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Destructive and non-destructive assessment of the frost resistance of concrete with different aggregate
(IOP Publishing, 2018-07-12)The paper focuses on determining the frost resistance of concrete using selected destructive and non-destructive test methods. The experiment was performed with four specially made concretes, which differed only in the ... -
Fracture properties of concrete specimens made from alkali activated binders.
(IOP Publishing, 2017-09-15)The aim of this paper is to quantify crack initiation and other fracture properties – effective fracture toughness and specific fracture energy – of two types of concrete with an alkali activated binder. The beam specimens ... -
Fracture parameters of fine-grained composites based on the alkali-activated slag
(IOP Publishing, 2018-07-12)The paper deals with the experimental determination of fracture parameters of the composites based on the alkali-activated slag (AAS) at different ages. The main aim of the experimental investigation was to verify the ... -
Fracture response of alkali-activated slag mortars reinforced by carbon fibres
(IOP Publishing, 2018-07-12)The paper reports a study of the effect of carbon fibres on the mechanical fracture parameters of alkali-activated slag mortars. The carbon fibres were added in the amount of 1, 2 and 3%, respectively with respect to the ... -
The bond strength by pull-off and direct tensile strength of concrete damaged by elevated temperatures
(IOP Publishing, 2018-07-16)This paper presents the results of an experimental study of selected characteristics of concrete following its exposure to high temperatures. The monitored parameter was the influence of high temperatures on the bond ... -
Properties of concrete intended for further testing measured by the Impact-Echo and the ultrasonic pulse method
(IOP Publishing, 2018-07-16)The aim of the paper is non-destructive measurement of differently degraded specimens by high temperature intended for further testing of joints of stainless steel helical reinforcement glued into the groove and differently ... -
Differences in the accuracy of test methods in the field of testing aggregate and determination of their causes
(IOP Publishing, 2018-07-16)The article is based on the authors’ many years of experience in providing laboratory proficiency testing including organization of proficiency testing by interlaboratory comparison. In the introduction are compared the ... -
Early-age behaviour of cement-based self-leveling flooring compounds
(IOP Publishing, 2018-07-16)The article deals with the cement-based flooring compounds, especially with the behaviour during the early solidification process. A touch-less laser sensor and a cone-shaped mould were used for the measurement of the ... -
Measurement and evaluation proposal of early age shrinkage of cement composites using shrinkage-cone
(IOP Publishing, 2018-07-12)The paper deals with an experimental analysis focused on the determination and evaluation of the early age shrinkage strain using Shrinkage-Cone. The measurements were performed on the cement pastes and mortars with a ... -
Experimental evaluation of the effect of carbon fibres on acoustic emission parameters obtained during compressive strength tests of alkaliactivated slag composites
(IOP Publishing, 2018-07-12)The generation of acoustic emission signals is directly associated with formation of cracks in materials during loading. This paper deals with possibilities of acoustic emission method application as the tool for the ... -
Permeation and diffusion tests for estimation of durability of fibreconcretes with dense aggregate and recycled concrete
(IOP Publishing, 2018-07-16)Mechanical and deformational properties of concrete are markedly improved by the addition of long structural fibres. This addition, however, not always improves the durability of concrete. One important factor for an ... -
Experimental determination of the initial compressive strength of concrete using a rebound test hammer
(IOP Publishing, 2018-07-16)This paper deals with rebound hammer testing of concrete in the early stage of ageing. Six types of concrete were produced for the purpose of the presented experiment and differed in the water/cement ratio and were otherwise ... -
Study of a different carbonation intensity on the internal surface of cracks and inside concretes with dense aggregate and concrete recyclate
(IOP Publishing, 2018-07-16)The paper focuses on the experimental physical-chemical analysis of different carbonation intensity by TG/DTG and FTIR method on the selected surfaces of concretes with aggregate and with concrete recyclate, with and without ... -
Determining reinforcement coverage using an electromagnetic rebar detector
(IOP Publishing, 2018-07-16)Correct reinforcement is an essential part of constructing reinforced concrete structures. Errors in positioning, diameter, or coverage may result in defects, which is why it is necessary to make sure the reinforcement is ... -
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 ... -
Methodology for the quantification of concrete sustainability
(EDP Sciences, 2018-06-26)LCA is a method that evaluates the life cycle of a structure from the point of view of its impact on the environment. Consideration is given also to energy and raw material costs, as well as to environmental impact throughout ... -
Detection of reinforcement in the non-traditional building structures - historical statues
(IOP Publishing, 2018-07-16)During restoration and maintenance of historical buildings, statues and sculptures are often neglected elements in the pre-construction condition surveys, especially in case they are not part of the supporting structure ... -
Experimental assessment of steel fibre reinforced concretes with different concentrations of fibres
(IOP Publishing, 2018-07-16)At present, steel fiber reinforced concrete can be classified as a composite material commonly used for load-bearing building structures. Adding steel fibers to fresh mixture improves its mechanical properties in comparison ... -
Possibilities and pitfalls of revitalizing the timber structure of an industrial building from the 19th century from the viewpoint of diagnosis
(IOP Publishing, 2018-07-16)A typical feature of contemporary cities is the permanent shortage of land suitable for residential development inside the city. This leads to attempts in recent years to re-use the so-called Brownfields which have the ... -
Rock Joint Asperities and Mechanical Strength of Concrete
(IOP Publishing, 2017-11-28)Mechanical interactions between concrete foundations of large civil engineering structures (tunnels, bridges or dams) and the asperity surfaces of rock masses represent a useful topic for investigation. It is obvious that ...
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