MX2013008165A - Prefabricated waterproof sheet of high solar reflectivity obtained by means of a finish with ceramic aluminum gravel. - Google Patents
Prefabricated waterproof sheet of high solar reflectivity obtained by means of a finish with ceramic aluminum gravel.Info
- Publication number
- MX2013008165A MX2013008165A MX2013008165A MX2013008165A MX2013008165A MX 2013008165 A MX2013008165 A MX 2013008165A MX 2013008165 A MX2013008165 A MX 2013008165A MX 2013008165 A MX2013008165 A MX 2013008165A MX 2013008165 A MX2013008165 A MX 2013008165A
- Authority
- MX
- Mexico
- Prior art keywords
- gravel
- aluminum
- mantle
- waterproofing
- paste
- Prior art date
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 30
- 238000004078 waterproofing Methods 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 239000000919 ceramic Substances 0.000 claims abstract description 4
- 239000010426 asphalt Chemical class 0.000 claims description 14
- 239000004698 Polyethylene Substances 0.000 claims description 7
- -1 polyethylene Polymers 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 238000007873 sieving Methods 0.000 claims description 2
- 239000000049 pigment Substances 0.000 claims 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 238000003801 milling Methods 0.000 abstract 1
- 239000004744 fabric Substances 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000010792 warming Methods 0.000 description 4
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical group C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000002310 reflectometry Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000000004 low energy electron diffraction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000019612 pigmentation Effects 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 1
- 238000002468 ceramisation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000036561 sun exposure Effects 0.000 description 1
- 230000029305 taxis Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Building Environments (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Finishing Walls (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention provides a prefabricated waterproof sheet with a ceramic aluminum gravel finish, which reflects the IRR of construction roofs, and the method for manufacturing the same. The method comprises milling and sifting the gravel for being mixed with an aluminum paste formed by water, sodium silicate solution, aluminum flakes. The dyed gravel is dried at a temperature of 250°C for forming a water resistant transparent film over the gravel, which includes the aluminum and the silicate arranged in a uniform manner. The gravel is cooled, stored and incorporated to the surface of the waterproofing composition in a continuous manner.
Description
PREHABRICATED HIGH PREMIUMIZING HAND
SOLAR REFLECTIVITY, OBTAINED BY MEANS OF FINISHING WITH
CERAMICATED ALUMINUM GRAVILLA
Field of the invention
The present invention relates to a waterproof prefabricated mantle based on asphalt for roofs to be used in a waterproofing system of domestic, industrial or commercial buildings. The mantle is manufactured in a continuous way and consists of a polyester or fiberglass nonwoven fabric, saturated with asphalt modified with SBS (Styrene-Butadiene-Styrene), APP (Polyatropylene Atactic) or TPO (Olefin Thermo Plastic) and with a Finished with gravel coated in ceramized aluminum with high reflectivity to ultraviolet and infra-red rays.
BACKGROUND OF THE INVENTION
At present, it is about reducing the problem of the warming of the earth by emanation of gases into the atmosphere and the absorption of infra-red rays (RIF) from the sun.
One of the main problems created is "the overheating of the cities, due to the absorption of
RIR by streets and buildings by absorption of these producing heating, due to its constitution.
To help solve this problem and because a high percentage of the area of a city is the roofs of houses and buildings, a prefabricated waterproofing mantle has been developed, with gravel coated with aluminum, which reflects more than 95% of the RIR incidents in ceilings, reducing the heat absorbed and therefore generating a reduction in the heating of cities and the use of electrical energy by air conditioning equipment.
The increasing consumption of energy to cool buildings, together with problems of global and regional warming of the environment, has led to a transformation in contemporary technologies for the creation of cold roofs.
It is necessary to manufacture products with more reflective surfaces so that the roof better reflects the solar radiation and thus reduce the amount of energy needed to cool the buildings.
'! -'
There are several private institutions in the United States, USGBC "US Green Building Council" LEED, EPA "Environmental Protection Agency" Energy Star and "Cool Roof Rating Council"
CRRC that promote, among other issues, the reduction of global warming, through guidelines that the Government of the United States rewards with reduction in property taxes for buildings with low environmental impact.
At present, it is about reducing the problem of the warming of the earth by emanation of gases to the atmosphere and the absorption of RIR rays from the sun.
To help solve this problem and because a high percentage of the area of a city is the roofs of houses and buildings, a prefabricated waterproofing mantle has been developed, with gravel coated with aluminum, which reflects more than 90% of the RIR incidents in roofs, reducing the heat absorbed and therefore generating a reduction in the heating of the cities and the use of electrical energy by air conditioning equipment.
At present, prefabricated waterproofing mantles are used to prevent the passage of water through roofs. These are finished with a gravel of various colors. These reflect the RIRs in a very low percentage, allowing the ceilings to warm up. ..
A new pre-fabricated waterproofing mantle has been developed, which also has the property of insulation
thermal, since it incorporates small air cells in its constitution.
It is the object of the present invention to present a mantle for waterproofing, which reduces the thermal load (heat island) caused by the absorption of infra-red rays, on the roofs of cities, in order to reduce greenhouse gases, remembering that almost 30% of the roofs form the reflective area in a city. Unfortunately, 40% are paved streets that are black (the color that most absorbs heat).
The use of this waterproofing allows 1 credit according to USGBC-LEED for a Solar Reflection Index (SRI) greater than 78. "SS Credit 7.2: Heat Island Effect: Roof"
The object of the present invention, to reduce the effect of Heat Island (thermal gradient), to reduce the impact on the microclimate of the human and animal habitat.
It is also an object of the present invention to use waterproofers having an Index of Solar Reflectivity (IRS) equal to or greater than 78 in at least 75% of the waterproofing area.
The material of the present invention is novel in the absence of a prefabricated waterproofing mantle with these characteristics on the market.
BRIEF DESCRIPTION OF THE INVENTION
In a first aspect, the present invention provides a prefabricated waterproofing mantle that reflects the infrared rays and that is also insulating. The membrane is made of modified asphalt, a reinforcing membrane, a film of meltable polyethylene and gravel coated with ceramized aluminum.
Its composition per m2 is as follows:
Brief Description of the Figures
Figure 1 shows the manufacturing process of the prefabricated waterproofing mantle of the invention. The gravel
it is fed to a continuous mixer (3) by means of a hopper (1) equipped with a butterfly valve, which controls the flow of this. Immediately the aluminum paste is added to the gravel by means of a dosing pump (2) and both are mixed along the mixer. The mixture produced is introduced continuously into a rotary dryer (4), which is heated by means of natural gas (5), the combustion gases are expelled by the chimney (6). The pigmented gravel is stored and cooled in silos (7). The manufacture of the prefabricated waterproofing mantle begins at point (8), which is composed of the reinforcing mesh of the waterproofing mantle, which continuously feeds a tank with modified asphalt (9), saturating the fabric with asphalt. At the exit of the asphalt tank, there are 2 rollers (10) that control the thickness of the saturated fabric. When the asphalt of the waterproofing mantle is still warm, the aluminum gravel ceramized in (7) is added to its upper face and the fusible polyethylene film (11) is adhered to the lower face. The prefabricated waterproofing mantle is subsequently passed through two rollers (12), whose function is to compress the gravel onto the fabric and adhere the polyethylene film. The waterproofing mantle thus formed is rolled in (13).
Figure 2 shows the prefabricated waterproofing mantle of the invention, made of asphalt modified with SBS, APP or TPO (b), reinforcing membrane of non-woven polyester fiber / glass fiber (c), meltable polyethylene film (d) ) and gravel coated with ceramized aluminum (a).
Detailed description of the invention
Definitions
In order to facilitate the understanding of the invention, some terms are defined below.
The term "gravel" is defined as granular particles of stone material obtained by crushing rock whose elements pass the No.8 mesh and are retained in No. 10 mesh.
The term "aluminum paste" is defined as a composition shown in the following table 2:;
The prefabricated waterproofing mantle coated with ceramized aluminum gravel of the present invention is obtained by the method comprising the following steps:
1. - Grinding and sieving of gravel to a mesh number
2. - Preparation of aluminum paste.
The paste is made using a "cowles" type mixer, in which the water is placed first, the sodium silicate is added, stirring is started and finally the aluminum is added and the mixture is stirred for 20 minutes.
3. - Mixing gravel with aluminum paste ...
The gravel is fed to a continuous mixer by means of a hopper conditioned with a butterfly valve, which controls the flow of this.
Immediately the aluminum paste is added to the gravel by means of a metering pump and both are mixed along the mixer. Individual gravel particles coated with the paste are obtained. The percentage of aluminum paste is between 4 to 15% of the total.
The pigmentation depends on the expenditure on the flow of the aluminum paste and the gravel and therefore its weight ratio, are controlled in the continuous mixer.
The pigmentation has been measured with a sample of about 500 grams that is exposed to an infrared lamp at 30 cm. for 1 hour and its temperature is measured by digital thermometer. The temperature must not exceed 42 ° C.
4. - Drying and Ceramization of gravel.
Ceramicized pigmented gravel is introduced in a rotary dryer at a temperature of 280 ° C to 350 ° C to melt the sodium silicate and form an insoluble transparent film on the gravel in which they are found;; ::, it aluminum and sodium silicate evenly distributed.
The sodium silicate is crystallized in the furnace by loss of water forming an insoluble compound similar to glass. How aluminum "leafing" is used (self-leveling), when the paste is in a liquid state, this aluminum is evenly distributed on the surface. The paste is subjected to covering power on black and white chart. By previous experimentation it was determined what is the optimum retention time of the pigmented gravel in the mixer.
5. - Cooling and storage of pigmented gravel.
Ceramic pigmented gravel loses water and forms a shiny, hard and insoluble ceramic aluminum film on the gravel.
Ceramicized pigmented gravel is stored and cooled in silos that are fed by compressed air.
In the present invention, it is desirable to impart to the gravel properties such as gloss, excellent color and resistance to atmospheric agents. This ceramized pigmented gravel is used as a final layer in the preparation of pre-fabricated waterproofing sheets described below. I
Preparation of the prefabricated waterproofing mantle.
The process begins at point (8) of figure 1, which is composed of the reinforcement mesh of the mantle
waterproofing, which continuously feeds a tank with modified asphalt, saturating the fabric with asphalt.
At the exit of the asphalt tank, there are 2 rollers that control the thickness of the saturated fabric.
The process continues and the fabric whose asphalt is still hot, is added in its upper face the gravillá pigmented ceramizada and on the underside of the film adheres to the meltable polyethylene.
The fabric is subsequently passed through two rollers, whose function is to compress the gravel on the fabric and adhere the polyethylene film.
The waterproofing thus formed is rolled up.
In the following table (Table 3) that was obtained in Mexico City, the effectiveness of the waterproofing with ceramized aluminum gravel finish is demonstrated, to reduce the temperature in sun exposure at different times of day, compared with other prefabricated waterproofing mantles, :
Table 3
It is noted that in relation to this date, the best process known to the applicant to carry out the aforementioned invention is that which is clear from the present description of the invention.
Claims (3)
1. A prefabricated waterproofing mantle characterized in that it comprises the following layers: gravel coated with ceramized aluminum (a); asphalt modified with SBS, APP or TPO (b); reinforcing membrane of non-woven polyester fiber / glass fiber (c); modified asphalt with SBS, APP or TPO (b) meltable polyethylene film (d).
2. A method for manufacturing the prefabricated waterproofing mantle according to claim 1, characterized in that it comprises: a) Grinding and sieving the gravel to a mesh number eleven; b) Preparation of the aluminum paste; c) Mix the gravel with the aluminum paste to obtain individual gravel particles coated with the paste in a percentage of aluminum paste from 4 to 15% of the total d) Pigment and Ceramic e) Dry the gravel f) Cool
3. The method according to claim 2, characterized in that water, sodium silicate and finally aluminum are mixed and the mixture is stirred for 20 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MX2013008165A MX352170B (en) | 2013-07-12 | 2013-07-12 | Prefabricated waterproof sheet of high solar reflectivity obtained by means of a finish with ceramic aluminum gravel. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MX2013008165A MX352170B (en) | 2013-07-12 | 2013-07-12 | Prefabricated waterproof sheet of high solar reflectivity obtained by means of a finish with ceramic aluminum gravel. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MX2013008165A true MX2013008165A (en) | 2015-01-12 |
| MX352170B MX352170B (en) | 2017-11-13 |
Family
ID=52833260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2013008165A MX352170B (en) | 2013-07-12 | 2013-07-12 | Prefabricated waterproof sheet of high solar reflectivity obtained by means of a finish with ceramic aluminum gravel. |
Country Status (1)
| Country | Link |
|---|---|
| MX (1) | MX352170B (en) |
-
2013
- 2013-07-12 MX MX2013008165A patent/MX352170B/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| MX352170B (en) | 2017-11-13 |
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| Date | Code | Title | Description |
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| FG | Grant or registration |