CN101994368A - Waterproof layer for flat roof - Google Patents
Waterproof layer for flat roof Download PDFInfo
- Publication number
- CN101994368A CN101994368A CN2009101629819A CN200910162981A CN101994368A CN 101994368 A CN101994368 A CN 101994368A CN 2009101629819 A CN2009101629819 A CN 2009101629819A CN 200910162981 A CN200910162981 A CN 200910162981A CN 101994368 A CN101994368 A CN 101994368A
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- CN
- China
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- waterproof layer
- insulation layer
- roof waterproof
- plane
- pitch
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Abstract
The invention discloses a waterproof layer for a flat roof, which comprises a high-viscosity waterproof layer coated on a joint of roof plates, wherein the waterproof layer is emulsified asphalt; and an insulating layer is spread on the outer surface of the waterproof layer. The insulating layer can prevent overlarge temperature change of the waterproof layer, so that the waterproof layer has better durability. Besides, the emulsified asphalt has better normal-temperature fluidity and can fully infiltrate the joint between the roof plates so as to improve t the anti-leakage effect of the roof.
Description
Technical field
The invention belongs to the realm of building construction, relate in particular to the plane roof waterproof layer in the realm of building construction.
Background technology
Dwelling construction has become China's new consumption hotspot and new growth engines, and housing industry is just becoming the important industry of national economy.China's the enforcement period of the ninth five-year plan cities and towns planning of houses is finished 1,200,000,000 square metres, the average year 2.4 hundred million flat myriametres of being completed; 27.4 hundred million square metres of typical apartment buildings, rural area are completed 600,000,000 square metres every year on average.
The roofing of dwelling house can have the branch of plane roofing and arch covering with regard to its shape, for arch covering, its surface is coated with tile more, its retaining poor performance in addition, and its leak resistance generally can both be guaranteed.The formation of plane roofing is mainly formed by polylith roofing plate contiguous concatenation, and its roof leakage applies by means of the seam crossing between the roofing plate mainly that full-bodied plain asphalt realizes.Because the plane roofing is directly to expose in the external world, pitch can crack performance occur because of aging after the long period under the corrosion function in the external world, and rainwater can penetrate into indoor from these cracks.Adopt the method for this coating plain asphalt can not satisfy the permanent leakproof requirement of plane roofing fully, often need the waterproofing course of this roofing is keeped in repair.And before asphalt-coating, need make it to become flowable liquid state, coat operations inconvenience by the method for heating.
Summary of the invention
The technical issues that need to address of the present invention: a kind of plane roof waterproof layer is provided, and it can make the plane roofing have longer leak resistance.
The technical scheme that addresses the above problem: a kind of plane roof waterproof layer, comprise the high viscosity waterproofing course that is used to be coated in roofing plate seam crossing, described waterproofing course is a mulseal, is equipped with insulation layer on the external surface of waterproofing course.Described mulseal is through mechanisms such as high speed centrifugation, shearing, impacts, makes it become the particulate of particle diameter 0.1 μ m to 5 μ m, and is distributed in the aqueous medium that contains asphalt emulsifier.In the normality, the surface tension difference of pitch and water is very big, can be not miscible mutually under normal temperature or high temperature.Now because the asphalt emulsifier that added can orientation be adsorbed on the pitch microparticle surfaces, thereby reduced the interfacial tension of water and pitch, made the pitch particulate in water, form stable dispersion, Here it is oil-in-water emulsion.This dispersion is dark brown, and pitch is decentralized photo, and water is continuous phase, has good flowability under the normal temperature.Mulseal is water " dilution " pitch in a sense, thereby has improved the flowability of pitch, is convenient to pitch and penetrates in the slit between the roofing plate.
In this plane roof waterproof layer, described insulation layer is cement, sand mixture, is densely covered with foam beads in cement, sand mixture.Foam beads low price, and good heat insulating make pitch can not stand too big difference variation, are convenient to the physical aspect of pitch and stablizing of chemical property.
In this plane roof waterproof layer, be doped with fiber in the described insulation layer.The fiber that is provided with can increase the adhesive strength of insulation layer, has improved the durability of insulation layer.
In this plane roof waterproof layer, described fiber is livestock hair or glass fiber.These two kinds of fibers have comparatively firm adhesive strength, and the facility of drawing materials, low price.
In this plane roof waterproof layer, described insulation layer thickness is that 1cm is to 5cm.This thickness is enough to effectively protection as the pitch of waterproofing course, and can not bring too much heavy burden to roofing.
In this plane roof waterproof layer, be equipped with the asphalt felt that has the aluminium film on the external surface of insulation layer, described aluminium film is positioned at the outside.Aluminium film on the asphalt felt can flash back the sunlight effectively, helps reducing the indoor temperature of top layer resident family.Asphalt felt generally is that the mode by flame baking is laid on the described insulation layer.
Compared with prior art, beneficial effect of the present invention is:
Pitch after treatment has good flowability, and when this pitch of place, the slit between roofing plate coating, pitch can be easy to penetrate into place, described slit.Before asphalt-coating, do not need to utilize the method for heating to make pitch become the state of thawing, made things convenient for construction to roof waterproof layer, and pollutant atmosphere not, be beneficial to environmental protection.Surface at pitch is provided with insulation layer, avoids pitch to expose in the external world, and pitch prill is difficult for aging, and makes pitch can not stand too big difference variation, and pitch has higher application life.Be provided with insulation layer, also can effectively intercept the interchange of heat between the roofing and the external world, help the maintenance of the temperature difference between top layer resident family indoor air temperature and the outside air temperature, improved the comfort level that top layer resident family lives.
Description of drawings
Fig. 1 is that this plane roof waterproof layer is laid on the longitudinal sectional view on the roofing.
The specific embodiment
See in the accompanying drawing that plane of the present invention roof waterproof layer comprises the waterproofing course 5 that is coated on place, slit between the roofing plate 1 of plane, this waterproofing course 5 is a mulseal, is equipped with insulation layer 2 on the external surface of waterproofing course 5, the whole roofing of insulation layer 2 tilings.
Floating asphalt-ing is that common pitch is rotated stirring at a high speed and forms the particulate of particle diameter 0.1 μ m to 5 μ m through the centrifugal blender tool earlier, again the pitch through this processing is added to the water, weight proportion between pitch and the water is between 1: 1 to 3: 1, mixture to both stirs, in the process that stirs, add emulsifier, the main chemical compositions of this emulsifier is octadecyl trimethyl ammonium chloride or cetyl ammonium bromide, these emulsifier can orientation be adsorbed on the pitch microparticle surfaces, thereby reduced the interfacial tension of water and pitch, make the pitch particulate can in water, form stable dispersion.The addition of emulsifier decide on situation mixed mutually between pitch and the water, after treating to form the liquid of high viscosity, good fluidity between pitch and the water, can stop to add emulsifier, and stops to stir, and sealing is standby after preserving.
Waterproofing course 5 mainly concentrates on the place, slit between the roofing plate, waterproofing course 5 applies along the trend in this slit, also need as last the oral area in this slit is carried out the chamfering operation in coating, so that mulseal fully penetrates in the slit, to guarantee the effect of leakproof.
The formation of insulation layer 2 comprises the mixture of cement and sand, is densely covered with plastic foam particle in cement and sand mixture, and between the 6mm, foam beads shared volume in insulation layer 2 is between 60% to 80% to the particle diameter of foam beads at 1mm.Owing to be densely covered with foam beads in the insulation layer 2, cause the internal construction of insulation layer 2 loose relatively, the adhesive strength of insulation layer 2 is relatively low.In insulation layer 2, also mix some fibre, these fibers can be selected vegetative fiber (as crudefiber crop), livestock hair (as ox hair, pig hair, wool), chemical fibre (as glass fiber, nylon) for use, the length of these fibers does not have special requirement, generally no longer than 10cm, it is a small amount of that their addition should be, in the insulation layer that is shaped, the shared volume of these fibers generally is no more than 1%.Above-mentioned foam beads, fiber add in work progress, foam beads, fiber, cement, sand, water are mixed in together, for reduce the damage to foam beads as far as possible, these mixtures need slowly stir, and are laid on the whole roofing through smearing again.The thickness of insulation layer 2 generally is prepared to 1cm between the 5cm.
Also be equipped with one deck asphalt felt on the external surface of insulation layer 2, asphalt felt is bonded together by pitch base material 3 and aluminium film 4 and constitutes.Asphalt felt is fitted on the surface of insulation layer 2 pitch base material 3 by the method for flame baking, and aluminium film 4 is towards the external world.
Plane of the present invention roof waterproof layer, good leak-proof effect, insulation layer 2 can be in the comparatively stable enclosed environment waterproofing course 5, and waterproofing course 5 is difficult for aging, and its water resistance can access comparatively lasting performance.And, make that the interchange of heat between the plane roofing and the external world is few because of the laying of insulation layer 2 and asphalt felt, help the indoor comfort level of top layer resident family.
Claims (7)
1. a plane roof waterproof layer comprises the high viscosity waterproofing course that is used to be coated in roofing plate seam crossing, it is characterized in that, described waterproofing course is a mulseal, is equipped with insulation layer on the external surface of waterproofing course.
2. plane according to claim 1 roof waterproof layer is characterized in that, described insulation layer is cement, sand mixture, is densely covered with foam beads in cement, sand mixture.
3. plane according to claim 2 roof waterproof layer is characterized in that, is doped with fiber in the described insulation layer.
4. plane according to claim 3 roof waterproof layer is characterized in that, described fiber is the livestock hair.
5. plane according to claim 3 roof waterproof layer is characterized in that, described fiber is a glass fiber.
6. according to claim 1,2,3,4 or 5 described plane roof waterproof layers, it is characterized in that described insulation layer thickness is that 1cm is to 5cm.
7. according to claim 1,2,3,4 or 5 described plane roof waterproof layers, it is characterized in that, be equipped with the asphalt felt that has the aluminium film on the external surface of insulation layer, described aluminium film is positioned at the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101629819A CN101994368A (en) | 2009-08-21 | 2009-08-21 | Waterproof layer for flat roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101629819A CN101994368A (en) | 2009-08-21 | 2009-08-21 | Waterproof layer for flat roof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101994368A true CN101994368A (en) | 2011-03-30 |
Family
ID=43785069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101629819A Pending CN101994368A (en) | 2009-08-21 | 2009-08-21 | Waterproof layer for flat roof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101994368A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807080A (en) * | 2017-10-12 | 2018-03-16 | 乔欢欢 | A kind of building wall seam repairs the impermeable detection means of pitch and its detection method |
-
2009
- 2009-08-21 CN CN2009101629819A patent/CN101994368A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807080A (en) * | 2017-10-12 | 2018-03-16 | 乔欢欢 | A kind of building wall seam repairs the impermeable detection means of pitch and its detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110330 |