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Jacek Góra
Faculty of Civil Engineering and Architecture, Lublin University of Technology, Nadbystrzycka 40, 20-618 Lublin, Poland

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Correction
Published: 29 January 2021 in Materials
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The authors wish to revise in the main body text of 2

ACS Style

Danuta Barnat-Hunek; Jacek Góra; Marcin Widomski. Correction: Barnat-Hunek, D., et al. Durability of Hydrophobic/Icephobic Coatings in Protection Lightweight Concrete with Waste Aggregate. Materials 2021, 14, 101. Materials 2021, 14, 620 .

AMA Style

Danuta Barnat-Hunek, Jacek Góra, Marcin Widomski. Correction: Barnat-Hunek, D., et al. Durability of Hydrophobic/Icephobic Coatings in Protection Lightweight Concrete with Waste Aggregate. Materials 2021, 14, 101. Materials. 2021; 14 (3):620.

Chicago/Turabian Style

Danuta Barnat-Hunek; Jacek Góra; Marcin Widomski. 2021. "Correction: Barnat-Hunek, D., et al. Durability of Hydrophobic/Icephobic Coatings in Protection Lightweight Concrete with Waste Aggregate. Materials 2021, 14, 101." Materials 14, no. 3: 620.

Journal article
Published: 29 December 2020 in Materials
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The aim of the research presented in this paper is to evaluate the feasibility of using hydrophobic agents based on organosilicon compounds for surface protection of lightweight concrete modified with waste polystyrene. The experimental part pertains to the physical and mechanical properties of polystyrene-modified lightweight concrete. The concrete samples were prepared with the following ingredients: CEM I 42.5 R cement, recycled polystyrene (0–2 mm), quartz sand (0–2 mm), coarse river aggregate (2–16 mm), and water. Silane and tetramethoxysilane were employed for surface hydrophobization. Concrete with 20% polystyrene exhibits high porosity (25.22%), which is related to an increase in absorptivity (14.75%) compared to the reference concrete. The hydrophobized concrete is characterized by the lowest surface free energy (SFE) value, which is 7 or 11 times lower than the value of reference concrete, depending on the agents. The test on the contact angle (CA) was performed before and after the frost-resistance test (F–T test). Lower SFE translates into lower adhesive properties, higher resistance of the material to the infiltration of water and corrosive compounds, e.g., salts, and higher resistance to freezing and thawing cycles. Silane and tetramethoxysilane coating raised frost resistance by 54–58% compared to the reference samples. This agent reduced absorptivity by 30%. Recycled polystyrene can be successfully used to produce lightweight concrete (LC) with high durability provided by hydrophobic/icephobic coatings.

ACS Style

Danuta Barnat-Hunek; Jacek Góra; Marcin K. Widomski. Durability of Hydrophobic/Icephobic Coatings in Protection of Lightweight Concrete with Waste Aggregate. Materials 2020, 14, 101 .

AMA Style

Danuta Barnat-Hunek, Jacek Góra, Marcin K. Widomski. Durability of Hydrophobic/Icephobic Coatings in Protection of Lightweight Concrete with Waste Aggregate. Materials. 2020; 14 (1):101.

Chicago/Turabian Style

Danuta Barnat-Hunek; Jacek Góra; Marcin K. Widomski. 2020. "Durability of Hydrophobic/Icephobic Coatings in Protection of Lightweight Concrete with Waste Aggregate." Materials 14, no. 1: 101.

Short communication
Published: 29 September 2020 in Case Studies in Construction Materials
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The aim of this study was to determine the impact of mechanical properties of aggregates on ordinary and high performance concretes with these aggregates. Research included aggregate crushing resistance and mechanical properties of 24 concretes with: basalts, granites, granodiorite, dolomite, quartzite, gravels from 13 Polish and Ukrainian mines. Properties of concretes are consistent with aggregate strength. The strongest impact of aggregate crushing resistance on concrete modulus of elasticity was found. A similar strong impact applies to tensile strength of concretes, while effect of crushing resistance on compressive strength of concretes was just moderate.

ACS Style

Jacek Góra; Wojciech Piasta. Impact of mechanical resistance of aggregate on properties of concrete. Case Studies in Construction Materials 2020, 13, e00438 .

AMA Style

Jacek Góra, Wojciech Piasta. Impact of mechanical resistance of aggregate on properties of concrete. Case Studies in Construction Materials. 2020; 13 ():e00438.

Chicago/Turabian Style

Jacek Góra; Wojciech Piasta. 2020. "Impact of mechanical resistance of aggregate on properties of concrete." Case Studies in Construction Materials 13, no. : e00438.

Journal article
Published: 05 June 2020 in Applied Sciences
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Depending on the dimensions of concrete elements, aggregates of different grain sizes are used for the building structures. Taking this fact into account, the authors of the paper have undertaken in their work an issue concerning the analysis of the influence of maximum aggregate grain size on the strength properties and modulus of elasticity of concrete. This is also due to the fact that few published research results are available in this area. In this paper, the influence of the maximum grain size on the basic strength and deformation properties of concrete is discussed. The research concerns both concretes and gravel aggregates used for their construction with maximum grain sizes of 8 mm, 16 mm and 31.5 mm. The values of the compressive and splitting tensile strength, brittleness and modulus of elasticity of concretes with w/c = 0.45 were analysed. The analysis showed that the strength properties are proportional not only to the maximum size of aggregate grain, but also to the crushing strength of the aggregate. There were no analogous relations found with respect to the modulus of elasticity of the tested concretes. Tensile strength was particularly susceptible to the observed changes.

ACS Style

Jacek Góra; Małgorzata Szafraniec. Influence of Maximum Aggregate Grain Size on the Strength Properties and Modulus of Elasticity of Concrete. Applied Sciences 2020, 10, 1 .

AMA Style

Jacek Góra, Małgorzata Szafraniec. Influence of Maximum Aggregate Grain Size on the Strength Properties and Modulus of Elasticity of Concrete. Applied Sciences. 2020; 10 (11):1.

Chicago/Turabian Style

Jacek Góra; Małgorzata Szafraniec. 2020. "Influence of Maximum Aggregate Grain Size on the Strength Properties and Modulus of Elasticity of Concrete." Applied Sciences 10, no. 11: 1.

Journal article
Published: 21 October 2019 in Materials
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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.

ACS Style

Wojciech Andrzejuk; Danuta Barnat-Hunek; Jacek Góra. Physical Properties of Mineral and Recycled Aggregates Used to Mineral-Asphalt Mixtures. Materials 2019, 12, 3437 .

AMA Style

Wojciech Andrzejuk, Danuta Barnat-Hunek, Jacek Góra. Physical Properties of Mineral and Recycled Aggregates Used to Mineral-Asphalt Mixtures. Materials. 2019; 12 (20):3437.

Chicago/Turabian Style

Wojciech Andrzejuk; Danuta Barnat-Hunek; Jacek Góra. 2019. "Physical Properties of Mineral and Recycled Aggregates Used to Mineral-Asphalt Mixtures." Materials 12, no. 20: 3437.

Journal article
Published: 11 September 2019 in Materials
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The paper presents the possibility of using the liquid crystal display (LCD) waste as a partial substitute of fine aggregate. Concretes with two types of cement, CEM I 42.5 R and CEM II/B-S 42.5 N, with and without LCD addition, were investigated. The properties that influence the structures exposed to severe environments were examined. The results and analyses pertaining to their micro-structure, including interfacial transition zone (ITZ), were presented as well. All concretes exhibited good freeze–thaw (F–T) resistance after 150 F–T cycles. The water-tightness was established as 0.8 MPa. All concretes both with and without LCD achieved the same class C50/60.

ACS Style

Jacek Góra; Małgorzata Franus; Danuta Barnat-Hunek; Wojciech Franus. Utilization of Recycled Liquid Crystal Display (LCD) Panel Waste in Concrete. Materials 2019, 12, 2941 .

AMA Style

Jacek Góra, Małgorzata Franus, Danuta Barnat-Hunek, Wojciech Franus. Utilization of Recycled Liquid Crystal Display (LCD) Panel Waste in Concrete. Materials. 2019; 12 (18):2941.

Chicago/Turabian Style

Jacek Góra; Małgorzata Franus; Danuta Barnat-Hunek; Wojciech Franus. 2019. "Utilization of Recycled Liquid Crystal Display (LCD) Panel Waste in Concrete." Materials 12, no. 18: 2941.

Conference paper
Published: 14 January 2019 in MATEC Web of Conferences
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The article presents the results of testing physical and strength properties of concrete with the addition of lightweight perlite in the amount of 10 and 20%. The additive was introduced by volume substituting a part of the sand. In addition, the effect of using siloxane admixtures and a vinyl acetate copolymer with different degree of dosing, as well as applied simultaneously, were analysed. The tests were carried out in the field of bulk density and proper density, determination of tightness and porosity, compressive strength and tensile strength after 28 days of maturation. In terms of durability of concrete, absorption and resistance of concretes to the freeze-up effects after 100 freezing and thawing cycles were tested. The results of the study were subjected to statistical analysis using the analysis of variance. The analysed factors of influence were the amount of perlite addition, as well as the type and amount of the added admixture

ACS Style

Jacek Góra; Danuta Barnat-Hunek; Paweł Wlaź; Monika Garbacz. The analysis of influence of polymer admixtures on properties of lightweight concrete. MATEC Web of Conferences 2019, 252, 08007 .

AMA Style

Jacek Góra, Danuta Barnat-Hunek, Paweł Wlaź, Monika Garbacz. The analysis of influence of polymer admixtures on properties of lightweight concrete. MATEC Web of Conferences. 2019; 252 ():08007.

Chicago/Turabian Style

Jacek Góra; Danuta Barnat-Hunek; Paweł Wlaź; Monika Garbacz. 2019. "The analysis of influence of polymer admixtures on properties of lightweight concrete." MATEC Web of Conferences 252, no. : 08007.

Journal article
Published: 27 June 2018 in Materials
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The purpose of this paper is to determine the influence of the lightweight porous perlite aggregate and two widely used types of fibres on the physical and mechanical properties, frost durability and microstructure of self-compacting lightweight concrete (SCLC). The experimental investigation consisted of tests carried out on cubes and prismatic samples made of SCLC and fibres-reinforced SCLC with variable content ranging from 0.5 to 1% of basalt fibres (BF) and/or 0.5% of steel fibres (SF). In this study, two variable contents of fine perlite aggregate were used: 5% and 15%. The workability (the slump-flow and t500 values) in fresh state SCLCs have been done. Extensive data on compressive and flexural tensile strength in bending behaviour, frost resistance and the microstructure including interfacial transition zone (ITZ) were recorded and analysed. The hybrid fibres-reinforced SCLC with perlite aggregate showed a more ductile behaviour compared to that of SCLC without fibres. Fibres bridge cracks during flexural tensile strength test. BF successfully protected porous SCLC against frost attack, whereas SF succumbed to damage.

ACS Style

Danuta Barnat-Hunek; Jacek Góra; Wojciech Andrzejuk; Grzegorz Łagód. The Microstructure-Mechanical Properties of Hybrid Fibres-Reinforced Self-Compacting Lightweight Concrete with Perlite Aggregate. Materials 2018, 11, 1093 .

AMA Style

Danuta Barnat-Hunek, Jacek Góra, Wojciech Andrzejuk, Grzegorz Łagód. The Microstructure-Mechanical Properties of Hybrid Fibres-Reinforced Self-Compacting Lightweight Concrete with Perlite Aggregate. Materials. 2018; 11 (7):1093.

Chicago/Turabian Style

Danuta Barnat-Hunek; Jacek Góra; Wojciech Andrzejuk; Grzegorz Łagód. 2018. "The Microstructure-Mechanical Properties of Hybrid Fibres-Reinforced Self-Compacting Lightweight Concrete with Perlite Aggregate." Materials 11, no. 7: 1093.

Journal article
Published: 01 January 2018 in Architecture, Civil Engineering, Environment
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ACS Style

Wojciech Piasta; Waldemar Budzyński; Jacek Góra. PROPERTIES OF COARSE MINERAL AGGREGATES AGAINST PROPERTIES OF CONCRETE. Architecture, Civil Engineering, Environment 2018, 11, 97 -105.

AMA Style

Wojciech Piasta, Waldemar Budzyński, Jacek Góra. PROPERTIES OF COARSE MINERAL AGGREGATES AGAINST PROPERTIES OF CONCRETE. Architecture, Civil Engineering, Environment. 2018; 11 (3):97-105.

Chicago/Turabian Style

Wojciech Piasta; Waldemar Budzyński; Jacek Góra. 2018. "PROPERTIES OF COARSE MINERAL AGGREGATES AGAINST PROPERTIES OF CONCRETE." Architecture, Civil Engineering, Environment 11, no. 3: 97-105.

Book chapter
Published: 01 January 2018 in Waste and Supplementary Cementitious Materials in Concrete
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ACS Style

Danuta Barnat-Hunek; Jacek Góra; Zbigniew Suchorab; Grzegorz Łagód. Cement kiln dust. Waste and Supplementary Cementitious Materials in Concrete 2018, 149 -180.

AMA Style

Danuta Barnat-Hunek, Jacek Góra, Zbigniew Suchorab, Grzegorz Łagód. Cement kiln dust. Waste and Supplementary Cementitious Materials in Concrete. 2018; ():149-180.

Chicago/Turabian Style

Danuta Barnat-Hunek; Jacek Góra; Zbigniew Suchorab; Grzegorz Łagód. 2018. "Cement kiln dust." Waste and Supplementary Cementitious Materials in Concrete , no. : 149-180.

Journal article
Published: 01 October 2017 in Construction and Building Materials
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ACS Style

Wojciech Piasta; Jacek Góra; Waldemar Budzyński. Stress-strain relationships and modulus of elasticity of rocks and of ordinary and high performance concretes. Construction and Building Materials 2017, 153, 728 -739.

AMA Style

Wojciech Piasta, Jacek Góra, Waldemar Budzyński. Stress-strain relationships and modulus of elasticity of rocks and of ordinary and high performance concretes. Construction and Building Materials. 2017; 153 ():728-739.

Chicago/Turabian Style

Wojciech Piasta; Jacek Góra; Waldemar Budzyński. 2017. "Stress-strain relationships and modulus of elasticity of rocks and of ordinary and high performance concretes." Construction and Building Materials 153, no. : 728-739.

Journal article
Published: 01 November 2016 in Construction and Building Materials
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ACS Style

Wojciech Piasta; Jacek Góra; Tadeusz Turkiewicz. Properties and durability of coarse igneous rock aggregates and concretes. Construction and Building Materials 2016, 126, 119 -129.

AMA Style

Wojciech Piasta, Jacek Góra, Tadeusz Turkiewicz. Properties and durability of coarse igneous rock aggregates and concretes. Construction and Building Materials. 2016; 126 ():119-129.

Chicago/Turabian Style

Wojciech Piasta; Jacek Góra; Tadeusz Turkiewicz. 2016. "Properties and durability of coarse igneous rock aggregates and concretes." Construction and Building Materials 126, no. : 119-129.

Journal article
Published: 11 June 2014 in Budownictwo i Architektura
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Test results concern modulus of elasticity and compressive strength of ordinary concretes made of various coarse aggregates from igneous rocks. Test results of some properties of these aggregates (3 crushed granites, 3 basalts, granodiorite, natural gravel) are also considered. The variable factor of the studies is the type of coarse aggregate. According to the analyses of regression and correlation there occurs a significant effect of the aggregate grinding ratio on the modulus of elasticity of concretes contrary to insignificant effect of the compressive strength. The modulus of elasticity of 4 concretes from Polish and Ukrainian granites and basalt aggregates is lower than respective standard values of the modulus.

ACS Style

Waldemar Budzyński; Jacek Góra; Wojciech Piasta; Tadeusz Turkiewicz. Modulus of Elasticity of Concretes from Polish and Ukrainian Crushed Aggregates from Igneous Rocks. Budownictwo i Architektura 2014, 13, 065 -072.

AMA Style

Waldemar Budzyński, Jacek Góra, Wojciech Piasta, Tadeusz Turkiewicz. Modulus of Elasticity of Concretes from Polish and Ukrainian Crushed Aggregates from Igneous Rocks. Budownictwo i Architektura. 2014; 13 (2):065-072.

Chicago/Turabian Style

Waldemar Budzyński; Jacek Góra; Wojciech Piasta; Tadeusz Turkiewicz. 2014. "Modulus of Elasticity of Concretes from Polish and Ukrainian Crushed Aggregates from Igneous Rocks." Budownictwo i Architektura 13, no. 2: 065-072.

Journal article
Published: 02 December 2011 in Budownictwo i Architektura
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High performance concretes were tested to find an effect of the three different coarse aggregates (basalt, granite and dolomite) on concrete strength properties. All the results were analyzed statistically. Splitting tensile strength of high performance concrete with dolomite aggregate was significantly higher than that of concretes with basalt and granite aggregate. The effect of dolomite aggregate on compressive strength of HPC was much more advantageous than that of granite aggregate.

ACS Style

Jacek Góra. Strength properties of high-performance concretes with carbonate coarse aggregate. Budownictwo i Architektura 2011, 9, 069 -076.

AMA Style

Jacek Góra. Strength properties of high-performance concretes with carbonate coarse aggregate. Budownictwo i Architektura. 2011; 9 (2):069-076.

Chicago/Turabian Style

Jacek Góra. 2011. "Strength properties of high-performance concretes with carbonate coarse aggregate." Budownictwo i Architektura 9, no. 2: 069-076.

Journal article
Published: 02 December 2011 in Budownictwo i Architektura
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The test results presented concern high performance concretes of the w/c ratio 0,28. There have been examined the modulus of elasticity, Poisson’s ratio and limiting strain at the highest compressive stress. The variable factor in the studies is the type of coarse aggregate: crushed basalt, dolomite and granite. The results of the research have been tested statistically – the one-way ANOVA and the LSD test. There is stated the significant influence of aggregate on the tested deformation properties of high performance concretes.

ACS Style

Jacek Góra. Instantaneous deformability of high performance concretes with crushed aggregates. Budownictwo i Architektura 2011, 9, 077 -085.

AMA Style

Jacek Góra. Instantaneous deformability of high performance concretes with crushed aggregates. Budownictwo i Architektura. 2011; 9 (2):077-085.

Chicago/Turabian Style

Jacek Góra. 2011. "Instantaneous deformability of high performance concretes with crushed aggregates." Budownictwo i Architektura 9, no. 2: 077-085.