runway extended line, shape with the thickness of several tens cm
Bed is blocked at one.Its width is consistent with runway, and length is in tens of rice between more than 100 meters.Aircraft once gun off the runway i.e. into
Enter wherein, the Ultralight foam concrete crumple under the rolling of wheel absorbs the kinetic energy of aircraft, is guaranteeing aircraft and persons on board
Under the premise of safety, allows aircraft gradually to slow down and finally block to be parked in and block in bed.It has been proved by practice that punching can be effectively ensured in EMAS
The safety of the aircraft and persons on board goed off the course.
EMAS is very harsh to the crumple energy absorption performance requirement of Ultralight foam concrete, ultralight in entire service phase
The crumple energy absorption performance of matter foam concrete cannot be decreased obviously, otherwise aircraft pours block bed after, crumple absorb energy not
It is enough to fully absorb the kinetic energy of aircraft, can not blocks and stop in the distance of setting, it is possible to causing aircraft to gun off the runway causes machine
Ruin the accident that people dies.And in service phase, the crumple performance of Ultralight foam concrete can not obviously increase, and not so aircraft rushes
Enter after blocking bed, may cause undercarriage and fracture, causes the heavy casualties of persons on board.
Different from the foam concrete in wall heat insulation material, EMAS is with cement base Ultralight foamed concrete material whole
It is all under the exposed environments of airfield runway end, due to the moisture in condensed water (the big environment of the temperature difference) or environment in a service phase
(under marine environment) will lead to cementitious material continuous hydration, and concrete strength constantly increases, therefore Ultralight foam concrete
Crumple performance characteristics will constantly increase, the design standard more than EMAS.On the other hand, EMAS Ultralight foam concrete can also
The endurance issues caused by the environmental factors such as freeze thawing, carbonization and hole wall dusting due tos, causes crumple energy absorption characteristics to decline, therefore such as
What double-direction control EMAS is the important technical difficult point of long-acting military service EMAS with Ultralight concrete material.
The unresolved double regulation control problem of existing EMAS technology of preparing, can only EMAS after a period of use, work as EMAS
After crumple energy absorption characteristics are undesirable, the replacement for carrying out EMAS cell cube influences to open the navigation or air flight for some busy airports, and
Considerably increase the maintenance cost on airport.
Summary of the invention
In view of this, the main purpose of the present invention is to provide a kind of airfield runway that crumple energy absorption characteristics are steady in a long-term spies
Property material arresting system and preparation method thereof and test device.
To achieve the above object, the present invention provides a kind of airfield runway elastomeric material arresting system, contain following weight
The each component of percentage:
The sum of weight percent of above-mentioned each component is 100%.
Further, wherein the clinker and gypsum are mainly used for substituting the portland cement of existing matured product,
Intensity is provided after aquation, and hydration rate is controllable.It is blended in existing portland cement containing the unknown active mineral of volume
The activity of material, these active mineral admixtures is irregular, and hydration rate is uncontrollable, therefore the first step uses " clinker+gypsum "
Commercially available portland cement is substituted, plays and eliminates uncontrollable active mineral admixture because further hydration is to EMAS crumple energy absorption characteristics
The purpose of influence；
Further, wherein the clinker is levigate clinker, the weight percent composition of size distribution is as follows:
25 μm~40 μm of clinker: 15%~30%；
15 μm~25 μm of clinker: 1%-15%；
3 μm~15 μm of clinker: 49%~69%；
The clinker that 3 μm of <: 10%~14%；
Wherein partial size 3 μm of cement fine graineds below aquation early stage due to particle it is thinner, large specific surface area, aquation speed
Degree is fast, in 1 day can substantially completely aquation, so that Ultralight foam concrete is quickly formed intensity, be not easy the mould that collapses；The content of this part
It is apparently higher than cement made from routine techniques, the cement of routine techniques manufacture, 3 μm of particles below are considered easy to knot groups, it is desirable that
10% is limited in hereinafter, being preferably no.
Partial size is also very fast in 3 μm~15 μm of cement granules hydration rate, for providing stable gain in strength, guarantees to support
EMAS crumple gain in strength is to set interval in the shield phase, and is conducive to the curing of EMAS material before factory, is formed stable strong
Degree；
Partial size primarily serves the effect of optimization size distribution and transition in 15 μm~25 μm of cement granules, and content should control
Within 15%, otherwise will lead to EMAS crumple intensity is more than the upper limit in 8 years.And in conventional technical means, it is desirable to cement
In 15 μm~25 μm of partial sizes granule content it is high as far as possible, to provide stable intensity output.
Partial size is slow in early hydration in 25 μm~40 μm of cement granules, and the aquation and intensity of this part of cement particle are in
Linearly, hydration rate and be to the contribution of intensity and pore structure it is controllable, for dynamically compensation the EMAS later period because of environmental aging
The decline of crumple performance caused by effect；It is designed by above-mentioned gradient aquation, it can be with the crumple energy absorption characteristics of double-direction control EMAS.
This moiety content and cement made from routine techniques are significantly different, the cement of routine techniques manufacture, below containing 40 μm of partial sizes
Particle outside, also contain 45-60 μm and more large-sized component, and in routine techniques generally require by control 45 μm of partial sizes
Tail over the control parameter as daily production.And the cement of 40 μm or more partial sizes is removed in the present invention.
Further, wherein the clinker contains each component of following weight percent:
Further, wherein the clinker contains each component of following weight percent:
Further, wherein the gypsum is dihydrate gypsum.
Further, wherein the inert filler is selected from alumina powder, silica flour, ballast powder, agstone, steel-making slag powder
Or at least one of sandstone powder.It will be slow aquation as age increases, gradually increase concrete strength, this is in the prior art
In be a kind of very useful way, can not only increase late strength of concrete, can also reduce the heat of hydration, reduce cement and use
Amount.The present invention is to set out the other way around, using do not have active inert mineral admixture, including alumina powder, silica flour,
Ballast powder, agstone, steel-making slag powder, sandstone powder etc. do not have active powder, and main function is with inert mineral admixture
" dilution " clinker reduces interference of the admixture to early strength, prevents alkaline matter Ca (OH) after hydrated cementitious2Deng with mix
Close material to chemically react, play the purpose for weakening later strength growth, mechanical property and crumple energy absorption characteristics to EMAS into
The fine fine tuning of row guarantees crumple energy absorption curve under the conditions of EMAS long service situation very narrow at one, highly stable
Interior variation.
Further, wherein the foam stabilizer is selected from methyl cellulose ether (MC), hydroxyethyl ether cellulose (HEC), hydroxyl second
Ylmethyl cellulose ether (HEMC), hydroxypropyl methyl cellulose ether (HPMC), stearate series foam stabilizer, styrene-butadiene emulsion or
At least one of ethene-vinyl acetate fat liquor；The main function of the foam stabilizer is the stability for improving foam, prevents from secreting
Water and sedimentation.
Further, wherein the foaming agent is selected from colophony type foaming agent, surfactant-based foaming agent, plant foaming
At least one of agent, animal class foaming agent, complex class foaming agent, hydrogen, nitrogen, oxygen, hydrogen peroxide or aluminium powder；
Further, wherein the water mainly reacts with cement, make hydrated cementitious, form intensity.
Further, wherein the accelerator is selected from aluminum oxide clinker class accelerator, waterglass class accelerator, aluminate class speed
Solidifying at least one of agent or aluminum sulfate class accelerator；The effect of the accelerator mainly improves the foaming properties after foaming,
The drain of bubble film is reduced, the stabilized foam after foaming forms uniform foam, and keeps the entirety of foam after hardening
Property.
Further, wherein the water-reducing agent is selected from poly carboxylic acid series water reducer, naphthalene water reducer, anthracene based water reducer, wooden
Plain Sulfonates water-reducing agent, humic acid water-reducing agent, sulfamate based water reducer, aliphatic water reducing agent, melamine series diminishing
At least one of agent or coumarone based water reducer；The effect of the water-reducing agent mainly adjusts the rheological property of cement slurry.
The present invention also provides the preparation methods of above-mentioned airfield runway elastomeric material arresting system, comprising the following steps:
1) clinker, gypsum, water-reducing agent are first weighed, is subsequently poured into blender and is uniformly mixed 10-60s；
2) it is added after water and foam stabilizer and 60-600s is first stirred with the revolving speed of 10-600r/min；
3) 60-600s is stirred with the revolving speed of 1000-3000r/min again, foaming agent is added, later with 1000-3000r/
The revolving speed of min stirs 1-60s；
4) slurry for obtaining step 3) pours in mold, quiet to stop paying out bubble；
5) it is sent into demoulding after maintenance 12h-72h in fog room, then proceedes to maintenance to 28d-300d, obtains EMAS with ultralight
Matter foamed concrete material.
Further, wherein in step 4), the slurry that step 3) is obtained is poured in mold, when foaming height reaches
It is quiet to stop 0.5~5h until die tip.
The present invention also provides a kind of electronic universal test devices, are used to test above-mentioned airfield runway elastomeric material and block
The crumple intensity of resistance system, the electronic universal test device include universal testing machine and invading on the universal testing machine
Thorough formed punch.
Further, wherein the penetration formed punch is held on the moving beam of the universal testing machine.
The present invention is from the opposite direction of the prior art, in the prior art using large dosage inert mineral admixture substitution
Usually used " cement+active mineral admixture " forms design, and inert mineral admixture is not had activity, this existing skill
Art is considered that the characteristics of " drawback " is applied in EMAS, dilutes the ratio of this effective cementitious material of clinker, reduces EMAS
The gain in strength in material later period makes the unobvious increase for a long time of crumple energy absorption characteristics.The present invention uses striaght cement from raw material, avoids
Using mixed with the PO ordinary portland cement of active mixed material, PS portland slag cement, PP Portland pozzolana cement and
PF Portland fly ash cement and PC composite Portland cement, to be conducive to eliminate uncontrollable active mineral admixture because of later period water
Change the influence to EMAS crumple energy absorption characteristics.
On the other hand the clinker for using variable grain gradation, in the cement for making relatively fine particle in early days complete water as early as possible
Change, the coarse grained slow aquation dynamic compensation of cement causes crumple energy-absorbing special because of environmental factors such as freeze thawing, carbonization and hole wall dusting
Property decline problem, to realize to the upper and lower bound double regulation controls of the long-term crumple energy absorption characteristics of EMAS.
The invention has the following advantages:
Airfield runway elastomeric material arresting system provided by the invention, can be according to the first standard of design in different distances
On block and stop different types of aircraft, guarantee aircraft and persons on board's safety；
Airfield runway elastomeric material arresting system provided by the invention, moreover it is possible to realize early strength rapid growth, Neng Goubao
Card shortens demoulding time, shortens mold service life, improves production efficiency.
Airfield runway elastomeric material arresting system provided by the invention, have that anti-carbonation, freeze thawing resistance are destroyed, hole wall is fine and close and
It is not pulverized easily feature, has excellent durability to guarantee EMAS during service, improves Years Of Service.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the Mechanics Performance Testing equipment of EMAS Ultralight concrete material of the present invention；
The 180d crumple strength test curve graph of Fig. 2 EMAS of the present invention Ultralight concrete material and comparative example 1-2.
Fig. 3 is the 6th year crumple strength test curve of EMAS Ultralight concrete material of the present invention and comparative example 1-2
Figure；
Fig. 4 A is the section pore structure micrograph of Ultralight concrete of the invention；
Fig. 4 B is the section pore structure micrograph of the Ultralight concrete of comparative example 5；
Fig. 4 C is the section pore structure micrograph of the Ultralight concrete of comparative example 6；
Fig. 5 A is the hole wall structure micrograph of Ultralight concrete of the invention；
Fig. 5 B is the hole wall structure micrograph of the Ultralight concrete of comparative example 5；
Fig. 5 C is the hole wall structure micrograph of the Ultralight concrete of comparative example 6.
Specific embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is described below with reference to embodiment, still
It should be appreciated that these descriptions are only further explanation the features and advantages of the present invention, rather than to the claims in the present invention
Limitation.
Embodiment 1:
By weight percentage, by 24% cement (clinker+gypsum, 25 μm~40 μm: 18%；15 μm~25 μm:
2.5%；3 μm~15 μm: 66%；3 μm: 13.5% of <；), 38% inert filler, 0.7% fiber and 0.3% diminishing
Agent pour into blender be uniformly mixed, be added 28% water, 2.5% foam stabilizer and 2.7% accelerator after first stir 30s slowly,
Mixing speed is 120r/min.It stirs 120s, mixing speed 1250r/min fastly again, 3.8% foaming agent is then added, quickly
Stir 6s.Slurry is poured in 1m × 1m × 0.7m mold, the quiet bubble 4h that stops paying out (is when foaming height reaches die tip
Only, quiet to stop 4h).It is sent into demoulding after maintenance for 24 hours in fog room, maintenance is then proceeded to 28d, obtains EMAS Ultralight foam
Concrete material.
Comparative example 1:
By weight percentage, by 24% P.O ordinary portland cement, 38% inert filler, 0.7% fibre
Dimension and 0.3% water-reducing agent pour into blender be uniformly mixed, be added 28% water, 2.5% foam stabilizer and 2.7% rapid hardening
30s, mixing speed 120r/min are first stirred after agent slowly.Stir 120s fastly again, mixing speed 1250r/min is then added 3.8%
Foaming agent, quickly stir 6s.Slurry is poured in 1m × 1m × 0.7m mold, it is quiet to stop paying out bubble 4h.It is sent into fog room
Demoulding after maintenance for 24 hours then proceedes to maintenance to 28d, obtains EMAS Ultralight foamed concrete material.
Comparative example 2:
By weight percentage, by 24% P.I portland cement, 38% inert filler, 0.7% fiber and
0.3% water-reducing agent pour into blender be uniformly mixed, be added 28% water, 2.5% foam stabilizer and 2.7% accelerator after
30s, mixing speed 120r/min are first stirred slowly.It stirs 120s, mixing speed 1250r/min fastly again, 3.8% hair is then added
Infusion quickly stirs 6s.Slurry is poured in 1m × 1m × 0.7m mold, quiet bubble of stopping paying out is (when foaming height reaches mold
It is quiet to stop 4h until top).It is sent into demoulding after maintenance for 24 hours in fog room, is cut into required size, then proceedes to maintenance extremely
28d obtains EMAS Ultralight foamed concrete material.
As shown in Figure 1, a kind of electronic universal test device includes universal testing machine 1 and is set on the universal testing machine 1
Penetration formed punch 2, the specific structure of the universal testing machine 1 is selected from the prior art, and details are not described herein.When it is implemented, institute
Stating universal testing machine 1 may include that load host 11 and data acquisition and control system 12, the penetration formed punch 2 can pass through fixture
112 be held on it is described load host 11 moving beam 111 on, the fixture 112 as retaining mechanism, can be a chain for binding criminals line
(i.e. screw thread, screw, nut), inclined-plane, eccentric wheel, lever etc. or combinations thereof.It, can be with according to different samples and test force size
Different structures is selected, the test block of big test force generally uses inclined-plane clamping structure, and with the increase of test force, clamping force is therewith
Increase, shoulder sample is using suspended structure etc..The penetration formed punch 2 include for punching press test block 3 pressure head 21 and with the pressure
The connecting rod 22 of first 21 connection；Using diplopore penetration compression test method, using above-mentioned electronic universal test device with constant
The loading velocity of 5mm/s pushes penetration formed punch 2 in the position at the center of any surface of test cube 3, until reaching
Then the compression depth of 65mm promotes penetration formed punch 2, to obtain the crumple intensity of the test block 3.
EMAS is the safety barrage guaranteed to aircraft with Ultralight concrete material, needs to exist its crumple strength control
0.3~0.35MPa, and the provided power of blocking must held stationary when crumple.
The EMAS Ultralight foamed concrete material prepared using the present embodiment 1, crumple strength test test block size
For 100mm × 100mm × 100mm.
1 and comparative example 1,2 EMAS for preparing through the embodiment of the present invention it can be seen from Fig. 2, Fig. 3, it is monthly at 6
Be able to satisfy the requirement of crumple energy absorption characteristics, when EMAS material military service for a period of time, 1 He of comparative example after tracking data shows 6 years
Requirement is not satisfied in the crumple intensity of comparative example 2, has exceeded the control range of 0.3~0.35MPa, and crumple intensity of the invention
Still meet service demand.
Embodiment 2:
By weight percentage, by 24% cement (clinker+gypsum, 25 μm~40 μm: 18%；15 μm~25 μm:
2.5%；3 μm~15 μm: 66%；, 38% inert filler, 0.7% fiber and 0.3% diminishing 3 μm of <: 13.5%)
Agent pour into blender be uniformly mixed, be added 28% water, 2.5% foam stabilizer and 2.7% accelerator after first stir 30s slowly,
Mixing speed is 120r/min.It stirs 120s, mixing speed 1250r/min fastly again, 3.8% foaming agent is then added, quickly
Stir 6s.Slurry is poured in 1m × 1m × 0.7m mold, it is quiet to stop paying out bubble 4h.It is sent into demoulding after maintenance for 24 hours in fog room,
Maintenance is then proceeded to 28d, obtains EMAS Ultralight foamed concrete material.
Comparative example 3:
By weight percentage, by 24% P.O ordinary portland cement, 38% inert filler, 0.7% fibre
Dimension and 0.3% water-reducing agent pour into blender be uniformly mixed, be added 28% water, 2.5% foam stabilizer and 2.7% rapid hardening
30s, mixing speed 120r/min are first stirred after agent slowly.Stir 120s fastly again, mixing speed 1250r/min is then added 3.8%
Foaming agent, quickly stir 6s.Slurry is poured in 1m × 1m × 0.7m mold, it is quiet to stop paying out bubble 4h.It is sent into fog room and supports
Shield rear demoulding for 24 hours, then proceedes to maintenance to 28d, obtains EMAS Ultralight foamed concrete material.
Comparative example 4:
By weight percentage, by 24% P.I portland cement, 38% inert filler, 0.7% fiber and
0.3% water-reducing agent pour into blender be uniformly mixed, be added 28% water, 2.5% foam stabilizer and 2.7% accelerator after
30s, mixing speed 120r/min are first stirred slowly.It stirs 120s, mixing speed 1250r/min fastly again, 3.8% hair is then added
Infusion quickly stirs 6s.Slurry is poured in the mold of design, it is quiet to stop paying out bubble 4h.Maintenance in fog room is sent into tear open afterwards for 24 hours
Mould is cut into required size, then proceedes to maintenance to 28d, obtains EMAS Ultralight foamed concrete material.Using this
The Ultralight concrete of example preparation, tests its water resistance and frost resistance.Water resistance test water absorption rate and loss of strength rate, it is freeze proof
Property test mass loss rate and loss of strength rate.Test block is having a size of 100mm × 100mm × 100mm.
The present invention of table 1 and the water resistance of different comparative example Ultralight concrete materials
The present invention of table 2 and the frost resistance of different comparative example Ultralight concrete materials
By table 1, table 2 as can be seen that the present invention immersion after water absorption rate and loss of strength rate be much smaller than comparative example 1,
Comparative example 2, mass loss rate and loss of strength rate are much smaller than comparative example 1, comparative example 2, i.e., water resistance of the invention after freeze thawing
And freeze-thaw resistance is excellent in comparative example 1, comparative example 2.
Embodiment 3
By weight percentage, by 25% cement (clinker+gypsum, 25 μm~40 μm: 18%；15 μm~25 μm:
2.5%；3 μm~15 μm: 66%；3 μm: 13.5% of <；), 39% inert filler, 0.7% fiber and 0.3% diminishing
Agent pour into blender be uniformly mixed, be added 28% water, 2.3% foam stabilizer and 2.9% accelerator after first stir 30s slowly,
Mixing speed is 120r/min.It stirs 120s, mixing speed 1250r/min fastly again, 3.8% foaming agent is then added, quickly
Stir 6s.Slurry is poured in 1m × 1m × 0.7m mold, it is quiet to stop paying out bubble 4h.It is sent into demoulding after maintenance for 24 hours in fog room,
It is cut into required size, maintenance is then proceeded to 28d, obtains EMAS Ultralight foamed concrete material.
Comparative example 5:
By weight percentage, by 24% P.O ordinary portland cement, 38% inert filler, 0.7% fibre
Dimension and 0.3% water-reducing agent pour into blender be uniformly mixed, be added 28% water, 2.5% foam stabilizer and 2.7% rapid hardening
30s, mixing speed 120r/min are first stirred after agent slowly.Stir 120s fastly again, mixing speed 1250r/min is then added 3.8%
Foaming agent, quickly stir 6s.Slurry is poured in 1m × 1m × 0.7m mold, it is quiet to stop paying out bubble 4h.It is sent into fog room and supports
Shield rear demoulding for 24 hours, is cut into required size, then proceedes to maintenance to 28d, obtain EMAS Ultralight foam concrete material
Material.
Comparative example 6:
By weight percentage, by 24% P.I portland cement, 38% inert filler, 0.7% fiber and
0.3% water-reducing agent pour into blender be uniformly mixed, be added 28% water, 2.5% foam stabilizer and 2.7% accelerator after
30s, mixing speed 120r/min are first stirred slowly.It stirs 120s, mixing speed 1250r/min fastly again, 3.8% hair is then added
Infusion quickly stirs 6s.Slurry is poured in 1m × 1m × 0.7m mold, it is quiet to stop paying out bubble 4h.It is sent into fog room and conserves for 24 hours
Demoulding afterwards is cut into required size, then proceedes to maintenance to 28d, obtains EMAS Ultralight foamed concrete material.
The Ultralight concrete prepared using this example, tests its pore structure.
Fig. 4 A, Fig. 4 B, Fig. 4 C are respectively the section of the Ultralight concrete of the embodiment of the present invention 3, comparative example 5, comparative example 6
Pore structure micrograph (X20)；Fig. 5 A, Fig. 5 B, Fig. 5 C are respectively that the embodiment of the present invention 3, comparative example 5, the Ultralight of comparative example 6 are mixed
Coagulate the hole wall structure micrograph (X150) of soil；It can be seen that the pore size distribution of the embodiment of the present invention 3 is compared by Fig. 4 A, Fig. 4 B, Fig. 4 C
More uniform in the pore size distribution of comparative example 5, comparative example 6, hole shape is relatively round, can be seen that from Fig. 5 A, Fig. 5 B, Fig. 5 C of the invention real
The hole wall for applying example 3 is comparatively dense compared to the hole wall of comparative example 5, comparative example 6.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, according to
According to technical spirit any simple modification, equivalent change and modification to the above embodiments of the invention, this hair is still fallen within
In the range of bright technical solution.
Claims (12)
1. a kind of airfield runway elastomeric material arresting system, which is characterized in that each component containing following weight percent:
The sum of weight percent of above-mentioned each component is 100%.
2. airfield runway elastomeric material arresting system as described in claim 1, which is characterized in that the clinker is levigate
The weight percent composition of clinker, size distribution is as follows:
25 μm~40 μm of clinker: 15%~30%；
15 μm~25 μm of clinker: 1%-15%；
3 μm~15 μm of clinker: 49%~69%；
The clinker that 3 μm of <: 10%~14%.
3. airfield runway elastomeric material arresting system as claimed in claim 2, which is characterized in that the clinker contain as
The each component of lower weight percent:
4. airfield runway elastomeric material arresting system as described in claim 1, which is characterized in that the gypsum is two water stones
Cream；The inert filler in alumina powder, silica flour, ballast powder, agstone, steel-making slag powder or sandstone powder at least one
Kind.
5. airfield runway elastomeric material arresting system as described in claim 1, which is characterized in that the foam stabilizer is selected from methyl
Cellulose ether, hydroxyethyl ether cellulose, ethoxyl methyl cellulose ether, hydroxypropyl methyl cellulose ether, stearate series are steady
At least one of infusion, styrene-butadiene emulsion or ethene-vinyl acetate fat liquor.
6. airfield runway elastomeric material arresting system as described in claim 1, which is characterized in that the foaming agent is selected from rosin
Type foaming agent, surfactant-based foaming agent, plant foaming agent, animal class foaming agent, complex class foaming agent, hydrogen, nitrogen,
At least one of oxygen, hydrogen peroxide or aluminium powder.
7. airfield runway elastomeric material arresting system as described in claim 1, which is characterized in that the accelerator is selected from alumina
At least one of clinker class accelerator, waterglass class accelerator, aluminate class accelerator or aluminum sulfate class accelerator.
8. airfield runway elastomeric material arresting system as described in claim 1, which is characterized in that the water-reducing agent is selected from poly- carboxylic
Sour based water reducer, naphthalene water reducer, anthracene based water reducer, lignin sulfonate water-reducing agent, humic acid water-reducing agent, sulfamate
At least one of based water reducer, aliphatic water reducing agent, melamine system water reducer or coumarone based water reducer.
9. a kind of preparation method of the described in any item airfield runway elastomeric material arresting systems of claim 1-8, feature exist
In, comprising the following steps:
1) clinker, gypsum, water-reducing agent are first weighed, is subsequently poured into blender and is uniformly mixed 10-60s；
2) it is added after water and foam stabilizer and 60-600s is first stirred with the revolving speed of 10-600r/min；
3) 60-600s is stirred with the revolving speed of 1000-3000r/min again, foaming agent is added, later with 1000-3000r/min's
Revolving speed stirs 1-60s；
4) slurry for obtaining step 3) pours in mold, quiet to stop paying out bubble；
5) it is sent into demoulding after maintenance 12h-72h in fog room, maintenance is then proceeded to 28d-300d, obtains EMAS and steeped with Ultralight
Foam concrete material.
10. preparation method as claimed in claim 9, which is characterized in that in step 4), the slurry that step 3) is obtained is poured
It is quiet to stop 0.5~5h until foaming height reaches die tip in mold.
11. a kind of electronic universal test device is used to test the described in any item airfield runway elastomeric materials of claim 1-8
The crumple intensity of arresting system, which is characterized in that the electronic universal test device include universal testing machine and be set to described ten thousand
Penetration formed punch on energy testing machine.
12. electronic universal test device as claimed in claim 11, which is characterized in that the penetration formed punch is held on described ten thousand
On the moving beam of energy testing machine.
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| CN110078437B (en) | 2021-08-10 |
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