CN113444452A - Construction method of composite waterproof layer for building structural engineering - Google Patents

Construction method of composite waterproof layer for building structural engineering Download PDF

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CN113444452A
CN113444452A CN202110605370.8A CN202110605370A CN113444452A CN 113444452 A CN113444452 A CN 113444452A CN 202110605370 A CN202110605370 A CN 202110605370A CN 113444452 A CN113444452 A CN 113444452A
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weight
parts
waterproof coating
rubber asphalt
asphalt waterproof
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邢毓波
罗莹莹
王帅超
马同剑
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Da Yu Wei Ye Beijing International Technology Co ltd
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Da Yu Wei Ye Beijing International Technology Co ltd
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D195/00Coating compositions based on bituminous materials, e.g. asphalt, tar, pitch
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/65Additives macromolecular
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66Sealings
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
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Abstract

The invention provides a construction method of a composite waterproof layer for building structural engineering, which comprises the following steps: and sequentially spraying the water-based non-curing rubber asphalt waterproof coating and the quick-setting rubber asphalt waterproof coating on the concrete base surface layer. Wherein, the water-based non-curing rubber asphalt waterproof coating and the quick-setting rubber asphalt waterproof coating are fused and bonded to form the composite waterproof layer for the building structural engineering. In the construction method, the water-based non-cured rubber asphalt waterproof coating layer in direct contact with the base surface layer can deform to adapt to cracks appearing on the base surface layer, and can provide an extension space for the quick-setting rubber asphalt waterproof coating layer sprayed on the surface of the water-based non-cured rubber asphalt waterproof coating layer while filling the cracks, so that the waterproof layer is prevented from being damaged due to fracture of the quick-setting rubber asphalt waterproof coating layer sprayed subsequently because no extension space exists.

Description

Construction method of composite waterproof layer for building structural engineering
Technical Field
The invention belongs to the technical field of materials, and particularly relates to a construction method of a composite waterproof layer for building structural engineering.
Background
The research and development of waterproof coatings are always the key work in the field of building structure engineering waterproofing, and the existing waterproof layer structure of a building is damaged by slight settlement deformation of the building structure and cracks generated by shrinkage of a reinforced concrete structure. Meanwhile, when waterproof construction is carried out on projects with the cracks, the requirement on the waterproof material is correspondingly improved, the waterproof material is required to have good extensibility and good strength, wherein the quick-setting rubber asphalt waterproof coating is widely applied to the waterproof field of building structure projects due to good tensile strength, however, the quick-setting rubber asphalt waterproof coating is used as a waterproof layer of a base structure, when the base structure cracks, the quick-setting rubber asphalt waterproof coating cannot exert the tensile property and cracks along with the cracks of the base structure due to full adhesion (close adhesion) between the quick-setting rubber asphalt waterproof coating and the base structure, and the waterproof function of the waterproof coating can be damaged.
Therefore, a method for solving the problem that the waterproof layer is broken because the rapid-hardening rubber asphalt waterproof coating is fully adhered (tightly attached) to the base layer structure and cannot exert the self-possessed tensile property is urgently needed at present. The quick-setting rubber asphalt waterproof coating can exert better waterproof effect.
Disclosure of Invention
In order to solve the problem that when the quick-setting rubber asphalt waterproof coating is singly used as a waterproof layer, the waterproof layer is broken along with the structural crack due to the fact that the quick-setting rubber asphalt waterproof coating is fully adhered (tightly attached) with a base layer structure and cannot exert the tensile property of the waterproof layer, the construction method comprises the following steps: sequentially spraying water-based non-curing rubber asphalt waterproof paint and quick-setting rubber asphalt waterproof paint on the concrete base surface layer;
and the water-based non-cured rubber asphalt waterproof coating and the quick-setting rubber asphalt waterproof coating are fused and adhered to form the composite waterproof layer for the building structural engineering.
Preferably, the water-based non-curing rubber asphalt waterproof coating is formed by emulsifying and crosslinking 60-80 parts by weight of special anion modified emulsified asphalt, 10-40 parts by weight of anion latex, 0.2-1 part by weight of defoaming agent, 0.5-2 parts by weight of stabilizer, 0.2-1 part by weight of anti-aging agent and 5-15% by weight of coagulant;
preferably, the quick-setting rubber asphalt waterproof coating is formed by emulsifying and crosslinking 60-80 parts by weight of anionic emulsified asphalt, 10-40 parts by weight of anionic latex, 0.2-1 part by weight of defoaming agent, 0.5-2 parts by weight of stabilizer, 0.2-1 part by weight of anti-aging agent and 5-15% by weight of coagulant.
Preferably, the tailored anionically modified emulsified asphalt comprises: 40-60 parts of No. 110 matrix asphalt, 1-2 parts of SBS particles, 0.5-2 parts of SBR particles, 0.5-1.5 parts of SIS particles, 1-10 parts of naphthenic oil, 1-10 parts of aromatic oil, 40-55 parts of deionized water and 0.5-3 parts of anionic emulsifier;
wherein the anionic emulsifier comprises: one or more of carboxylate, sulfonate, sulfate and phosphate.
Preferably, the anionic latex comprises: one or more of modified acrylic emulsion, polyolefin wax emulsion, terpene resin emulsion, styrene-butadiene latex and chloroprene latex;
the defoaming agent is an organic silicon defoaming agent (BYK-018);
the stabilizer is an aqueous solution prepared by compounding 30% of solid content of rosin soap and a phosphate dispersing agent according to the mass ratio of 1: 2;
the anti-aging agent is dilauryl thiodipropionate (DLTP);
the coagulant is at least one of calcium chloride, zinc sulfate and magnesium chloride.
Preferably, the anionic emulsified asphalt is No. 70 emulsified asphalt;
the anionic latex comprises: one or more of modified acrylic emulsion, styrene-butadiene latex and chloroprene latex, wherein neoprene latex is preferred;
the defoaming agent is BYK-018; the stabilizer is long-chain aliphatic carboxylate and naphthenic carboxylate, and the weight ratio of the long-chain aliphatic carboxylate to the naphthenic carboxylate is 1: 1 compounding into 30% water solution;
the anti-aging agent is DLTP;
the coagulant is at least one of calcium chloride, zinc sulfate and magnesium chloride.
Preferably, the spraying thickness of the water-based non-cured rubber asphalt waterproof coating is 0.5-1.5mm, and the spraying thickness of the water-based non-cured rubber asphalt waterproof coating is 1-2.0 mm.
Preferably, the production process of the water-based non-cured rubber asphalt waterproof coating comprises the following steps:
step 1: stirring 60-80 parts by weight of special anion modified emulsified asphalt, 10-40 parts by weight of anion latex, 0.5-2 parts by weight of defoaming agent, 0.5-2 parts by weight of stabilizer and 0.2-1 part by weight of anti-aging agent in a stirring kettle for 0.5-1h to obtain a mixed component A;
step 2: preparing 5-15 parts by weight of coagulant into a solution with the mass concentration of 5-15% to obtain a component B;
and step 3: the component A and the component B are mixed according to the mass ratio of 10: 1, spraying and mixing by a spray gun to obtain the water-based non-cured rubber asphalt waterproof coating.
Preferably, the production process steps of the specially-made anion modified emulsified asphalt comprise:
step 1': mixing 40-60 parts by weight of No. 110 base asphalt, 1-2 parts by weight of SBS particles, 0.5-2 parts by weight of SBR particles, 0.5-1.5 parts by weight of SIS particles, 1-10 parts by weight of naphthenic oil and 1-10 parts by weight of aromatic oil, and stirring at 190 ℃ for 4-6 hours to obtain a mixed component A;
step 2': preparing 0.5-3 parts by weight of anionic emulsifier into an aqueous solution, adjusting the pH value to 11-13, and heating to 60-80 ℃ to obtain a mixed component B;
step 3': and (3) shearing, grinding and emulsifying the mixed component A and the mixed component B obtained in the step (1) and the step (2) through a colloid mill, discharging, cooling and filtering to obtain the specially-prepared anion modified emulsified asphalt.
Preferably, the production process of the quick-setting rubber asphalt waterproof coating comprises the following steps: mixing 60-80 parts by weight of anionic emulsified asphalt, 10-40 parts by weight of anionic latex, 0.2-1 part by weight of defoaming agent, 0.5-2 parts by weight of stabilizer, 0.2-1 part by weight of anti-aging agent and 5-15% of coagulant, and uniformly stirring to obtain the quick-setting rubber asphalt waterproof coating.
Compared with the prior art, the invention has the following advantages:
(1) the invention provides a construction method of a composite waterproof layer for building structural engineering, wherein a water-based non-cured rubber asphalt waterproof coating layer is directly contacted with a concrete base surface layer, the water-based non-cured rubber asphalt waterproof coating layer has low requirement on the water content of the base surface, the base surface can be constructed without clear water, and the condition requirement of waterproof construction on the base surface layer is greatly reduced. Meanwhile, the water-based non-cured rubber asphalt waterproof coating layer is never cured, when a base layer structure cracks, the water-based non-cured rubber asphalt waterproof coating layer can deform to adapt to the cracks, so that the cracks are filled, meanwhile, an extension space can be provided for the quick-setting rubber asphalt waterproof coating layer sprayed on the surface of the water-based non-cured rubber asphalt waterproof coating layer, and the waterproof layer is prevented from being damaged due to the fact that the quick-setting rubber asphalt waterproof coating layer is not broken due to the fact that the extension space is not provided.
(2) The invention provides a construction method of a composite waterproof layer for building structural engineering, which adopts a structural design that a quick-setting rubber asphalt waterproof coating layer is sprayed on the surface of a water-based non-curing waterproof coating layer, and because the water-based non-curing rubber asphalt waterproof coating and the quick-setting rubber asphalt waterproof coating are both water-based coatings, the water-based non-curing rubber asphalt waterproof coating and the quick-setting rubber asphalt waterproof coating can be well bonded and fused to form the composite waterproof layer with a compact structure, thereby achieving the purposes of no water leakage and no water channeling.
(3) The construction method of the composite waterproof layer for the building structural engineering provided by the invention is low in manufacturing cost, simple in construction process and easy to operate, and is beneficial to wide popularization.
Drawings
Fig. 1 is a schematic structural diagram illustrating a composite waterproof layer for building structural engineering according to an embodiment of the present invention; in the figure, 1, a cast-in-place reinforced concrete structure; 2. a water-based non-cured rubber asphalt waterproof coating layer; 3. quick-setting rubber asphalt waterproof coating layer.
Detailed Description
The following examples are provided to further understand the present invention, not to limit the scope of the present invention, but to provide the best mode, not to limit the content and the protection scope of the present invention, and any product similar or similar to the present invention, which is obtained by combining the present invention with other prior art features, falls within the protection scope of the present invention.
In order to solve the problem that when the rapid-hardening rubber asphalt waterproof coating is singly used as a waterproof layer, the rapid-hardening rubber asphalt waterproof coating is fully adhered (tightly attached) with a base layer structure and cannot exert the self tensile property, so that the waterproof layer is fractured along with the structural crack, the invention provides the technical conception that: the invention utilizes the excellent extensibility of the water-based non-cured rubber asphalt waterproof coating and the characteristic of the same belonging to the water-based coating to respectively spray the water-based non-cured rubber asphalt waterproof coating and the quick-setting rubber asphalt waterproof coating on the concrete base surface layer, so that the water-based non-cured rubber asphalt waterproof coating and the quick-setting rubber asphalt waterproof coating are mutually fused and bonded to form a composite waterproof layer, when the base surface structure cracks, the water-based non-cured rubber asphalt waterproof coating layer which is tightly contacted with the base surface layer can deform to adapt to the cracks, and the cracks are filled up, and simultaneously, an extension space is provided for the quick-setting rubber asphalt waterproof coating layer sprayed on the surface of the base surface, so that the damage of the waterproof layer caused by the cracking of the quick-setting rubber asphalt waterproof coating layer due to no extension space can be prevented. Based on the technical conception, the invention has the following specific implementation contents:
the invention provides a construction method of a composite waterproof layer for building structural engineering, which comprises the following steps: sequentially spraying water-based non-curing rubber asphalt waterproof paint and quick-setting rubber asphalt waterproof paint on the concrete base surface layer;
fig. 1 shows a schematic structural diagram of a composite waterproof layer for building structural engineering provided in an embodiment of the present invention, please refer to fig. 1, wherein the composite waterproof layer for building structural engineering is formed by fusion bonding of an aqueous non-curable rubber asphalt waterproof coating and the rapid-setting rubber asphalt waterproof coating.
In the concrete implementation, the water-based non-curing rubber asphalt waterproof coating is formed by emulsifying and crosslinking 60-80 parts by weight of special anion modified emulsified asphalt, 10-40 parts by weight of anion latex, 0.2-1 part by weight of defoaming agent, 0.5-2 parts by weight of stabilizer, 0.2-1 part by weight of anti-aging agent and 5-15% by weight of coagulant.
In the concrete implementation, the quick-setting rubber asphalt waterproof coating is formed by emulsifying and crosslinking 60-80 parts by weight of anionic emulsified asphalt, 10-40 parts by weight of anionic latex, 0.2-1 part by weight of defoaming agent, 0.5-2 parts by weight of stabilizer, 0.2-1 part by weight of anti-aging agent and 5-15% by weight of coagulant.
In specific implementation, the specially-produced anion modified emulsified asphalt comprises: 40-60 parts of No. 110 matrix asphalt, 1-2 parts of SBS particles, 0.5-2 parts of SBR particles, 0.5-1.5 parts of SIS particles, 1-10 parts of naphthenic oil, 1-10 parts of aromatic oil, 40-55 parts of deionized water and 0.5-3 parts of anionic emulsifier;
wherein the anionic emulsifier comprises: one or more of carboxylate, sulfonate, sulfate and phosphate.
In particular embodiments, the anionic latex comprises: one or more of modified acrylic emulsion, polyolefin wax emulsion, terpene resin emulsion, styrene-butadiene latex and chloroprene latex;
the defoaming agent is BYK-018;
the stabilizer is an aqueous solution prepared by compounding 30% of solid content of rosin soap and phosphate dispersant according to the mass ratio of 1: 2;
the anti-aging agent is DLTP;
the coagulant is at least one of calcium chloride, zinc sulfate and magnesium chloride.
In specific implementation, the anionic emulsified asphalt is No. 70 emulsified asphalt;
the anionic latex comprises: one or more of modified acrylic emulsion, styrene-butadiene latex and chloroprene latex, wherein neoprene latex is preferred;
the defoaming agent is BYK-018; the stabilizer is long-chain aliphatic carboxylate and naphthenic carboxylate, and the weight ratio of the long-chain aliphatic carboxylate to the naphthenic carboxylate is 1: 1 compounding into 30% water solution;
the anti-aging agent is DLTP;
the coagulant is at least one of calcium chloride, zinc sulfate and magnesium chloride.
In the specific implementation, the spraying thickness of the water-based non-cured rubber asphalt waterproof coating is 0.5-1.5mm, and the spraying thickness of the water-based non-cured rubber asphalt waterproof coating is 1-2.0 mm.
In specific implementation, the production process of the water-based non-cured rubber asphalt waterproof coating comprises the following steps:
step 1: stirring 60-80 parts by weight of special anion modified emulsified asphalt, 10-40 parts by weight of anion latex, 0.5-2 parts by weight of defoaming agent, 0.5-2 parts by weight of stabilizer and 0.2-1 part by weight of anti-aging agent in a stirring kettle for 0.5-1h to obtain a mixed component A;
step 2: preparing 5-15 parts by weight of coagulant into a solution with the mass concentration of 5-15% to obtain a component B;
and step 3: the component A and the component B are mixed according to the mass ratio of 10: 1, spraying and mixing by a spray gun to obtain the water-based non-cured rubber asphalt waterproof coating.
In specific implementation, the production process of the special anion modified emulsified asphalt comprises the following steps:
step 1': mixing 40-60 parts by weight of No. 110 base asphalt, 1-2 parts by weight of SBS particles, 0.5-2 parts by weight of SBR particles, 0.5-1.5 parts by weight of SIS particles, 1-10 parts by weight of naphthenic oil and 1-10 parts by weight of aromatic oil, and stirring at 190 ℃ for 4-6 hours to obtain a mixed component A;
step 2': preparing 0.5-3 parts by weight of anionic emulsifier into an aqueous solution, adjusting the pH value to 11-13, and heating to 60-80 ℃ to obtain a mixed component B;
step 3': and (3) shearing, grinding and emulsifying the mixed component A and the mixed component B obtained in the step (1) and the step (2) through a colloid mill, discharging, cooling and filtering to obtain the specially-prepared anion modified emulsified asphalt.
In specific implementation, the production process of the quick-setting rubber asphalt waterproof coating comprises the following steps: mixing 60-80 parts by weight of anionic emulsified asphalt, 10-40 parts by weight of anionic latex, 0.2-1 part by weight of defoaming agent, 0.5-2 parts by weight of stabilizer, 0.2-1 part by weight of anti-aging agent and 5-15% of coagulant, and uniformly stirring to obtain the rapid-setting rubber asphalt waterproof coating
In order that those skilled in the art will more clearly understand the present invention, the method of the present invention will now be described in detail by way of the following examples.
Example 1:
(1) the process and the formula of the special anion modified emulsified asphalt are as follows:
heating No. 110 matrix asphalt 55, SBS 1.5 parts, SBR 0.5 part, SIS 0.5 part, naphthenic oil 6 parts and aromatic oil 5 parts to 180 ℃, stirring for 5H to ensure full swelling and melting, preparing 2 parts of anionic emulsifier into aqueous solution, adjusting pH to 12, and heating to 70 ℃; and simultaneously shearing, grinding and emulsifying the two materials by a colloid mill, discharging, cooling and filtering to obtain the specially-prepared anion modified emulsified asphalt for later use.
(2) The process and formula of the water-based non-curing rubber asphalt waterproof coating comprise the following steps:
80 parts of special anion modified emulsified asphalt, polyolefin wax emulsion, styrene-butadiene latex and ethylene propylene diene monomer emulsion are mixed according to the proportion of 1: 1: 1, mixing 20 parts of the components, 1 part of a defoaming agent, 2 parts of a stabilizing agent and 1 part of an anti-aging agent, stirring the components in a stirring kettle for 0.5H to obtain a waterproof coating, and spraying 10 parts of the waterproof coating and a calcium chloride coagulant by using specific spraying equipment to construct the waterproof coating, wherein the spraying thickness is 1.0 mm;
(3) the process and formula of the quick-setting rubber asphalt waterproof coating comprise the following steps:
60 parts of anionic emulsified asphalt, 40 parts of anionic latex, 0.5 part of defoaming agent, 1.2 parts of stabilizer and 1 part of anti-aging agent are mixed and stirred for 30min, and when in use, the waterproof coating and 10 parts of calcium chloride coagulant are sprayed on the water-based non-cured rubber asphalt waterproof coating layer by special spraying equipment, and the spraying thickness is 2.0 mm.
Example 2:
(1) the process and the formula of the special anion modified emulsified asphalt are as follows:
heating No. 110 matrix asphalt 40, SBS particles 1 part, SBR particles 0.5 part, SIS particles 0.5 part, naphthenic oil 2 part and aromatic oil 2 part to 180 ℃, stirring for 5H to ensure full swelling and melting, preparing 2 parts of anionic emulsifier into aqueous solution, adjusting the pH value to 12, and heating to 70 ℃; and simultaneously shearing, grinding and emulsifying the two materials by a colloid mill, discharging, cooling and filtering to obtain the specially-prepared anion modified emulsified asphalt for later use.
(2) The process and formula of the water-based non-curing rubber asphalt waterproof coating comprise the following steps:
mixing 60 parts of special anion modified emulsified asphalt, polyolefin wax emulsion, styrene-butadiene latex and ethylene propylene diene monomer emulsion according to the weight ratio of 1: 1: 1, mixing 20 parts of the components, 1 part of a defoaming agent, 2 parts of a stabilizing agent and 1 part of an anti-aging agent, stirring the components in a stirring kettle for 0.5H to obtain a waterproof coating, and spraying 10 parts of the waterproof coating and a calcium chloride coagulant by using specific spraying equipment to construct the waterproof coating, wherein the spraying thickness is 1.0 mm;
(3) the process and formula of the quick-setting rubber asphalt waterproof coating comprise the following steps:
70 parts of anionic emulsified asphalt, 20 parts of anionic latex, 0.5 part of defoaming agent, 1.2 parts of stabilizer and 1 part of anti-aging agent are mixed and stirred for 30min, and when in use, the waterproof coating and 10 parts of calcium chloride coagulant are sprayed on the water-based non-cured rubber asphalt waterproof coating layer by special spraying equipment, and the spraying thickness is 2.0 mm.
The construction method of the composite waterproof layer for building structural engineering provided by the invention is described in detail, a specific example is applied in the construction method to explain the principle and the implementation mode of the invention, and the description of the example is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (10)

1. A construction method of a composite waterproof layer for building structural engineering is characterized by comprising the following steps: sequentially spraying water-based non-curing rubber asphalt waterproof paint and quick-setting rubber asphalt waterproof paint on the concrete base surface layer;
and the water-based non-cured rubber asphalt waterproof coating and the quick-setting rubber asphalt waterproof coating are fused and adhered to form the composite waterproof layer for the building structural engineering.
2. The method as claimed in claim 1, wherein the water-based non-curable rubberized asphalt waterproof coating is formed by emulsifying and crosslinking 60-80 parts by weight of special anionic modified emulsified asphalt, 10-40 parts by weight of anionic latex, 0.2-1 part by weight of defoamer, 0.5-2 parts by weight of stabilizer, 0.2-1 part by weight of anti-aging agent and 5-15% by weight of coagulant.
3. The method as claimed in claim 1, wherein the quick-setting rubber asphalt waterproof coating material is formed by emulsifying and crosslinking 60-80 parts by weight of anionic emulsified asphalt, 10-40 parts by weight of anionic latex, 0.2-1 part by weight of defoamer, 0.5-2 parts by weight of stabilizer, 0.2-1 part by weight of anti-aging agent and 5-15% by weight of coagulant.
4. The method of claim 2, wherein the tailored anionically modified emulsified asphalt comprises: 40-60 parts of No. 110 matrix asphalt, 1-2 parts of SBS particles, 0.5-2 parts of SBR particles, 0.5-1.5 parts of SIS particles, 1-10 parts of naphthenic oil, 1-10 parts of aromatic oil, 40-55 parts of deionized water and 0.5-3 parts of anionic emulsifier;
wherein the anionic emulsifier comprises: one or more of carboxylate, sulfonate, sulfate and phosphate.
5. The method of claim 2, wherein the anionic latex comprises: one or more of modified acrylic emulsion, polyolefin wax emulsion, terpene resin emulsion, styrene-butadiene latex and chloroprene latex;
the defoaming agent is an organic silicon defoaming agent;
the stabilizer is an aqueous solution prepared by compounding 30% of solid content of rosin soap and a phosphate dispersing agent according to the mass ratio of 1: 2;
the anti-aging agent is dilauryl thiodipropionate;
the coagulant is at least one of calcium chloride, zinc sulfate and magnesium chloride.
6. The method of claim 3, wherein the anionic emulsified asphalt is a No. 70 emulsified asphalt;
the anionic latex comprises: one or more of modified acrylic emulsion, styrene-butadiene latex and chloroprene latex, wherein neoprene latex is preferred;
the defoaming agent is an organic silicon defoaming agent; the stabilizer is long-chain aliphatic carboxylate and naphthenic carboxylate, and the weight ratio of the long-chain aliphatic carboxylate to the naphthenic carboxylate is 1: 1 compounding into 30% water solution;
the anti-aging agent is dilauryl thiodipropionate;
the coagulant is at least one of calcium chloride, zinc sulfate and magnesium chloride.
7. The method according to claim 1, wherein the spraying thickness of the aqueous non-curable rubberized asphalt waterproofing paint is 0.5-1.5mm, and the spraying thickness of the aqueous non-curable rubberized asphalt waterproofing paint is 1-2.0 mm.
8. The method according to claim 1, wherein the production process of the water-based non-cured rubber asphalt waterproof coating comprises the following steps:
step 1: stirring 60-80 parts by weight of special anion modified emulsified asphalt, 10-40 parts by weight of anion latex, 0.5-2 parts by weight of defoaming agent, 0.5-2 parts by weight of stabilizer and 0.2-1 part by weight of anti-aging agent in a stirring kettle for 0.5-1h to obtain a mixed component A;
step 2: preparing 5-15 parts by weight of coagulant into a solution with the mass concentration of 5-15% to obtain a component B;
and step 3: the component A and the component B are mixed according to the mass ratio of 10: 1, spraying and mixing by a spray gun to obtain the water-based non-cured rubber asphalt waterproof coating.
9. The composite waterproof layer according to claim 8, wherein the production process steps of the specially prepared anion modified emulsified asphalt comprise:
step 1': mixing 40-60 parts by weight of No. 110 base asphalt, 1-2 parts by weight of SBS particles, 0.5-2 parts by weight of SBR particles, 0.5-1.5 parts by weight of SIS particles, 1-10 parts by weight of naphthenic oil and 1-10 parts by weight of aromatic oil, and stirring at 190 ℃ for 4-6 hours to obtain a mixed component A;
step 2': preparing 0.5-3 parts by weight of anionic emulsifier into an aqueous solution, adjusting the pH value to 11-13, and heating to 60-80 ℃ to obtain a mixed component B;
step 3': and (3) shearing, grinding and emulsifying the mixed component A and the mixed component B obtained in the step (1) and the step (2) through a colloid mill, discharging, cooling and filtering to obtain the specially-prepared anion modified emulsified asphalt.
10. The method as claimed in claim 8, wherein the production process of the quick-setting rubber asphalt waterproof coating comprises the following steps: mixing 60-80 parts by weight of anionic emulsified asphalt, 10-40 parts by weight of anionic latex, 0.2-1 part by weight of defoaming agent, 0.5-2 parts by weight of stabilizer, 0.2-1 part by weight of anti-aging agent and 5-15% of coagulant, and uniformly stirring to obtain the quick-setting rubber asphalt waterproof coating.
CN202110605370.8A 2021-05-31 2021-05-31 Construction method of composite waterproof layer for building structural engineering Pending CN113444452A (en)

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Application publication date: 20210928