CN111574864B - Asphalt-based coating for pre-paved waterproof system - Google Patents
Asphalt-based coating for pre-paved waterproof system Download PDFInfo
- Publication number
- CN111574864B CN111574864B CN202010360288.9A CN202010360288A CN111574864B CN 111574864 B CN111574864 B CN 111574864B CN 202010360288 A CN202010360288 A CN 202010360288A CN 111574864 B CN111574864 B CN 111574864B
- Authority
- CN
- China
- Prior art keywords
- coating
- protective layer
- weight
- sand
- cement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/06—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement
- C09D1/08—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement with organic additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D125/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/08—Copolymers of styrene
- C09D125/14—Copolymers of styrene with unsaturated esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/665—Sheets or foils impervious to water and water vapor
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to a coating for an asphalt-based pre-paved waterproof system, which comprises a protective layer and a functional layer from bottom to top, wherein the protective layer comprises 20-40 parts by weight of high polymer emulsion and 10-80 parts by weight of cement component, the functional layer comprises 20-40 parts by weight of high polymer emulsion, 30-60 parts by weight of cement component, 10-20 parts by weight of sand and 0.01-0.1 part by weight of functional auxiliary agent, the high polymer emulsion is plasticizing styrene-acrylic emulsion, and the cement component is one or a mixture of ordinary portland cement with the strength of 42.5 and white cement with the strength of 52.5. According to the invention, the protective layer is optimized and the functional layer is added, so that the bonding capacity of the anti-adhesion coating can be remarkably improved, and the weight ratio of each component in the protective layer and the functional layer is tested by practice, so that the obtained anti-adhesion coating is tightly bonded with post-cast concrete and is not easy to fall off.
Description
Technical Field
The invention belongs to the technical field of waterproofing, and particularly relates to a coating for an asphalt-based pre-paved waterproofing system.
Background
The adhesive layer of the common polymer waterproof coiled material in the existing building waterproof system has low peel strength with post-cast concrete, and an independent protective layer must be added on the adhesive layer, so that the effects of facilitating construction and enhancing the bonding strength with the concrete are achieved. At present, mineral granules or a single polymer coating is generally used as a protective layer in a commonly used pre-laid waterproof system, and after the mineral granules are adhered to an adhesive layer, water attacks an adhesive interface due to strong water absorption of the mineral granules, so that the adhesive strength is reduced; and the single polymer coating is difficult to balance the bonding capability with the lower adhesive layer and the bonding capability with the upper post-cast concrete.
CN106833222A discloses an anti-adhesion weather-resistant coating, an adhesive layer for adhering a water stop and concrete, and a composite waterproof system, wherein the coating comprises the following raw materials in formula: 55-70 parts of heavy calcium carbonate, 1-5 parts of talcum powder, 1-5 parts of titanium dioxide and 210-350 parts of water-based emulsion, wherein the water-based emulsion contains a functional group capable of being coordinated and complexed with a basic group in concrete, so that the adhesive force of the anti-adhesion weather-resistant coating and the concrete is enhanced. The anti-adhesion coating is arranged on the pressure-sensitive adhesive layer to form an adhesive layer, the adhesive layer forms an integrally continuous and microcosmic three-dimensional porous structure, slurry formed by the later-poured concrete is combined with the microcosmic three-dimensional porous structure in the adhesive layer to form mechanical occlusion in the curing process of the later-poured concrete and the adhesive layer, and the adhesive layer and the concrete are tightly adhered and are not easy to fall off. However, in the technical scheme, the waterproof layer and the anti-sticking coating layer adopt the pressure-sensitive adhesive, the commonly used pressure-sensitive adhesive has the defect of poor aging resistance, and the bonding capability with post-cast concrete also has a space for further improvement.
CN108587362A discloses an isolation coating for a pre-paved wet-paved waterproof coiled material and a preparation method thereof, wherein the isolation coating for the pre-paved wet-paved waterproof coiled material comprises the following components in percentage by mass: 10-40% of modified acrylate copolymer emulsion; 10% -40% of a crystallization master batch; 5 to 20 percent of pigment and filler; 0.1 to 1 percent of dispersant; 0.1 to 1 percent of thickening agent; 0.1 to 0.5 percent of defoaming agent; 0.1 to 0.5 percent of flatting agent; 10 to 40 percent of water. The technical scheme is that the isolation coating for the pre-paved wet-paved waterproof coiled material can be used for isolation protection of a self-adhesive layer of the pre-paved anti-adhesive waterproof coiled material and also can be used for isolation protection of a self-adhesive layer of the wet-paved waterproof coiled material, is a water-based coating, is environment-friendly and safe in production and use processes, and further solves the problem that the bonding strength is reduced.
In view of the foregoing, there is still a lack in the prior art of a coating for asphalt-based pre-applied waterproofing systems.
Disclosure of Invention
The invention aims to improve the bonding capability of a protective layer in the existing waterproof pre-paving system, and adopts the following technical scheme.
The coating for the asphalt-based pre-paved waterproof system is characterized by comprising a protective layer and a functional layer from bottom to top,
the protective layer comprises, by weight, 20-40 parts of a polymer emulsion and 10-80 parts of a cement component, and the functional layer comprises, by weight, 20-40 parts of the polymer emulsion, 30-60 parts of the cement component, 10-20 parts of sand and 0.01-0.1 part of a functional additive, wherein the polymer emulsion is a plasticizing styrene-acrylic emulsion, and the cement component is one or a mixture of two of ordinary portland cement with the strength of 42.5 and white cement with the strength of 52.5.
At present, mineral granules or a single polymer coating is generally used as a protective layer in a commonly used pre-laid waterproof system, and after the mineral granules are adhered to an adhesive layer, water attacks an adhesive interface due to strong water absorption of the mineral granules, so that the adhesive strength is reduced; and the single polymer coating is difficult to balance the bonding capability with the lower adhesive layer and the bonding capability with the upper post-cast concrete. In order to solve the problem, the invention optimizes a commonly used protective layer into a protective layer and a functional layer, and optimizes a single high-molecular coating component of the protective layer into a mixture of high-molecular emulsion and a cement component. The high polymer emulsion selected by the invention is the plasticizing styrene-acrylic emulsion, has the advantages of good weather resistance, excellent ductility, uniform mixing with cement-based materials and the like, and can form a compact protective layer on the surface of the adhesive layer of the high polymer waterproof coiled material to isolate the influence of external moisture on the adhesive.
The functional layer coating is prepared by compounding high-molecular emulsion with cement sand, so that the functional layer coating can be compounded with the protective layer with the same material, has strong bonding capability, can form a rough surface, can realize mutual bonding with post-cast concrete, and has good and lasting effect.
Preferably, the weight ratio of the high molecular emulsion to the cement component in the protective layer is 1: (0.5-2).
By optimizing the weight ratio of the polymer emulsion to the cement component, a compact layer can be formed in the protective layer, so that the migration of oil and the like contained in the adhesive layer of the polymer waterproof coiled material can be effectively prevented, the permeation of external moisture is blocked, and the water resistance of the coating is improved.
Preferably, the weight ratio among the high molecular emulsion, the cement component and the graded sand in the functional layer is (1-2.5): (1.5-4): (0.5-2).
Preferably, the cement component is a mixture of Portland cement of strength 42.5 and white cement of strength 52.5 in a weight ratio of 1:1.
Preferably, the sand is graded sand, and comprises 30-mesh sand, 60-mesh sand, 120-mesh sand and 200-mesh sand, and the weight ratio of the 30-mesh sand to the 60-mesh sand to the 120-mesh sand to the 200-mesh sand is 2: 5:2: 1.
the graded sand is beneficial to adjusting the construction consistency and forming the roughness of the surface layer, and can effectively improve the construction performance and the bonding strength with post-cast concrete.
Preferably, the functional auxiliary agent comprises an ultraviolet absorber, a cement moisture-proof agent and an accelerator.
Preferably, the ultraviolet absorbent is one or more of UV-O, UV-P and UV-9, and the weight percentage of the ultraviolet absorbent based on the weight of the high polymer emulsion is 0.05-0.1%.
The influence of ultraviolet rays on the coating can be effectively isolated by adding the ultraviolet ray absorber. The invention optimizes the weight percentage of the ultraviolet absorbent based on the high polymer emulsion, and when the weight percentage based on the high polymer emulsion is 0.05-0.1%, the weather resistance of the coating is obviously improved, and the peel strength of the coating and post-cast concrete under ultraviolet treatment is greatly improved.
Preferably, the preparation method of the coating for the asphalt-based pre-paved waterproof system comprises the following steps:
(1) preparing a protective layer, and uniformly mixing the high-molecular emulsion and the cement component according to a certain proportion;
(2) coating the protective layer paint on a three-oil two-cloth system in a blade coating or roll coating manner, and curing;
(3) preparing a functional layer, and uniformly mixing the high-molecular emulsion, the cement component, the graded sand and the functional auxiliary agent according to a certain proportion;
(4) and directly blade-coating or roll-coating the functional layer coating on the protective layer.
The invention has the following beneficial effects:
1. the protective layer and the functional layer of the invention take the high molecular emulsion and the cement component as the base materials, ensure the same material composition and have good integrity;
2. according to the invention, the compactness of the protective layer is ensured by optimizing the weight ratio of the high molecular emulsion to the cement component in the protective layer component, and the influence of external moisture on the bonding performance is isolated;
3. the invention uses the cement-based sand-containing coating as the upper surface functional layer, optimizes the weight ratio of the high molecular emulsion, the cement component and the graded sand, realizes the bonding with the post-cast concrete body, has reliable bonding effect, and has the peel strength with the post-cast concrete of more than 4.5N/mm.
Detailed Description
The following further illustrates embodiments of the invention:
in this example, the plasticizing styrene-acrylic emulsion was purchased from Shanghai Baolijia chemical Co., Ltd, and the product model was BLJ-6179. In the functional auxiliary agent, the ultraviolet absorbent is UV-O, the cement moisture-proof agent is wood asphalt, the coagulant is calcium formate, and the weight ratio of the UV-O, the wood asphalt and the calcium formate is 3:1: 1.
Inventive example 1
The coating for the asphalt-based pre-paved waterproof system is prepared by the following method:
(1) preparing a protective layer, coating a protective layer paint on a three-oil two-cloth system in a scraping or rolling way, and curing the protective layer paint;
(2) and preparing a functional layer, and directly blade-coating or roll-coating the functional layer paint on the protective layer to obtain paint A1.
The protective layer in the step (1) is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion and 10kg of ordinary portland cement with the strength of 42.5; the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component is 2:1.
in the step (2), the functional layer is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion, 30kg of common Portland cement with the strength of 42.5, 2kg of 30-mesh sand, 5kg of 60-mesh sand, 2kg of 120-mesh sand, 1kg of 200-mesh sand and 10g of functional additive; wherein the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component to the graded sand is 1:1.5: 0.5.
Inventive example 2
The difference between this example and inventive example 1 is that the ratio of the components of the protective layer is different, as described below.
The coating for the asphalt-based pre-paved waterproof system is prepared by the following method:
(1) preparing a protective layer, coating a protective layer paint on a three-oil two-cloth system in a scraping or rolling way, and curing the protective layer paint;
(2) and preparing a functional layer, and directly blade-coating or roll-coating the functional layer paint on the protective layer to obtain paint A2.
In the step (1), the protective layer is prepared by stirring and mixing the following components by weight, 40kg of plasticizing styrene-acrylic emulsion and 80kg of common Portland cement with the strength of 42.5, wherein the weight ratio of the plasticizing styrene-acrylic emulsion to the cement components is 1: 2.
in the step (2), the functional layer is prepared by stirring and mixing 40kg of plasticizing styrene-acrylic emulsion, 60kg of common Portland cement with the strength of 42.5, 4kg of 30-mesh sand, 10kg of 60-mesh sand, 4kg of 120-mesh sand, 2kg of 200-mesh sand and 100g of functional additive; wherein the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component to the graded sand is 1:1.5: 0.5.
Inventive example 3
The difference between this example and inventive example 1 is that the ratio of the components of the protective layer is different, as described below.
The coating for the asphalt-based pre-paved waterproof system is prepared by the following method:
(1) preparing a protective layer, coating a protective layer paint on a three-oil two-cloth system in a scraping or rolling way, and curing the protective layer paint;
(2) and preparing a functional layer, and directly blade-coating or roll-coating the functional layer paint on the protective layer to obtain paint A3.
The protective layer in the step (1) is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion and 20kg of ordinary portland cement with the strength of 42.5; the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component is 1:1.
in the step (2), the functional layer is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion, 30kg of common Portland cement with the strength of 42.5, 2kg of 30-mesh sand, 5kg of 60-mesh sand, 2kg of 120-mesh sand, 1kg of 200-mesh sand and 10g of functional additive; wherein the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component to the graded sand is 1:1.5: 0.5.
Inventive example 4
The difference between this example and inventive example 1 is that the ratio of the functional layer components is different, as described below.
The coating for the asphalt-based pre-paved waterproof system is prepared by the following method:
(1) preparing a protective layer, coating a protective layer paint on a three-oil two-cloth system in a scraping or rolling way, and curing the protective layer paint;
(2) and preparing a functional layer, and directly blade-coating or roll-coating the functional layer paint on the protective layer to obtain paint A4.
The protective layer in the step (1) is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion and 10kg of ordinary portland cement with the strength of 42.5; the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component is 2:1.
in the step (2), the functional layer is prepared by stirring and mixing the following components by weight, 25kg of plasticizing styrene-acrylic emulsion, 40kg of common Portland cement with the strength of 42.5, 4kg of 30-mesh sand, 10kg of 60-mesh sand, 4kg of 120-mesh sand, 2kg of 200-mesh sand and 10g of functional additive; wherein the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component to the graded sand is 2.5:4: 2.
Inventive example 5
The difference between this example and inventive example 1 is that the ratio of the functional layer components is different, as described below.
The coating for the asphalt-based pre-paved waterproof system is prepared by the following method:
(1) preparing a protective layer, coating a protective layer paint on a three-oil two-cloth system in a scraping or rolling way, and curing the protective layer paint;
(2) and preparing a functional layer, and directly blade-coating or roll-coating the functional layer paint on the protective layer to obtain paint A5.
The protective layer in the step (1) is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion and 10kg of ordinary portland cement with the strength of 42.5; the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component is 2:1.
in the step (2), the functional layer is prepared by stirring and mixing the following components by weight, 30kg of plasticizing styrene-acrylic emulsion, 30kg of common Portland cement with the strength of 42.5, 3kg of 30-mesh sand, 7.5kg of 60-mesh sand, 3kg of 120-mesh sand, 1.5kg of 200-mesh sand and 10g of functional additive; wherein the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component to the graded sand is 2:2: 1.
Inventive example 6
The difference between this example and inventive example 1 is that the ratio of the functional layer components is different, as described below.
The coating for the asphalt-based pre-paved waterproof system is prepared by the following method:
(1) preparing a protective layer, coating a protective layer paint on a three-oil two-cloth system in a scraping or rolling way, and curing the protective layer paint;
(2) and preparing a functional layer, and directly blade-coating or roll-coating the functional layer paint on the protective layer to obtain paint A6.
The protective layer in the step (1) is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion and 10kg of ordinary portland cement with the strength of 42.5; the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component is 2:1.
in the step (2), the functional layer is prepared by stirring and mixing the following components by weight, 30kg of plasticizing styrene-acrylic emulsion, 30kg of common Portland cement with the strength of 42.5, 3kg of 30-mesh sand, 7.5kg of 60-mesh sand, 3kg of 120-mesh sand, 1.5kg of 200-mesh sand and 10g of functional additive; wherein the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component to the graded sand is 1:2: 1.
Inventive example 7
The difference between this example and inventive example 1 is that the ratio of the functional layer components is different, as described below.
The coating for the asphalt-based pre-paved waterproof system is prepared by the following method:
(1) preparing a protective layer, coating a protective layer paint on a three-oil two-cloth system in a scraping or rolling way, and curing the protective layer paint;
(2) and preparing a functional layer, and directly blade-coating or roll-coating the functional layer paint on the protective layer to obtain paint A7.
The protective layer in the step (1) is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion and 10kg of ordinary portland cement with the strength of 42.5; the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component is 2:1.
in the step (2), the functional layer is prepared by stirring and mixing the following components by weight, 30kg of plasticizing styrene-acrylic emulsion, 45kg of common Portland cement with the strength of 42.5, 3kg of 30-mesh sand, 7.5kg of 60-mesh sand, 3kg of 120-mesh sand, 1.5kg of 200-mesh sand and 10g of functional additive; wherein the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component to the graded sand is 2:1.5: 1.
Inventive example 8
The difference between this example and inventive example 1 is that the ratio of the functional layer components is different, as described below.
The coating for the asphalt-based pre-paved waterproof system is prepared by the following method:
(1) preparing a protective layer, coating a protective layer paint on a three-oil two-cloth system in a scraping or rolling way, and curing the protective layer paint;
(2) and preparing a functional layer, and directly blade-coating or roll-coating the functional layer paint on the protective layer to obtain paint A8.
The protective layer in the step (1) is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion and 10kg of ordinary portland cement with the strength of 42.5; the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component is 2:1.
in the step (2), the functional layer is prepared by stirring and mixing the following components by weight, 40kg of plasticizing styrene-acrylic emulsion, 40kg of common Portland cement with the strength of 42.5, 2kg of 30-mesh sand, 5kg of 60-mesh sand, 2kg of 120-mesh sand, 1kg of 200-mesh sand and 10g of functional additive; wherein the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component to the graded sand is 2:2: 0.5.
Inventive example 9
The difference between this example and inventive example 1 is that the ratio of the functional layer components is different, as described below.
The coating for the asphalt-based pre-paved waterproof system is prepared by the following method:
(1) preparing a protective layer, coating a protective layer paint on a three-oil two-cloth system in a scraping or rolling way, and curing the protective layer paint;
(2) and preparing a functional layer, and directly blade-coating or roll-coating the functional layer paint on the protective layer to obtain paint A9.
The protective layer in the step (1) is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion and 10kg of ordinary portland cement with the strength of 42.5; the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component is 2:1.
in the step (2), the functional layer is prepared by stirring and mixing the following components by weight, 40kg of plasticizing styrene-acrylic emulsion, 32kg of common Portland cement with the strength of 42.5, 2kg of 30-mesh sand, 5kg of 60-mesh sand, 2kg of 120-mesh sand, 1kg of 200-mesh sand and 10g of functional additive; wherein the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component to the graded sand is 2.5:2: 1.
Inventive example 10
The difference between this example and inventive example 1 is that the ratio of the functional layer components is different, as described below.
The coating for the asphalt-based pre-paved waterproof system is prepared by the following method:
(1) preparing a protective layer, coating a protective layer paint on a three-oil two-cloth system in a scraping or rolling way, and curing the protective layer paint;
(2) and preparing a functional layer, and directly blade-coating or roll-coating the functional layer paint on the protective layer to obtain paint A10.
The protective layer in the step (1) is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion and 10kg of ordinary portland cement with the strength of 42.5; the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component is 2:1.
in the step (2), the functional layer is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion, 40kg of common Portland cement with the strength of 42.5, 2kg of 30-mesh sand, 5kg of 60-mesh sand, 2kg of 120-mesh sand, 1kg of 200-mesh sand and 10g of functional additive; wherein the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component to the graded sand is 2:4: 1.
Inventive example 11
The difference between this example and inventive example 1 is that the ratio of the functional layer components is different, as described below.
The coating for the asphalt-based pre-paved waterproof system is prepared by the following method:
(1) preparing a protective layer, coating a protective layer paint on a three-oil two-cloth system in a scraping or rolling way, and curing the protective layer paint;
(2) and preparing a functional layer, and directly blade-coating or roll-coating the functional layer paint on the protective layer to obtain paint A11.
The protective layer in the step (1) is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion and 10kg of ordinary portland cement with the strength of 42.5; the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component is 2:1.
in the step (2), the functional layer is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion, 60kg of common Portland cement with the strength of 42.5, 2kg of 30-mesh sand, 5kg of 60-mesh sand, 2kg of 120-mesh sand, 1kg of 200-mesh sand and 10g of functional additive; wherein the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component to the graded sand is 2:6: 1.
Inventive example 12
The difference between this example and inventive example 1 is that the cement components in the formulation are different, as described below.
The coating for the asphalt-based pre-paved waterproof system is prepared by the following method:
(1) preparing a protective layer, coating a protective layer paint on a three-oil two-cloth system in a scraping or rolling way, and curing the protective layer paint;
(2) and preparing a functional layer, and directly blade-coating or roll-coating the functional layer paint on the protective layer to obtain paint A12.
The protective layer in the step (1) is prepared by stirring and mixing the following components by weight, wherein 20kg of plasticizing styrene-acrylic emulsion and 10kg of white cement with the strength of 52.5 are mixed, and the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component is 2:1.
the functional layer in the step (2) is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion, 30kg of white cement with the strength of 52.5, 2kg of 30-mesh sand, 5kg of 60-mesh sand, 2kg of 120-mesh sand, 1kg of 200-mesh sand and 10g of functional additive; wherein the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component to the graded sand is 1:1.5: 0.5.
Inventive example 13
The difference between this example and inventive example 1 is that the cement components in the formulation are different, as described below.
The coating for the asphalt-based pre-paved waterproof system is prepared by the following method:
(1) preparing a protective layer, coating a protective layer paint on a three-oil two-cloth system in a scraping or rolling way, and curing the protective layer paint;
(2) and preparing a functional layer, and directly blade-coating or roll-coating the functional layer paint on the protective layer to obtain paint A13.
The protective layer in the step (1) is prepared by stirring and mixing the following components by weight, wherein 20kg of plasticizing styrene-acrylic emulsion, 5kg of common Portland cement with the strength of 42.5 and 5kg of white cement with the strength of 52.5 are mixed, and the weight ratio of the plasticizing styrene-acrylic emulsion to the cement components is 2:1.
in the step (2), the functional layer is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion, 15kg of common Portland cement with the strength of 42.5, 15kg of white cement with the strength of 52.5, 2kg of 30-mesh sand, 5kg of 60-mesh sand, 2kg of 120-mesh sand, 1kg of 200-mesh sand and 10g of functional additive; wherein the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component to the graded sand is 1:1.5: 0.5.
Inventive example 14
The difference between this example and inventive example 1 is that the quality of the functional additives in the formulation is different, as described below.
The coating for the asphalt-based pre-paved waterproof system is prepared by the following method:
(1) preparing a protective layer, coating a protective layer paint on a three-oil two-cloth system in a scraping or rolling way, and curing the protective layer paint;
(2) and preparing a functional layer, and directly blade-coating or roll-coating the functional layer paint on the protective layer to obtain paint A14.
The protective layer in the step (1) is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion and 10kg of ordinary portland cement with the strength of 42.5; the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component is 2:1.
in the step (2), the functional layer is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion, 30kg of common Portland cement with the strength of 42.5, 2kg of 30-mesh sand, 5kg of 60-mesh sand, 2kg of 120-mesh sand, 1kg of 200-mesh sand and 30g of functional additive; wherein the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component to the graded sand is 1:1.5: 0.5.
Comparative examples
Comparative example 1 No Polymer emulsion for protective layer
This example is different from inventive example 1 in that the protective layer does not contain a polymer emulsion, as described below.
The coating for the asphalt-based pre-paved waterproof system is prepared by the following method:
(1) preparing a protective layer, coating a protective layer paint on a three-oil two-cloth system in a scraping or rolling way, and curing the protective layer paint;
(2) and preparing a functional layer, and directly blade-coating or roll-coating the functional layer paint on the protective layer to obtain paint B1.
The protective layer in the step (1) is 10kg of ordinary Portland cement with the strength of 42.5.
In the step (2), the functional layer is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion, 30kg of common Portland cement with the strength of 42.5, 2kg of 30-mesh sand, 5kg of 60-mesh sand, 2kg of 120-mesh sand, 1kg of 200-mesh sand and 10g of functional additive; wherein the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component to the graded sand is 1:1.5: 0.5.
Comparative example 2 protective layer without cement
This example differs from inventive example 1 in that the protective layer does not contain a cement component, as described below.
The coating for the asphalt-based pre-paved waterproof system is prepared by the following method:
(1) preparing a protective layer, coating a protective layer paint on a three-oil two-cloth system in a scraping or rolling way, and curing the protective layer paint;
(2) and preparing a functional layer, and directly blade-coating or roll-coating the functional layer paint on the protective layer to obtain paint B2.
In the step (1), the protective layer is 20kg of plasticizing styrene-acrylic emulsion.
In the step (2), the functional layer is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion, 30kg of common Portland cement with the strength of 42.5, 2kg of 30-mesh sand, 5kg of 60-mesh sand, 2kg of 120-mesh sand, 1kg of 200-mesh sand and 10g of functional additive; wherein the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component to the graded sand is 1:1.5: 0.5.
Comparative example 3 functional layer without Polymer emulsion
This example differs from inventive example 1 in that the functional layer does not contain a polymer emulsion, as described below.
The coating for the asphalt-based pre-paved waterproof system is prepared by the following method:
(1) preparing a protective layer, coating a protective layer paint on a three-oil two-cloth system in a scraping or rolling way, and curing the protective layer paint;
(2) and preparing a functional layer, and directly blade-coating or roll-coating the functional layer paint on the protective layer to obtain paint B3.
The protective layer in the step (1) is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion and 10kg of ordinary portland cement with the strength of 42.5; the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component is 2:1.
in the step (2), the functional layer is prepared by stirring and mixing 30kg of ordinary portland cement with the strength of 42.5, 2kg of 30-mesh sand, 5kg of 60-mesh sand, 2kg of 120-mesh sand, 1kg of 200-mesh sand and 10g of functional additive; wherein the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component to the graded sand is 0:1.5: 0.5.
Comparative example 4 functional layer without cement
This example differs from inventive example 1 in that the functional layer does not contain a cement component, as described in detail below.
The coating for the asphalt-based pre-paved waterproof system is prepared by the following method:
(1) preparing a protective layer, coating a protective layer paint on a three-oil two-cloth system in a scraping or rolling way, and curing the protective layer paint;
(2) and preparing a functional layer, and directly blade-coating or roll-coating the functional layer paint on the protective layer to obtain paint B4.
The protective layer in the step (1) is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion and 10kg of ordinary portland cement with the strength of 42.5; the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component is 2:1.
in the step (2), the functional layer is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion, 2kg of 30-mesh sand, 5kg of 60-mesh sand, 2kg of 120-mesh sand, 1kg of 200-mesh sand and 10g of functional additive; wherein the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component to the graded sand is 1:0: 0.5.
Comparative example 5
This example differs from inventive example 1 in that there is no graded sand in the functional layer, as described in detail below.
The coating for the asphalt-based pre-paved waterproof system is prepared by the following method:
preparing a protective layer, coating the protective layer on a three-oil two-cloth system in a blade coating or roll coating mode, and curing to obtain a coating B5.
In the above steps, the protective layer is prepared by stirring and mixing the following components by weight, 20kg of plasticizing styrene-acrylic emulsion and 10kg of ordinary portland cement with the strength of 42.5; the weight ratio of the plasticizing styrene-acrylic emulsion to the cement component is 2:1.
test examples
The peel strength of the prepared anti-adhesive coatings A1-A13 and B1-B5 and post-cast concrete is tested according to a method specified in Pre-paved waterproof coiled material GB/T23457-2017, and the test results are shown in the table below.
The test result shows that: the anti-adhesion coating for the asphalt-based waterproof system has the peel strength of more than 4.5N/mm with post-cast concrete under the condition of no treatment. It is clear from the comparison of example A11 with A4-A10 that the binding capacity is significantly improved when the weight ratio of the polymer emulsion, the cement component and the graded sand is within the range of the present invention. As can be seen from the comparison between examples A1-A12 and A13, the peeling strength between the coating and the post-cast concrete under the ultraviolet treatment can be greatly improved by optimizing the weight ratio of the ultraviolet absorber to the polymer emulsion. It is clear from a comparison of examples a1, a11 and a12 that when the cementitious components are mixed in a weight ratio of 1:1 of ordinary portland cement having a strength of 42.5 and white cement having a strength of 52.5, the bonding ability is improved.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (4)
1. The coating for the asphalt-based pre-paved waterproof system is characterized by comprising a protective layer and a functional layer from bottom to top,
the protective layer comprises 20-40 parts of polymer emulsion and 10-80 parts of cement component by weight, the functional layer comprises 20-40 parts of polymer emulsion, 30-60 parts of cement component by weight, 10-20 parts of sand and 0.01-0.1 part of functional auxiliary agent by weight, the polymer emulsion is plasticizing styrene-acrylic emulsion, and the cement component is formed by mixing ordinary portland cement with the strength of 42.5 and white cement with the strength of 52.5 in a weight ratio of 1: 1;
the sand is graded sand, and comprises 30-mesh sand, 60-mesh sand, 120-mesh sand and 200-mesh sand, wherein the weight ratio of the 30-mesh sand to the 60-mesh sand to the 120-mesh sand to the 200-mesh sand is 2: 5:2: 1;
the weight ratio of the high molecular emulsion to the cement component in the protective layer is 1: (0.5-2), the weight ratio of the high molecular emulsion, the cement component and the graded sand in the functional layer is (1-2.5): (1.5-4): (0.5-2).
2. The asphalt-based pre-applied waterproofing system coating material according to claim 1, wherein the functional auxiliary agent comprises an ultraviolet absorber, a cement moisture-proofing agent, and an accelerator.
3. The asphalt-based pre-paved waterproofing system coating material according to claim 2, wherein the ultraviolet absorber is one or more of UV-O, UV-P and UV-9, and the weight percentage of the ultraviolet absorber based on the weight of the polymer emulsion is 0.05% to 0.1%.
4. A method of preparing a coating according to any one of claims 1 to 3, comprising the steps of:
(1) preparing a protective layer, and uniformly mixing the high-molecular emulsion and the cement component according to a certain proportion;
(2) coating the protective layer paint on a three-oil two-cloth system in a blade coating or roll coating manner, and curing;
(3) preparing a functional layer, and uniformly mixing the high-molecular emulsion, the cement component, the graded sand and the functional auxiliary agent according to a certain proportion;
(4) and directly blade-coating or roll-coating the functional layer coating on the protective layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010360288.9A CN111574864B (en) | 2020-04-30 | 2020-04-30 | Asphalt-based coating for pre-paved waterproof system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010360288.9A CN111574864B (en) | 2020-04-30 | 2020-04-30 | Asphalt-based coating for pre-paved waterproof system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111574864A CN111574864A (en) | 2020-08-25 |
| CN111574864B true CN111574864B (en) | 2022-03-11 |
Family
ID=72122787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010360288.9A Active CN111574864B (en) | 2020-04-30 | 2020-04-30 | Asphalt-based coating for pre-paved waterproof system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111574864B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2347883C (en) * | 1998-10-26 | 2007-06-26 | Akzo Nobel Nv | Aqueous coating composition comprising a mixture of polyurethane dispersions |
| CN104230240A (en) * | 2014-09-11 | 2014-12-24 | 岳阳东方雨虹防水技术有限责任公司 | Flexible cement-base waterproof coating and preparation and application methods thereof |
| CN110482951A (en) * | 2019-08-25 | 2019-11-22 | 浙江合塑控股有限公司 | A kind of preparation method of building waterproof composite material |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477713A (en) * | 2010-11-26 | 2012-05-30 | 深圳市嘉达高科产业发展有限公司 | Composite elastic terrace |
| CN109554007B (en) * | 2018-11-14 | 2021-03-26 | 湖南先锋建材有限公司 | Impervious anti-cracking waterproof coating with strong bonding force and preparation method thereof |
-
2020
- 2020-04-30 CN CN202010360288.9A patent/CN111574864B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2347883C (en) * | 1998-10-26 | 2007-06-26 | Akzo Nobel Nv | Aqueous coating composition comprising a mixture of polyurethane dispersions |
| CN104230240A (en) * | 2014-09-11 | 2014-12-24 | 岳阳东方雨虹防水技术有限责任公司 | Flexible cement-base waterproof coating and preparation and application methods thereof |
| CN110482951A (en) * | 2019-08-25 | 2019-11-22 | 浙江合塑控股有限公司 | A kind of preparation method of building waterproof composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111574864A (en) | 2020-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102050608B (en) | Polymer cement waterproof paint and method for preparing waterproof coating layer | |
| WO2016142339A1 (en) | Flexible cementitious waterproofing slurry | |
| CN112638841A (en) | Dry powder composition, putty composition obtainable from such composition and substrate coated with such putty composition | |
| CN103642296A (en) | Novel radiation-proof putty powder | |
| CN110551431A (en) | ultrathin composite rock slice stone-like paint and preparation method and application thereof | |
| JP4709676B2 (en) | Inorganic elastic crack injection material | |
| CN105419447A (en) | Interior wall putty and preparation method thereof | |
| CN101397216A (en) | Multifunctional paste shape waterproof agent and preparation method thereof | |
| KR101170307B1 (en) | Functional Tile Adhesive Using Elasticity Powder | |
| CN110885226B (en) | Colored gypsum plastering mortar and preparation method thereof | |
| EP2776376B1 (en) | Low efflorescence tile grout composition | |
| CN109354455B (en) | Ceramic tile crack sealer and preparation method thereof | |
| CN108585698B (en) | Special joint filling mortar for light partition wall board | |
| CN111574864B (en) | Asphalt-based coating for pre-paved waterproof system | |
| CN110204932A (en) | A kind of aqueous silicate compound heat-insulation anti-flaming dope and preparation method thereof | |
| EP0460744A1 (en) | Cement based mortar compositions having elastomeric properties, and method of manufacture | |
| CN106987167B (en) | Priming decorative putty and preparation method thereof | |
| CN104193268B (en) | Flower stand water conservation crack resistance type concrete | |
| CN106010058A (en) | Superhigh-elasticity water-resistant paint and preparation method thereof | |
| CN104326707B (en) | Anti- accumulation of salt in the surface soil exterior wall facing mortar | |
| CN112939539A (en) | Anti-crack mortar dry powder and using method thereof | |
| JP3903670B2 (en) | Ground conditioner | |
| US10843967B2 (en) | Road and surface coating compositions and processes thereof | |
| CN109231939B (en) | Single-component paste joint mixture and preparation method thereof | |
| CN110981362A (en) | Plastering mortar and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |