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Mechanical Fracture and Fatigue Characteristics of Fine-Grained Composite Based on Sodium Hydroxide-Activated Slag Cured under High Relative Humidity
(MDPI, 2021-01-08)A typical example of an alternative binder to commonly used Portland cement is alkali-activated binders that have high potential as a part of a toolkit for sustainable construction materials. One group of these materials ... -
NDT Methods Suitable for Evaluation the Condition of Military Fortification Construction in the Field
(MDPI, 2020-11-18)The protective structure is designed to protect the live force against the impact of a shock wave and projectiles, it cannot be diagnosed by the destructive method which devalues the protective structure by sampling. The ... -
Testing the Influence of the Material Bonding System on the Bond Strength of Large-Format Tiles Installed on Concrete Substrate under Mechanical Loading
(MDPI, 2020-07-17)The paper describes an experiment focusing on the way the material system influences the bond strength of large-format tiles installed on concrete substrate during mechanical loading under conditions that correspond to ... -
Experimental Analysis on Shrinkage and Swelling in Ordinary Concrete
(Hindawi Publishing Corporation, 2017-05-22)The paper deals with the experimental determination of shrinkage development during concrete ageing. Three concrete mixtures were made. They differed in the amount of cement in the fresh mixture, 300, 350, and 400kg/m3. ... -
Freeze-thaw resistance of concrete with porous aggregate
(Elsevier Ltd., 2010-06-06)This paper deals with the influence of periodic freezing on lightweight concrete characteristics. Sets of lightweight concrete prismatic specimens are cyclically frozen in range from +20C to -20C and non-destructively ... -
Testing an Impedance Non-destructive Method to Evaluate Steel-Fiber Concrete Samples
(DE GRUYTER POLAND SP ZOO, 2018-03-01)Steel-fiber reinforced concrete is a composite material characterized by outstanding tensile properties and resistance to the development of cracks. The concrete, however, exhibits such characteristics only on the condition ... -
Evaluation of Selected Physicomechanical Properties of SFRC according to Different Standards
(Hindawi, 2018-05-14)Steel fiber reinforced concretes are currently very popular, especially in the construction of industrial floors of warehouses and other halls with relatively large floor areas. However, it is important to mention that ... -
Comprehensive Testing Techniques for the Measurement of Shrinkage and Structural Changes of Fine-Grained Cement-Based Composites during Ageing
(Hindawi Publishing Corporation, 2017-01-15)The paper deals with an experimental analysis focusing on the utilization of a specific measurement technique for determining the development of shrinkage and for monitoring structural changes in fine-grained cement-based ... -
Influence of freeze-thaw cycles on fracture parameters values of lightweight concrete
(Elsevier Ltd., 2010-06-06)Freezing and thawing resistance is very important characteristic also in the case of lightweight concrete. The paper deals with the influence of periodic freeze-thaw cycles on lightweight concrete fracture parameters values. ... -
Modelling of interfacial transition zone effect on resistance to crack propagation in fine-grained cement-based composites
(Italian Group of Fracture, 2017-07-03)In this paper, the attention is paid to investigation of the importance of the interfacial transition zone (ITZ) in selected fine-grained cement-based composites for the global fracture behaviour. This is a region of cement ... -
Characteristic Curve and Its Use in Determining the Compressive Strength of Concrete by the Rebound Hammer Test
(MDPI, 2019-08-23)During the construction of concrete structures, it is often useful to know compressive strength at an early age. This is an amount of strength required for the safe removal of formwork, also known as stripping strength. ... -
Multi-parameter fracture mechanics: crack path in a mixed-mode specimen
(Gruppo Italiano Frattura, 2019-07-02)A mixed-mode geometry has been chosen to investigate a crack propagation using the multi-parameter fracture mechanics concept. The socalled Williams’ series expansion is used for the crack-tip stress field approximation. ... -
Quality Control of the Anchoring of Steel Bridge Barriers by Non-Destructive Testing
(MDPI, 2020-01-07)Traffic barriers represent one of the basic road safety features. There are several types of traffic barriers based on the material from which they are made of and their location. Bridge structures are usually fitted with ... -
Cost-Effective High-Performance Concrete: Experimental Analysis on Shrinkage
(MDPI, 2019-08-26)This paper focuses on the experimental determination of the shrinkage process in Self-Compacting High-Performance Concrete (SCC HPC) exposed to dry air and autogenous conditions. Special molds with dimensions of 100 mm × ... -
Mechanical testing of newly developed biomaterial designed for intra-articular reinforcement of partially ruptured cranial cruciate ligament: ex vivo pig model
(University of Veterinary and Pharmaceutical Sciences in Brno, 2014-04-01)The study deals with mechanical testing of newly developed material polyethylene terephtalate coated with polycaprolactone nanofibers in combination with biodagradable Hexalon ACL/PCL screws as a new possibility of ... -
Components of the Fracture Response of Alkali-Activated Slag Composites with Steel Microfibers
(MDPI, 2019-05-16)Knowledge of the mechanical and primarily fracture parameters of composites with a brittle matrix is essential for the quantification of their resistance to crack initiation and growth, and also for the specification of ... -
Electrical and Self-Sensing Properties of Alkali-Activated Slag Composite with Graphite Filler
(MDPI, 2019-05-16)The electrical properties of concrete are gaining their importance for the application in building construction. In this study, graphite powder was added to alkali-activated slag mortar as an electrically conductive filler ... -
Using acoustic emission methods to monitor cement composites during setting and hardening
(MDPI AG, 2017-04-28)Cement-based composites belong among the basic building materials used in civil engineering. Their properties are given not only by their composition but also by their behaviour after mixing as well as by the methods of ... -
Sustainability assessment of concrete mixes
(IOP Publishing, 2020-02-04)Since concrete is one of the most important and useful materials in the construction sector, which, unfortunately, has an adverse impact on the environment, it is evident that correct procedures for designing and/or assessing ... -
Ultrasonic NDT determination of initial and final setting time of cement paste
(EDP Sciences, 2020-03-05)There are several methods for determination of the setting and early hardening in the cementitious composites. The most common method is using the Vicat apparatus. The major disadvantage of this method is that it is invasive ...
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