Influence of Curing Condition on Film Formation of Polymer-Cement Waterproofing Membrane

Takada, Masayuki; Kokami, Yoshinobu; Tanaka, Kyoji

doi:10.3130/aijs.75.1057

Cited by 5 publications

(3 citation statements)

References 4 publications

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“…With an increase in the polymer fraction, the inorganic components and the voids inside the material are wrapped and filled by the polymer film, which obviously improves the tensile and adhesive performances of the material. The FPCC materials are mainly used as a waterproofing coating and a sealant material [16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Tensile Properties of a Flexible Polymer-Cement Composite Containing Portland Cement and Vae Emulsion

Bai¹

2019

Ceramics - Silikaty

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The aim of this paper is to investigate the tensile properties of a flexible polymer-cement composite (FPCC) which was mainly prepared by vinyl acetate-ethylene copolymer emulsion and Portland cement. An orthogonal experiment design was used to investigate the effects of the powder-emulsion ratio, the cement ratio and the filler type on the basic tensile indicators including the elastic recovery ratio, the tensile strength, the critical tensile strain, the tensile modulus and the elongation at the break. The results indicate that the major influence factors for the tensile properties of the FPCC are the powder-emulsion ratio and the cement ratio. With an increase in these two parameters, the tensile strength and the tensile modulus increase and the elastic recovery ratio, the critical tensile strain and the elongation at the break decrease. Furthermore, for the tensile strength and the tensile modulus, the influence of the cement ratio is more significant than the powder-emulsion ratio, and this is reversed for the case of the elastic recovery ratio, the critical tensile strain and the elongation at the break. The effect of the filler type on the FPCC is far less than the other two factors although its F test results are significant. An FPCC added with ground calcium carbonate exhibits a relatively higher tensile strength and tensile modulus. An FPCC added with a quartz powder has a better deformation ability.

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Section: Introductionmentioning

confidence: 99%

Tensile Properties of a Flexible Polymer-Cement Composite Containing Portland Cement and Vae Emulsion

Bai¹

2019

Ceramics - Silikaty

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Section: Materials and Preparationmentioning

confidence: 99%

“…This type of cement has a density and particle diameter of 3.16 g/cm 3 and ≤ 150 μm. An ethylene-vinyl acetate copolymer (powder) was used as the polymer component; its density is approximately 1.0 g/cm 3 when hardened. Test pieces were prepared with four polymer-to-cement ratios (mass ratio, hereafter referred to as P/C) of 25, 50, 100, and 200 %, as shown in Table 1.…”

Section: Materials and Preparationmentioning

confidence: 99%

Microstructural Observation and Simulation of Polymer Cement Waterproofing Membrane

Takada

Tanaka

2012

Int. J. Mod. Phys. Conf. Ser.

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A polymer-modified cement waterproofing membrane is formed by simultaneous cement hydration and polymer film formation, these rates are affected by the moisture content of the polymer emulsion used. The moisture content gradually decreases due to cement hydration and evaporation from the surface. This study focused on the changes caused in the waterproof layer by differences in the moisture environment. Four test pieces with different cement, polymer, and moisture contents were prepared and cured at 20 ºC and relative humidities of 25, 60, and 98 %. The basic physical properties of the test pieces were studied in tensile tests; the structures were observed using an EPMA. Furthermore a simulation was carried out using a model that considers cement hydration, polymer film formation, and moisture evaporation rate. The simulation results well reproduced the experimental results.

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Effects of Material Separation of Polye-Modified Cement Waterproofing Membranes on Fatigue Resistance of Joint at Substrate

Takada

Nakamori²,

Ueda

et al. 2021

Nihon Kenchiku Gakkai Kozokei Ronbunshu

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In this study, the relationship between the microstructure and fatigue resistance of joint at substrate of polymer modified cement waterproofing membrane (PCWM) were investigated. PCWM was applied on the substrate slate plate. And cracks were generated in the substrate, which were then expanded and contracted to produce movement. The higher the elongation rate of PCWM, tended to increase the fatigue resistance. In the case where the non-uniformity PCWM, the fatigue resistance was reduced. On the other hand, even in the case of large P/C and deterioration by weathering, if the material was homogeneous, it retained good fatigue resistance.

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Influence of Curing Condition on Film Formation of Polymer-Cement Waterproofing Membrane

Cited by 5 publications

References 4 publications

Tensile Properties of a Flexible Polymer-Cement Composite Containing Portland Cement and Vae Emulsion

Tensile Properties of a Flexible Polymer-Cement Composite Containing Portland Cement and Vae Emulsion

Microstructural Observation and Simulation of Polymer Cement Waterproofing Membrane

Effects of Material Separation of Polye-Modified Cement Waterproofing Membranes on Fatigue Resistance of Joint at Substrate

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