CN106638698B - A kind of recyclable well lid of anti-corrosion - Google Patents
A kind of recyclable well lid of anti-corrosion Download PDFInfo
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- CN106638698B CN106638698B CN201610931351.3A CN201610931351A CN106638698B CN 106638698 B CN106638698 B CN 106638698B CN 201610931351 A CN201610931351 A CN 201610931351A CN 106638698 B CN106638698 B CN 106638698B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
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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
- C04B28/36—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 sulfur, sulfides or selenium
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Abstract
The present invention provides a kind of recyclable well lids of anti-corrosion, including lid and bourrelet, the shape of the lid is patty, the bourrelet is located at the bottom of lid, the shape of the bourrelet is cylindrical shape, the central axes of the lid and bourrelet coincide, the lid includes surface layer and inner layer, it is provided with steel skeleton in the inner layer, the steel skeleton includes the shaped steel that shape is groined type, it is set to the top steel wire on shaped steel top, the lower part steel wire for being set to shaped steel lower part and the steel hoop for being set to shaped steel periphery, the face layer is set to the upper surface of inner layer and the outer surface of steel hoop, the face layer is made of the fine sand slurry added with modified sulfur, the inner layer and bourrelet are made of the thermoplasticity concrete added with modified sulfur.Structure of the invention is novel in design, and rationally manufacturing process is simple, and antiseptic property, compression strength, tensile strength, anti-fatigue life of well lid etc. are had excellent performance, applied widely, highly practical, and using effect is good, convenient for promoting.
Description
Technical field
The present invention relates to a kind of well lids, more particularly, to a kind of recyclable well lid of anti-corrosion.
Background technology
For a long time, municipal administration manhole cover in China's generally uses Cast Iron Production, and material cost is high, high energy consumption, and pollution is high,
Product itself resistance to corrosion is poor, and especially stolen solution never, often results in hidden trouble of traffic and personal injury, produced to society
Raw influence of being discord.
Well lid product has following several at present：Casting iron well lid, cement well lid, composite drain cover etc..Casting iron well lid cost
Height, not anti-corrosion, and it is easily stolen；Cement well lid freezing-thawing resistance is poor, carries force difference, anti-fatigue life is short, on the ground for having acid-alkali salt
Point is easily corroded, and becomes building waste after damage；Composite drain cover carries force difference, in outdoor creep easy to aging, easily causes
Safety accident.
Invention content
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of anti-corrosion can return
Receive well lid.The well lid is made of face layer, inner layer and the bourrelet of anti-corrosion material, therefore has excellent anticorrosive anticorrosive property
Can, and the steel skeleton construction being made of shaped steel, top steel wire and lower part steel wire and steel hoop is provided in well lid, make
Compression strength, tensile strength, the anti-fatigue life etc. for obtaining well lid are had excellent performance.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of recyclable well lid of anti-corrosion, feature exist
In, including lid and bourrelet, the shape of the lid is patty, and the bourrelet is located at the bottom of lid, the centering
The shape in portion is cylindrical shape, and the central axes of the lid and bourrelet coincide, and the lid includes surface layer and inner layer, in described
Be provided with steel skeleton in layer, the steel skeleton include the shaped steel that shape is groined type, the top steel wire for being set to shaped steel top,
The lower part steel wire for being set to shaped steel lower part and the steel hoop for being set to shaped steel periphery, the face layer are set to the upper surface of inner layer
And the outer surface of steel hoop, face layer are made of the fine sand slurry added with modified sulfur, the inner layer and bourrelet by
Thermoplasticity concrete added with modified sulfur is made.
A kind of above-mentioned recyclable well lid of anti-corrosion, which is characterized in that the handle aperture convenient for lifting is offered on the lid,
The quantity of the handle aperture is two, and two handle apertures are symmetrically disposed on the left and right sides of lid central axes.
The above-mentioned recyclable well lid of a kind of anti-corrosion, which is characterized in that the shaped steel is arbitrary in angle steel, channel steel and quarter bend
A combination of one or more.
The above-mentioned recyclable well lid of a kind of anti-corrosion, which is characterized in that carve and be equipped with for anti-skidding decorative pattern, text on the face layer
Word or groove.
A kind of above-mentioned recyclable well lid of anti-corrosion, which is characterized in that the shaped steel and top steel wire, lower part steel wire with
And by being welded to connect between steel hoop.
The above-mentioned recyclable well lid of a kind of anti-corrosion, which is characterized in that the preparation method of the modified sulfur is：By sulphur plus
Heat to complete melting, then by the sulphur of molten state and modifying agent under conditions of temperature is 125 DEG C~146 DEG C reaction 1h~
2h, obtains modified sulfur, and the modifying agent is dicyclopentadiene or polysulfide rubber, or is dicyclopentadiene and cyclopentadiene
The mass ratio of oligomer, the sulphur and dicyclopentadiene is 100: the mass ratio of (4~7), the sulphur and polysulfide rubber is
100: (1.5~4), the sulphur are 100 with the mass ratio of dicyclopentadiene and the oligomer of cyclopentadiene: (4~7).
A kind of above-mentioned recyclable well lid of anti-corrosion, which is characterized in that the preparation of the fine sand slurry added with modified sulfur
Method is：Fine aggregate is heated to 130 DEG C~150 DEG C, then the modified sulfur is added in the fine aggregate of heating and stirs
It is even, it obtains the fine sand added with modified sulfur and starches；The fine aggregate refer to granularity 1mm river sands below, artificial sand, slag or
The volume ratio of molybdenum ore slag, the modified sulfur and fine aggregate is 1: (1.5~1.9).
A kind of above-mentioned recyclable well lid of anti-corrosion, which is characterized in that the thermoplasticity concrete added with modified sulfur
Preparation method be：It will be preheated to 125 DEG C~148 DEG C of aggregate, fiber and the modified sulfur of molten condition is heated to and pours into
It in stirring container, is stirred evenly under 125 DEG C~146 DEG C constant temperatures, obtains the thermoplasticity concrete added with modified sulfur；
The volume of the modified sulfur is the 10%~26% of the thermoplasticity volume of concrete, and the volume of the fiber is the thermoplastic
The 1%~6% of property volume of concrete, the aggregate includes coarse aggregate, fine aggregate and powder filler, and the volume of the coarse aggregate is
The volume of the 28%~46% of the thermoplasticity volume of concrete, the fine aggregate is the thermoplasticity volume of concrete
19.5%~38%, the volume of the powder filler is the 8%~15% of the thermoplasticity volume of concrete, the fine aggregate with
The volume ratio of coarse aggregate is (0.42~1): 1；The volume ratio of the modified sulfur and powder filler is (0.8~2.3): 1.
The above-mentioned recyclable well lid of a kind of anti-corrosion, which is characterized in that the fiber is carbon fiber, steel fibre or glass fibers
Dimension.
The above-mentioned recyclable well lid of a kind of anti-corrosion, which is characterized in that the coarse aggregate is mixed by the raw material of following volumes part
Uniformly form：First coarse aggregate, 50~99 parts by volume, 1~40 parts by volume of the second coarse aggregate, 0~49 parts by volume of third coarse aggregate；
The grain size D of first coarse aggregate1For 15mm ＜ D1The grain size of≤25mm, the second coarse aggregate are D2For 8mm ＜ D2≤ 15mm, third are thick
The grain size of aggregate is D3For 5mm ＜ D3≤8mm；The fine aggregate is uniformly mixed by the raw material of following volumes part and is formed：First thin bone
Expect 20~49.5 parts by volume, 50~79.5 parts by volume of the second fine aggregate, 0.5~30 parts by volume of third fine aggregate；First fine aggregate
Grain size d1For 2mm ＜ d1≤ 5mm, the grain size d of the second fine aggregate2For 0.5mm ＜ d2≤ 2mm, the grain size d of third fine aggregate3For
0.3mm ＜ d3≤0.5mm；The grain size M of the powder filler is 0.001mm≤M≤0.3mm.
Compared with the prior art, the present invention has the following advantages：
1, the configuration of the present invention is simple, novel in design rationally it is convenient to realize, highly practical, using effect is good, convenient for promoting.
2, the present invention is made of face layer, inner layer and the bourrelet of anti-corrosion material, therefore has excellent anticorrosive anti-corrosion
Corrosion energy, and the steel skeleton knot being made of shaped steel, top steel wire and lower part steel wire and steel hoop is provided in well lid
Structure can be such that compression strength, tensile strength, anti-fatigue life of well lid etc. has excellent performance.
3, well lid of the present invention is internally provided with the reinforcing bar being made of shaped steel, top steel wire and lower part steel wire and steel hoop
Frame；And face layer, inner layer and the bourrelet of well lid are made of anti-corrosion material, so that well lid is had, compression strength is high, the antifatigue longevity
Life is high, resistance to strong acid, weak base, salt corrosion the advantages that；And internal impermeable, steel will not corrosion.
4, well lid of the present invention has the advantages that whole recyclable, while being not easy to be stolen.Except daily make can be met
With outer, harbour, chemical plant, the similar region for having corrosion such as sewage treatment plant use by the sea, can more play its corrosion-resistant longevity
The characteristics of life.
5, face layer of the present invention is one layer thin of the fine sand pulp layer added with modified sulfur, not only ensure that the beauty of face layer, but also
It is exposed steel skeleton has been prevented；What is filled in internal steel skeleton is the thermoplasticity concrete added with modified sulfur, with steel skeleton
Cementability it is good, steel wire is distributed in entire mixture, improves the tensile strength of entire product；Pass through the modified sulphur of addition
Sulphur keeps well lid product impermeable, does not absorb water, and internal reinforcing bar will not be by chloride ion corrosion, product acid and alkali-resistance salt corrosion；And existing well
The comparison of lid product is especially compared with cement well lid, which has high-strength, corrosion resistant, can consume waste material, can recycle completely,
The advantages of no waste generates.
In short, properties of product of the present invention and structure design are unique, in addition to meeting the routine use for commonly using well lid, more there is resistance to compression
The advantages of tensile strength is high, and anti-fatigue life is high, wear-resisting, anticorrosive, freeze thawing resistance；Waste, product report can be digested during fabrication
It can be recycled completely after useless.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Description of the drawings
Fig. 1 is the structural schematic diagram of the recyclable well lid of anti-corrosion of the present invention.
Fig. 2 is the connection status schematic diagram of steel hoop of the present invention and shaped steel.
Reference sign:
1-lid；1-1-face layer；1-2-inner layer；
1-3-shaped steel；1-4-top steel wire；1-5-lower part steel wire；
1-6-handle aperture；1-7-steel hoop；2-bourrelets.
Specific implementation mode
The structure of the recyclable well lid of anti-corrosion of the present invention is described by embodiment 1.
Embodiment 1
The recyclable well lid of a kind of anti-corrosion as depicted in figs. 1 and 2, including lid 1 and bourrelet 2, the shape of the lid 1
For patty, the bourrelet 2 is located at the bottom of lid 1, and the shape of the bourrelet 2 is cylindrical shape, the lid 1 and centering
The central axes in portion 2 coincide, and the lid 1 includes being provided with steel skeleton in face layer 1-1 and inner layer 1-2, the inner layer 1-2, institute
State steel skeleton include shape be groined type shaped steel 1-3, be set to the tops shaped steel 1-3 top steel wire 1-4, be set to shaped steel
The lower part steel wire 1-5 of the lower parts 1-3 and the steel hoop 1-7, the face layer 1-1 for being set to the peripheries shaped steel 1-3 are set to inner layer 1-2
Upper surface and steel hoop 1-7 outer surface, face layer 1-1 is made of the fine sand slurry added with modified sulfur, in described
Layer 1-2 and bourrelet 2 are made of the thermoplasticity concrete added with modified sulfur.
As shown in Figure 1, offering the handle aperture 1-6 convenient for lifting on the lid 1, the quantity of the handle aperture 1-6 is
Two, two handle aperture 1-6 are symmetrically disposed on the left and right sides of 1 central axes of lid.
In the present embodiment, the shaped steel 1-3 is any one or two or more combinations in angle steel, channel steel and quarter bend.
In the present embodiment, carves and be equipped with for anti-skidding decorative pattern, word or groove on the face layer 1-1.
In the present embodiment, between the shaped steel 1-3 and top steel wire 1-4, lower part steel wire 1-5 and steel hoop 1-7
By being welded to connect.
Well lid of the present invention is made of face layer 1-1, inner layer 1-2 and the bourrelet 2 of anti-corrosion material, therefore with excellent
Anticorrosive Corrosion Protection, and be provided in well lid by shaped steel 1-3, top steel wire 1-4 and lower part steel wire 1-5 and
The steel skeleton construction of steel hoop 1-7 compositions, can be such that compression strength, tensile strength, anti-fatigue life of well lid etc. has excellent performance.
The production method of the recyclable well lid of anti-corrosion of the present invention is described by embodiment 2 to 7.
Embodiment 2
The production method of the recyclable well lid of anti-corrosion of the present invention is combined with Figure 1 and Figure 2,：
The first step designs metal die according to the manhole cover structure to be made, then the smearing release agent in metal die
And 130 DEG C are preheated to, while preheated mold, it will be embraced by shaped steel 1-3, top steel wire 1-4, lower part steel wire 1-5 and steel
The steel skeleton of hoop 1-7 connections composition is preheated, until it is 150 DEG C that steel skeleton temperature is constant；
Second step, the thermoplasticity added with modified sulfur that pouring temperature is 130 DEG C into the metal die after preheating are mixed
Solidifying soil, and it is mixed to the thermoplasticity in metal die using the shaking platform positioned at the metal die lower part in casting process
Solidifying soil vibration compacting, smoothes out, then the steel skeleton after preheating is fitted into metal die, backward metal die in continue to pour into a mould
The thermoplasticity concrete added with modified sulfur that temperature is 130 DEG C, and using positioned at the metal mold in casting process
The shaking platform for having lower part tamps the thermoplasticity vibratory concrete in metal die, smoothes out, finally to the metal mold after preheating
The fine sand slurry added with modified sulfur that pouring temperature is 130 DEG C in tool, and used in casting process and be located at the metal
The shaking platform of mold lower part starches vibration tamp to the fine sand in metal die, smoothes out；
In the present embodiment, the face layer 1-1 is made of the fine sand slurry added with modified sulfur, the inner layer 1-2 and centering
Portion 2 is made of the thermoplasticity concrete added with modified sulfur.In specific implementation process, existing modified sulphur may be used
Sulphur, it is preferred to use the modified sulfur being prepared through following methods：Sulphur is heated to melting completely, then by the sulphur of molten state
Sulphur and modifying agent react 1.5h under conditions of temperature is 130 DEG C, obtain modified sulfur, and the modifying agent is dicyclopentadiene,
The mass ratio of the sulphur and modifying agent is 100: 6；
In specific implementation process, when preparing face layer 1-1, it is preferred to use be added with modified sulphur through what following methods were prepared
The fine sand of sulphur is starched：Fine aggregate is heated to 140 DEG C, then modified sulfur is added in the fine aggregate of heating and stirs evenly, obtains
Fine sand is starched；The fine aggregate refers to granularity in 1mm river sands below, and the volume ratio of the modified sulfur and fine aggregate is 1: 1.6.
In specific implementation process, when preparing inner layer 1-2 and bourrelet 2, it is preferred to use add through what following methods were prepared
Added with the thermoplasticity concrete of modified sulfur：130 DEG C of aggregate, fiber and the modified sulfur for being heated to molten condition will be preheated to
It pours into stirring container, is stirred evenly under 130 DEG C of constant temperatures, form thermoplasticity concrete；The body of the modified sulfur
Product is the 11.5% of the thermoplasticity volume of concrete, and the volume of the fiber is the 1% of the thermoplasticity volume of concrete, institute
It includes coarse aggregate, fine aggregate and powder filler to state aggregate, and the volume of the coarse aggregate is the thermoplasticity volume of concrete
42%, the volume of the fine aggregate is the 37% of the thermoplasticity volume of concrete, and the volume of the powder filler is the heat
The volume ratio of the 8.5% of plastic concrete volume, the fine aggregate and coarse aggregate is 0.88: 1；The modified sulfur is filled out with powder
The volume ratio of material is 1.35: 1；The fiber is carbon fiber；
The coarse aggregate is uniformly mixed by the raw material of following volumes part and is formed：First coarse aggregate, 80 parts by volume, the second thick bone
Expect 40 parts by volume, 49 parts by volume of third coarse aggregate；The grain size D of first coarse aggregate1For 15mm ＜ D1≤ 25mm, the second coarse aggregate
Grain size is D2For 8mm ＜ D2The grain size of≤15mm, third coarse aggregate are D3For 5mm ＜ D3≤8mm；
The fine aggregate is uniformly mixed by the raw material of following volumes part and is formed：First fine aggregate, 25 parts by volume, the second thin bone
Expect 60 parts by volume, 10 parts by volume of third fine aggregate；The grain size d of first fine aggregate1For 2mm ＜ d1≤ 5mm, the grain of the second fine aggregate
Diameter d2For 0.5mm ＜ d2≤ 2mm, the grain size d of third fine aggregate3For 0.3mm ＜ d3≤0.5mm；
The grain size M of the powder filler is 0.001mm≤M≤0.3mm；
In the present embodiment, first coarse aggregate, the second coarse aggregate, third coarse aggregate and the first fine aggregate are lime stone
Particle；Second fine aggregate and third fine aggregate are natural river sand；Powder filler is flyash.
Third step, air-cooled 30min, rewater 15min, you can demoulding (its compression strength reaches 30MPa or more at this time) takes off
It repaiies to remove with the grafter heated after mould and pours flash, after 20h, finally obtain intensity and reach the anti-corrosion that design requirement can come into operation
Recyclable well lid.
Embodiment 3
The production method of the recyclable well lid of the present embodiment anti-corrosion is combined with Figure 1 and Figure 2,：
The first step designs metal die according to the manhole cover structure to be made, then the smearing release agent in metal die
And 135 DEG C are preheated to, while preheated mold, it will be embraced by shaped steel 1-3, top steel wire 1-4, lower part steel wire 1-5 and steel
The steel skeleton of hoop 1-7 connections composition is preheated, until it is 150 DEG C that steel skeleton temperature is constant；
Second step, the thermoplasticity added with modified sulfur that pouring temperature is 135 DEG C into the metal die after preheating are mixed
Solidifying soil, and it is mixed to the thermoplasticity in metal die using the shaking platform positioned at the metal die lower part in casting process
Solidifying soil vibration compacting, smoothes out, then the steel skeleton after preheating is fitted into metal die, backward metal die in continue to pour into a mould
The thermoplasticity concrete added with modified sulfur that temperature is 135 DEG C, and using positioned at the metal mold in casting process
The shaking platform for having lower part tamps the thermoplasticity vibratory concrete in metal die, smoothes out, finally to the metal mold after preheating
The fine sand slurry added with modified sulfur that pouring temperature is 135 DEG C in tool, and used in casting process and be located at the metal
The shaking platform of mold lower part starches vibration tamp to the fine sand in metal die, smoothes out；
In the present embodiment, the face layer 1-1 is made of the fine sand slurry added with modified sulfur, the inner layer 1-2 and centering
Portion 2 is made of the thermoplasticity concrete added with modified sulfur.In specific implementation process, existing modified sulphur may be used
Sulphur, it is preferred to use the modified sulfur being prepared through following methods：Sulphur is heated to melting completely, then by the sulphur of molten state
Sulphur and modifying agent react 2h under conditions of temperature is 135 DEG C, obtain modified sulfur, the modifying agent is polysulfide rubber, described
The volume ratio of sulphur and modifying agent is 12.5: 1；
In specific implementation process, when preparing face layer 1-1, it is preferred to use be added with modified sulphur through what following methods were prepared
The fine sand of sulphur is starched：Fine aggregate is heated to 135 DEG C, then modified sulfur is added in the fine aggregate of heating and stirs evenly, obtains
Fine sand is starched；The fine aggregate refers to granularity in 1mm artificial sands below, and the volume ratio of the modified sulfur and fine aggregate is 1:
1.9。
In specific implementation process, when preparing inner layer 1-2 and bourrelet 2, it is preferred to use add through what following methods were prepared
Added with the thermoplasticity concrete of modified sulfur：135 DEG C of aggregate, fiber and the modified sulfur for being heated to molten condition will be preheated to
It pours into stirring container, is stirred evenly under 135 DEG C of constant temperatures, form thermoplasticity concrete；The body of the modified sulfur
Product is the 26% of the thermoplasticity volume of concrete, and the volume of the fiber is the 6% of the thermoplasticity volume of concrete, described
Aggregate includes coarse aggregate, fine aggregate and powder filler, and the volume of the coarse aggregate is the 28% of the thermoplasticity volume of concrete,
The volume of the fine aggregate is the 25% of the thermoplasticity volume of concrete, and the volume of the powder filler is mixed for the thermoplasticity
The volume ratio of the 15% of solidifying soil body product, the fine aggregate and coarse aggregate is 0.89：1；The body of the modified sulfur and powder filler
Product is than being 1.73：1；The fiber is steel fibre；
The coarse aggregate is uniformly mixed by the raw material of following volumes part and is formed：First coarse aggregate, 50 parts by volume, the second thick bone
Expect 1 parts by volume, 0 parts by volume of third coarse aggregate；The grain size D of first coarse aggregate1For 15mm ＜ D1≤ 25mm, the grain of the second coarse aggregate
Diameter D2For 8mm ＜ D2≤ 15mm, the grain size D of third coarse aggregate3For 5mm ＜ D3≤8mm；
The fine aggregate is uniformly mixed by the raw material of following volumes part and is formed：First fine aggregate, 49.5 parts by volume, second is thin
75 parts by volume of aggregate, 30 parts by volume of third fine aggregate；The grain size d of first fine aggregate1For 2mm ＜ d1≤ 5mm, the second fine aggregate
Grain size d2For 0.5mm ＜ d2≤ 2mm, the grain size d of third fine aggregate3For 0.3mm ＜ d3≤0.5mm；
The grain size M of the powder filler is 0.001mm≤M≤0.3mm；
In the present embodiment, first coarse aggregate, the second coarse aggregate, third coarse aggregate and the first fine aggregate are lime stone
Particle；Second fine aggregate and third fine aggregate are natural river sand；Powder filler is flyash；
Third step, air-cooled 30min, rewater 15min, you can demoulding (its compression strength reaches 30MPa or more at this time) takes off
It repaiies to remove with the grafter heated after mould and pours flash, after 20h, finally obtain intensity and reach the anti-corrosion that design requirement can come into operation
Recyclable well lid.
Embodiment 4
The production method of the recyclable well lid of the present embodiment anti-corrosion is combined with Figure 1 and Figure 2,：
The first step designs metal die according to the manhole cover structure to be made, then the smearing release agent in metal die
And 125 DEG C are preheated to, while preheated mold, it will be embraced by shaped steel 1-3, top steel wire 1-4, lower part steel wire 1-5 and steel
The steel skeleton of hoop 1-7 connections composition is preheated, until it is 140 DEG C that steel skeleton temperature is constant；
Second step, the thermoplasticity added with modified sulfur that pouring temperature is 125 DEG C into the metal die after preheating are mixed
Solidifying soil, and it is mixed to the thermoplasticity in metal die using the shaking platform positioned at the metal die lower part in casting process
Solidifying soil vibration compacting, smoothes out, then the steel skeleton after preheating is fitted into metal die, backward metal die in continue to pour into a mould
The thermoplasticity concrete added with modified sulfur that temperature is 125 DEG C, and using positioned at the metal mold in casting process
The shaking platform for having lower part tamps the thermoplasticity vibratory concrete in metal die, smoothes out, finally to the metal mold after preheating
The fine sand slurry added with modified sulfur that pouring temperature is 125 DEG C in tool, and used in casting process and be located at the metal
The shaking platform of mold lower part starches vibration tamp to the fine sand in metal die, smoothes out；
In the present embodiment, the face layer 1-1 is made of the fine sand slurry added with modified sulfur, the inner layer 1-2 and centering
Portion 2 is made of the thermoplasticity concrete added with modified sulfur.In specific implementation process, existing modified sulphur may be used
Sulphur, it is preferred to use the modified sulfur being prepared through following methods：Sulphur is heated to melting completely, then by the sulphur of molten state
Sulphur and modifying agent react 1.5h under conditions of temperature is 125 DEG C, obtain modified sulfur, the modifying agent be dicyclopentadiene and
The mass ratio of the oligomer of cyclopentadiene, the sulphur and modifying agent is 100: 4；
In specific implementation process, when preparing face layer 1-1, it is preferred to use be added with modified sulphur through what following methods were prepared
The fine sand of sulphur is starched：Fine aggregate is heated to 130 DEG C, then modified sulfur is added in the fine aggregate of heating and stirs evenly, obtains
Fine sand is starched；The fine aggregate refers to granularity in 1mm slags below, and the volume ratio of the modified sulfur and fine aggregate is 1: 1.5.
In specific implementation process, when preparing inner layer 1-2 and bourrelet 2, it is preferred to use add through what following methods were prepared
Added with the thermoplasticity concrete of modified sulfur：125 DEG C of aggregate, fiber and the modified sulfur for being heated to molten condition will be preheated to
It pours into stirring container, is stirred evenly under 125 DEG C of constant temperatures, form thermoplasticity concrete；The body of the modified sulfur
Product is the 23% of the thermoplasticity volume of concrete, and the volume of the fiber is the 1% of the thermoplasticity volume of concrete, described
Aggregate includes coarse aggregate, fine aggregate and powder filler, and the volume of the coarse aggregate is the 36% of the thermoplasticity volume of concrete,
The volume of the fine aggregate is the 30% of the thermoplasticity volume of concrete, and the volume of the powder filler is mixed for the thermoplasticity
The volume ratio of the 10% of solidifying soil body product, the fine aggregate and coarse aggregate is 0.83: 1；The body of the modified sulfur and powder filler
Product is than being 2.3: 1；The fiber is glass fibre.
The coarse aggregate is uniformly mixed by the raw material of following volumes part and is formed：First coarse aggregate, 55 parts by volume, the second thick bone
Expect 10 parts by volume, 5 parts by volume of third coarse aggregate；The grain size D of first coarse aggregate1For 15mm ＜ D1≤ 25mm, the grain of the second coarse aggregate
Diameter D2For 8mm ＜ D2≤ 15mm, the grain size D of third coarse aggregate3For 5mm ＜ D3≤8mm；
The fine aggregate is uniformly mixed by the raw material of following volumes part and is formed：First fine aggregate, 40 parts by volume, the second thin bone
Expect 70 parts by volume, 25 parts by volume of third fine aggregate；The grain size d of first fine aggregate1For 2mm ＜ d1≤ 5mm, the grain of the second fine aggregate
Diameter d2For 0.5mm ＜ d2≤ 2mm, the grain size d of third fine aggregate3For 0.3mm ＜ d3≤0.5mm；
The grain size M of the powder filler is 0.001mm≤M≤0.3mm；
In the present embodiment, first coarse aggregate, the second coarse aggregate, third coarse aggregate and the first fine aggregate are lime stone
Particle；Second fine aggregate and third fine aggregate are natural river sand；Powder filler is flyash；
Third step, air-cooled 30min, rewater 15min, you can demoulding (its compression strength reaches 30MPa or more at this time) takes off
It repaiies to remove with the grafter heated after mould and pours flash, after 20h, finally obtain intensity and reach the anti-corrosion that design requirement can come into operation
Recyclable well lid.
Embodiment 5
The production method of the recyclable well lid of the present embodiment anti-corrosion is combined with Figure 1 and Figure 2,：
The first step designs metal die according to the manhole cover structure to be made, then the smearing release agent in metal die
And 130 DEG C are preheated to, while preheated mold, it will be embraced by shaped steel 1-3, top steel wire 1-4, lower part steel wire 1-5 and steel
The steel skeleton of hoop 1-7 connections composition is preheated, until it is 150 DEG C that steel skeleton temperature is constant；
Second step, the thermoplasticity added with modified sulfur that pouring temperature is 130 DEG C into the metal die after preheating are mixed
Solidifying soil, and it is mixed to the thermoplasticity in metal die using the shaking platform positioned at the metal die lower part in casting process
Solidifying soil vibration compacting, smoothes out, then the steel skeleton after preheating is fitted into metal die, backward metal die in continue to pour into a mould
The thermoplasticity concrete added with modified sulfur that temperature is 130 DEG C, and using positioned at the metal mold in casting process
The shaking platform for having lower part tamps the thermoplasticity vibratory concrete in metal die, smoothes out, finally to the metal mold after preheating
The fine sand slurry added with modified sulfur that pouring temperature is 130 DEG C in tool, and used in casting process and be located at the metal
The shaking platform of mold lower part starches vibration tamp to the fine sand in metal die, smoothes out；
In the present embodiment, the face layer 1-1 is made of the fine sand slurry added with modified sulfur, the inner layer 1-2 and centering
Portion 2 is made of the thermoplasticity concrete added with modified sulfur.In specific implementation process, existing modified sulphur may be used
Sulphur, it is preferred to use the modified sulfur being prepared through following methods：Sulphur is heated to melting completely, then by the sulphur of molten state
Sulphur and modifying agent react 1.5h under conditions of temperature is 130 DEG C, obtain modified sulfur, the modifying agent be dicyclopentadiene and
The mass ratio of the oligomer of cyclopentadiene, the sulphur and modifying agent is 100: 7；
In specific implementation process, when preparing face layer 1-1, it is preferred to use be added with modified sulphur through what following methods were prepared
The fine sand of sulphur is starched：Fine aggregate is heated to 130 DEG C, then modified sulfur is added in the fine aggregate of heating and stirs evenly, obtains
Fine sand is starched；The fine aggregate refers to granularity in 1mm molybdenum ore slags below, and the volume ratio of the modified sulfur and fine aggregate is 1:
1.8。
In specific implementation process, when preparing inner layer 1-2 and bourrelet 2, it is preferred to use add through what following methods were prepared
Added with the thermoplasticity concrete of modified sulfur：130 DEG C of aggregate, fiber and the modified sulfur for being heated to molten condition will be preheated to
It pours into stirring container, is stirred evenly under 130 DEG C of constant temperatures, form thermoplasticity concrete；The body of the modified sulfur
Product is the 20.5% of the thermoplasticity volume of concrete, and the volume of the fiber is the 2% of the thermoplasticity volume of concrete, institute
It includes coarse aggregate, fine aggregate and powder filler to state aggregate, and the volume of the coarse aggregate is the thermoplasticity volume of concrete
46%, the volume of the fine aggregate is the 19.5% of the thermoplasticity volume of concrete, and the volume of the powder filler is described
The volume ratio of the 12% of thermoplasticity volume of concrete, the fine aggregate and coarse aggregate is 0.42: 1；The modified sulfur and powder
The volume ratio of filler is 1.71: 1；The fiber is glass fibre.
The coarse aggregate is uniformly mixed by the raw material of following volumes part and is formed：First coarse aggregate, 80 parts by volume, the second thick bone
Expect 30 parts by volume, 49 parts by volume of third coarse aggregate；The grain size D of first coarse aggregate1For 15mm ＜ D1≤ 25mm, the second coarse aggregate
Grain size D2For 8mm ＜ D2≤ 15mm, the grain size D of third coarse aggregate3For 5mm ＜ D3≤8mm；
The fine aggregate is uniformly mixed by the raw material of following volumes part and is formed：First fine aggregate, 45 parts by volume, the second thin bone
Expect 79.5 parts by volume, 20 parts by volume of third fine aggregate；The grain size d of first fine aggregate1For 2mm ＜ d1≤ 5mm, the second fine aggregate
Grain size d2For 0.5mm ＜ d2≤ 2mm, the grain size d of third fine aggregate3For 0.3mm ＜ d3≤0.5mm；
The grain size M of the powder filler is 0.001mm≤M≤0.3mm；
In the present embodiment, first coarse aggregate, the second coarse aggregate, third coarse aggregate and the first fine aggregate are lime stone
Particle；Second fine aggregate and third fine aggregate are natural river sand；Powder filler is flyash；
Third step, air-cooled 30min, rewater 15min, you can demoulding (its compression strength reaches 30MPa or more at this time) takes off
It repaiies to remove with the grafter heated after mould and pours flash, after 20h, finally obtain intensity and reach the anti-corrosion that design requirement can come into operation
Recyclable well lid.
Embodiment 6
The production method of the recyclable well lid of the present embodiment anti-corrosion is combined with Figure 1 and Figure 2,：
The first step designs metal die according to the manhole cover structure to be made, then the smearing release agent in metal die
And 148 DEG C are preheated to, while preheated mold, it will be embraced by shaped steel 1-3, top steel wire 1-4, lower part steel wire 1-5 and steel
The steel skeleton of hoop 1-7 connections composition is preheated, until it is 160 DEG C that steel skeleton temperature is constant；
Second step, the thermoplasticity added with modified sulfur that pouring temperature is 148 DEG C into the metal die after preheating are mixed
Solidifying soil, and it is mixed to the thermoplasticity in metal die using the shaking platform positioned at the metal die lower part in casting process
Solidifying soil vibration compacting, smoothes out, then the steel skeleton after preheating is fitted into metal die, backward metal die in continue to pour into a mould
The thermoplasticity concrete added with modified sulfur that temperature is 148 DEG C, and using positioned at the metal mold in casting process
The shaking platform for having lower part tamps the thermoplasticity vibratory concrete in metal die, smoothes out, finally to the metal mold after preheating
The fine sand slurry added with modified sulfur that pouring temperature is 148 DEG C in tool, and used in casting process and be located at the metal
The shaking platform of mold lower part starches vibration tamp to the fine sand in metal die, smoothes out；
In the present embodiment, the face layer 1-1 is made of the fine sand slurry added with modified sulfur, the inner layer 1-2 and centering
Portion 2 is made of the thermoplasticity concrete added with modified sulfur.In specific implementation process, existing modified sulphur may be used
Sulphur, it is preferred to use the modified sulfur being prepared through following methods：Sulphur is heated to melting completely, then by the sulphur of molten state
Sulphur and modifying agent react 1h under conditions of temperature is 146 DEG C, obtain modified sulfur, the modifying agent is polysulfide rubber, described
The mass ratio of sulphur and modifying agent is 100: 3；
In specific implementation process, when preparing face layer 1-1, it is preferred to use be added with modified sulphur through what following methods were prepared
The fine sand of sulphur is starched：Fine aggregate is heated to 150 DEG C, then modified sulfur is added in the fine aggregate of heating and stirs evenly, obtains
Fine sand is starched；The fine aggregate refers to granularity in 1mm slags below, and the volume ratio of the modified sulfur and fine aggregate is 1: 1.6.
In specific implementation process, when preparing inner layer 1-2 and bourrelet 2, it is preferred to use add through what following methods were prepared
Added with the thermoplasticity concrete of modified sulfur：148 DEG C of aggregate, fiber and the modified sulfur for being heated to molten condition will be preheated to
It pours into stirring container, is stirred evenly under 146 DEG C of constant temperatures, form thermoplasticity concrete；The body of the modified sulfur
Product is the 13% of the thermoplasticity volume of concrete, and the volume of the fiber is the 4% of the thermoplasticity volume of concrete, described
Aggregate includes coarse aggregate, fine aggregate and powder filler, and the volume of the coarse aggregate is the 38% of the thermoplasticity volume of concrete,
The volume of the fine aggregate is the 34% of the thermoplasticity volume of concrete, and the volume of the powder filler is mixed for the thermoplasticity
The volume ratio of the 11% of solidifying soil body product, the fine aggregate and coarse aggregate is 0.89: 1；The body of the modified sulfur and powder filler
Product is than being 1.18：1；The fiber is glass fibre；
The coarse aggregate is uniformly mixed by the raw material of following volumes part and is formed：First coarse aggregate, 99 parts by volume, the second thick bone
Expect 20 parts by volume, 30 parts by volume of third coarse aggregate；The grain size D of first coarse aggregate1For 15mm ＜ D1≤ 25mm, the second coarse aggregate
Grain size D2For 8mm ＜ D2≤ 15mm, the grain size D of third coarse aggregate3For 5mm ＜ D3≤8mm；
The fine aggregate is uniformly mixed by the raw material of following volumes part and is formed：First fine aggregate, 20 parts by volume, the second thin bone
Expect 60 parts by volume, 0.5 parts by volume of third fine aggregate；The grain size d of first fine aggregate1For 2mm ＜ d1≤ 5mm, the grain of the second fine aggregate
Diameter d2For 0.5mm ＜ d2≤ 2mm, the grain size d of third fine aggregate3For 0.3mm ＜ d3≤0.5mm；
The grain size M of the powder filler is 0.001mm≤M≤0.3mm；
In the present embodiment, first coarse aggregate, the second coarse aggregate, third coarse aggregate and the first fine aggregate are lime stone
Particle；Second fine aggregate and third fine aggregate are natural river sand；Powder filler is flyash；
Third step, air-cooled 30min, rewater 15min, you can demoulding (its compression strength reaches 30MPa or more at this time) takes off
It repaiies to remove with the grafter heated after mould and pours flash, after 20h, finally obtain intensity and reach the anti-corrosion that design requirement can come into operation
Recyclable well lid.
Embodiment 7
The production method of the recyclable well lid of the present embodiment anti-corrosion is combined with Figure 1 and Figure 2,：
The first step designs metal die according to the manhole cover structure to be made, then the smearing release agent in metal die
And 130 DEG C are preheated to, while preheated mold, it will be embraced by shaped steel 1-3, top steel wire 1-4, lower part steel wire 1-5 and steel
The steel skeleton of hoop 1-7 connections composition is preheated, until it is 150 DEG C that steel skeleton temperature is constant；
Second step, the thermoplasticity added with modified sulfur that pouring temperature is 130 DEG C into the metal die after preheating are mixed
Solidifying soil, and it is mixed to the thermoplasticity in metal die using the shaking platform positioned at the metal die lower part in casting process
Solidifying soil vibration compacting, smoothes out, then the steel skeleton after preheating is fitted into metal die, backward metal die in continue to pour into a mould
The thermoplasticity concrete added with modified sulfur that temperature is 130 DEG C, and using positioned at the metal mold in casting process
The shaking platform for having lower part tamps the thermoplasticity vibratory concrete in metal die, smoothes out, finally to the metal mold after preheating
The fine sand slurry added with modified sulfur that pouring temperature is 130 DEG C in tool, and used in casting process and be located at the metal
The shaking platform of mold lower part starches vibration tamp to the fine sand in metal die, smoothes out；
In the present embodiment, the face layer 1-1 is made of the fine sand slurry added with modified sulfur, the inner layer 1-2 and centering
Portion 2 is made of the thermoplasticity concrete added with modified sulfur.In specific implementation process, existing modified sulphur may be used
Sulphur, it is preferred to use the modified sulfur being prepared through following methods：Sulphur is heated to melting completely, then by the sulphur of molten state
Sulphur and modifying agent react 1.5h under conditions of temperature is 130 DEG C, obtain modified sulfur, the modifying agent be dicyclopentadiene and
The volume ratio of the oligomer of cyclopentadiene, the sulphur and modifying agent is 100: 7；
In specific implementation process, when preparing face layer 1-1, it is preferred to use be added with modified sulphur through what following methods were prepared
The fine sand of sulphur is starched：Fine aggregate is heated to 130 DEG C, then modified sulfur is added in the fine aggregate of heating and stirs evenly, obtains
Fine sand is starched；The fine aggregate refers to granularity in 1mm molybdenum ore slags below, and the volume ratio of the modified sulfur and fine aggregate is 1:
1.8。
In specific implementation process, when preparing inner layer 1-2 and bourrelet 2, it is preferred to use add through what following methods were prepared
Added with the thermoplasticity concrete of modified sulfur：130 DEG C of aggregate, fiber and the modified sulfur for being heated to molten condition will be preheated to
It pours into stirring container, is stirred evenly under 130 DEG C of constant temperatures, form thermoplasticity concrete；The body of the modified sulfur
Product is the 10% of the thermoplasticity volume of concrete, and the volume of the fiber is the 1.5% of the thermoplasticity volume of concrete, institute
It includes coarse aggregate, fine aggregate and powder filler to state aggregate, and the volume of the coarse aggregate is the thermoplasticity volume of concrete
38%, the volume of the fine aggregate is the 38% of the thermoplasticity volume of concrete, and the volume of the powder filler is the heat
The volume ratio of the 12.5% of plastic concrete volume, the fine aggregate and coarse aggregate is 1: 1；The modified sulfur and powder filler
Volume ratio be 0.8：1；The fiber is glass fibre.
The coarse aggregate is uniformly mixed by the raw material of following volumes part and is formed：First coarse aggregate, 80 parts by volume, the second thick bone
Expect 30 parts by volume, 49 parts by volume of third coarse aggregate；The grain size D of first coarse aggregate1For 15mm ＜ D1≤ 25mm, the second coarse aggregate
Grain size D2For 8mm ＜ D2≤ 15mm, the grain size D of third coarse aggregate3For 5mm ＜ D3≤8mm；
The fine aggregate is uniformly mixed by the raw material of following volumes part and is formed：First fine aggregate, 45 parts by volume, the second thin bone
Expect 79.5 parts by volume, 20 parts by volume of third fine aggregate；The grain size d of first fine aggregate1For 2mm ＜ d1≤ 5mm, the second fine aggregate
Grain size d2For 0.5mm ＜ d2≤ 2mm, the grain size d of third fine aggregate3For 0.3mm ＜ d3≤0.5mm；
The grain size M of the powder filler is 0.001mm≤M≤0.3mm；
In the present embodiment, first coarse aggregate, the second coarse aggregate, third coarse aggregate and the first fine aggregate are lime stone
Particle；Second fine aggregate and third fine aggregate are natural river sand；Powder filler is flyash；
Third step, air-cooled 30min, rewater 15min, you can demoulding (its compression strength reaches 30MPa or more at this time) takes off
It repaiies to remove with the grafter heated after mould and pours flash, after 20h, finally obtain intensity and reach the anti-corrosion that design requirement can come into operation
Recyclable well lid.
By the thermoplasticity concrete that the embodiment of the present invention 2~7 is prepared during preparing well lid pour into 100mm ×
The standard sample of 100mm × 100mm carries out compression strength to the standard sample and acidproof rate is tested, experimental result such as 1 institute of table
Show.The fine sand slurry that the embodiment of the present invention 2~7 is prepared during preparing well lid is poured into 100mm × 100mm × 100mm's
Standard sample carries out corrosion-resistant experiment to the standard sample, and experimental result is as shown in table 2.
The compression strength and acidproof rate experimental result of 1 embodiment of table, 2~7 thermoplasticity concrete standard sample
2 embodiment of table, 2~7 fine sand starches the corrosion-resistant experimental result of standard sample
| Project | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 |
| It is corrosion-resistant | 96.1 | 96 | 98 | 97 | 97.2 | 96 |
From Tables 1 and 2：The present invention makees binder during preparing well lid, using modified sulfur and prepares thermoplasticity
The antiseptic property of concrete and fine sand slurry, institute's thermoplastic's concrete and fine sand slurry is good, and close to acidproof brick, compression strength is excellent.
The above is only presently preferred embodiments of the present invention, is not imposed any restrictions to the present invention.It is every according to invention skill
Art essence still falls within technical solution of the present invention to any simple modification, change and equivalence change made by above example
Protection domain in.
Claims (10)
1. a kind of recyclable well lid of anti-corrosion, which is characterized in that including lid (1) and bourrelet (2), the shape of the lid (1)
For patty, the bourrelet (2) is located at the bottom of lid (1), and the shape of the bourrelet (2) is cylindrical shape, the lid
(1) it coincides with the central axes of bourrelet (2), the lid (1) includes face layer (1-1) and inner layer (1-2), the inner layer (1-
2) steel skeleton is provided in, the steel skeleton includes the shaped steel (1-3) that shape is groined type, is set to the top shaped steel (1-3)
Top steel wire (1-4), the lower part steel wire (1-5) for being set to the lower part shaped steel (1-3) and the steel for being set to the periphery shaped steel (1-3)
Anchor ear (1-7), the face layer (1-1) are set to the upper surface of inner layer (1-2) and the outer surface of steel hoop (1-7), the face
Layer (1-1) is made of the fine sand slurry added with modified sulfur, and the inner layer (1-2) and bourrelet (2) are by added with modified sulphur
The thermoplasticity concrete of sulphur is made.
2. the recyclable well lid of a kind of anti-corrosion according to claim 1, which is characterized in that offered just on the lid (1)
It it is two in the quantity of the handle aperture (1-6) of lifting, the handle aperture (1-6), two handle apertures (1-6) are symmetrically disposed on
The left and right sides of lid (1) central axes.
3. the recyclable well lid of a kind of anti-corrosion according to claim 1, which is characterized in that the shaped steel (1-3) is angle steel, slot
Any one in steel and quarter bend or two or more combinations.
4. the recyclable well lid of a kind of anti-corrosion according to claim 1, which is characterized in that carve and be equipped on the face layer (1-1)
For anti-skidding groove.
5. the recyclable well lid of a kind of anti-corrosion according to claim 1, which is characterized in that the shaped steel (1-3) and upper steel
By being welded to connect between silk screen (1-4), lower part steel wire (1-5) and steel hoop (1-7).
6. the recyclable well lid of a kind of anti-corrosion according to claim 1, which is characterized in that the preparation method of the modified sulfur
For：Sulphur is heated to melting completely, the condition for being then 125 DEG C~146 DEG C in temperature by the sulphur of molten state and modifying agent
Lower reaction 1h~2h, obtains modified sulfur, and the modifying agent is dicyclopentadiene or polysulfide rubber, or for dicyclopentadiene and
The mass ratio of the oligomer of cyclopentadiene, the sulphur and dicyclopentadiene is 100: (4~7), the sulphur and polysulfide rubber
Mass ratio be 100: the mass ratio of the oligomer of (1.5~4), the sulphur and dicyclopentadiene and cyclopentadiene is 100: (4
~7).
7. the recyclable well lid of a kind of anti-corrosion according to claim 1 or 6, which is characterized in that described to be added with modified sulfur
Fine sand slurry preparation method be：Fine aggregate is heated to 130 DEG C~150 DEG C, the modified sulfur is then added to heating
Fine aggregate in stir evenly, obtain added with modified sulfur fine sand starch；The fine aggregate refers to granularity in the rivers below 1mm
The volume ratio of sand, artificial sand, slag or molybdenum ore slag, the modified sulfur and fine aggregate is 1: (1.5~1.9).
8. the recyclable well lid of a kind of anti-corrosion according to claim 1 or 6, which is characterized in that described to be added with modified sulfur
The preparation method of thermoplasticity concrete be：By fiber, it is preheated to 125 DEG C~148 DEG C of aggregate and is heated to molten condition
Modified sulfur pours into stirring container, is stirred evenly under 125 DEG C~146 DEG C constant temperatures, obtains being added with modified sulfur
Thermoplasticity concrete；The volume of the modified sulfur is the 10%~26% of thermoplasticity volume of concrete, the body of the fiber
Product is the 1%~6% of the thermoplasticity volume of concrete, and the aggregate includes coarse aggregate, fine aggregate and powder filler, described thick
The volume of aggregate is the 28%~46% of the thermoplasticity volume of concrete, and the volume of the fine aggregate is the thermoplasticity coagulation
The 19.5%~38% of soil body product, the volume of the powder filler is the 8%~15% of the thermoplasticity volume of concrete, described
The volume ratio of fine aggregate and coarse aggregate is (0.42~1): 1；The volume ratio of the modified sulfur and powder filler be (0.8~
2.3)∶1。
9. the recyclable well lid of a kind of anti-corrosion according to claim 8, which is characterized in that the fiber is carbon fiber, steel fibre
Dimension or glass fibre.
10. the recyclable well lid of a kind of anti-corrosion according to claim 8, which is characterized in that the coarse aggregate is by following volumes
The raw material of part is uniformly mixed and forms：First coarse aggregate, 50~99 parts by volume, 1~40 parts by volume of the second coarse aggregate, third coarse aggregate 0
~49 parts by volume；The grain size D of first coarse aggregate1For 15mm ＜ D1The grain size of≤25mm, the second coarse aggregate are D2For 8mm ＜ D2≤
15mm, it is 5mm ＜ D that the grain size of third coarse aggregate, which is D3,3≤8mm；The fine aggregate is uniformly mixed by the raw material of following volumes part
It forms：First fine aggregate, 20~49.5 parts by volume, 50~79.5 parts by volume of the second fine aggregate, 0.5~30 volume of third fine aggregate
Part；The grain size d of first fine aggregate1For 2mm ＜ d1≤ 5mm, the grain size d of the second fine aggregate2For 0.5mm ＜ d2≤ 2mm, third are thin
The grain size d of aggregate3For 0.3mm ＜ d3≤0.5mm；The grain size M of the powder filler is 0.001mm≤M≤0.3mm.
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| JP2006342020A (en) * | 2005-06-09 | 2006-12-21 | Ohbayashi Corp | Corrosion protective coating method of concrete structure using modified sulfur and concrete structure to which corrosion protective coating is applied |
| CN201874010U (en) * | 2010-10-21 | 2011-06-22 | 中国水电顾问集团北京勘测设计研究院 | Arch-shaped steel structure cover plate for large-section surge shaft |
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