Impact of Different Binders on the Roughness, Adhesion Strength, and Other Properties of Mortars with Expanded Cork

Barnat-Hunek, Danuta; Widomski, Marcin K.; Szafraniec, Małgorzata; Łagód, Grzegorz

doi:10.3390/ma11030364

Cited by 38 publications

(32 citation statements)

References 29 publications

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“…Determination of surface roughness and 2D topography was performed on the T8000 RC120-400 JENOPTIC device, Jena, Germany, similarly to the procedure described by Barnat-Hunek et al [30,31]. Measurements were carried out using a standard graphical user interface (GUI), enabling the calculation of all parameters of the considered roughness profiles, as well as an assessment of the geometrical features of aggregates.…”

Section: Methodsmentioning

confidence: 99%

Physical Properties of Mineral and Recycled Aggregates Used to Mineral-Asphalt Mixtures

2019

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This article presents test results and examines the possibilities of using aggregate from ceramic waste for mineral-asphalt mixtures. In addition, the mineral composition, physical and mechanical properties of aggregates from natural raw materials such as dolomite, granodiorite and waste ceramic aggregate (introduced as a partial substitute for the main aggregate) were analyzed. The shape of grains was examined by determining the shape and flatness index of aggregates, resistance to grinding and frost resistance. The tested properties have a direct impact on the durability of road surfaces. To this end, the adhesion of asphalt to the surface of the aggregates used was additionally determined. Determination of surface roughness and two-dimensional (2D) topography of tested aggregates was carried out. The aggregates microstructure examination, coupled with the energy-dispersive X-ray spectroscopy (EDS) analysis, was conducted to determine the morphology and texture of the aggregates as well as to identify the basic chemical components.

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Section: Methodsmentioning

confidence: 99%

Physical Properties of Mineral and Recycled Aggregates Used to Mineral-Asphalt Mixtures

2019

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“…In the case of residential multi-family buildings having no cooling system, the highest energy demand throughout the year is connected with meeting the heating requirements while maintaining thermal comfort in rooms. Increasingly stringent requirements related to the thermal insulation of wall barriers and efficiency of heating systems had been applied while designing new buildings [10][11][12][13][14][15]. In turn, the existing buildings, due to their energy intensity, underwent comprehensive thermal retrofitting [8,[16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Influence of Thermal Retrofitting on Annual Energy Demand for Heating in Multi-Family Buildings

2020

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The paper presented the analysis of heat consumption for heating in multi-family residential buildings before and after thermal retrofitting. The analysis involved four groups of buildings, i.e., 43 buildings in total, located in various localities, belonging to one weather station. The predicted level of energy savings resulting from thermal retrofitting was achieved from the energy audits. The actual heat consumption, following the calculation into so-called external standard conditions, was obtained based on the readouts from heat-meters. For each building, the values of heat consumption over the periods of 6–10 years were read. The performance measurements involved the periods before, during, and after thermal retrofitting. The following statistical tests were used for data analysis: Wilcoxon–Mann–Whitney, Shapiro–Wilk, Bartlett, ANOVA, Kruskal–Wallis, Dunn and Holm post-hoc. The performed analyses showed that the mean value of energy savings predicted by audits reached 38.5% when the real mean value of savings, achieved from heat-meters, equaled 30.3%. The annual energy demand factors for heating were calculated for final energy and non-renewable primary energy factors. It was established that most of the analyzed objects fulfilled the primary energy factor requirements found in the Polish technical and construction regulations, which were valid at the time of investment.

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“…and external factors (surrounding environment, stress characteristics, etc.) [6,7,8,9,10,11,12]. For cement mortar made of same materials, the mechanical properties are different when the material mixture ratio is different, and the mechanical properties of the specimens are also different when the loading path is different.…”

Section: Introductionmentioning

confidence: 99%

Uniaxial Compression Behavior of Cement Mortar and Its Damage-Constitutive Model Based on Energy Theory

Tan

Ning

et al. 2019

Materials

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The mechanical properties of mortar materials in construction are influenced both by their own proportions and external loads. The trend of the stress–strain curve in cracks compaction stage has great influence on the relationship between the strength and deformation of cement mortar. Uniaxial compression tests of mortar specimens with different cement–sand ratios and loading rates were carried out, and the stored and dissipated energies were calculated. Results indicated that the elastic modulus and strength of mortar specimens increase with the cement–sand ratio and loading rate. The energy dissipation shows good consistency with the damage evolution. When the loading rate is less than 1.0 mm/min, most of the constitutive energy at the peak point is stored in the specimen and it increase with cement–sand ratio. A simple representation method of axial stress in cracks compaction stage was proposed and an energy-based damage constitutive model—which can describe well the whole process of cement mortar under uniaxial compression—was developed and verified.

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Impact of Different Binders on the Roughness, Adhesion Strength, and Other Properties of Mortars with Expanded Cork

Cited by 38 publications

References 29 publications

Physical Properties of Mineral and Recycled Aggregates Used to Mineral-Asphalt Mixtures

Physical Properties of Mineral and Recycled Aggregates Used to Mineral-Asphalt Mixtures

Influence of Thermal Retrofitting on Annual Energy Demand for Heating in Multi-Family Buildings

Uniaxial Compression Behavior of Cement Mortar and Its Damage-Constitutive Model Based on Energy Theory

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