Assessment Of The Casting Position Factor In Reinforced Concrete Elements In View Of Experimental Studies

Dybeł, Piotr; Furtak, Kazimierz

doi:10.2478/ace-2014-0014

Cited by 8 publications

(3 citation statements)

References 6 publications

(2 reference statements)

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“…The way of applying the concrete mix is also important. [18] The results of classic destructive strength tests do not enable this phenomenon to be observed. Non-destructive ultrasonic testing allows this, but it is extremely rare to conduct such tests in construction practice.…”

Section: Introductionmentioning

confidence: 99%

Functional and adhesive properties of cement-based overlays modified with amorphous silica nanospheres

Szymanowski

Sadowski

2019

The Journal of Adhesion

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In civil engineering, overlays should have appropriate strength and functional parameters. In order to obtain these parameters to the desired level, additional actions are applied in the form of dispersed reinforcement, surface hardening and impregnation. There is a lack of detailed results of studies on the impact of amorphous SiO 2 nanospheres contained in the cement mortar of the overlay in concrete floors on its bonding with the concrete substrate, as well as on its functional parameters. Considering the above, the article presents the results of research regarding the impact of amorphous SiO 2 nanospheres. It was also shown that the most favourable results (understood as lower abrasion resistance, higher subsurface tensile strength and a higher overlay hardness), when compared to the reference mortar, are achieved with the use of amorphous SiO 2 nanospheres in an amount of 0.5% in relation to the cement mass. This is confirmed by studies carried out using scanning electron microscopy, which confirmed that these improvements are due to the fact that the mortar with the addition of amorphous SiO 2 nanospheres in an amount of 0.5% of the cement mass is characterized by a lower ratio of pores within the range from 0.83 to 7.50 μm.

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Section: Introductionmentioning

confidence: 99%

Functional and adhesive properties of cement-based overlays modified with amorphous silica nanospheres

Szymanowski

Sadowski

2019

The Journal of Adhesion

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“…The experimental research [4][5][6] prove that the phenomenon itself of HPC bond and the mechanism of its loss does not change compared with normal concretes. Neither do the factors affecting the bond although their individual contribution may vary what causes that the result of tests performed for normal concrete cannot be transferred directly to HPC.…”

Section: Previous Investigationsmentioning

confidence: 99%

The effect of ribbed reinforcing bars location on their bond with high-performance concrete

Dybeł¹,

Furtak²

2015

Archives of Civil and Mechanical Engineering

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“…The tensile strength, drying shrinkage, elastic modulus, and tensile relaxation of the overlay are affected to a great extent by curing conditions [57,[95][96][97]. It was also reported that the properties of concrete may be affected by the manner of casting [98][99][100]. The next method of improving overlay functional properties is surface hardening.…”

Section: Overview Of Recent Activities Used To Improve the Functionalmentioning

confidence: 99%

Evaluation of the Adhesion between Overlays and Substrates in Concrete Floors: Literature Survey, Recent Non-Destructive and Semi-Destructive Testing Methods, and Research Gaps

Szymanowski

2019

Buildings

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Non-destructive testing (NDT) and semi-destructive testing (SDT) have recently been more frequently used for the evaluation and condition assessment of concrete floors in various types of buildings. The subject of the article is to briefly introduce the reader to the problem of adhesion between overlays and substrates in concrete floors and to illustrate the current state of knowledge on the subject. The aim of this paper was to briefly describe the recently used non-destructive and semi-destructive testing methods and the parameters useful for characterizing the adhesion between overlays and substrates in concrete floors, as well as the methods useful to characterize the functional properties of the overlays. A recent literature survey, related to the adhesion between the overlays and substrates in concrete floors, is thus shown. Special emphasis was placed on the critical review of the current research results. Based on the analysis of the literature review, research gaps have been presented in order to highlight future research directions.

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Assessment Of The Casting Position Factor In Reinforced Concrete Elements In View Of Experimental Studies

Cited by 8 publications

References 6 publications

Functional and adhesive properties of cement-based overlays modified with amorphous silica nanospheres

Functional and adhesive properties of cement-based overlays modified with amorphous silica nanospheres

The effect of ribbed reinforcing bars location on their bond with high-performance concrete

Evaluation of the Adhesion between Overlays and Substrates in Concrete Floors: Literature Survey, Recent Non-Destructive and Semi-Destructive Testing Methods, and Research Gaps

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