High temperature resistance of polymer-phosphazene concrete for 365 days

Tanyıldızı, Harun; Asiltürk, Erol

doi:10.1016/j.conbuildmat.2018.04.078

Cited by 13 publications

(3 citation statements)

References 19 publications

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“…They were then dried at 105 5 °C. The vinyl acetate monomer impregnated to specimens under atmospheric conditions for 24 hours (Tanyildizi, 2018a;TANYILDIZI, 2020;Tanyildizi & Asilturk, 2018a, 2018b. Then, the specimens were kept at 60 °C for 6 hours.…”

Section: Polymerizationmentioning

confidence: 99%

Investigation of mechanical properties of polymer impregnated concrete containing polypropylene fiber by taguchi and anova methods

Tanyıldızı

2021

rdlc

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The mechanical properties of polymer impregnated concrete containing polypropylene fiber were statistically and experimentally examined in this study. Taguchi L9 (33) was used in this study. The variables used for experiments were selected as the polypropylene fiber ratio (0%, 1% and 2%), cement dosage (300, 350 and 400 kg/m3) and curing time (7, 14 and 28 days). After the specimens were cured at the specified curing times, they were dried at 105 ±5 °C. Then, the monomer was impregnated to the specimens for 24 hours under atmospheric conditions. The samples for the polymerization of monomer was kept within the drying oven at 60 °C for 6 hours. The compressive strength and ultrasonic pulse velocity tests of specimens, in which polymerization was applied, was conducted. Furthermore, the dynamic modulus of elasticity of samples was calculated using the ultrasonic pulse velocity. The Taguchi analysis found that the best values for the ultrasonic pulse velocity, dynamic modulus of elasticity and compressive strength were 28 days for curing, 1% for the polypropylene fiber percentage and 400 kg/m3 for the cement dosage. The Anova analysis found that the polypropylene fiber percentage had the biggest effect on the mechanical properties of polymer impregnated concrete containing polypropylene fiber.

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Section: Polymerizationmentioning

confidence: 99%

Investigation of mechanical properties of polymer impregnated concrete containing polypropylene fiber by taguchi and anova methods

Tanyıldızı

2021

rdlc

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“…In practice, a variety of testing methods have been chosen to evaluate damaged concrete structures [ 3 , 4 ]. The UPV inspection method has been used frequently to detect damaged concrete, having the advantages of high precision and nondestruction of concrete structures [ 42 ]. Nevertheless, the area of a fire disaster is typically vast enough that it is inefficient to only use UPV detection.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Thermally Damaged Concrete under a Hygrothermal Environment by Using a Combined Infrared Thermal Imaging and Ultrasonic Pulse Velocity Method

et al. 2023

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This paper proposes a combined inspection method for thermally damaged concrete under a hygrothermal environment. Experiments were conducted to verify the feasibility of the proposed method. Concrete samples with different water–cement ratios (W/C = 0.3, 0.5, 0.7) and moisture contents (dried, 50% saturated, fully saturated) were exposed to elevated temperatures of 200 °C, 400 °C, 600 °C, and 800 °C for 4 h. After cooling to room temperature, infrared thermal imaging (IRT), ultrasonic pulse velocity (UPV) measurements, and mechanical tests were carried out for the damaged concrete samples. The mechanical behavior of thermally damaged concrete with different degrees of water saturation was examined based on mechanical testing. The results show that water can affect the compressive strength and UPV of concrete under certain circumstances, and the residual strength and the heating temperature of the thermally damaged concrete can be evaluated by IRT and UPV measurements. When 50% saturated concrete specimens with a W/C ratio of 0.3, 0.5, and 0.7 are exposed to 200 °C, 12.6%, 27.4%, and 34.6% increases in normalized compressive strength were observed before dropping to approximately 40% at 800 °C. With various moisture contents, the normalized compressive strength variation can be up to 40% at 400 °C in cases with W/C = 0.5 and 0.7. As for UPV, it generally decreases with the increase in moisture content when the peak temperature is 800 °C. On the contrary, whether concrete is saturated or not, there is little difference in temperature change in IRT detection. To obtain a more precise evaluation of concrete structures, IRT can be used to scan a large area to determine the damaged concrete area and areas suspected to be damaged, while UPV could be used to detect concrete members in suspected areas after the completion of IRT scanning.

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“…Recent studies shown that structures exposed to high temperature can be used the polymerphosphazene concrete. The filling of the voids with the polymer was ensured so that the physical binding of polymer molecules and strong adhesion of these molecules to each other was obtained (Tanyildizi & Asilturk, 2018). This strategy could greatly benefit future construction processes because fracture toughness and elasticity of brittle cementitious materials can be largely enhanced on the nanoscale.…”

Section: Introductionmentioning

confidence: 99%

Neural Controller for the Selection of Recycled Components in Polymer-Gypsy Mortars

Kłosowski

Klepka

Nowacka

2018

acs

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This study presents research on the development of an intelligent controller that allows optimal selection of rubber granules, as an admixture recycling component for polymer-gypsy mortars. Based on the results of actual measurements, neural networks capable of predicting the setting time of gypsum mortar, as well as determining the bending and compressive strength coefficients were trained. A number of simulation experiments were carried out, thanks to which the characteristics of setting times and strength of mortars containing different compositions of recycling additives were determined. Thanks to the obtained results, it was possible to select the rubber admixtures optimally both in terms of the percentage share as well as in relation to the diameter of the granules.

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High temperature resistance of polymer-phosphazene concrete for 365 days

Cited by 13 publications

References 19 publications

Investigation of mechanical properties of polymer impregnated concrete containing polypropylene fiber by taguchi and anova methods

Investigation of mechanical properties of polymer impregnated concrete containing polypropylene fiber by taguchi and anova methods

Experimental Study of Thermally Damaged Concrete under a Hygrothermal Environment by Using a Combined Infrared Thermal Imaging and Ultrasonic Pulse Velocity Method

Neural Controller for the Selection of Recycled Components in Polymer-Gypsy Mortars

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High temperature resistance of polymer-phosphazene concrete for 365 days

Cited by 13 publications

References 19 publications

Investigation of mechanical properties of polymer impregnated concrete containing polypropylene fiber by taguchi and anova methods

Investigation of mechanical properties of polymer impregnated concrete containing polypropylene fiber by taguchi and anova methods

Experimental Study of Thermally Damaged Concrete under a Hygrothermal Environment by Using a Combined Infrared Thermal Imaging and Ultrasonic Pulse Velocity Method

Neural Controller for the Selection of Recycled Components in Polymer-Gypsy Mortars

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High temperature resistance of polymer-phosphazene concrete for 365 days