CN104481063B - Grouting waterproof sealing strip and water proof structure of pre-cast wall panel vertical seam and construction method of water proof structure - Google Patents
Grouting waterproof sealing strip and water proof structure of pre-cast wall panel vertical seam and construction method of water proof structure Download PDFInfo
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- CN104481063B CN104481063B CN201410759488.6A CN201410759488A CN104481063B CN 104481063 B CN104481063 B CN 104481063B CN 201410759488 A CN201410759488 A CN 201410759488A CN 104481063 B CN104481063 B CN 104481063B
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Abstract
The invention discloses a grouting waterproof sealing strip and a water proof structure of a pre-cast wall panel vertical seam and a construction method of the water proof structure. The structure comprises pre-cast wall panels and the grouting waterproof sealing strip connected between the pre-cast wall panels, wherein a through sealing ditch groove is formed along the vertical direction of each of the two side ends of the pre-cast wall panels; the cross section of each sealing ditch groove is the same as the half part, which is divided by a cross section middle line, of the grouting waterproof sealing strip in shape; the cross section of each sealing ditch groove and the half part of the grouting waterproof sealing strip are tightly stuck to each other and accord with each other; a half of the grouting waterproof sealing strip is embedded in one sealing ditch groove of one pre-cast wall panel; the other half of the grouting waterproof sealing strip is embedded in one sealing ditch groove of the other adjacent pre-cast wall panel; a water-guiding groove, a grout discharging hole and a grouting hole in the routing waterproof sealing strip all correspond to vertical connecting seams of the two pre-cast wall panels; the water-guiding groove is positioned in a water-facing surface; a micro-expanding grouting material fills the cavity of the grouting waterproof sealing strip. The construction method provided by the invention is simple; the waterproof effect and seepage-proofing effect of the pre-cast wall panel vertical seam are good; the method can be widely applied to pre-cast wall panel vertical seam waterproof construction and construction of a room wall panel with waterproof and moisture-proof functions.
Description
Technical field
The present invention relates to a kind of vertical seam grouting and water-proof sealing strip, structure and construction method thereof.
Background technology
Development along with building industry, building industrialization has become as the inexorable trend of domestic construction industry development, building industry will be from traditional extensive mode of production progressively to socialization's big mode of production transition, building industrialization be exactly use standardized designs, factorial praluction, prefabricated construction, integration finishing and information system management be the mode of production of principal character, and designing, produce, construct, the link such as exploitation forms complete, organic industrial chain, it is achieved the industrialization of house building overall process, intensive and socialization.But domestic construction industrialization at present is started late, system imperfection lacks corresponding codes and standards and technological process.Prefabricated panel is that an important component in building industrialization builds, various seam is certainly existed in prefabricated panel installation process, and seam crossing water-proofing treatment there is also hidden danger of quality, at present for prefabricated panel seam Construction for waterproofing treatment complex process, be difficult to that operation, efficiency is low and DeGrain, it is thus desirable to one is operable to simply, respond well, be suitable to the water proof structure mode that through engineering approaches produces, solve this hidden danger of quality.
Summary of the invention
It is an object of the invention to provide a kind of prefabricated panel and vertically stitch grouting and water-proof sealing strip, waterproof construction and construction method thereof, prefabricated panel seam grouting and water-proof gasket structure to be solved is complicated, efficiency of construction is low, the unconspicuous technical problem of waterproof effect.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of prefabricated panel vertically stitches grouting and water-proof sealing strip, it is connected between adjacent two pieces of prefabricated panels, described grouting and water-proof sealing strip is abnormity hollow rubber strip, described grouting and water-proof sealing strip transverse width on its cross section is more than the gap between adjacent two pieces of prefabricated panels, the longitudinally wide thickness less than prefabricated panel on its cross section, transverse width in the middle part of grouting and water-proof sealing strip cavity is also more than the gap between adjacent two pieces of prefabricated panels, the cavity bilateral symmetry distribution of described grouting and water-proof sealing strip, longitudinally wide less than in the middle part of flange width and cavity of the wing root width of described both wings, the middle part sidewall midline position of grouting and water-proof sealing strip vertically has one elongated gutter, the upper end of another sidewall center line of the middle part of grouting and water-proof sealing strip has a slurry outlet, lower end has a corresponding injected hole.
The wall thickness of described grouting and water-proof sealing strip is not less than 4mm, and the thickness of groove bottom of gutter is 1.5～2.5mm.
Being shaped as rectangle in the middle part of described grouting and water-proof sealing strip cavity, the cavity both wings of grouting and water-proof sealing strip are shaped as trapezoidal or dove-tail.
A kind of waterproof construction applying prefabricated panel vertically to stitch grouting and water-proof sealing strip, including prefabricated panel and the grouting and water-proof sealing strip that is connected between prefabricated panel, the dual-side of described prefabricated panel has an elongated sealed groove each along vertical direction, in the middle part of the ledge of described sealed groove prominent in groove, the half portion shape that the shape of cross section of described sealed groove is demarcated with cross section center line with grouting and water-proof sealing strip is identical, and be mutually close to agree with, the half portion of grouting and water-proof sealing strip embeds in the sealed groove of one piece of prefabricated panel, second half portion embeds in the sealed groove of another adjacent block prefabricated panel, the gutter of grouting and water-proof sealing strip, the vertical abutment joint of all corresponding two pieces of prefabricated panels of slurry outlet and injected hole, and gutter is positioned at upstream face, it is filled with microdilatancy grouting material in the cavity of described grouting and water-proof sealing strip.
The dispensing of described microdilatancy grouting material is calculated by weight to: cement 570～590Kg, flyash 70～90Kg, extender 63～83Kg, sand 1230～1270Kg, water 240～260Kg, water reducer 7～9Kg.
Described microdilatancy grouting material limited expansion rate >=3.5 × 10 of 14 days in water-4, restriction contract with dry rate≤3.0 × 10 of 28 days in atmosphere-4。
The construction method of a kind of vertical joint waterproofing structure of prefabricated panel as mentioned, specifically comprises the following steps that
Step one, when prefabricated panel makes, the two side ends at wallboard reserves sealed groove.
Step 2, installs one piece of prefabricated panel.
Step 3, embeds grouting and water-proof sealing strip with half portion that gutter is boundary in the sealed groove of this block prefabricated panel.
Step 4, installs another block prefabricated panel adjacent.
Step 5, embeds the another outer half of grouting and water-proof sealing strip in the sealed groove of this block prefabricated panel, and gutter is positioned at the seam crossing of two pieces of prefabricated panels and is positioned at upstream face side.
Step 6, injects microdilatancy grouting material from injected hole in the cavity of grouting and water-proof sealing strip.
Step 7, when slip casting to microdilatancy grouting material is flowed out from slurry outlet, stops slip casting.
Step 8, after microdilatancy grouting material final set, carries out levelling sealing to the gap fluid sealant of injected hole, slurry outlet and two pieces of prefabricated panels.
Compared with prior art the invention have the characteristics that and beneficial effect:
Instant invention overcomes the shortcoming that tradition prefabricated panel vertical joint waterproofing complex process, effect are bad, solve high-quality, high efficiency realizes the technical problem that prefabricated panel vertical abutment joint is waterproof.
The grouting and water-proof gasket structure of present invention design is unique, it is reliable to connect simplicity, waterproof effect is obvious, and grouting and water-proof sealing strip uses the thickness rubber not less than 4mm to make, and has good toughness and elasticity；Its special contour structures can effectively extend infiltration path, blocks steam invasion to greatest extent；It is provided with gutter in upstream face side on grouting and water-proof sealing strip, can encroached water be collected in gutter, form unobstructed drainage channel, it is ensured that the water entering seam crossing can be got rid of timely and effectively outside prefabricated panel；This grouting and water-proof sealing strip size is certain, can carry out batch production while prefabricated panel design is prefabricated makes, will not be too much lose time, it is ensured that efficiency.
The waterproof construction of the present invention uses grouting and water-proof sealing strip to connect two pieces of prefabricated panels, and inject microdilatancy grouting material by the injected hole on grouting and water-proof sealing strip and slurry outlet to its inner chamber, because of the grouting material microdilatancy performance when condensing, understand outward expansion thus extrude prefabricated panel, under the extruding of prefabricated panel and microdilatancy grouting material, ensure that it can be full of in the sealed groove of prefabricated panel owing to grouting and water-proof sealing strip has good toughness and elasticity, can absorb or compensate pressure, block infiltration path, thus reach waterproof effect, ensure that the stability of two pieces of prefabricated panels simultaneously；This microdilatancy grouting material is special standby grouting material, i.e. can guarantee that filling and injecting slurry water-proof sealing strip, ensures that again prefabricated panel displacement does not occurs because expanding excessive.
The construction method of the present invention is simple, easily realize, utilize in grouting and water-proof sealing strip, irrigate microdilatancy grouting material, block infiltration path by extruding, utilize gutter that the water invaded and collect is got rid of in time simultaneously, reach prefabricated panel vertical joint waterproofing anti-seepage effect, wherein prefabricated panel and grouting and water-proof sealing strip can be carried out standard design, i.e. both can continue to twist factorial praluction, in-site installation simultaneously, not only can guarantee that structure was installed accurately but also can guarantee that efficiency of construction
The composite can be widely applied to the construction of prefabricated panel vertical joint waterproofing and have the room wallboard construction of waterproof and dampproof function.
Accompanying drawing explanation
The present invention will be further described in detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the grouting and water-proof sealing strip of the present invention.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Fig. 3 is the structure schematic top plan view of the prefabricated panel of the present invention.
Fig. 4 is the Construction State schematic diagram of the grouting and water-proof sealing strip of the present invention.
Reference: 1-prefabricated panel, 2-sealed groove, 3-grouting and water-proof sealing strip, 4-gutter, 5-slurry outlet, 6-injected hole, 7-microdilatancy grouting material.
Detailed description of the invention
nullEmbodiment is shown in Figure 1，This prefabricated panel vertically stitches grouting and water-proof sealing strip，It is connected between adjacent two pieces of prefabricated panels 1，Described grouting and water-proof sealing strip 3 is abnormity hollow rubber strip，The described grouting and water-proof sealing strip 3 transverse width on its cross section is more than the gap between adjacent two pieces of prefabricated panels，The longitudinally wide thickness less than prefabricated panel on its cross section，Transverse width in the middle part of grouting and water-proof sealing strip cavity is also more than the gap between adjacent two pieces of prefabricated panels，The cavity bilateral symmetry distribution of described grouting and water-proof sealing strip，Longitudinally wide less than in the middle part of flange width and cavity of the wing root width of described both wings，The middle part sidewall midline position of grouting and water-proof sealing strip vertically has one elongated gutter 4，The upper end of another sidewall center line of the middle part of grouting and water-proof sealing strip has a slurry outlet 5、Lower end has a corresponding injected hole 6，The wall thickness of described grouting and water-proof sealing strip is not less than 4mm，The thickness of groove bottom of gutter 4 is 2mm.
Shown in Figure 2, it is shaped as rectangle in the middle part of the cavity of described grouting and water-proof sealing strip, the cavity both wings of grouting and water-proof sealing strip are shaped as trapezoidal.
nullShown in Figure 4，A kind of waterproof construction applying described prefabricated panel vertically to stitch grouting and water-proof sealing strip，Including prefabricated panel 1 and the grouting and water-proof sealing strip 3 that is connected between prefabricated panel，Shown in Figure 3，The dual-side of described prefabricated panel 1 has an elongated sealed groove 2 each along vertical direction，In the middle part of the ledge of described sealed groove 2 prominent in groove，The half portion shape that the shape of cross section of described sealed groove 2 is demarcated with cross section center line with grouting and water-proof sealing strip 3 is identical、And be mutually close to agree with，The half portion of grouting and water-proof sealing strip 3 embeds in the sealed groove of one piece of prefabricated panel、Second half portion embeds in the sealed groove of another adjacent block prefabricated panel，The gutter 4 of grouting and water-proof sealing strip、Slurry outlet 5 and the vertical abutment joint of the most corresponding two pieces of prefabricated panels of injected hole 6、And gutter 4 is positioned at upstream face，It is filled with microdilatancy grouting material 7 in the cavity of described grouting and water-proof sealing strip 3，Described microdilatancy grouting material 7 limited expansion rate >=3.5 × 10 of 14 days in water-4, restriction contract with dry rate≤3.0 × 10 of 28 days in atmosphere-4, the dispensing of described microdilatancy grouting material 7 is calculated by weight to: cement 570～590Kg, flyash 70～90Kg, extender 63～83Kg, sand 1230～1270Kg, water 240～260Kg, water reducer 7～9Kg, microdilatancy grouting material 7 dispensing used in this example is cement 580Kg in every cubic metre of microdilatancy grouting material 7, flyash 80Kg, extender 73Kg, sand 1250Kg, water 250Kg, water reducer 7.9Kg, wherein extender: use sulphoaluminate expander, water reducer: the water reducer requiring water-reducing rate to be 20%, cement: No. 42.5 Portland cements, flyash: first level flour coal ash.
The construction method of a kind of vertical joint waterproofing structure of prefabricated panel as mentioned, specifically comprises the following steps that
Step one, when prefabricated panel 1 makes, the two side ends at wallboard reserves sealed groove 2: carry out secondary detailingi according to prefabricated panel drawing, determines the rational position that prefabricated panel vertically stitches, design prefabricated sealing groove structure, according to design size customized production grouting and water-proof sealing strip.
Step 2, installs one piece of prefabricated panel.
Step 3, embeds grouting and water-proof sealing strip 3 with half portion that gutter 4 is boundary in the sealed groove of this block prefabricated panel.
Step 4, installs another block prefabricated panel adjacent.
Step 5, embeds the another outer half of grouting and water-proof sealing strip 3 in the sealed groove of this block prefabricated panel, and gutter 4 is positioned at the seam crossing of two pieces of prefabricated panels and is positioned at upstream face side.
Step 6, injects microdilatancy grouting material 7 from injected hole 6 in the cavity of grouting and water-proof sealing strip 3.
Step 7, when slip casting to microdilatancy grouting material 7 is flowed out from slurry outlet 5, stops slip casting.
Step 8, after microdilatancy grouting material 7 final set, the gap fluid sealant of injected hole 6, slurry outlet 5 and two pieces of prefabricated panels is carried out levelling sealing: injected hole 6, slurry outlet 5 position cement mortar are carried out floating or hidden with ornament materials, carries out encapsulation process at wallboard gap with fluid sealant.
Construction Attention Points: 1, preferably together design with grouting and water-proof sealing strip when prefabricated panel Deepen Design, it is ensured that grouting and water-proof sealing strip can be full of prefabricated sealed groove, and guarantees installing front finished product protection in place.
When 2, installing prefabricated panel, first installing and fix one piece, simultaneously by grouting and water-proof sealing strip embedding sealing groove, then install second piece of prefabricated panel, and reinforce simultaneously, installation site requires accurately, gutter 4 prefabricated panel to be in seam crossing, and in upstream face side.
3, after two pieces of prefabricated panels are installed and are fixed, both can be in the milk, the microdilatancy grouting material 7 injected hole 6 bottom grouting and water-proof sealing strip is injected, the slip casting initial stage, it is slowly injected into, it is ensured that grouting and water-proof sealing strip can be full of sealed groove space, when top slurry outlet 5 has microdilatancy grouting material 7 to flow out, illustrate already filled with, slip casting can be stopped.
Claims (5)
- null1. a prefabricated panel vertically stitches grouting and water-proof sealing strip，It is connected between adjacent two pieces of prefabricated panels (1)，It is characterized in that: described grouting and water-proof sealing strip (3) is abnormity hollow rubber strip，Described grouting and water-proof sealing strip transverse width on its cross section is more than the gap between adjacent two pieces of prefabricated panels，The longitudinally wide thickness less than prefabricated panel on its cross section，Transverse width in the middle part of grouting and water-proof sealing strip cavity is also more than the gap between adjacent two pieces of prefabricated panels，The cavity bilateral symmetry distribution of described grouting and water-proof sealing strip，Longitudinally wide less than in the middle part of flange width and cavity of the wing root width of described both wings，The middle part sidewall midline position of grouting and water-proof sealing strip vertically has one elongated gutter (4)，The upper end of another sidewall center line of the middle part of grouting and water-proof sealing strip has a slurry outlet (5)、Lower end has a corresponding injected hole (6)；The wall thickness of described grouting and water-proof sealing strip is not less than 4mm, and the thickness of groove bottom of gutter (4) is 1.5～2.5mm；Being shaped as rectangle in the middle part of described grouting and water-proof sealing strip cavity, the cavity both wings of grouting and water-proof sealing strip are shaped as trapezoidal.
- null2. the prefabricated panel applied described in claim 1 vertically stitches the waterproof construction of grouting and water-proof sealing strip，Including prefabricated panel (1) and the grouting and water-proof sealing strip (3) that is connected between prefabricated panel，It is characterized in that: the dual-side of described prefabricated panel (1) has an elongated sealed groove (2) each along vertical direction，In the middle part of the ledge of described sealed groove (2) prominent in groove，The half portion shape that the shape of cross section of described sealed groove (2) is demarcated with cross section center line with grouting and water-proof sealing strip (3) is identical、And be mutually close to agree with，The half portion of grouting and water-proof sealing strip (3) embeds in the sealed groove of one piece of prefabricated panel、Second half portion embeds in the sealed groove of another adjacent block prefabricated panel，The gutter (4) of grouting and water-proof sealing strip、Slurry outlet (5) and the vertical abutment joint of the most corresponding two pieces of prefabricated panels of injected hole (6)、And gutter (4) is positioned at upstream face，It is filled with microdilatancy grouting material (7) in the cavity of described grouting and water-proof sealing strip (3).
- Waterproof construction the most according to claim 2, it is characterised in that: the dispensing of described microdilatancy grouting material (7) is calculated by weight to: cement 570～590Kg, flyash 70～90Kg, extender 63～83Kg, sand 1230～1270Kg, water 240～260Kg, water reducer 7～9Kg.
- Waterproof construction the most according to claim 3, it is characterised in that: described microdilatancy grouting material (7) limited expansion rate >=3.5 × 10 of 14 days in water-4, restriction contract with dry rate≤3.0 × 10 of 28 days in atmosphere-4。
- 5. the construction method of the waterproof construction as described in Claims 2 or 3 or 4, it is characterised in that specifically comprise the following steps thatStep one, when prefabricated panel (1) makes, the two side ends at wallboard reserves sealed groove (2)；Step 2, installs one piece of prefabricated panel；Step 3, embeds grouting and water-proof sealing strip (3) with half portion that gutter (4) is boundary in the sealed groove of this block prefabricated panel；Step 4, installs another block prefabricated panel adjacent；Step 5, embeds the another outer half of grouting and water-proof sealing strip (3) in the sealed groove of this block prefabricated panel, and gutter (4) is positioned at the seam crossing of two pieces of prefabricated panels and is positioned at upstream face side；Step 6, injects microdilatancy grouting material (7) from injected hole (6) in the cavity of grouting and water-proof sealing strip (3)；Step 7, when slip casting to microdilatancy grouting material (7) is flowed out from slurry outlet (5), stops slip casting；Step 8, after microdilatancy grouting material (7) final set, carries out levelling sealing to the gap fluid sealant of injected hole (6), slurry outlet (5) and two pieces of prefabricated panels.
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Cited By (1)
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| CN109556030A (en) * | 2018-12-29 | 2019-04-02 | 中山市流丽照明有限公司 | A kind of embedded outdoor water-proof LED wall wash lamp |
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| CN108978731A (en) * | 2018-10-09 | 2018-12-11 | 郑州大学 | Underground engineering waterproofing of movement joints construction and its construction method |
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| CN112240215B (en) * | 2020-10-23 | 2023-01-31 | 中铁工程装备集团有限公司 | Waterproof structure between water-stop strip and prefabricated component and construction method of waterproof structure |
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Denomination of invention: Precast wallboard vertical joint grouting waterproof sealing strip, waterproof structure and its construction method Effective date of registration: 20220119 Granted publication date: 20170111 Pledgee: China Construction Bank Corporation Linyi Shizhong sub branch Pledgor: TIANYUAN CONSTRUCTION GROUP Co.,Ltd. Registration number: Y2022980000732 |
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