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X-RAY MICRO-TOMOGRAPHY CHARACTERIZATION OF VOIDS CAUSED BY THREE-POINT BENDING IN SELECTED ALKALI-ACTIVATED ALUMINOSILICATE COMPOSITE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
This paper deals with the pilot characterization of a special alkali-activated aluminosilicate composite composed of waste brick powder, brick rubble and a solution of potassium water glass. Fracture tests were conducted ...
INVERSE COMPUTATIONAL DETERMINATION OF JOHNSON-COOK PARAMETERS USING THE SHPB TEST APPARATUS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
The paper describes determination of the material parameters of the Johnson-Cook constitutive model of steel S235 JR sample material by applying the inverse computational methodology using the digital twin model of the ...
CUSTOM-MADE RHEOMETER FOR THE EXPERIMENTAL STUDY OF POLYURETHANE RESIN PU9010
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
Polyurethane resins are well-known examples in aerospace industry, electronics and automotive as an adhesive or coating because of their broad spectrum of properties. They are obtained by a process called curing, where in ...
EXPERIMENTAL INVESTIGATION AND SIMULATION OF 3D-PRINTED LATTICE STRUCTURES
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
Lattice structures are currently of high interest, especially for lightweight design. They generally have better structural performance per weight than parts made of bulk material. With conventional manufacturing techniques ...
Optimizing the acid resistance of concrete with granulated blast-furnace slag
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
Concrete structures exposed to high levels of chemical attacks are assigned to exposure class XA3, which recommends separate concrete protection or a special expert solution to ensure durability. Due to the partial ...
Axial behaviour of strengthened circular hollow reinforced concrete column with CFRP partial confinement
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
Circular hollow reinforced concrete column will experience deterioration due to many causes such as natural disaster, corrosion, low quality and others. Therefore, structural strengthening is required since replacing the ...
A study on properties of concrete with dry fly ash and fly ash slurry stored with stirring
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
In the evaluation of concrete sustainability, what constitutes "sustainable" to one region may vary from another. This often leads to methodological forms of uncertainties that makes the evaluation process more complex. ...
Study for re-ASR behaviour of recycled concrete using ASR generated concrete and considering countermeasure technology
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
It is predicted that the concrete volume to be discarded will increase due to the renewal of the concrete structures and the increase in the returned concrete from construction site. The use of this concrete block as ...
Lower bound analysis for shear assessment of full-scale RC girders subjected to axial tension
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
Axial tension force exerted as a result of a temperature change or shrinkage can cause the collapse of RC structural members. Design code provisions and analytical models such as Modified Compression Field Theory (MCFT) ...
Durability evaluation of surface softened steel bar for prestressed concrete
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
The effects of Si addition and surface softening on delayed fracture susceptibility were evaluated in tempered martensitic steels with tensile strength of 1450 MPa. The delayed fracture susceptibility was reduced when Si ...