CN113914530B - Inclined roof fish scale type concrete structure and construction method - Google Patents
Inclined roof fish scale type concrete structure and construction method Download PDFInfo
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- CN113914530B CN113914530B CN202111255512.9A CN202111255512A CN113914530B CN 113914530 B CN113914530 B CN 113914530B CN 202111255512 A CN202111255512 A CN 202111255512A CN 113914530 B CN113914530 B CN 113914530B
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- 239000003973 paint Substances 0.000 claims abstract description 5
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- 239000004793 Polystyrene Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/02—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
- E04D11/02—Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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Abstract
The invention discloses a fish scale type concrete construction method for an inclined roof, which comprises the steps of pouring concrete in two layers, wherein the first layer is fish scale layer concrete, and the second layer is surface layer concrete; the construction method comprises the following steps: pouring after the bottom layer steel bars are bound, the cushion blocks and the welded support ribs are placed, pouring is performed by sequentially pouring from bottom to top in a layering mode through ash barrels, the fish scale shape is formed through manual pressing, the support ribs are used for controlling the highest forming height of the fish scale layer concrete after the fish scale layer concrete is poured, and laying of the fish scale layer concrete is completed; after the fish scale layer concrete is formed, spraying waterproof paint, welding the surface layer reinforcing mesh with the supporting ribs, spraying cement paste, and pouring, collecting and maintaining the surface layer concrete layer; and finally, carrying out surface layer structure construction. The invention also provides a fish scale type concrete structure of the inclined roof. The invention can avoid the phenomena of slipping, segregation, cold joint, trampling deformation and exposed reinforcement of the reinforcing steel bar, loose concrete formation, rough base surface and the like in the construction process of the inclined roof, and ensures the construction quality.
Description
Technical Field
The invention belongs to the field of building construction, and particularly relates to an inclined roof fish scale type concrete structure and a construction method.
Background
In the construction process of the inclined roof, the problems that the construction surface of the inclined roof is large, concrete is poured and separated seriously, concrete is dried too fast in the construction process, the quality protection of steel bars after binding is poor, the concrete of the inclined roof is soft and has more cold joints, the structure of a roof surface layer is easy to hollowly bulge and fall off and the like are often faced, and for engineers, the construction technical problem of the inclined roof is always a key point of trouble. At present, additives are added, the water consumption is reduced, the slump and the workability of concrete are changed, the delay and the concrete slip resistance are increased, and the problems are solved by adopting prefabricated slabs to avoid cast-in-place. In actual construction, the phenomena of sliding, segregation and cold joint of concrete pouring, trampling deformation and exposed reinforcement of reinforcing steel bars, loose concrete forming, rough base surface and the like still occur after the operation. Therefore, a new construction method to approach the above problems is urgently needed.
Disclosure of Invention
The invention aims to provide a fish scale type concrete structure of an inclined roof and a construction method, which can avoid the phenomena of slipping, segregation, cold joint, trampling deformation and exposed reinforcement of reinforcing steel bars, loose concrete formation, rough base surface and the like in the construction process of the inclined roof, and ensure the construction quality.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a construction method of fish scale type concrete for an inclined roof comprises the steps of pouring concrete in two layers, wherein the first layer is fish scale layer concrete, and the second layer is surface layer concrete.
According to the scheme, the construction method comprises the following steps: pouring after the bottom layer steel bars are bound, the cushion blocks and the welded support ribs are placed, pouring is performed by sequentially pouring from bottom to top in a layering mode through ash barrels, the fish scale shape is formed through manual pressing, the support ribs are used for controlling the highest forming height of the fish scale layer concrete after the fish scale layer concrete is poured, and laying of the fish scale layer concrete is completed; after the fish scale layer concrete is formed, spraying waterproof paint, welding the surface layer reinforcing mesh with the supporting ribs, spraying cement paste, and pouring, collecting and maintaining the surface layer concrete layer; and finally, carrying out surface layer structure construction.
According to the scheme, the method specifically comprises the following steps:
Laying and binding a bottom layer steel bar mesh, welding support bars after binding is finished, firmly welding the bottoms of the support bars and the cross positions of the bottom layer steel bar mesh, and firmly welding upper and lower crossed steel bars with the support bars;
After the bottom layer reinforcing mesh is laid, placing a cushion block, manufacturing the cushion block by adopting cement mortar, and cushioning the bottom layer reinforcing mesh by the cushion block, strictly forbidding reinforcing bars of the reinforcing mesh or directly fixing the reinforcing bars on the template by using iron nails and iron wires;
Before the construction of the fish scale layer concrete, calculating the size of a reinforcing steel bar square grid occupied by each barrel of concrete pouring according to the concrete amount contained in an ash barrel, and marking the center of a pouring point by using white chalk;
pouring concrete according to the position of a pouring central point in turn from bottom to top in a layered mode by taking an ash barrel as a unit after pouring the eaves opening turned downwards at the bottom of the inclined roof, manually pressing the concrete into a fish scale shape by using an arc-shaped baffle plate and matching with wood plastering micro-vibration with an arc-shaped end part, wherein the fish scale shape does not need to be glazed, pouring is carried out in a staggered mode among layers, and the highest forming height of the fish scale layer concrete does not exceed the highest point of the upper end of the supporting rib;
after the concrete pouring of the fish scale layer is finished, watering maintenance is carried out;
When the strength of the fish scale layer concrete is not lower than 5%, dismantling and cleaning the downward-turned eaves, the ridge sealing beam and the side forms of the two side sealing boundary beams;
step 5, waterproof coating construction
After the strength of the fish scale layer concrete reaches 75%, spraying waterproof paint with the thickness of 1.2-1.7 mm;
step 6, paving, binding and welding the surface layer reinforcing mesh
After the waterproof coating is sprayed to be dry, binding the surface layer steel bars, and welding the surface layer steel bar mesh with the upper port of the support bar;
step 7, repairing the waterproof coating layer
Repairing the waterproof coating layer 4h before pouring the surface concrete;
step 8, surface concrete pouring, surface folding and maintenance
Before the surface layer concrete is poured, carrying out wet water on the upper surfaces of the fish scale layer concrete after the template and the waterproof coating are sprayed; during pouring, the materials are distributed from bottom to top and from thin to thick by adopting a manual matching hopper, and then surface concrete is vibrated; manually flattening the inclined roof surface layer concrete from top to bottom, and flapping after flattening; before initial setting of concrete, vibrating from bottom to top and leveling; sequentially and circularly constructing until concrete pouring of the surface layer is finished;
after the surface concrete is poured, watering and maintaining;
step 9, roof surface layer structure construction
And after the surface concrete is maintained for a period of time, carrying out roof surface structure construction.
According to the scheme, in the construction process of the fish scale layer concrete in the step 3, the construction process is not interrupted, and the interruption time does not exceed the initial setting state of the concrete; the time interval of the pouring construction between adjacent layers is controlled, and the concrete of the upper layer is poured before the initial setting of the concrete of the next adjacent layer; the construction is emptyd to adjacent two-layer 1/2 oblique roofing long interval, and the layering is reciprocal upwards to be under construction in proper order, pours to roofing ridge sealing beam until oblique roofing top, carries out the ridge sealing beam and both sides at last and seals pouring of boundary beam.
According to the scheme, the support bar is not less than phi 8, and the length of the support bar is the distance between the bottom layer reinforcing mesh and the surface layer reinforcing mesh; the distance between the supporting ribs is not more than 600mm multiplied by 600mm; to ensure the stability of the layered structure.
According to the scheme, the slump of the fish scale layer concrete is 100 +/-20 mm, and the slump of the surface layer concrete is 120 +/-20 mm, so that the concrete is easy to form.
According to the scheme, the fish scale layer concrete adopts S6 concrete with the anti-permeability grade, and is internally doped with 0.6Kg/m 3 Steel fiber to ensure concrete strength.
According to the scheme, in the step 7, the polymer cement-based JS-II waterproof coating with the thickness of 1.5mm or 1.
According to the scheme, in the step 9, the roof surface layer structure comprises a roof leveling layer, a cement waterproof perlite plate, an extruded polystyrene board, a waterproof layer and a roof tile from bottom to top in sequence, so that the stability and the quality of the whole roof structure are ensured.
The invention also provides an inclined roof fish scale type concrete structure which is obtained by adopting the construction method of the inclined roof fish scale type concrete and comprises fish scale layer concrete, a waterproof coating layer, surface layer concrete, a roof leveling layer, a cement waterproof perlite plate, an extruded polystyrene board, a waterproof layer and a roof tile from bottom to top in sequence.
The invention has the following beneficial effects:
by adopting special fish scale layer concrete pouring construction, the problem that the concrete slides downwards during pouring can be effectively solved, the concrete compactness, the surface flatness and the appearance quality which are difficult to control are controlled, the construction quality reaches the expected effect, and the common problems of leakage and hidden danger caused by concrete structure construction are thoroughly solved;
the construction is carried out in a two-layer concrete pouring mode, so that the problems of serious concrete pouring segregation, too fast concrete drying in the construction process, poor quality protection of steel bars after binding, soft and more cold joints of inclined roof concrete, easy hollowing and falling of a roof surface layer structure and the like can be effectively solved, and the quality of the inclined roof is improved;
the layered construction mode can reduce the stacking investment of constructors, ensure the continuity and the normalization of line production of the operation of the constructors, reduce the difficulty of the pouring quality control of the inclined roof, ensure the construction safety of the inclined roof, save the construction cost, improve the construction efficiency and shorten the construction period;
the slump and the workability of the concrete are changed by reducing the amount of additives and water, so that the concrete is delayed and hindered from slipping, more quality problems caused by construction non-standardization are effectively avoided, the cost is effectively reduced, the construction safety is ensured, the process is simple, and the construction speed is effectively improved;
the materials and the process are conventional, the process flow is simple to operate, and the civilized green construction is fully embodied;
the layered pouring is adopted, the pouring thickness of each layer is reduced, the fish scale layer construction process is adopted, the fish scale layer is poured to form a layered platform and is in a fish scale type waterproof structure, the segregation is greatly controlled, and the concrete density and the waterproof performance are guaranteed;
adopt the support reinforcement, fine assurance the interval of double-deck reinforcing bar, cooperation structure layering construction ensures the stability of layer structure, effectively avoids because the reinforcing bar net piece that appears is disintegrated, is out of shape to artificial trampling, appears leaking the condition such as muscle, has ensured the holding power effect of reinforcing bar in the structure.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic view of the construction of a curved baffle;
FIG. 2 is a schematic construction diagram of a fish scale type concrete structure of an inclined roof;
FIG. 3 is a schematic structural view of a pitched roof fish scale type concrete structure;
in the figure: 1. the roof comprises a baffle, 2, a handle, 3, fish scale layer concrete, 4, a waterproof coating layer, 5, surface layer concrete, 6, a roof leveling layer, 7, a cement waterproof perlite plate, 8, an extruded polystyrene board, 9, a waterproof layer, 10, a roof tile, 11, a bottom layer reinforcing mesh, 12, a supporting rib, 13, a surface layer reinforcing mesh, 14, a ridge sealing beam, 15, a sealing edge beam, 16 and a bottom downward-turning eaves.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Referring to fig. 1-3, the construction method of the fish scale type concrete for the inclined roof comprises the steps of pouring concrete in two layers, wherein the first layer is fish scale layer concrete, and the second layer is surface layer concrete. The construction method comprises the following steps: pouring after the bottom layer steel bars are bound, the cushion blocks and the welded support ribs are placed, pouring is performed by sequentially pouring from bottom to top in a layering mode through ash barrels, the fish scale shape is formed through manual pressing, the support ribs are used for controlling the highest forming height of the fish scale layer concrete after the fish scale layer concrete is poured, and laying of the fish scale layer concrete is completed; after the concrete is formed, spraying waterproof paint, welding the surface layer reinforcing mesh with the support rib, spraying cement paste, and performing pouring, surface folding and maintenance on the second layer of concrete (surface layer concrete); and finally, carrying out surface layer structure construction such as a roof leveling layer, water prevention, heat preservation, roof tiles and the like.
The method comprises the following specific steps:
Organization preparation work of personnel, materials, equipment and materials is well done; meanwhile, preparation work such as construction of a formwork system, establishment of a material conveying system, training of constructors, bottom crossing and the like is made in advance;
after the concrete pouring of the roof frame column and the cantilever beam is finished, a construction joint is kept in the cantilever beam section, and a large-scale drawing including an axis, a beam line, a member beam (sealing edge beam) plane projection line, a cornice board slope line, a stop line and the like is placed according to the style of the inclined roof;
Laying and binding a bottom layer reinforcing mesh according to design requirements, welding and constructing a supporting rib after binding is finished, firmly welding the bottom of the supporting rib and the cross position of the bottom layer reinforcing mesh, welding upper and lower crossed reinforcing bars with the supporting rib, and firmly connecting; wherein, the support bars are not less than 8, the length of the support bars is the distance between the bottom layer reinforcing mesh and the surface layer reinforcing mesh (avoiding the risk of bar leakage), the distance between the support bars is not more than 600mm multiplied by 600mm, and the distance between the support bars and the tail end of the plate bar is not more than 150m;
After the bottom layer reinforcing mesh is laid, cushion blocks are placed, and the placing distance is not more than 300mm multiplied by 300mm; adopting cement mortar to manufacture a cushion block, wherein the cushion block is used for cushioning the reinforcing steel bar, and strictly prohibiting the reinforcing steel bar from being cushioned or directly fixing the reinforcing steel bar on the template by using iron nails and iron wires;
Before the construction of the fish scale layer concrete, calculating the size of a reinforcing steel bar square grid occupied by pouring of each barrel of concrete according to the concrete content of an ash barrel, and marking the center of a pouring point by using white chalk;
the material conveying system is established, a tower crane and a crane are used for vertical transportation, a concrete transportation tank car is transported to a specified position, the tower crane and a crane bucket are used for transferring and transporting concrete, and an ash bucket is transported to constructors; a vertical transportation device is not needed, a cockscomb hanger and a horizontal transportation rope are needed to establish a transportation and transmission channel, and an ash barrel is transported to constructors; the whole material conveying channel needs to be guaranteed to be normal and convenient, and concrete on the uniform inclined plane is poured by taking an ash bucket as a unit;
after pouring is carried out on a downward turning cornice at the bottom of the inclined roof, concrete is transferred into workers by taking an ash bucket as a unit, the workers pour the concrete in layers from bottom to top in sequence according to the position of a pouring central point, manual operation is adopted for pressing the concrete into a fish scale shape by using an arc-shaped baffle (comprising a baffle 1 and a handle 2) in cooperation with a wood trowel (the end part is arc-shaped) through slight vibration, no light collection is needed, the pouring is carried out in a staggered mode among layers, the highest forming height after the concrete of the fish scale layer is poured uses the highest point of the upper end of a supporting rib as a boundary control, namely the highest point of the concrete of the fish scale layer is not more than the highest point of the upper end of the supporting rib;
in the construction process, the construction process is not interrupted, and the interruption time does not exceed the initial setting state of the concrete; the time interval of the pouring construction between adjacent layers is controlled, and the concrete of the previous layer is poured before the initial setting of the concrete of the next layer; dumping construction is preferably carried out on two adjacent layers of 1/2 inclined roofs at a long interval, the construction is sequentially carried out upwards in a layered reciprocating mode until the inclined roofs are jacked and poured to the roof ridge sealing beam, and finally the pouring of the roof ridge sealing beam and the two side sealing edge beams is carried out;
after the concrete pouring is finished, the concrete is required to be watered and maintained within 12 hours. Watering times are required to ensure that the concrete has enough wet state, and the curing time is not less than 7 days so as to ensure the strength of the concrete;
step 5, dismantling the eaves mouth, the ridge sealing beam and the side forms of the edge beams with two sealed sides
After the fish scale layer concrete is constructed for 24 hours, and the strength of the concrete is not lower than 5%, the eaves mouth, the ridge sealing beam and the side forms of the two side sealing boundary beams are dismantled and cleaned under the condition that the surface and the edges are not damaged by removing the formwork;
step 6, waterproof coating construction
After the fish scale layer concrete is maintained for 7 days and the strength of the concrete reaches 75%, cleaning up slag, films, dust and the like on the surface of the fish scale layer concrete, and spraying a polymer cement-based JS-II waterproof coating with the thickness of 1.5 mm;
step 7, paving, binding and welding surface layer steel bars
After the waterproof coating is sprayed to be dry, binding surface layer steel bars to form a surface layer steel bar mesh, welding the surface layer steel bar mesh and the upper port of the support rib, and enabling the cross point of the steel bar mesh to coincide with the upper port of the support rib, so that the support rib and the surface layer steel bar mesh are prevented from being welded difficultly, and the situation that the steel bar mesh is deformed and leaks ribs in the construction process is avoided;
step 8, repairing the waterproof coating layer
Marking the damaged part of the waterproof coating in the processes of laying, binding and welding the surface layer steel bars, and repairing the damaged part 4 hours before the surface layer concrete is poured; the repairing material can be 1.5mm thick polymer cement-based JS-II waterproof coating, or 1;
step 9, pouring, collecting and maintaining surface layer concrete
Before concrete pouring, carrying out wet water on the upper surfaces of the fish scale layers after the templates and the waterproof coatings are sprayed; during pouring, cloth is distributed from bottom to top and from thin to thick by adopting a manual matching hopper, then the surface concrete is vibrated by adopting a portable light-weight inserted vibrating bar, and the vibrating bar is not easy to touch a fish scale layer during vibrating and is easy to drag and vibrate the surface; in the vibrating process, the concrete which appears in the concrete sliding downwards to the fish scale layer step and the plate thickness does not meet the requirements, and the local part is thicker, so that the inclined roof surface layer concrete is flattened by manually matching tools such as shovels and the like from top to bottom, the beating is carried out after flattening (an operator stands at the lower part of a beated surface when beating, and the beating plate surface is parallel to the inclined roof for beating), and the portable flat-plate vibrator is adopted to carry out the works such as leveling the finished surface after vibrating from bottom to top and the like before the concrete is initially set; sequentially and circularly constructing until concrete pouring of the surface layer is finished;
after the concrete pouring is finished, watering and curing within 12 hours; watering times are required to ensure that the concrete has enough wet state, and the curing time is not less than 7 days so as to ensure the strength of the concrete;
step 10, roof surface layer structure construction
And after the surface concrete is maintained for 28 days, carrying out construction on roof surface layer structures such as a roof leveling layer, a cement waterproof perlite plate, an extruded polystyrene board, a waterproof roof tile and the like.
In the invention, two ends of the supporting rib are respectively and firmly welded with the cross positions of the bottom layer reinforcing mesh and the surface layer reinforcing mesh, and the upper and lower crossed reinforcing bars are welded with the supporting rib to ensure firm connection. Because the slope is large, the concrete forming is difficult, when the sloping roof is poured, a mixing plant is informed to adjust the mix proportion of the concrete in time, the slump of the fish scale layer concrete is controlled to be 100 +/-20 mm, and the slump of the surface layer concrete is controlled to be 120 +/-20 mm. Wherein, the fish scale layer concrete adopts the concrete with the impermeability grade of S6, the concrete strength grade is improved by one grade, and the inner volume is 0.6Kg/m 3 Steel fibers.
The invention also provides an inclined roof fish scale type concrete structure which is obtained by adopting the construction method of the inclined roof fish scale type concrete and comprises fish scale layer concrete 3, a waterproof coating layer 4, surface layer concrete 5, a roof leveling layer 6, a cement waterproof perlite plate 7, an extruded polystyrene board 8, a waterproof layer 9 and a roof tile 10 from bottom to top in sequence.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (7)
1. The construction method of the fish scale type concrete for the inclined roof is characterized by comprising the following steps: concrete is poured in two layers, wherein the first layer is fish scale layer concrete, and the second layer is surface layer concrete;
the method comprises the following steps:
step 1, laying, binding and welding bottom layer steel bars
Laying and binding a bottom layer steel bar mesh, welding support bars after binding is finished, firmly welding the bottoms of the support bars and the cross positions of the bottom layer steel bar mesh, and firmly welding upper and lower crossed steel bars with the support bars;
step 2, cushion block placement
After the bottom layer reinforcing mesh is laid, placing a cushion block, manufacturing the cushion block by adopting cement mortar, and cushioning the bottom layer reinforcing mesh by the cushion block, strictly forbidding reinforcing bars of the reinforcing mesh or directly fixing the reinforcing bars on the template by using iron nails and iron wires;
step 3, constructing and maintaining the fish scale layer concrete
Before the construction of the fish scale layer concrete, calculating the size of a reinforcing steel bar square grid occupied by pouring of each barrel of concrete according to the concrete content of an ash barrel, and marking the center of a pouring point by using white chalk;
pouring concrete according to the position of a pouring central point in turn from bottom to top in a layered mode by taking an ash barrel as a unit after pouring the eaves opening turned downwards at the bottom of the inclined roof, manually pressing the concrete into a fish scale shape by using an arc-shaped baffle plate and matching with wood plastering micro-vibration with an arc-shaped end part, wherein the fish scale shape does not need to be glazed, pouring is carried out in a staggered mode among layers, and the highest forming height of the fish scale layer concrete does not exceed the highest point of the upper end of the supporting rib;
after the concrete pouring of the fish scale layer is finished, watering and maintaining;
step 4, dismantling the eaves mouth, the ridge sealing beam and the side forms of the edge beams with two sealed sides
When the strength of the fish scale layer concrete is not lower than 5%, dismantling and cleaning the eaves turning-down port, the ridge sealing beam and the side dies of the two side sealing boundary beams;
step 5, waterproof coating construction
After the strength of the fish scale layer concrete reaches 75%, spraying waterproof paint with the thickness of 1.2-1.7 mm;
step 6, paving, binding and welding the surface layer reinforcing mesh
After the waterproof coating is sprayed to be dry, binding surface layer steel bars immediately, and welding the surface layer steel bar mesh with the upper end port of the support bar;
step 7, repairing the waterproof coating layer
Repairing a waterproof coating layer 4 hours before surface concrete is poured;
step 8, pouring, collecting and maintaining surface layer concrete
Before the surface layer concrete is poured, carrying out wet water on the upper surfaces of the fish scale layer concrete after the template and the waterproof coating are sprayed; when pouring, cloth is distributed from bottom to top and from thin to thick by adopting a manual matching hopper, and then surface concrete is vibrated; manually flattening the inclined roof surface layer concrete from top to bottom, and flapping after flattening; before initial setting of the concrete, vibrating from bottom to top and then leveling; sequentially and circularly constructing until concrete pouring of the surface layer is finished;
after the surface concrete is poured, watering and maintaining;
step 9, roof surface layer structure construction
And after the surface concrete is maintained for a period of time, carrying out roof surface structure construction.
2. The pitched roof fish scale type concrete construction method according to claim 1, wherein: step 3, in the construction process of the fish scale layer concrete, the construction process is not interrupted, and the interruption time does not exceed the initial setting state of the concrete; the time interval of the pouring construction between adjacent layers is controlled, and the concrete of the upper layer is poured before the initial setting of the concrete of the next adjacent layer; the construction is emptyd to adjacent two-layer 1/2 oblique roofing long interval, and the layering is reciprocal upwards to be under construction in proper order, and roof ridge seals the roof beam until oblique roofing top pouring, carries out the roof ridge at last and seals pouring of roof beam and both sides edge beam.
3. The pitched roof fish scale type concrete construction method according to claim 1, wherein: the support bar is not less than phi 8, and the length of the support bar is the distance between the bottom layer reinforcing mesh and the surface layer reinforcing mesh; the spacing between the supporting ribs is not more than 600mm multiplied by 600mm.
4. The pitched roof fish scale type concrete construction method according to claim 1, wherein: the slump of the fish scale layer concrete is 100 +/-20 mm, and the slump of the surface layer concrete is 120 +/-20 mm.
5. The pitched roof fish scale type concrete construction method according to claim 4, wherein: the fish scale layer concrete adopts impervious S6 concrete with the inner doping of 0.6Kg/m 3 Steel fibers.
6. The pitched roof fish scale type concrete construction method according to claim 1, wherein: in step 7, the waterproof coating layer is repaired by using 1.5mm thick polymer cement-based JS-II waterproof coating or 1.
7. The pitched roof fish scale type concrete construction method according to claim 1, wherein: in step 9, the roof surface layer structure comprises a roof leveling layer, a cement waterproof perlite plate, an extruded polystyrene board, a waterproof layer and a roof tile from bottom to top in sequence.
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