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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. ...
Behaviour of cement composites with lightweight and heavyweight aggregates at high temperatures
(Budapest University of Technology and Economics, 2017-03-24)
This paper presents new results of the research of the influence
of individual input components done on the behaviour of cement
based composite materials exposed to high temperatures. A
new approach of this research lies ...
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. ...
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 ...
Cast Screws as Shear Anchors for Composite Slabs
(Elsevier, 2017-07-20)
Composite slabs consist of trapezoidal steel sheeting and concrete cover. The steel sheeting serves as both, a lost framework and a tension bearing member after hardening of concrete. The longitudinal shear between the ...
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 ...
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 ...
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 ...
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 ...
Deflection of an eccentric crack under mixed-mode conditions in an SCB specimen
(The Publishing Office of Czestochowa University of Technology, 2021-07-26)
Crack propagation under mixed-mode (I + II) conditions has been investigated in a semicircular disc where various levels of mixed-mode can be achieved by means of different geometry configurations. The research has been ...