The study of an energy efficient cool white roof coating based on styrene acrylate copolymer and cement for waterproofing purpose—Part II: Mechanical and water impermeability properties

Xue, Xiao; Yang, Jingna; Zhang, Weidong; Jiang, Lihong; Qu, Jian; Xu, Lijin; Zhang, Hongqiang; Song, Jian; Zhang, Rongpu; Li, Yanwen; Qin, Jie; Zhang, Ziying

doi:10.1016/j.conbuildmat.2015.08.033

Cited by 35 publications

(5 citation statements)

References 8 publications

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“…Moisture is removed both from the surface of the roof and from the inner layers of the roof structure. In this case, a profiled membrane with a geotextile coating is used [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Composition of Waterproofing Material Based on Modified Fine-Grained Concrete

Zhukov,

Bazhenova,

Stepina

et al. 2024

Buildings

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The purpose of the research described in this article was to optimize the compositions based on hydraulic-modified binder and construction waste for waterproofing and repair of concrete or brick structures in contact with the ground, as well as the study of properties and development of the basis of the methodology for selecting the composition of such a waterproofing system. Processing of the results of the experiment was carried out by statistical and analytical methods. The research was based on a method for determining the adhesive strength of a waterproofing coating, based on the determination when the insulating layers are torn off. As a result of the calculation and experimental verification, the composition of the waterproofing material was obtained, which corresponds to an adhesive strength of 3.8 MPa; the strength of the waterproofing layer was 36–37 MPa, as well as the amounts of the main components: acrylic resin 3.9%; finely ground concrete waste 80 kg/m3; plasticizer consumption (0.38…0.39%) at the optimum moisture content of the base surface (9.7…9.8%).

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“…Moisture is removed both from the surface of the roof and from the inner layers of the roof structure. In this case, a profiled membrane with a geotextile coating is used [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Composition of Waterproofing Material Based on Modified Fine-Grained Concrete

Zhukov,

Bazhenova,

Stepina

et al. 2024

Buildings

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“…Polystyrene acrylate (PSA) emulsions are a highly suitable class of waterborne protective coatings for various inorganic materials, which are characterized by high adhesion levels, superior corrosion, and aging resistance. For the past few years, Xue 8 pointed out that an effective corrosion protection on cement substrates is generated by PSA emulsions through the formation of an interpenetrating network structure and bridging effect of Ca 2+ . Subsequently, Zhang 9 proposed a modification idea based on the multilayer topological molecular structure design to enhance the protective performance of PSA emulsions.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Composite Protective Coatings Coregulated by Core–Shell Structures and Graphene Oxide Interfaces

Hou

Yin

et al. 2022

ACS Appl. Mater. Interfaces

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The construction of multiple microstructures is a significant measure in improving the protective performance of composite polymer coatings. In this paper, a novel polystyrene acrylate–highly hydrophobic polysiloxane composite emulsion was fabricated by innovatively integrating the core–shell emulsion method and Pickering emulsion method through the interfacial stabilization and molecular polymerization regulation of graphene oxide, achieving a significant improvement in the compatibility of the thermoplastic core with a thermoset shell. The bonding degree between the polystyrene acrylate (PSA) component and the siloxane component is significantly improved in the synthesized composite emulsions, achieving the dual protection of the cementitious substrate with surface shielding and internal crystalline hydrophobicity. The capillary water absorption of the concrete treated with Pickering emulsions is reduced by over 98.3% with high hydrophobicity and low permeability. Meanwhile, the absolute ζ-potential and impedance of composite membranes reach over 45 mV and 109 ohms, respectively, giving the cementitious substrate excellent resistance to ionic attack and acid/alkaline corrosion. In addition, the composite membranes have excellent resistance to tensile cracking and physical erosion, maintaining a favorable adhesion level and plastic deformation under acid/alkaline attack and thermal aging, respectively.

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“…The results suggested that, after polymer modification, the average pore size inside mortar decreased, the compactness at bonding interface increased, and the bonding strength elevated. Xue et al [ 23 ] used styrene-acrylic polymer and cement as the main base materials to prepare a kind of waterproof with good tensile performance and impermeability. Yang et al [ 24 ] found that, with the increase in the added proportion of VAE re-dispersible polymer powder, both the tensile strength and tensile modulus of polymer-modified cement-based composite joint sealant increased significantly.…”

Section: Introductionmentioning

confidence: 99%

Effects of External Environments on the Fixed Elongation and Tensile Properties of the VAE Emulsion–Cement Composite Joint Sealant

Lou

Liu

et al. 2020

Materials

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Joint sealant is affected by various environmental factors in service, such as different temperatures, water soaking, ultraviolet and so on. In this paper, the VAE emulsion–cement compositejoint sealant was pretreated under multiple simulation environments. Thereafter, the degradation rules of fixed elongation and tensile properties of joint sealants at different mix proportions were systemically investigated under the action of external environments (temperature, water soaking and ultraviolet), and the influence mechanisms of diverse environmental factors were analyzed. The research results suggested that, under the action of external environments, the VAE emulsion–cement composite joint sealants exhibited degradation effects to varying degrees. After the addition of plasticizer, the joint sealants had reduced cohesion strength in low temperature environment and enhanced flexible deformability. The addition of water repellent improved the water resistance of joint sealants. Meanwhile, adding ultraviolet shield agent partially improved the ultraviolet radiation aging resistance. A greater powder–liquid ratio led to the lower flexibility of joint sealants, but superior water resistance and ultraviolet radiation aging resistance.

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The study of an energy efficient cool white roof coating based on styrene acrylate copolymer and cement for waterproofing purpose—Part II: Mechanical and water impermeability properties

Cited by 35 publications

References 8 publications

Optimization of Composition of Waterproofing Material Based on Modified Fine-Grained Concrete

Optimization of Composition of Waterproofing Material Based on Modified Fine-Grained Concrete

Investigation of Composite Protective Coatings Coregulated by Core–Shell Structures and Graphene Oxide Interfaces

Effects of External Environments on the Fixed Elongation and Tensile Properties of the VAE Emulsion–Cement Composite Joint Sealant

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