CN104493972B - Preparation method for the floating concrete component of floating island construction - Google Patents

Preparation method for the floating concrete component of floating island construction Download PDF

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Publication number
CN104493972B
CN104493972B CN201410655742.8A CN201410655742A CN104493972B CN 104493972 B CN104493972 B CN 104493972B CN 201410655742 A CN201410655742 A CN 201410655742A CN 104493972 B CN104493972 B CN 104493972B
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manufacture method
cement
floating concrete
floating
slurry
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CN104493972A (en
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徐惠忠
王海涛
赵君才
董才翔
田茂春
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Yantai University
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Yantai University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/02Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The present invention relates to a kind of manufacture method of the floating concrete component for floating island construction, a kind of floating body material members that can be used for building permanent non-maintaining artificial floating island are provided, the floating concrete component of gained is mainly characterized by the loose structure concrete component that a kind of inner homogeneous is dispersed with a large amount of dead-end pores.It is an advantage of the invention that:Securely and reliably, it is widely applicable.

Description

Preparation method for the floating concrete component of floating island construction
Technical field
The invention belongs to marine ecology facility constructing technology field.A kind of building technology of man-made island is specifically related to, it is special It is not a kind of preparation method for the floating concrete component for being used to build permanent non-maintaining artificial floating island.
Background technology
At present, in order to expand the living space of the mankind, people are just considering to make full use of wide ocean, build artificial floating Island, using as agricultural, fishery, aquatic products processing, vacation tourism, oil exploitation, so that the platform garrisoned.But so far, manually The main structural form of floating island is nothing more than two kinds:A kind of is to utilize discarded ship, or based on newly-built ocean platform, is added Formed with appropriate reconstruction and fixation.The artificial floating island of this structural form, its principle are essentially all to be surrounded using steel plate Cavity structure produces buoyancy, and its advantage is sound construction, and capacity of anti-storm is strong, and its shortcoming is that construction and maintenance cost are higher, especially It is to prevent cavity structure water inlet, sinking, it is necessary to very strict Seal Design, and needs continual maintaining;Separately A kind of raft is by the use of fluid-tight foam porous material as floating body, so as to provide buoyancy for floating island.This structure The artificial floating island made, its advantage is to be not required to worry to cause to sink because of local damage, therefore construction and maintenance cost are relatively It is low, but so far, used foam porous material is mainly foamed plastics, and because its property is soft, force-bearing property is poor, and durability It is bad, thus the more tranquil shallow sea of the water surface can only be used as make provisional raft being used, it is impossible to suitable for seawater it is relatively deep, The larger extensive ocean of stormy waves.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide one kind can be used for fast construction low cost, height durable Property, the floating concrete component preparation method of non-maintaining artificial floating island.Using the present invention, large area, low cost, fast can be achieved Speed builds artificial floating island, and its is safe and reliable, widely applicable, can effectively make up the deficiencies in the prior art.
The present invention solve above-mentioned technical problem technical scheme be:
For the manufacture method of the floating concrete component of floating island construction, comprise the following steps:Build main frame;Make Steel reinforcement cage;Fixed steel bars cage is simultaneously connected with main frame;Branch permanent template;Pour special floating concrete;Wrapping and last phase tidying up.
Foregoing manufacture method, preferable scheme are that described main frame is formed by connecting by shaped steel or timber Load-carrying construction framework, be made up of entablature, sill, web member, column, the part of landing beam five.Wherein described shaped steel is groove Steel or I-steel, preferably channel-section steel, described timber are straight round log or the lumps of wood, the preferably lumps of wood.It is described build refer to according to Design drawing is integrally welded by steel entablature, sill, web member, column, landing beam, or by wooden entablature, sill, Web member, column, landing beam curium are connected into one.Described entablature, sill, web member, column, the specification of landing beam are according to drift The area on chinampa and applicable seawater operating mode, depending on Mechanics Calculation.History wave it is tall and big in 3m marine usage when, preferably by Shaped steel is built.
Foregoing manufacture method, preferable scheme are that when making steel reinforcement cage, four side bar diameters are not less than 8mm, Interval is not less than 200mm;Internal bar diameter is not less than 6mm, and spacing is 200mm-400mm (preferably 300mm), steel reinforcement cage 50mm is not should be greater than with the spacing of permanent template.What the appearance and size of the steel reinforcement cage surrounded with entablature, sill and web member The space of falling prismatic table shape is consistent.
Foregoing manufacture method, preferable scheme be, fixed steel bars cage is simultaneously connected with main frame and refers to do not having Before making column and landing beam, above-mentioned ready-made steel reinforcement cage is positioned over to be fallen by what entablature, sill and web member surrounded In prismatic table shape space, and the reinforcing bar of steel reinforcement cage surrounding is welded or tied up with main frame and is connected.
Foregoing manufacture method, preferable scheme are that permanent template used is inorfil cement plate (chrysotile Cement plate or fiberglass reinforced sulphate aluminium cement plate) or glass epoxy.More preferred is, the inorfil cement thickness of slab Spend for 15mm-30mm, preferably 20mm-25mm.The glass epoxy thickness is 8mm-18mm, preferably 10mm-15mm.Described branch Permanent template, refer to the sill and web member that above-mentioned inorfil cement plate or glass epoxy are fixed to main frame with bolt On, surround up big and down small, bottom and all round closure, upper opening, inside is filled with the prismatic table shape of steel reinforcement cage or truncated cone-shaped pours Chamber.
Foregoing manufacture method, preferable scheme are that described special floating concrete formulation is:Closed-cell foam Plastic grain loose volume 0.8-0.9m3, cement 300-350kg, 0~50kg of mineral admixture, tackifier 0.6-3.5kg, prevent Aqua 0.6-3.5kg, foaming agent about 0.2-0.5kg, additional cement consumption 0.05%-0.15%, 1.5%-2.5% and 1.5%- 2.0% coupling agent, foam stabilizer and accelerator for hardening, it is 0.45~0.50 to control ratio of water to material.The production of the special floating concrete Technique is:First coupling agent is dissolved in the water, the water dissolved with coupling agent and closed cell plastic foam grain are then put into mixer Inside it is stirred;Then cement, mineral admixture and accelerator for hardening are sequentially added in stirring, when stirring substantially uniform, Continuation sequentially adds waterproofing agent, tackifier under agitation;At the same time, foaming agent and foam stabilizing agent solution are placed in foaming machine; When the material in above-mentioned mixer uniformly mixes, and in after mobility slurry, start material of the foaming machine into above-mentioned mixer Foam is filled in slurry, until the slurry in mixer reaches volume capacity set in advance, and continues 1~2min of stirring, produces Special floating concrete slurry.The special floating concrete of described pouring refers to wriggle above-mentioned special floating concrete slurry Infusion enters in the cavity surrounded by permanent template.Special floating concrete slurry obtained above is placed in humid air and kept 14~28d, or be placed in 12~24h of holding in 95~100 DEG C of steam, that is, obtain special floating concrete.
Foregoing manufacture method, preferable scheme be, special floating concrete used, and its technical performance is: Bulk density 350kg/m3-450kg/m3, preferably 400kg/m3Left and right;Compression strength is more than 1.5MPa, and rupture strength is not less than 0.6MPa, water absorption rate is less than 3%, and water absorption rate is no more than 5% under 10m water column pressures, loss of strength after 25 Frozen-thawed cycleds No more than 8%, mass loss is not more than 3%.
Foregoing manufacture method, preferable scheme are that described wrapping refers to:With the glass for being impregnated with epoxy resin Glass fiber band, around permanent template, completely wrap up 2~3.Described last phase tidying up refers to main structure anticorrosive coating, laying Deck and structures etc..
Brief description of the drawings
Fig. 1 is the outward appearance and composition schematic diagram of the main frame of embodiment 1.In figure:1- entablatures;2- sills;3- web members;4- Column;5- landing beams;6- decks;7- floats concrete block;8- disappears power passage;9- returns hydrospace.
Fig. 2 is that embodiment 1 floats concrete monoblock and its arrangement of reinforcement schematic diagram.In figure:10- steel reinforcement cages;11- steel reinforcement cages with Main frame overlaps;12- permanent templates.
Fig. 3 is the middle part floatation unit connected mode schematic diagram of embodiment 1.In figure:13- connecting strands;14- cushion pads;15- Movable bridging piece;16- wave resistance screens;17- folds Tarpauling.
Fig. 4 is the technological process of production schematic diagram for floating concrete.
Embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Embodiment is used for the manufacture method of the floating concrete component of floating island construction, and step is:
(1) main frame is built.With 5# channel-section steels, according to design size, welding entablature 1, sill 2, web member 3, column 4, Landing beam 5, structure main frame as shown in Figure 1 is formed, and position is surrendered in each girder steel, with 30mm~50mm, preferably Triangular steel plate thick 40mm, is bolted reinforcing.
(2) steel reinforcement cage (as shown in Figure 2) is made.Four side bar diameters are not less than 8mm, and interval is not less than 200mm;It is internal Bar diameter is not less than 6mm, and spacing is 200mm-500mm (preferably 400mm).The crosspoint of every two reinforcing bars, uses spot welding Method or strapping are fixed.The space of falling prismatic table shape that the profile of steel reinforcement cage should surround with entablature, sill and web member is basically identical, And small 5mm~10mm in size.
(3) fixed steel bars cage.The steel reinforcement cage that will be made, lift into main frame corner by entablature 1, sill 2 and abdomen In the space of falling prismatic table shape that bar 3 surrounds, and the reinforcing bar of steel reinforcement cage surrounding and main frame overlap joint are welded.
(4) to permanent template.Above-mentioned inorfil cement plate or glass epoxy are fixed to the lower horizontal stroke of main frame with bolt On beam and web member, surround up big and down small, bottom and all round closure, upper opening, the internal prismatic table shape of falling for being filled with steel reinforcement cage are poured Build chamber.Wherein inorfil cement plate thickness is 15mm-30mm, preferably 20mm-25mm.
(5) make and pour floating concrete.It is special floating concrete formulation be:Closed cell foamed plastic particle loose volume 0.8-0.9m3, cement 300-350kg, 0~50kg of mineral admixture, tackifier 0.6-3.5kg, waterproofing agent 0.6-3.5kg, bubble Foam agent about 0.2-0.5kg is additional cement consumption 0.05%-0.15%, 1.5%-2.5% and 1.5%-2.0% coupling agent, steady Infusion and accelerator for hardening, it is 0.45~0.50 to control ratio of water to material.It is special floating concrete production technology be:First coupling agent is dissolved Yu Shuizhong, then by the water dissolved with coupling agent with being stirred in closed cell plastic foam grain input mixer;Then exist Cement, mineral admixture and accelerator for hardening are sequentially added in stirring, when stirring substantially uniform, continuation sequentially adds anti-under agitation Aqua, tackifier;At the same time, foaming agent and foam stabilizing agent solution are placed in foaming machine;When the material in above-mentioned mixer is equal Even mixing, and in after mobility slurry, start in slurry of the foaming machine into above-mentioned mixer and fill foam, until mixer Interior slurry reaches volume capacity set in advance, and continues 1~2min of stirring, produces special floating concrete slurry.Then Injected with peristaltic pump in the steel reinforcement cage in the cavity surrounded by permanent template.
(6) maintenance, wrapping and last phase tidying up.Concrete slurry is floated, through 14~28d normal temperature moisture-keeping maintaining or 12~24h 95~100 DEG C of steam curing after, its technical performance is:Bulk density 350kg/m3-400kg/m3, preferably 375kg/ m3Left and right;Compression strength is more than 1.5MPa, and rupture strength is not less than 0.6MPa, and water absorption rate is less than 3%, and in 10m water column pressures Lower water absorption rate is not more than 5%, and no more than 8%, mass loss is not more than 3% for loss of strength after 25 Frozen-thawed cycleds.Then, with leaching Stain has the glass fiber tape of epoxy resin, around permanent template surrounding, complete firm wrapping 2~3.It is every exposed Steel, first with conversion and prevention paint of rust full coat one time, then with the brushing of epoxy zinc-rich paint together, preferably to whole component surface, comprehensively spray Apply one of marine antifouling coating.
The present invention is to provide a kind of floating body material members that can be used for building permanent non-maintaining artificial floating island Preparation method, it is mainly characterized by the loose structure concrete component that a kind of inner homogeneous is dispersed with a large amount of dead-end pores.This structure Part is made up of main frame, floating concrete, permanent template and the part of arrangement of reinforcement four, wherein the bulk density of floating concrete block is general For 400kg/m3-480kg/m3, desirably no more than 450kg/m3Left and right, compression strength are more than 1.5MPa, and tensile strength is more than 0.8MPa, modulus of elasticity 1.2MPa or so, Poisson's ratio 0.2 or so, it is less than 3% more than water absorption rate, and is inhaled under 10m water column pressures Water rate is not more than 5%;Loss of strength is not more than 10% after 25 Frozen-thawed cycleds, and mass loss is not more than 2%.Flotation members it is total Constitution metric density is not more than 500kg/m3, bending strength is not less than 15MPa.When permanent template is cement plate, bulk density is 1500kg/m3-2000kg/m3, generally 1800kg/m3Left and right, rupture strength are more than 20MPa, and water absorption rate is less than 2.5%, bulking Rate is less than 0.12%, and contract with dry rate is less than 0.09%;During with glass epoxy, thickness 8mm-18mm, tensile strength is more than 95MPa, bending strength are more than 180MPa, and impact work is more than 50kJ/m2.The general Φ 6mm of arrangement of reinforcement or Φ 8mm plain bars, it is excellent Elect Φ 6mm galvanizing steels as.
The production technology of floating concrete used of the invention
1. plastic foam grain concrete
(1) technological process of production is as shown in Figure 4.
(2) raw material select:
Polystyrene foam grain may be selected in closed cell foamed plastic;Portland cement, volcano can be selected in cement Grey matter portland cement, Portland fly ash cement, sulfate-resistant cement etc., preferably sulfate-resistant cement;Mineral admixture Flyash, volcanic ash, silicon ash etc., preferably silicon ash can be selected.Polyvinyl alcohol, polyvinyl acetate, fiber can be selected in tackifier Plain ether etc., preferably polyvinyl alcohol.Stearic acid system waterproofing agent, silicon-type waterproofing agent, water soluble resin class, which can be selected, in waterproofing agent prevents Aqua etc., it is the most frequently used for stearates waterproofing agent.Foaming agent can be selected gum rosin foaming agent, vegetable protein foaming agent, move Thing protein foaming agent, petroleum sulfonate foaming agent, and the physical foam agent of various Compositional types.Foam stabilizer can be selected silicones, Fatty alcohol, polyamide, solvable oleic acid etc..Villaumite, solvable sulfate, nitrite, triethanolamine etc. can be selected in accelerator for hardening.Coupling Silane coupler, titanate coupling agent, phosphate coupling agent can be selected in agent, and advanced higher fatty acid derivative also can be selected and be coupled Agent, preferably silane coupler.Water can use natural fresh water.
(3) match ratio is (with 1m3Plastic foam grain concrete meter):
Closed cell foamed plastic particle loose volume 0.8-0.9m3, cement 300-350kg, 0~50kg of mineral admixture, increase Stick 0.6-3.5kg, waterproofing agent 0.6-3.5kg, foaming agent about 0.2-0.5kg, additional cement consumption 0.05%-0.15%, 1.5%-2.5% and 1.5%-2.0% coupling agent, foam stabilizer and accelerator for hardening, it is 0.45~0.50 to control ratio of water to material.
(4) technological parameter:
Slurry mixer rotating speed 300r/min-500r/min, mixing time:8-10min;Foaming agent concentration of aqueous solution 2.0%~2.5%, foaming machine air pressure 0.6MPa~0.8MPa;After pouring into the mold, under 15~35 DEG C of normal temperature condition conserve 28~ 14d, 12~24h is conserved in 95~100 DEG C of steam.
(5) technical process (such as Fig. 4):
First coupling agent is dissolved in the water, the water dissolved with coupling agent and closed cell plastic foam grain are then put into mixer Inside it is stirred;Cement, mineral admixture and accelerator for hardening are sequentially added under agitation, when stirring substantially uniform, are continued Waterproofing agent, tackifier are sequentially added under agitation;At the same time, by the foaming agent and foam stabilizer of 2.0%~2.5% (volume ratio) Solution is placed in foaming machine;When the material in above-mentioned mixer uniformly mixes, and in after mobility slurry, start foaming machine to Foam is filled in slurry in above-mentioned mixer, until the slurry in mixer reaches volume capacity set in advance, and is continued 1~2min is stirred, produces special floating concrete slurry.Then the steel injected with peristaltic pump in the cavity surrounded by permanent template In muscle cage, after slight vibration or agitation, carrying out late maintaining can condense to float concrete block.
Float the installation of concrete component:
The floating concrete component that will have been conserved, by main frame, floating concrete, permanent template and the part group of arrangement of reinforcement four Into.Wherein, it is the floating body of porous foam structure at the 7 of Fig. 1, is the power passage 8 that disappears between floating body.Each component can group The floatation unit independent into one.
When needing to build the larger floating island of area, connection can be passed through by floatation unit one by one in the way of Fig. 3 Rope 13 and buffer stopper 14 are joined to one another.In the periphery of whole floating island, can be gone along with sb. to guard him with wave resistance screen 16, and it is anti-with folding Water canvas 17 connects inner flexible edge and movable bridging piece 15.After deck 6 are being laid on landing beam, just forming one can For human living and the place of production operation.
Due to this floating island, inside each floatation unit and between two floatation units, the substantial amounts of power that disappears is reserved with Passage 8, and form with making somebody a mere figurehead area by column 4 under deck 6 and return hydrospace 9 and connect, when running into larger wave, pass through The system can be eliminated substantial amounts of wave energy.
Case study on implementation:
Build area sea situation be:Mean depth 30m, historical high wave high 4.2m, maximum wind velocity 10.8m/s.
Floating island is in subcircular on general layout, is flexible coupling by more than 100 flotation members and formed, gross area 10000m2
Used construction scheme is as follows:
(1) calm weather is selected, is transported with freighter near flotation members to floating island construction site, with crane by one Each and every one flotation members hang in it is marine, it is first that first component work that casts anchor is interim fixed after towing to construction location with barge, so Afterwards, second component is bolted on first component using 19# anchor chains steel loop as connecting strand 13, by that analogy, will be all Flotation members link together.On each steel loop rope, hang with two 315/80R22.5 type waste tire of automobile and make cushion pad 14。
(2) in the flotation members positioned at floating island edge, respectively along 0 °, 45 °, 90 °, 135 °, 180 °, 225 °, 270 °, 315 ° of orientation are installed by 8 hoist engines and anchor cable system.First anchorage is pulled on the extended line in above-mentioned each orientation with primary feeder, according to Equidistant place is cast anchor with the depth of water, and 8 hoist engines of collaboration are tensioned anchor chain together.
(8) anti-corrosion wood board bar is finally laid on landing beam 5, is watched close with steel nail, forms deck 6.At the edge of floating island The outside of flotation members, ribbing galvanized steel plain sheet well prepared in advance is installed, as wave resistance screen 16, and two flotation members it Between wave resistance screen 16 between, installation concertina fold canvas 17.
After the completion of floating island is built, lightweight board house can be being built thereon and other facilities are installed.
Implementation result:The total height of floating island is 4.65m, and Light Draft depth 3m, loading capacity is 7200 tons, per m2Load-carrying 720kg.Operation 1 year, nothing is toppled, fractureed, damage phenomenon occurs.Period record meets maximum wind velocity 8.4m/s, the high 3.5m of wave, drift Chinampa maximum transversal drift offset distance 2.5m, maximum vertical relief height is 0.35m, and maximum cradle angle degree partially is 1 ° 09 ".Floating island is every m2750 yuan of cost, every mu of equivalent 500,000 yuan of cost.
The floating island is used for marine aquatic products processing, can directly extracting seawater washed, washes be directly discharged into it is marine, So as to reduce freight, 80,000,000 yuan of fund can be saved year.
It should be pointed out that embodiment is the optimal embodiment of the present invention, this hair is not limited to Bright, although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still Technical scheme described in foregoing embodiments can be modified, or which part technical characteristic is equally replaced Change.Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in the present invention Protection domain within.

Claims (11)

1. the manufacture method of the floating concrete component for floating island construction, it is characterised in that comprise the following steps:(1) take Build main frame;The main frame be by shaped steel welding or the load-carrying construction framework that connects of timber curium, by entablature, sill, Web member, column, the part of landing beam five composition;(2) steel reinforcement cage is made;The side bar diameter of steel reinforcement cage four is not less than 8mm, interval Not less than 200mm;Internal bar diameter is not less than 6mm, spacing 200mm-400mm;(3) fixed steel bars cage and with main frame connect Connect:Before no making column and landing beam, steel reinforcement cage is positioned over to the chamfered edge platform surrounded by entablature, sill and web member In shape space, and the reinforcing bar of steel reinforcement cage surrounding is welded or tied up with main frame and is connected;(4) branch permanent template;Described Zhi Yong Long template, refer to inorfil cement plate or glass epoxy are fixed on the sill and web member of main frame with bolt, surround Up big and down small, bottom and all round closure, upper opening, inside is filled with the prismatic table shape of steel reinforcement cage or truncated cone-shaped pours chamber;(5) pour Special floating concrete is filled, the special floating concrete formulation is:Closed cell foamed plastic particle loose volume 0.8-0.9m3, Cement 300-350kg, 0~50kg of mineral admixture, tackifier 0.6-3.5kg, waterproofing agent 0.6-3.5kg, foaming agent 0.2- 0.5kg, additional coupling agent, foam stabilizer and accelerator for hardening, coupling agent dosage are used for 0.05%-0.15%, the foam stabilizer of cement consumption The 1.5%-2.5% for cement consumption is measured, accelerator for hardening dosage is the 1.5%-2.0% of cement consumption, and it is 0.45 to control ratio of water to material ~0.50;(6) wrapping and last phase tidying up.
2. manufacture method according to claim 1, it is characterised in that step (2) described spacing is 300mm.
3. manufacture method according to claim 1, it is characterised in that the appearance and size of step (2) described steel reinforcement cage with it is upper The space of falling prismatic table shape that crossbeam, sill and web member surround is consistent.
4. manufacture method according to claim 1, it is characterised in that permanent template used in the step (4) is inorganic fibre Tie up cement plate or glass epoxy.
5. manufacture method according to claim 4, it is characterised in that the inorfil cement plate is chrysotile cement plate Or fiberglass reinforced sulphate aluminium cement plate.
6. manufacture method according to claim 4, it is characterised in that the inorfil cement plate thickness is 15mm- 30mm。
7. manufacture method according to claim 4, it is characterised in that the glass epoxy thickness is 8mm~18mm.
8. manufacture method according to claim 1, it is characterised in that the step (5), which pours special floating concrete, is Refer to and inject special floating concrete slurry in the cavity surrounded by permanent template with peristaltic pump.
9. manufacture method according to claim 8, it is characterised in that it is described it is special floating concrete production technology be: First coupling agent is dissolved in the water, then by the water dissolved with coupling agent with being subject in closed cell foamed plastic particle input mixer It is stirred;Then cement, mineral admixture and accelerator for hardening are sequentially added in stirring, when stirring substantially uniform, is continued Waterproofing agent, tackifier are sequentially added under stirring;At the same time, foaming agent and foam stabilizing agent solution are placed in foaming machine;When above-mentioned Material in mixer uniformly mixes, and in after mobility slurry, starts in slurry of the foaming machine into above-mentioned mixer and add Foam is noted, until the slurry in mixer reaches volume capacity set in advance, and continues 1~2min of stirring, produces special drift Floating concrete slurry, special floating concrete slurry obtained above is placed in 14~28d of holding in humid air, or is placed in 95 12~24h is kept in~100 DEG C of steam, that is, obtains special floating concrete.
10. manufacture method according to claim 8, it is characterised in that it is described it is special floating concrete technical performance be: Bulk density 350kg/m3-450kg/m3;Compression strength is more than 1.5MPa, and rupture strength is not less than 0.6MPa, and water absorption rate is less than 3%, and water absorption rate is not more than 5% under 10m water column pressures, loss of strength is no more than 8% after 25 Frozen-thawed cycleds, mass loss No more than 3%.
11. manufacture method according to claim 1, it is characterised in that the wrapping described in the step (6) refers to:With leaching Stain has the glass fiber tape of epoxy resin, around permanent template, completely wraps up 2~3;Described last phase tidying up refers to main knot Structure anticorrosive coating, laying deck and structures.
CN201410655742.8A 2014-11-08 2014-11-08 Preparation method for the floating concrete component of floating island construction Expired - Fee Related CN104493972B (en)

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