Abrasion Resistance of Concrete Containing Selected Mineral Powders

Popek, Mateusz; Sadowski, Łukasz; Szymanowski, J.

doi:10.1016/j.proeng.2016.08.209

Cited by 23 publications

(8 citation statements)

References 14 publications

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“…In recent years, it has been shown that the use of additives in the form of metakaolin, carbon fibers, magnesium phosphate, volcanic ash, and fly ash in the cement mortar overlay improves its bonding to the concrete substrate. It can also be found in literature that the use of, among others, mineral powder, polypropylene fibers, waste ceramic additives, basalt pumice, and steel and copper fibers [19][20][21][22] as an additive to mortar and concrete aims to improve their abrasiveness. The literature indicates that the modification of the cement mortar composition of the overlay with the addition of amorphous silica (SiO 2 ) nanospheres may increase its bond with the concrete substrate, and at the same time also improve its functional parameters.…”

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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“…), polypropylene fibers, and metallic fibers [101][102][103][104][105] have been found to especially increase the abrasion resistance of the surface of concrete and mortar. The method of finishing and modifying the overlay material with micro/nano materials not only affects the abrasion resistance [106][107][108][109][110][111][112][113][114], but also different special properties such as aging resistance in high temperatures, self-cleaning, air purification, de-icing salt resistance or freeze/thaw resistance [115][116][117][118][119]. Impregnation of the surface of the overlay by different coatings (e.g., epoxy, acrylic, polyurethane, cementitious, polymer/clay nanocomposites) can increase its durability, as well as improve many functional parameters such as adhesive resistant, chemical resistance, chloride permeability, hardness, impermeability, abrasion resistance, heat resistance, shrinkage, etc.…”

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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“…In industrial concrete formed horizontally, the surface of the floor is the most important [ 4 ]. The durability of the overlay is strongly related to the properties of the concrete that was used to execute the floor [ 3 , 5 ]. To prevent any defects and damage, the concrete mix should be specially designed and investigated.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Steel and Polypropylene Fibers on the Properties of Horizontally Formed Concrete

Chajec

Sadowski

2020

Materials

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The article presents a comparative analysis of the impact of the addition of steel and polypropylene fibers on the properties of the concrete mixes and hardened concrete used in the concrete floor industry. The behavior of concrete intended for floors is different from conventional structural concrete because it is formed horizontally; until now, the effect of steel and polypropylene fibers on the properties of concrete formed horizontally has not yet been fully understood. Therefore, the aim of this article is to examine this issue and compare the behavior of concrete modified with steel and polypropylene fibers in concrete that is formed horizontally. The following properties of fresh concrete mixes were analyzed: consistency, the content of air-voids, and bulk density. Consequently, the following properties of hardened concrete were analyzed: compressive strength, bending tensile strength, and brittleness. It was confirmed that steel and polypropylene fibers have a different type of effect on the properties of fresh concrete mixes and hardened concrete. Finally, a combined economic and mechanical analysis was performed.

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Abrasion Resistance of Concrete Containing Selected Mineral Powders

Cited by 23 publications

References 14 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

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

The Effect of Steel and Polypropylene Fibers on the Properties of Horizontally Formed Concrete

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