CN101143461B - Method for making cavity form component and the cavity form component made by the method - Google Patents

Method for making cavity form component and the cavity form component made by the method Download PDF

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Publication number
CN101143461B
CN101143461B CN2007101658210A CN200710165821A CN101143461B CN 101143461 B CN101143461 B CN 101143461B CN 2007101658210 A CN2007101658210 A CN 2007101658210A CN 200710165821 A CN200710165821 A CN 200710165821A CN 101143461 B CN101143461 B CN 101143461B
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China
Prior art keywords
upper plate
lower shoe
cavity former
sidewall
rod member
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Expired - Fee Related
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CN2007101658210A
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Chinese (zh)
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CN101143461A (en
Inventor
邱则有
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Hunan Qiuzeyou Patent Strategy Planning Co Ltd
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邱则有
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Abstract

A manufacture method for a superposition layer cavity die-shell element is characterized in that: (1) a die-shell element with an opening can be formed firstly. (2) The opening side is arranged upwards. (3) A superposition layer is hung or positioned on the opening side. (4) The opening side is sealed off. A curing is done after a slurry is hardened. The cavity form element has the characteristicsof high strength and stiffness, no easy breakage, easy production and can participate the pressing and force transferring of the floor. The invention can be applied to the use of the hollow floor, roof, wall and foundation plate of a cast-in-place reinforced concrete or prestressed concrete, as well as a vierendeel bridge.

Description

A kind of preparation method of overlapping layers cavity former component and the mould casing component of making thereof
The application for the applying date be that October 21, application number in 2003 are 200310101177.2, name is called the dividing an application of application for a patent for invention of " a kind of cavity former component ".
(1) technical field
The present invention relates to a kind of preparation method of overlapping layers cavity former component and the mould casing component of making thereof.
(2) background technology
At present, cast-in-situ concrete hollow floor is to use wider floor structural form, and the lightening permanent loose tool of filling in it has various hollow pipes and box, and box has hollow or solid.Is that ZL99249798.1, name are called " filling reinforced concrete fiber reinforcement type thin-wall member " utility model patent as the applicant in the patent No. of application on November 29th, 1999, it discloses a kind of thin-wall mould-shell member, comprise upper plate, on every side sidewall, go to the bottom, upper plate, on every side sidewall, going to the bottom surrounds the polyhedron cavity, upper plate, on every side sidewall, going to the bottom contains fabric reinforcement.And for example the applicant in the application number of November 23 calendar year 2001 application be 01140106.0, publication number is that CN1356442, name are called " a kind of mould with cavity structure for casting reinforced concrete floor slab " application for a patent for invention, it comprises " upper plate, on every side sidewall, go to the bottom; upper plate, on every side sidewall, going to the bottom surrounds the polyhedron cavity former component; upper plate, sidewall, the reinforces such as containing fiber or steel wire of going to the bottom on every side, characteristics such as that this cavity former component has is in light weight, intensity is high, simple in structure, convenient construction and transport.But, do not have in this cavity former component and add competent structure, thereby the bulk strength of cavity former component and rigidity are relatively poor, be prone to the phenomenon of cavity former component breakage, after being applied to cast-in-situ concrete hollow floor, can not participate in the stressed and power transmission of cast-in-situ concrete hollow floor preferably.Therefore, develop a kind of novel cavity former component for being badly in need of.
(3) summary of the invention
The object of the present invention is to provide a kind of preparation method of cavity former component, have the characteristics such as easy of making.
A kind of preparation method of cavity former component is characterized in that:
1) elder generation makes the mould casing component of an opening;
2) with opening surface up;
3) overlapping layers is hung or is positioned on the opening surface;
4) shutoff opening surface again, treat the slip sclerosis after, maintenance.
A kind of preparation method of overlapping layers cavity former component is characterized in that:
1) mixes the system cement mortar earlier;
2) in mould, make one deck cement mortar one deck fibrous mesh cloth, again the multilayer build-up of one deck cement mortar by upper plate and the open cavity mould casing component that surrounds of sidewall on every side;
3) prefabricated rod member is connected by sidewall around overlapping layers and two, or prefabricated rod member is connected as a single entity by overlapping layers and upper plate and lower shoe;
4) in the lower shoe mould, make the ferro-cement lower shoe, the open cavity mould casing component is not coupled before the setting and harden at lower shoe, fibrous mesh cloth that will stretch out or steel wire reinforce are anchored in the lower shoe simultaneously, treat setting and harden after, maintenance.
Solution of the present invention is on the basis of existing technology, comprise upper plate, sidewall, lower shoe on every side, upper plate, sidewall, lower shoe are enclosed the polyhedron cavity former component on every side, upper plate, contain reinforce in sidewall or lower shoe at least a on every side, it is characterized in that also including at least one prefabricated rod member, prefabricated rod member and prefabricated upper plate, on every side between sidewall or the lower shoe by cast-in-place now smear or after the wet pulp of smearing solidify overlapping layers and connect to one, prefabricated rod member one end and upper plate, the other end and lower shoe connect as one.Like this, owing to be provided with prefabricated rod member in the cavity former component, thereby the intensity height of cavity former component, rigidity greatly, be not prone to the phenomenon of cavity former component breakage, be applied to cast-in-situ concrete hollow floor after, can participate in the stressed and power transmission of superstructure; Simultaneously because rod member is prefabricated rod member, by cast-in-place now smear or after the wet pulp of smearing solidify that overlapping layers is superimposed to be fixed on prefabricated upper plate or on every side on sidewall or the lower shoe, though there is bonding interface each other, but the making of mould casing component is easier, and production efficiency is higher, and cost is lower; In addition, characteristics such as that cavity former component also has is simple in structure, easy construction, speed of application are fast, thereby reached purpose of the present invention, the hollow building cover, roof system, body of wall, sole plate and the hollow bridges that are applicable to cast-in-situ reinforced concrete or prestressed reinforced concrete are used, and are particularly useful for hollow arch without beam and use.
Feature of the present invention is that also described prefabricated rod member contains reinforce.Like this, the intensity of prefabricated rod member and rigidity have obtained significantly improving, and it is stressed better with transmission force property.
Feature of the present invention is that also the reinforce in the prefabricated rod member stretches out from rod end, is anchored at wet pulp and solidifies in the overlapping layers.
Feature of the present invention is that also the reinforce drawknot that stretch out the junction on the reinforce that stretches out in the prefabricated rod member and the cavity former component is integral, and is anchored at wet pulp and solidifies in the overlapping layers.Like this, prefabricated rod member links for whole by the wall of reinforce and cavity former component, has improved the whole mechanical property of cavity former component greatly.
Feature of the present invention is that also an end of prefabricated rod member stretches out outside the cavity former component, connects to integral body by wet pulp curing overlapping layers and basic unit around the shaft.Like this, after mould casing component is applied in the cast-in-situ concrete hollow floor, prefabricated rod member extension that its mould casing component is outer and Cast-in-place concrete engage and have formed one, realized that no separation layer directly engages, make prefabricated rod member and bonding and build-in between the Cast-in-place concrete in the mould casing component better, solve the low and bad problem of cooperative work performance of bond strength between prefabricated and the Cast-in-place concrete preferably, increased substantially the stress performance and the overall performance of superstructure.
Feature of the present invention is that also rod end also exposes reinforce is arranged.If also expose reinforce, then more firm with the Cast-in-place concrete bonding, the globality of superstructure is better.
Feature of the present invention also is upper plate, the reinforce in sidewall or the lower shoe stretches into drawknot anchoring mutually in the matrix of each adjacent member each other on every side.Reinforce is silk, muscle slender member, or the cloth and the net of silk, the braiding of muscle slender member or weaving, or the gluing cloth of nonwoven, net, or sheet, band, or the above combination of said two devices, can be at least a in reinforcing bar, steel wire, bar-mat reinforcement, steel wire, fiber, fibre bundle, fibrous mesh cloth, nonwoven, metal foil band, porose thin band, strap, the braid over braid etc. as reinforce.Like this, reinforce stretches in the matrix of each adjacent member drawknot mutually, and then the globality of mould casing component is better, and intensity is higher, and rigidity is bigger.Simultaneously, the kind of reinforce is many, is convenient to design and the selecting for use of reinforce when manufacturing mould casing component, helps reducing material cost, to satisfy the needs of various different occasions.
Feature of the present invention also is upper plate, has reinforce to expose in sidewall or the lower shoe on every side.
Feature of the present invention is that also the horizontal profile of described cavity former component or vertical cross section are shaped as rectangle, square, corrugated or circular.
Feature of the present invention is that also the horizontal profile of described cavity former component or vertical cross section are shaped as polygon, arc angle polygon, chamfering polygon, multi sphere limit shape, corrugated or circular.
Feature of the present invention is that also described polygon is arc angle polygon, chamfering polygon or multi sphere limit shape.Like this, the variation of mould casing component shape, make mould casing component be applied in the cast-in-situ concrete hollow floor after, correspondingly formed various difform cast-in-situ concrete structures, thereby made that the structure of cast-in-situ concrete hollow floor is more reasonable, made things convenient for design and construction unit to select for use.
Feature of the present invention also is also to be provided with on the described cavity former component at least a in inner corner trim, chamfering, groove, hole or the external corner.Like this, after mould casing component was applied in the cast-in-situ concrete hollow floor, Cast-in-place concrete poured in inner corner trim, chamfering, groove, pit, the hole, and the corresponding Cast-in-place concrete that forms the part adds competent structure; The boss module that is provided with on the mould casing component, raised line, external corner can be found time the concrete that does not stress in the superstructure, further alleviate the weight of superstructure self, save the consumption of concrete, reduce the cost of superstructure, also improve the performance of superstructure simultaneously.
Feature of the present invention is that also described inner corner trim, chamfering or groove are parallel, quadrature, oblique or grade separation setting mutually or form latticed setting mutually.Like this, after mould casing component is applied in the cast-in-situ concrete hollow floor, inner corner trim on the mould casing component, chamfering, groove, raised line self or be parallel, quadrature, oblique or grade separation setting mutually or form grid, after concrete is built at above-mentioned position, the corresponding Cast-in-place concrete that has formed parallel, quadrature, oblique or grade separation adds competent structure, has improved the mechanical property of cast-in-situ concrete hollow floor greatly.
Feature of the present invention also is also to be provided with in the enclosed cavity of described cavity former component at least a in ribbed stiffener or the reinforcement.Like this, after mould casing component is applied in the cast-in-situ concrete hollow floor, ribbed stiffener, reinforcement that is provided with in the mould casing component or the ribbed stiffener that exposes, reinforcement can form the cast-in-place and prefabricated composite construction that combines with Cast-in-place concrete, have optimized the inner stress system of cast-in-situ concrete hollow floor.
Feature of the present invention also is at least a the exposing outside the cavity former component in described ribbed stiffener or the reinforcement.
Feature of the present invention also is to also have on described ribbed stiffener or the reinforcement reinforce to expose.If also have reinforce to expose on it, then mould casing component and Cast-in-place concrete bonding is more firm, and the globality of superstructure is better.
Feature of the present invention is that also described ribbed stiffener or reinforcement and wall body are superimposed.If prefabricated ribbed stiffener, reinforcement are superimposed in basic unit, then the making of mould casing component is more convenient.
Feature of the present invention also is the superimposed back of ribbed stiffener or reinforcement and wall body dew muscle shape, netted reinforce.
Feature of the present invention also is to be provided with light material in the enclosed cavity of described cavity former component.The sound insulation of mould casing component, heat insulation, heat-insulating property have been improved like this, greatly; Simultaneously, mould casing component also has good shock resistance, has reduced the breakage rate of product in the construction application process.Light material can be foamed plastics, expanded perlite, expanded vermiculite, foaming or aerated light concrete, rock wool, mineral wool, mineral wool, haydite or haydite concrete etc., and the diversity of its light material kind is drawn materials when being convenient to produce nearby, helps reducing production costs.
Feature of the present invention also be described upper plate or on every side at least a in the sidewall be dismountable movable part.Like this, can make things convenient for the situation of checking mould casing component inside at any time, also can perhaps, drench shower nozzle etc. simultaneously at any time at interior section or whole filling with light material of mould casing component as terminal box, hydroelectric line, fire-fighting at inner other parts of installing of mould casing component.
Feature of the present invention also be the upper plate of described cavity former component or on every side at least a in the outer surface of sidewall be corrugated or zigzag outer surface.Like this, the upper plate of cavity body, at least one in the outer surface of sidewall is corrugated, zigzag, plucking shape or exasperate outer surface on every side, improved the adhesion between mould casing component and the Cast-in-place concrete greatly, that has also improved simultaneously superstructure hangs performance and overall performance.
Feature of the present invention is that also described cavity former component is provided with align member.Align member can be draw ring, drag hook, iron wire, feet, small lugs, little protruding nail or other device.Like this, after mould casing component is applied in the cast-in-situ concrete hollow floor, can accurately locate mould casing component, prevent that phenomenons such as mould casing component floats, displacement from producing when building concrete, simultaneously, also can carry out spacingly, guarantee the pouring quality of superstructure effectively reinforcing bar.
Feature of the present invention is that also described cavity former component is provided with connector connected to one another between the cavity former component.Connector can be reinforcing bar, bar-mat reinforcement, steel wire, steel wire, angle steel, channel-section steel, L shaped steel, T-steel, cutting ferrule, bolt, male and female groove, socket component, indention, tongue, groove, bayonet socket, cutting ferrule, hole, embedded iron parts etc.Like this, after mould casing component was applied in the cast-in-situ concrete hollow floor, the connector that is provided with on the mould casing component can be controlled the distance between the mould casing component effectively, reliably, the width and the height of control Cast-in-place concrete rib, the pouring quality of assurance superstructure internal structure; Simultaneously, also help mould casing component connection location each other, perhaps constitute member in groups, accelerate speed of application.
Feature of the present invention also is the toss that described lower shoe is extended with toss or reveals reinforce.Like this, lower shoe is extended with toss, when then mould casing component is applied in the cast-in-situ concrete hollow floor, can save construction formwork, has improved efficiency of construction greatly; If a plurality of mould casing components connect into the gang mould mould component by toss, then the efficiency of construction of mould casing component is higher, and construction cost is lower.
Feature of the present invention is that also plural at least cavity former component connects into the gang mould mould component by toss.
Feature of the present invention also is at least a overlapping layers that is provided with of described upper plate or sidewall or lower shoe or toss on every side.Like this, owing to be provided with overlapping layers, thereby the making of mould casing component is easier, production efficiency is higher, and production cost is lower.Simultaneously, the intensity and the rigidity of mould casing component are bigger, pile up, cracky more not in transportation and the construction and installation process.
Feature of the present invention also is the described upper plate or at least a overlapping layers that is provided with of sidewall or lower shoe on every side.Like this, when mould casing component is made, owing to be provided with overlapping layers, can make the mould casing component of an opening earlier, then, with opening surface up, overlapping layers is hung or is positioned on the opening surface, shutoff opening surface again, after treating the slip sclerosis, maintenance can obtain the mould casing component that basic unit is superimposed with overlapping layers to stipulating the length of time, its making is easier, production efficiency is higher, and corresponding cost is lower.
Feature of the present invention is that also described lower shoe is that cement mortar is made, the upper plate of cavity former component or on every side the wall of sidewall be that Cement fibre is made.
Feature of the present invention is that also described lower shoe is that concrete is made, the upper plate of cavity former component or on every side the wall of sidewall make for the Cement fibre net.
Feature of the present invention is that also described lower shoe makes for the lightweight concrete, the upper plate of cavity former component or on every side the wall of sidewall be that cement steel net or cement steel wire are made.
Feature of the present invention is that also described lower shoe makes for the polymer concrete, the upper plate of cavity former component or on every side the wall of sidewall make for the concrete plate.
Feature of the present invention is that also described lower shoe makes for the polymer concrete, the upper plate of cavity former component or on every side the wall of sidewall be that wood glue plate, plastics or metal crimp template are made.Like this, the variation of the lower shoe of mould casing component, upper plate and the material of sidewall making on every side can make mould casing component fully satisfy the needs of various different situations, helps reducing product cost.
Feature of the present invention is that also described lower shoe makes for the polymer concrete, the upper plate of cavity former component or on every side the wall of sidewall make for the lightweight concrete.
Feature of the present invention is that also overlapping layers is light aggregate concrete layer, aerating concrete layer, cement sand bed, Cement fibre layer, cement steel screen layer, Cement Concrete layer, reinforced concrete layer, plastic plate, metal crimp template or wood glue plate.Like this, overlapping layers is made the variation of material, can make mould casing component fully satisfy the needs of various different situations, helps reducing product cost.
Feature of the present invention also is upper plate, at least a in sidewall or the lower shoe is to be stained with the muscle of Binder Materials or the reinforce of net is formed by stacking by multilayer on every side.Like this, be stained with upper plate that the reinforce of the muscle of Binder Materials or net is formed by stacking, sidewall or lower shoe on every side, have characteristics such as intensity height, rigidity be big, in light weight by multilayer, the respective mode mould component pile up, cracky more not in transportation and the construction and installation process.
Feature of the present invention is that also described cavity former component is provided with the carrying part.The carrying part can be handle, suspension hook, suspension ring or other device.Like this, can very easily cavity former component be piled up, transport, lift and construct, reduce the work difficulty and the working strength of above-mentioned operation, help improving efficiency of construction, reduce construction cost.
(4) description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1.In each accompanying drawing, 1 is upper plate, 2 be around sidewall, 3 is lower shoe, 4 is reinforce, 5 is prefabricated rod member, 6 is overlapping layers, below in each accompanying drawing, number identically, its explanation is identical.As shown in Figure 1, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side also is provided with prefabricated rod member 5 in its cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3.
Fig. 2 is the structural representation of the embodiment of the invention 2, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, also is provided with reinforcing bar reinforce 4 in its prefabricated rod member 5.
Fig. 3 is the structural representation of the embodiment of the invention 3, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, also be provided with reinforce 4 in the prefabricated rod member 5, the reinforce 4 in its prefabricated rod member 5 stretches out and is anchored at wet pulp from rod end and solidifies in the overlapping layers 6.
Fig. 4 is the structural representation of the embodiment of the invention 4, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, one end of its prefabricated rod member 5 stretches out upper plate 1, solidifies overlapping layers 6 by wet pulp around the shaft and connects to integral body with basic unit.
Fig. 5 is the structural representation of the embodiment of the invention 5, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, its upper plate 1 and on every side the reinforces 4 in the sidewall 2 stretch in the matrix of adjacent members lapping and anchoring mutually each other, diagram reinforce 4 is fibrous mesh cloth and reinforcing bar.
Fig. 6 is the structural representation of the embodiment of the invention 6, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 connects as one by sidewall 2 around the overlapping layers 6 and corresponding two, and the vertical cross section on its cavity former component top is shaped as arch.
Fig. 7 is the structural representation of the embodiment of the invention 7, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 connects as one by sidewall 2 around the overlapping layers 6 and corresponding two, also is provided with inner corner trim 7, pit 10, boss module 12 and external corner 14 on its cavity former component simultaneously.
Fig. 8 is the structural representation of the embodiment of the invention 8, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, also is provided with inner corner trim 7, chamfering 8, groove 9, hole 11 and raised line 13 on its cavity former component simultaneously.
Fig. 9 is the structural representation of the embodiment of the invention 9, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, also be provided with prefabricated ribbed stiffener 15 and cast-in-place reinforcement 16 in the enclosed cavity of its cavity former component, the basic unit of prefabricated ribbed stiffener 15 and lower shoe 3 is superimposed.
Figure 10 is the structural representation of the embodiment of the invention 10, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, also be provided with light material 17 in the enclosed cavity of its cavity former component, diagram light material 17 is an expanded perlite.
Figure 11 is the structural representation of the embodiment of the invention 11, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, be provided with reinforce 4 in sidewall 2 and the lower shoe 3 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and lower shoe 3, and its upper plate 1 is movable dismountable fastening cover plate.
Figure 12 is the structural representation of the embodiment of the invention 12, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, the upper plate 1 of its cavity former component and on every side the outer surface of sidewall 2 be rough external surface.
Figure 13 is the structural representation of the embodiment of the invention 13, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1, be provided with reinforce 4 in sidewall 2 and the lower shoe 3 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, the upper plate 1 of its cavity former component is provided with align member 18, and illustrated position member 18 is for supporting locating piece.
Figure 14 is the structural representation of the embodiment of the invention 14, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1, be provided with reinforce 4 in sidewall 2 and the lower shoe 3 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, its cavity former component is provided with the connector 19 of the usefulness that is connected to each other between the cavity former component, and diagram connector 19 is rod member and latch hole.
Figure 15 is the structural representation of the embodiment of the invention 15, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1, be provided with reinforce 4 in sidewall 2 and the lower shoe 3 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, its lower shoe 3 is extended with toss 20, and a plurality of cavity former components connect into the gang mould mould component by toss 20.
Figure 16 is the structural representation of the embodiment of the invention 16, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1, be provided with reinforce 4 in sidewall 2 and the lower shoe 3 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, lower shoe 3 is extended with toss 20, and a plurality of cavity former components connect into the gang mould mould component by toss 20, and its lower shoe 3 is provided with overlapping layers 21.
Figure 17 is the structural representation of the embodiment of the invention 17, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 connects as one by sidewall 2 around the overlapping layers 6 and corresponding two, and its lower shoe 3 is provided with overlapping layers 21.
Figure 18 is the structural representation of the embodiment of the invention 18, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1, be provided with reinforce 4 in sidewall 2 and the lower shoe 3 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 connects as one by sidewall 2 around the overlapping layers 6 and corresponding two, its lower shoe 3 is the concrete lower shoe, upper plate 1 and on every side sidewall 2 be the fiber cement mortar wall.
Figure 19 is the structural representation of the embodiment of the invention 19, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1, be provided with reinforce 4 in sidewall 2 and the lower shoe 3 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 connects as one by sidewall 2 around the overlapping layers 6 and corresponding two, upper plate 1 and lower shoe 3 are provided with overlapping layers 21, and its overlapping layers 21 is the light aggregate concrete layer.
Figure 20 is the structural representation of the embodiment of the invention 20, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1, be provided with reinforce 4 in sidewall 2 and the lower shoe 3 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, its upper plate 1 and on every side sidewall 2 be formed by stacking by the netted reinforce 4 that multilayer is stained with Binder Materials.
(5) specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
A kind of preparation method of cavity former component is characterized in that:
1) elder generation makes the mould casing component of an opening;
2) with opening surface up;
3) overlapping layers is hung or is positioned on the opening surface;
4) shutoff opening surface again, treat the slip sclerosis after, maintenance.
A kind of preparation method of overlapping layers cavity former component is characterized in that:
1) mixes the system cement mortar earlier;
2) in mould, make one deck cement mortar one deck fibrous mesh cloth, again the multilayer build-up of one deck cement mortar by upper plate 1 and the open cavity mould casing component that surrounds of sidewall 2 on every side;
3) prefabricated rod member 5 is connected by sidewall 2 around the overlapping layers 6 and two, or prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3;
4) in the lower shoe mould, make ferro-cement lower shoe 3, the open cavity mould casing component is not coupled before the setting and harden at lower shoe 3, fibrous mesh cloth that will stretch out or steel wire reinforce 4 are anchored in the lower shoe 3 simultaneously, treat setting and harden after, maintenance.
The present invention as shown in drawings, comprise upper plate 1, sidewall 2, lower shoe 3 on every side, upper plate 1, sidewall 2, lower shoe 3 are enclosed the polyhedron cavity former component on every side, upper plate 1, contain reinforce 4 in sidewall 2 or lower shoe 3 at least a on every side, it is characterized in that also including at least one prefabricated rod member 5, prefabricated rod member 5 and prefabricated upper plate 1, on every side between sidewall 2 or the lower shoe 3 by cast-in-place now smear or after the wet pulp of smearing solidify overlapping layers 6 and connect to one, prefabricated rod member 5 one ends and upper plate 1, the other end and lower shoe 3 connect as one.In each accompanying drawing, 1 is upper plate, 2 be around sidewall, 3 is lower shoe, 4 is reinforce, 5 is prefabricated rod member, 6 is overlapping layers, below in each accompanying drawing, number identically, its explanation is identical.As shown in Figure 1, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side also is provided with prefabricated rod member 5 in its cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3.
Feature of the present invention is that also described prefabricated rod member 5 contains reinforce 4.Fig. 2 is the structural representation of the embodiment of the invention 2, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, also is provided with reinforcing bar reinforce 4 in its prefabricated rod member 5.
Feature of the present invention is that also the reinforce 4 in the prefabricated rod member 5 stretches out from rod end, is anchored at wet pulp and solidifies in the overlapping layers 6.Fig. 3 is the structural representation of the embodiment of the invention 3, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, also be provided with reinforce 4 in the prefabricated rod member 5, the reinforce 4 in its prefabricated rod member 5 stretches out and is anchored at wet pulp from rod end and solidifies in the overlapping layers 6.
Feature of the present invention is that also reinforce 4 drawknots that stretch out the junction on the reinforce that stretches out in the prefabricated rod member 54 and the cavity former component are integral, and are anchored at wet pulp and solidify in the overlapping layers 6.
Feature of the present invention is that also an end of prefabricated rod member 5 stretches out outside the cavity former component, solidifies overlapping layers 6 by wet pulp around the shaft and connects to integral body with basic unit.Fig. 4 is the structural representation of the embodiment of the invention 4, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, one end of its prefabricated rod member 5 stretches out upper plate 1, solidifies overlapping layers 6 by wet pulp around the shaft and connects to integral body with basic unit.
Feature of the present invention is that also rod end also exposes reinforce 4 is arranged.
Feature of the present invention also is upper plate 1, the reinforces 4 in sidewall 2 or the lower shoe 3 stretch into drawknot anchoring mutually in the matrix of each adjacent member each other on every side.Reinforce 4 is silk, muscle slender member, or the cloth and the net of silk, the braiding of muscle slender member or weaving, or the gluing cloth of nonwoven, net, or sheet, band, or the above combination of said two devices, can be at least a in reinforcing bar, steel wire, bar-mat reinforcement, steel wire, fiber, fibre bundle, fibrous mesh cloth, nonwoven, metal foil band, porose thin band, strap, the braid over braid etc. as reinforce 4.Fig. 5 is the structural representation of the embodiment of the invention 5, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, its upper plate 1 and on every side the reinforces 4 in the sidewall 2 stretch in the matrix of adjacent members lapping and anchoring mutually each other, diagram reinforce 4 is fibrous mesh cloth and reinforcing bar.
Feature of the present invention also is upper plate 1, has reinforce 4 to expose in sidewall 2 or the lower shoe 3 on every side.
Feature of the present invention is that also the horizontal profile of described cavity former component or vertical cross section are shaped as rectangle, square, corrugated or circular.
Feature of the present invention is that also the horizontal profile of described cavity former component or vertical cross section are shaped as polygon.
Feature of the present invention is that also described polygon is arc angle polygon, chamfering polygon or multi sphere limit shape.Fig. 6 is the structural representation of the embodiment of the invention 6, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 connects as one by sidewall 2 around the overlapping layers 6 and corresponding two, and the vertical cross section on its cavity former component top is shaped as arch.
Feature of the present invention also is also to be provided with on the described cavity former component at least a in inner corner trim 7, chamfering 8, groove 9, hole 11 or the external corner 14.Fig. 7 is the structural representation of the embodiment of the invention 7, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 connects as one by sidewall 2 around the overlapping layers 6 and corresponding two, also is provided with inner corner trim 7, pit 10, boss module 12 and external corner 14 on its cavity former component simultaneously.Fig. 8 is the structural representation of the embodiment of the invention 8, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, also is provided with inner corner trim 7, chamfering 8, groove 9, hole 11 and raised line 13 on its cavity former component simultaneously.
Feature of the present invention is that also described inner corner trim 7, chamfering 8 or groove 9 are parallel, quadrature, oblique or grade separation setting mutually or form latticed setting mutually.As shown in Figure 8, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, its inner corner trim 7, chamfering 8, groove 9, raised line 13 self or be parallel, quadrature, oblique or grade separation setting mutually or form grid.
Feature of the present invention also is also to be provided with in the enclosed cavity of described cavity former component at least a in ribbed stiffener 15 or the reinforcement 16.Fig. 9 is the structural representation of the embodiment of the invention 9, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, also is provided with prefabricated ribbed stiffener 15 and cast-in-place reinforcement 16 in the enclosed cavity of its cavity former component.
Feature of the present invention also is at least a the exposing outside the cavity former component in described ribbed stiffener 15 or the reinforcement 16.
Feature of the present invention also is to also have on described ribbed stiffener 15 or the reinforcement 16 reinforce 4 to expose.
Feature of the present invention is that also described ribbed stiffener 15 or reinforcement 16 and wall body are superimposed.As shown in Figure 9, the basic unit of prefabricated ribbed stiffener 15 and lower shoe 3 is superimposed.
Feature of the present invention is that also described ribbed stiffener 15 or reinforcement 16 reveal muscle shape, netted reinforce 4 with the superimposed back of wall body.
Feature of the present invention also is to be provided with light material 17 in the enclosed cavity of described cavity former component.Figure 10 is the structural representation of the embodiment of the invention 10, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, also be provided with light material 17 in the enclosed cavity of its cavity former component, diagram light material 17 is an expanded perlite.
Feature of the present invention also be described upper plate 1 or on every side at least a in the sidewall 2 be dismountable movable part.Figure 11 is the structural representation of the embodiment of the invention 11, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, be provided with reinforce 4 in sidewall 2 and the lower shoe 3 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and lower shoe 3, and its upper plate 1 is movable dismountable fastening cover plate.
Feature of the present invention also be the upper plate 1 of described cavity former component or on every side at least a in the outer surface of sidewall 2 be corrugated or zigzag outer surface.Figure 12 is the structural representation of the embodiment of the invention 12, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, the upper plate 1 of its cavity former component and on every side the outer surface of sidewall 2 be rough external surface.
Feature of the present invention is that also described cavity former component is provided with align member 18.Figure 13 is the structural representation of the embodiment of the invention 13, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1, be provided with reinforce 4 in sidewall 2 and the lower shoe 3 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, the upper plate 1 of its cavity former component is provided with align member 18, and illustrated position member 18 is for supporting locating piece.
Feature of the present invention is that also described cavity former component is provided with connector 19 connected to one another between the cavity former component.Figure 14 is the structural representation of the embodiment of the invention 14, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1, be provided with reinforce 4 in sidewall 2 and the lower shoe 3 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, its cavity former component is provided with the connector 19 of the usefulness that is connected to each other between the cavity former component, and diagram connector 19 is rod member and latch hole.
Feature of the present invention also is the toss 20 that described lower shoe 3 is extended with toss 20 or reveals reinforce 4.Figure 15 is the structural representation of the embodiment of the invention 15, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1, be provided with reinforce 4 in sidewall 2 and the lower shoe 3 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, and its lower shoe 3 is extended with toss 20.
Feature of the present invention is that also plural at least cavity former component connects into the gang mould mould component by toss 20.As shown in figure 15, a plurality of cavity former components connect into the gang mould mould component by toss 20.
Feature of the present invention also is at least a overlapping layers 21 that is provided with of described upper plate 1 or sidewall 2 or lower shoe 3 or toss 20 on every side.Figure 16 is the structural representation of the embodiment of the invention 16, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1, be provided with reinforce 4 in sidewall 2 and the lower shoe 3 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, lower shoe 3 is extended with toss 20, and a plurality of cavity former components connect into the gang mould mould component by toss 20, and its lower shoe 3 is provided with overlapping layers 21.
Feature of the present invention also is the described upper plate 1 or at least a overlapping layers 21 that is provided with of sidewall 2 or lower shoe 3 on every side.Figure 17 is the structural representation of the embodiment of the invention 17, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1 and be provided with reinforce 4 in the sidewall 2 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 connects as one by sidewall 2 around the overlapping layers 6 and corresponding two, and its lower shoe 3 is provided with overlapping layers 21.
Feature of the present invention is that also described lower shoe 3 makes for cement mortar, the upper plate 1 of cavity former component or on every side the wall of sidewall 2 be that Cement fibre is made.
Feature of the present invention is that also described lower shoe 3 makes for concrete, the upper plate 1 of cavity former component or on every side the wall of sidewall 2 make for the Cement fibre net.Figure 18 is the structural representation of the embodiment of the invention 18, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1, be provided with reinforce 4 in sidewall 2 and the lower shoe 3 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 connects as one by sidewall 2 around the overlapping layers 6 and corresponding two, its lower shoe 3 is the concrete lower shoe, upper plate 1 and on every side sidewall 2 be the fiber cement mortar wall.
Feature of the present invention is that also described lower shoe 3 makes for the lightweight concrete, the upper plate 1 of cavity former component or on every side the wall of sidewall 2 be that cement steel net or cement steel wire are made.
Feature of the present invention is that also described lower shoe 3 makes for the polymer concrete, the upper plate 1 of cavity former component or on every side the wall of sidewall 2 make for the concrete plate.
Feature of the present invention is that also described lower shoe 3 makes for the polymer concrete, the upper plate 1 of cavity former component or on every side the wall of sidewall 2 be that wood glue plate, plastics or metal crimp template are made.
Feature of the present invention is that also described lower shoe 3 makes for the polymer concrete, the upper plate 1 of cavity former component or on every side the wall of sidewall 2 make for the lightweight concrete.
Feature of the present invention is that also overlapping layers 21 is light aggregate concrete layer, aerating concrete layer, cement sand bed, Cement fibre layer, cement steel screen layer, Cement Concrete layer, reinforced concrete layer, plastic plate, metal crimp template or wood glue plate.Figure 19 is the structural representation of the embodiment of the invention 19, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1, be provided with reinforce 4 in sidewall 2 and the lower shoe 3 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 connects as one by sidewall 2 around the overlapping layers 6 and corresponding two, upper plate 1 and lower shoe 3 are provided with overlapping layers 21, and its overlapping layers 21 is the light aggregate concrete layer.
Feature of the present invention also is upper plate 1, at least a in sidewall 2 or the lower shoe 3 is to be stained with the muscle of Binder Materials or the reinforce 4 of net is formed by stacking by multilayer on every side.Figure 20 is the structural representation of the embodiment of the invention 20, upper plate 1, sidewall 2 and lower shoe 3 surround the polyhedron cavity former component on every side, upper plate 1, be provided with reinforce 4 in sidewall 2 and the lower shoe 3 on every side, also be provided with prefabricated rod member 5 in the cavity former component, prefabricated rod member 5 is connected as a single entity by overlapping layers 6 and upper plate 1 and lower shoe 3, its upper plate 1 and on every side sidewall 2 be formed by stacking by the netted reinforce 4 that multilayer is stained with Binder Materials.
Feature of the present invention is that also described cavity former component is provided with carrying part 22.As shown in figure 16, the toss 20 of cavity former component is provided with handle carrying part 22.

Claims (8)

1. the preparation method of an overlapping layers cavity former component is characterized in that:
1) elder generation makes the mould casing component of an opening;
2) with opening surface up;
3) overlapping layers is hung or is positioned on the opening surface;
4) shutoff opening surface again, treat the slip sclerosis after, maintenance.
2. the preparation method of an overlapping layers cavity former component is characterized in that:
1) mixes the system cement mortar earlier;
2) in mould, make one deck cement mortar one deck fibrous mesh cloth, again the multilayer build-up of one deck cement mortar by upper plate (1) and the open cavity mould casing component that surrounds of sidewall (2) on every side;
3) prefabricated rod member (5) is connected by sidewall (2) around the overlapping layers (6) and two, or prefabricated rod member (5) is connected as a single entity by overlapping layers (6) and upper plate (1) and lower shoe (3);
4) in the lower shoe mould, make ferro-cement lower shoe (3), the open cavity mould casing component is not coupled before the setting and harden at lower shoe (3), fibrous mesh cloth that will stretch out or steel wire reinforce (4) are anchored in the lower shoe (3) simultaneously, treat setting and harden after, maintenance.
3. the mould casing component of the preparation method gained of a kind of overlapping layers cavity former component according to claim 2, it is characterized in that also including at least one prefabricated rod member (5), prefabricated rod member (5) and prefabricated upper plate (1) or on every side between sidewall (2) or the lower shoe (3) by cast-in-place now smear or after the wet pulp of smearing solidify overlapping layers (6) and connect to one.
4. mould casing component according to claim 3 is characterized in that described prefabricated rod member (5) contains reinforce (4).
5. mould casing component according to claim 4 is characterized in that the reinforce (4) in the prefabricated rod member (5) stretches out from rod end, is anchored at wet pulp and solidifies in the overlapping layers (6).
6. mould casing component according to claim 5 is characterized in that reinforce (4) drawknot that stretch out the junction on the reinforce (4) that stretches out in the prefabricated rod member (5) and the cavity former component is integral, and is anchored at wet pulp and solidifies in the overlapping layers (6).
7. mould casing component according to claim 3 is characterized in that an end of prefabricated rod member (5) stretches out outside the cavity former component, solidifies overlapping layers (6) by wet pulp around the shaft and connects to integral body with basic unit.
8. mould casing component according to claim 7 is characterized in that rod end also exposes reinforce (4) is arranged.
CN2007101658210A 2003-10-21 2003-10-21 Method for making cavity form component and the cavity form component made by the method Expired - Fee Related CN101143461B (en)

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Application Number Priority Date Filing Date Title
CN2007101658210A CN101143461B (en) 2003-10-21 2003-10-21 Method for making cavity form component and the cavity form component made by the method

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2160693Y (en) * 1993-03-20 1994-04-06 于少华 Shuttering member
EP0884427B1 (en) * 1997-06-11 2002-04-03 Eduarda Fanha N. Ferreira Rebelo A better solution for the concrete boxes normally used in the fungiform pavements

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2160693Y (en) * 1993-03-20 1994-04-06 于少华 Shuttering member
EP0884427B1 (en) * 1997-06-11 2002-04-03 Eduarda Fanha N. Ferreira Rebelo A better solution for the concrete boxes normally used in the fungiform pavements

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