CN207110817U - Toilet threshold waterproof construction - Google Patents
Toilet threshold waterproof construction Download PDFInfo
- Publication number
- CN207110817U CN207110817U CN201721061975.0U CN201721061975U CN207110817U CN 207110817 U CN207110817 U CN 207110817U CN 201721061975 U CN201721061975 U CN 201721061975U CN 207110817 U CN207110817 U CN 207110817U
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- Prior art keywords
- cement mortar
- stone
- coating layer
- waterproof coating
- threshold
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Abstract
The utility model discloses a kind of toilet threshold waterproof construction, including base layer structure main body and threshold stone, and beam is turned over provided with fine-stone concrete sealing above the base layer structure main body of threshold stone position, and fine-stone concrete sealing turns over and is provided with waterproof coating layer one above beam；Lightweight aggregate concrete packed layer is provided with above base layer structure main body on the inside of threshold stone; fine-stone concrete screed-coat is provided with above lightweight aggregate concrete packed layer; waterproof coating layer two is provided with above fine-stone concrete screed-coat, the top of waterproof coating layer two is provided with cement mortar protective course one；Waterproof coating layer one, cement mortar protective course one, cement mortar binder course is equipped with above the base layer structure main body on the outside of threshold stone; fine-stone concrete sealing turns over beam and the seam crossing of cement mortar protective course one and cement mortar binder course two is provided with waterproof coating layer three, and the upper plane of cement mortar binder course two is equal to or less than the upper plane of waterproof coating layer one.Possible effect of the water with reduction toilet to exterior space seepage.
Description
Technical field
A kind of buildings waterproof structure is the utility model is related to, more particularly to a kind of toilet threshold waterproof construction.
Background technology
Toilet is in use, accomodation ground can stockpile substantial amounts of water, therefore accomodation ground can all do waterproof measure, water
Toilet doorway is flowed to even if leaking into below toilet floor tile also leak into the water for downstairs, leaking into bottom and can store.
At toilet doorway, current can be inhaled on metope, cause wall emulsion paint to be chronically at dampness, and then cause wall decoration
Material peeling, come off, have a strong impact on impression quality and using function, or cause the mouldy change of wood floors of toilet exterior space
It is black, influence the service life of timber floor.
To avoid the water of toilet from penetrating into living room floors, it is common practice that：Set up and defend with ground joint portion in toilet
Threshold stone between life, and the mode of wet-laying is taken, applied and brushed one times with surrounding of the waterproof material along threshold stone, and in threshold stone and door
The waterproof material of the joint portion brushing certain altitude of girder construction, to prevent the water of toilet from being inhaled on metope.This way energy
Certain waterproof effect is played, but still the waterproof material that the water that there can be toilet is crossed threshold stone and brushed penetrates into parlor
Situation.
Utility model content
The purpose of this utility model is to provide a kind of toilet threshold waterproof construction, and it has the water for reducing toilet outside
The possible effect of portion space seepage.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of toilet threshold waterproof construction, including base layer structure main body and threshold stone, the basic unit in threshold stone position ties
Beam is turned over provided with fine-stone concrete sealing above structure main body, fine-stone concrete sealing turns over and is provided with waterproof coating layer one, waterproof coating layer one above beam
Top is provided with cement mortar binder course one, and the top of cement mortar binder course one is threshold stone；Basic unit's knot on the inside of threshold stone
Lightweight aggregate concrete packed layer is provided with above structure main body, fine-stone concrete screed-coat, microlith are provided with above lightweight aggregate concrete packed layer
Waterproof coating layer two is provided with above concrete screed-coat, the top of waterproof coating layer two is provided with cement mortar protective course one, and cement mortar is protected
The top of sheath one is provided with cement mortar binder course two, and the top of cement mortar binder course two is provided with accomodation ground stone material；In threshold
Cement mortar binder course three is provided with above base layer structure main body on the outside of stone, the top of cement mortar binder course three is provided with facing
Layer；Connected together between waterproof coating layer one and waterproof coating layer two by the waterproof coating layer three being vertically arranged, waterproof applies
The bed of material three turns over beam and cement mortar protective course one and the seam crossing of cement mortar binder course two, cement mortar located at fine-stone concrete sealing
The upper plane of binder course two is equal to or less than the upper plane of waterproof coating layer one.
Using above-mentioned technical proposal, waterproof coating layer one, waterproof coating layer two and waterproof coating layer three are on the inside of threshold stone
Wet area and threshold stone on the outside of arid region between form good waterstop, on the one hand, prevent moisture to waterproof apply
Two times antiseeps of the bed of material, on the other hand, beam and cement mortar protective course one and cement mortar binder course two are turned in fine-stone concrete sealing
Seam crossing waterproof coating layer three is set, prevent moisture from being inhaled upwards along wall, and be further absorbed to dry on the outside of threshold stone
In dry region.On the other hand, by setting fine-stone concrete sealing to turn over beam below toilet threshold stone, solves toilet well
Possibility of the moisture of the lower section of waterproof coating layer two to seepage on the outside of threshold stone.The one side of cement mortar protective course one is water-repellent paint
Layer two provides protective action, is on the one hand reduced by barrier effect to destruction of the moisture of seepage to waterproof coating layer two, another
Aspect is by improving structural strength come the destruction of the pressure that prevents above the ground to apply to waterproof coating layer two, so as to be advantageous to carry
High waterproof effect.
More preferably：Base layer structure main body on the inside of the base layer structure main body and threshold stone of threshold stone correspondence position
Top is provided with waterproof coating layer four, and the top of waterproof coating layer four is provided with cement mortar protective course two；Fine-stone concrete sealing turns over beam
Lower plane is flushed with the lower plane of lightweight aggregate concrete packed layer and is bonded with cement mortar protective course two.
Using above-mentioned technical proposal, the lower plane that fine-stone concrete sealing turns over the lower plane and lightweight aggregate concrete packed layer of beam is neat
Put down and be bonded with cement mortar protective course two, on the one hand lightweight aggregate concrete packed layer improves the structural strength of toilet, separately
On the one hand the depth that fine-stone concrete sealing turns over beam is increased, improves the barriering effect to steam.
More preferably：The strength grade that fine-stone concrete sealing turns over beam is C20.
Using above-mentioned technical proposal, beam is turned over using the fine-stone concrete sealing of C20 strength grades, there is excellent compression strength,
Reduce its possibility for producing microcrack or even destroying cracking, so as to improve the barriering effect to steam.
More preferably：The strength grade of lightweight aggregate concrete packed layer is LC7.5.
Using above-mentioned technical proposal, there is excellent compression strength, because the thickness of waterproof coating layer two is typically small, health
Between endothecium structure micro sedimentation and dislocation just can cause the destruction of waterproof coating layer one, and then cause the disconnected of waterproof coating layer three
Split, therefore, the compression strength of each layer advantageously reduces the possibility of the destruction of toilet endothecium structure in raising toilet, so as between
Connect raising waterproof effect.
More preferably：Reinforcing bar is provided with fine-stone concrete screed-coat, the strength grade of fine-stone concrete screed-coat is C20；Microlith
The thickness of concrete screed-coat is 40mm.
Using above-mentioned technical proposal, the setting of reinforcing bar and the optimization by thickness are advantageous to improve the intensity of screed-coat,
And then the destruction to toilet inner waterproofing dope layer two is reduced, improve water-stagnating effect.
More preferably：Waterproof coating layer one, waterproof coating layer two wrap, waterproof coating layer three and waterproof coating four divide
Bao Kuo be in polymer cement waterproof paint, water-proof acrylic acid paint any one.
Using above-mentioned technical proposal, polymer cement waterproof paint, water-proof acrylic acid paint are due to the presence of polymer, energy
One layer of fine and close protecting film is enough formed, so as to have beneficial water resistance.
More preferably：Cement mortar protective course one and cement mortar protective course two are the RS20 water that thickness is 20mm
Cement mortar.
Using above-mentioned technical proposal, cement mortar protective course one and cement mortar protective course two have good pressure resistance
Degree, so as to improve the protective action to waterproof coating layer one and waterproof coating layer four.
More preferably：The upper surface of cement mortar binder course one and the upper surface flush of cement mortar binder course three,
Fine-stone concrete sealing turns over the upper surface of beam higher than the base layer structure body upper surface on the outside of threshold stone, cement mortar binder course one, water
The thickness of cement mortar binder course two and cement mortar binder course three is respectively 8mm, 25mm and 35mm.
Using above-mentioned technical proposal, the thickness of cement mortar binder course one is reduced as much as possible, so as to reduce steam from
Cement mortar binder course one infiltrates into the possibility in indoor seasoning space.
More preferably：The top of waterproof coating layer three is provided with waterproof coating layer five, and waterproof coating layer five is from water-repellent paint
The top of layer three vertically extends upwardly to the height of accomodation ground stone material.
Using above-mentioned technical proposal, protected in the side of cement mortar binder course one by waterproof coating layer five,
More preferably:Cavity one is vertically provided with fine-stone concrete sealing reversed beam, the top of cavity one is provided with
Steel plate for sealing water, cement mortar binder course is interior to be provided with least one cavity two, and cavity two extends to threshold stone from waterproof coating layer one.
Using above-mentioned technical proposal, further obstruct what steam in toilet permeated to the dry channel on the outside of threshold stone
Path, so as to further increase waterproof effect.
In summary, the utility model has the advantages that：1st, the waterstop that is made up of waterproof coating layer and thin
Stone concrete turns over the setting of beam, forms good waterproof water-stagnating effect, prevents dry place of the steam to outside toilet in toilet from oozing
Leakage；2nd, the setting of reinforcing bar in screed-coat, the setting of cement mortar protective course improve the bulk strength of accomodation ground, so as to
The effect of protection waterproof coating layer is served, improves waterproof effect indirectly.
Brief description of the drawings
Fig. 1 is the cross-sectional view of embodiment 1；
Fig. 2 is the cross-sectional view of embodiment 2；
Fig. 3 is the cross-sectional view of embodiment 3.
In figure, 10, base layer structure main body；11st, waterproof coating layer four；12nd, cement mortar protective course two；21st, fine-stone concrete stops
Water turns over beam；22nd, waterproof coating layer one；23rd, cement mortar binder course one；24th, threshold stone；31st, lightweight aggregate concrete packed layer；
32nd, fine-stone concrete screed-coat；321st, reinforcing bar；33rd, waterproof coating layer two；34th, cement mortar protective course one；35th, cement mortar combines
Layer two；36th, accomodation ground stone material；41st, cement mortar binder course three；42nd, finish coat；5th, waterproof coating layer three；6th, waterproof applies
The bed of material five；71st, cavity one；72nd, cavity two；73rd, steel plate for sealing water.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in the scope of protection of the utility model by Patent Law.
Embodiment 1：A kind of toilet threshold waterproof construction, including base layer structure main body 10 and threshold stone 24.
The base layer structure main body 10 of the correspondence position of threshold stone 24 and the top of base layer structure main body 10 of the inner side of threshold stone 24
Provided with waterproof coating layer 4 11, the top of waterproof coating layer 4 11 is provided with cement mortar protective course 2 12, cement mortar protective course
2 12 use RS20 cement mortar of the thickness for 20mm.
Above the cement mortar protective course 2 12 of the position of threshold stone 24 beam 21, fine-stone concrete sealing are turned over provided with fine-stone concrete sealing
Turn over the top of beam 21 and be provided with waterproof coating layer 1, the top of waterproof coating layer 1 is provided with the cement mortar binder course that thickness is 8mm
One 23, the top of cement mortar binder course 1 is threshold stone 24.The strength grade that fine-stone concrete sealing turns over beam 21 is C20, so as to
Excellent structural strength is provided.
Lightweight aggregate concrete packed layer 31, lightweight aggregate are provided with above the cement mortar protective course 2 12 of the inner side of threshold stone 24
The strength grade of Concrete Filled layer 31 is LC7.5.The top of lightweight aggregate concrete packed layer 31 is provided with the microlith that thickness is 40mm
Concrete screed-coat 32, fine-stone concrete screed-coat 32 is interior to be provided with reinforcing bar 321, and the strength grade of fine-stone concrete screed-coat 32 reaches C20.Fine-stone concrete
The top of screed-coat 32 is provided with waterproof coating layer 2 33, and the top of waterproof coating layer 2 33 is provided with the cement mortar that thickness is 20mm and protected
Layer 1, cement mortar protective course 1 use RS20 cement mortar.The top of cement mortar protective course 1 is provided with thickness
25mm cement mortar binder course 2 35, the top of cement mortar binder course 2 35 are provided with accomodation ground stone material 36.
The cement mortar binder course 3 41 that thickness is 35mm is provided with above the base layer structure main body 10 in the outside of threshold stone 24,
The upper surface flush of cement mortar binder course 3 41 and cement mortar binder course 1, the top of cement mortar binder course 3 41 are set
There is finish coat 42.
Between waterproof coating layer 1 and waterproof coating layer 2 33 one is connected to by the waterproof coating layer 35 being vertically arranged
Rise, waterproof coating layer 35 turns over beam 21 and cement mortar protective course 1 and cement mortar binder course 2 35 located at fine-stone concrete sealing
Seam crossing, the upper plane of cement mortar binder course 2 35 is equal to the upper plane of waterproof coating layer 1.
Cement mortar binder course 1, cement mortar binder course 2 35 and cement mortar binder course 3 41 are by 1:3 is stiff
Property cement mortar, which pours, to be formed.Waterproof coating layer 1, waterproof coating layer 2 33, waterproof coating layer 35 and waterproof coating four
Include polymer cement respectively（JS）Any one in water-repellent paint, water-proof acrylic acid paint, waterproof coating layer 1, waterproof
The thickness of dope layer 2 33, waterproof coating layer 35 and waterproof coating four is 1.5mm.
Typical arrangement and method for construction：First one layer is sprayed in the sedimentation structure division of base layer structure main body 10 using JS water-repellent paints
Waterproof coating layer 4 11 thick 1.5mm, waterproof coating layer 4 11 is waited to pour the thick cement mortar protections of 20mm after parching thereon
Layer 2 12, formwork supporting plate after the completion of maintenance, sedimentation structure division is divided into the reserved part of installation toilet threshold stone 24 and health
Between inner space part.In toilet, the corresponding part cast fine-stone concrete sealing of threshold stone 24 turns over beam 21, and fine-stone concrete sealing turns over beam
21 upper plane is higher than plane in the base layer structure main body 10 on the outside of toilet.Form removal after the completion of maintenance, inside toilet
Space segment cast lightweight aggregate concrete packed layer 31, wiretie 321 is being placed after the completion of maintenance thereon, and pours into a mould 40mm thickness
Fine-stone concrete screed-coat 32.After the completion of maintenance along plane, fine-stone concrete sealing on fine-stone concrete screed-coat 32 turn over beam 21 side wall and
Fine-stone concrete sealing turns over two layers of JS water-repellent paint of plane brushing on beam 21, waits water-repellent paint to prevent after parching in toilet inner space
Cement mortar protective course 1 thick the upper 20mm of water paint layer 2 33,1 is used after the completion of maintenance:3 dry cement mortar
In the correspondence position paving threshold stone 24 of threshold stone 24, the interior space paving accomodation ground stone material 36 in toilet.
Embodiment 2：A kind of toilet threshold waterproof construction, the difference with embodiment 1 are, on the basis of embodiment 1,
The top of waterproof coating layer 35 is provided with waterproof coating layer 56, and waterproof coating layer 56 is from the top of waterproof coating layer 35 along vertical side
To the height for extending upwardly to accomodation ground stone material 36.
The difference of construction technology is：Process sequence according to embodiment 1, which proceeds to the thick cement mortar of cast 20mm, to be protected
After sheath 1, first using 1:3 dry cement mortar paving threshold stones 24, cement mortar binder course one is waited after the completion of paving
23 is stiff, in cement mortar binder course 1 and the inner side brushing waterproof coating layer 56 of threshold stone 24, and uses 1 immediately:3 is dry
Hydraulic cement mortar paving accomodation ground stone material 36.
Embodiment 3：A kind of toilet threshold waterproof construction, the difference with embodiment 2 are, on the basis of embodiment 2,
Cavity 1 is vertically provided with fine-stone concrete sealing reversed beam, the top of cavity 1 is provided with steel plate for sealing water 73, cement bonded sand
At least one cavity 2 72 is provided with slurry binder course, cavity 2 72 extends to threshold stone 24 from waterproof coating layer 1.
Typical arrangement and method for construction：First one layer is sprayed in the sedimentation structure division of base layer structure main body 10 using JS water-repellent paints
Waterproof coating layer 4 11 thick 1.5mm, waterproof coating layer 4 11 is waited to pour the thick cement mortar protections of 20mm after parching thereon
Layer 2 12, formwork supporting plate one after the completion of maintenance, sedimentation structure division is divided into the reserved part of installation toilet threshold stone 24 and defended
Inner space part between life.In toilet, the corresponding part of threshold stone 24 is first from formwork supporting plate two on the vertical direction of middle part, by it
Two spaces are divided into, fine-stone concrete sealing is poured into a mould respectively in two spaces and turns over beam 21, the height of template turns over beam less than sealing
Preset height.Form removal two after the completion of maintenance, a steel plate for sealing water 73 is placed on the cavity top that template two is formed, and continue to pour into a mould
Fine-stone concrete sealing turns over beam 21 to required height.Form removal one after the completion of maintenance, proceed to afterwards according to the process sequence of embodiment 1
After pouring into a mould the thick cement mortar protective courses 1 of 20mm, using 1:3 dry cement mortar paving threshold stones 24, during paving in
Between reserve many places cavity, after the completion of paving wait cement mortar binder course 1 it is stiff, afterwards according to the subsequent step of embodiment 2
Complete construction technology.
Claims (10)
1. a kind of toilet threshold waterproof construction, including base layer structure main body (10) and threshold stone (24), it is characterized in that：In threshold
Beam (21) is turned over provided with fine-stone concrete sealing above the base layer structure main body (10) of stone (24) position, the fine-stone concrete sealing turns over beam
(21) top is provided with waterproof coating layer one (22), and cement mortar binder course one is provided with above the waterproof coating layer one (22)
(23) it is, the threshold stone (24) above the cement mortar binder course one (23)；The base on the inside of threshold stone (24)
Lightweight aggregate concrete packed layer (31) is provided with above Rotating fields main body (10), is provided with above lightweight aggregate concrete packed layer (31) thin
Stone concrete screed-coat (32), fine-stone concrete screed-coat (32) top are provided with waterproof coating layer two (33), the waterproof coating layer two
(33) top is provided with cement mortar protective course one (34), and being provided with cement mortar above the cement mortar protective course one (34) combines
Two (35) of layer, cement mortar binder course two (35) top are provided with accomodation ground stone material (36)；On the outside of threshold stone (24)
The base layer structure main body (10) above be provided with cement mortar binder course three (41), the cement mortar binder course three (41)
Top is provided with finish coat (42)；It is anti-by what is be vertically arranged between the waterproof coating layer one (22) and waterproof coating layer two (33)
Water paint layer three (5) connects together, and the waterproof coating layer three (5) is turned over beam (21) located at fine-stone concrete sealing and protected with cement mortar
The seam crossing of sheath one (34) and cement mortar binder course two (35), the upper plane of the cement mortar binder course two (35) are equal to
Or the upper plane less than waterproof coating layer one (22).
2. threshold waterproof construction in toilet according to claim 1, it is characterized in that：Threshold stone (24) correspondence position
Waterproof coating layer four (11) is provided with above base layer structure main body (10) on the inside of base layer structure main body (10) and threshold stone (24),
The top of the waterproof coating layer four (11) is provided with cement mortar protective course two (12)；The fine-stone concrete sealing is turned under beam (21)
Plane is flushed with the lower plane of lightweight aggregate concrete packed layer (31) and is bonded with cement mortar protective course two (12).
3. threshold waterproof construction in toilet according to claim 1, it is characterized in that：The fine-stone concrete sealing turns over beam (21)
Strength grade is C20.
4. threshold waterproof construction in toilet according to claim 1, it is characterized in that：The lightweight aggregate concrete packed layer
(31) strength grade is LC7.5.
5. threshold waterproof construction in toilet according to claim 1, it is characterized in that：Set in the fine-stone concrete screed-coat (32)
There is reinforcing bar (321), the strength grade of the fine-stone concrete screed-coat (32) is C20；The thickness of the fine-stone concrete screed-coat (32) is
40mm。
6. threshold waterproof construction in toilet according to claim 2, it is characterized in that：The waterproof coating layer one (22), prevent
Water paint layer two (33), waterproof coating layer three (5) and waterproof coating four include polymer cement waterproof paint, acrylic acid respectively
Any one in water-repellent paint.
7. threshold waterproof construction in toilet according to claim 2, it is characterized in that：The cement mortar protective course one (34)
It is the RS20 cement mortar that thickness is 20mm with cement mortar protective course two (12).
8. threshold waterproof construction in toilet according to claim 1, it is characterized in that：The cement mortar binder course one (23)
Upper surface and cement mortar binder course three (41) upper surface flush, the upper surface that the fine-stone concrete sealing turns over beam (21) is higher than
Base layer structure main body (10) upper surface on the outside of threshold stone (24), the cement mortar binder course one (23), cement mortar combine
The thickness of two (35) of layer and cement mortar binder course three (41) is respectively 8mm, 25mm and 35mm.
9. threshold waterproof construction in toilet according to claim 1, it is characterized in that：Above the waterproof coating layer three (5)
Provided with waterproof coating layer five (6), the waterproof coating layer five (6) is vertically upward from the top of waterproof coating layer three (5)
Extend to the height of accomodation ground stone material (36).
10. threshold waterproof construction in toilet according to claim 1, it is characterized in that：The fine-stone concrete sealing reversed beam interior edge
Vertical direction is provided with cavity one (71), and the top of cavity one (71) is provided with steel plate for sealing water (73), the cement mortar binder course
Interior to be provided with least one cavity two (72), the cavity two (72) extends to threshold stone (24) from waterproof coating layer one (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721061975.0U CN207110817U (en) | 2017-08-23 | 2017-08-23 | Toilet threshold waterproof construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721061975.0U CN207110817U (en) | 2017-08-23 | 2017-08-23 | Toilet threshold waterproof construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207110817U true CN207110817U (en) | 2018-03-16 |
Family
ID=61570498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721061975.0U Expired - Fee Related CN207110817U (en) | 2017-08-23 | 2017-08-23 | Toilet threshold waterproof construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207110817U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110629893A (en) * | 2019-09-23 | 2019-12-31 | 福州合力胜装饰工程设计有限公司 | Construction method of toilet waterproof engineering |
| CN111519865A (en) * | 2020-04-30 | 2020-08-11 | 深圳市维业装饰集团股份有限公司 | Waterproof construction method for toilet base layer |
| CN113431292A (en) * | 2021-06-17 | 2021-09-24 | 深圳海外装饰工程有限公司 | Dry-method overall paving structure of fabricated ground |
| CN113550449A (en) * | 2021-06-18 | 2021-10-26 | 中国五冶集团有限公司 | Waterproof construction method for doorsill positions of washroom and dormitory |
-
2017
- 2017-08-23 CN CN201721061975.0U patent/CN207110817U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110629893A (en) * | 2019-09-23 | 2019-12-31 | 福州合力胜装饰工程设计有限公司 | Construction method of toilet waterproof engineering |
| CN110629893B (en) * | 2019-09-23 | 2021-11-02 | 福州合力胜装饰工程设计有限公司 | Construction method of toilet waterproof engineering |
| CN111519865A (en) * | 2020-04-30 | 2020-08-11 | 深圳市维业装饰集团股份有限公司 | Waterproof construction method for toilet base layer |
| CN113431292A (en) * | 2021-06-17 | 2021-09-24 | 深圳海外装饰工程有限公司 | Dry-method overall paving structure of fabricated ground |
| CN113550449A (en) * | 2021-06-18 | 2021-10-26 | 中国五冶集团有限公司 | Waterproof construction method for doorsill positions of washroom and dormitory |
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Granted publication date: 20180316 |