Fabric-reinforced cementitious matrix: A promising strengthening technique for concrete structures

Awani, Oluwafunmilayo; El‐Maaddawy, Tamer; Ismail, Najif

doi:10.1016/j.conbuildmat.2016.11.125

Cited by 138 publications

(54 citation statements)

References 44 publications

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“…FRCM composites behaviour under tension is significantly different from the FRP, which work manifests itself in a linear stress-strain model. Because of lower tensile strength of mineral mortar compared to epoxy resin, the bi-linear model applies to the composites made using this type of matrix [1]. The first line of the bi-linear model represents the state prior to matrix cracking, while the second one shows the composite behaviour after the matrix is fully cracked and only the properties of the fibres affect its strength.…”

Section: Frcm Composite Failure Modesmentioning

confidence: 99%

“…At the beginning of the 1980s, the use of FRP (Fibre Reinforced Polymers) composites as a structural strengthening was popularized. Their properties such as high strength-toweight ratio and corrosion resistance have made them a good alternative to traditional methods of strengthening [1]. These composites are made of various types of high-strength fibres immersed in epoxy resin matrix.…”

Section: Introductionmentioning

confidence: 99%

“…Due to the change of the matrix to one with a much lower penetration capacity, it was necessary to change the arrangement of the reinforcing fibres. Mechanical interlock mechanism is formed between the fibres and the matrix [1], so loosening the fibres in the form of a mesh is needed to allow the matrix to pass through the layer of fibres.…”

Section: Introductionmentioning

confidence: 99%

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FRCM composites mesh anchorage – a way to increase strengthening effectiveness

et al. 2018

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FRCM (Fabric Reinforced Cementitious Matrix) composites are the next stage of development of composite structural reinforcement after FRP (Fibre Reinforced Polymers) composites. The main element that distinguishes the newer FRCM system is the matrix of the composite – mineral matrix instead of epoxy resin. Changes in the structure of the composite, resulting from the change of the matrix, have a big impact on its work mechanisms. This paper discusses FRCM composites and shows its effectiveness in reinforced concrete elements strengthening. The basic information on FRCM mesh fibres material differences and composite failure modes are given. Current trends and directions of composite structural strengthening and the latest research in the area of increasing FRCM composite strengthening effectiveness, that are being conducted by the authors, are presented.

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Section: Frcm Composite Failure Modesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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FRCM composites mesh anchorage – a way to increase strengthening effectiveness

et al. 2018

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“…Prianjanje između vlakana i matrice postignuto je mehaničkim uklinjavanjem koji je rezultat prodiranja morta kroz razmake u mreži. Trake od polimernih vlakana nisu povoljno rješenje jer se ne može ostvariti veza između morta i vlakana [2]. Posljednjih dvadesetak godina provedeno je više istraživanja pojačanja armiranobetonskih elemenata te seizmička obnova zidanih konstrukcija te armiranobetonskih okvira s ispunom.…”

Section: Uvodunclassified

“…Postupak se može ponavljati ako se želi postići veći broj slojeva. Svaki sloj morta mora se nanijeti dok je prethodni sloj još svjež [2].…”

Section: Svojstva Trm Kompozitaunclassified

Textile reinforced mortars (TRM) as strengthening technique for reinforced concrete structures

Carić¹

2017

Zajednički Temelji 2017 - Peti Skup Mladih Istraživača Iz Područja Građevinarstva I Srodnih Tehničkih Znanosti - Zbornik Radova

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SažetakPosljednjih se godina za pojačanja konstrukcija istražuju tkaninom armirani mortovi (TRM). To su kompoziti koji se sastoje od vlakana (staklenih, ugljičnih, bazaltnih, PBO) i anorganske (cementne) matrice. Nastali su iz potrebe za rješavanjem nedostataka epoksidne matrice kod vlaknima armiranih polimera (FRP-a). Anorganska matrica ima veći toplinski kapacitet, a ponašanje elementa u vlaku nije linearno elastično. Snopovi vlakana su formirani u mreže kako bi se ostvarila povezanost s matricom. Provedeno je više istraživanja pojačanja armiranobetonskih i zidanih konstrukcija, a u ovom radu prikazana su pojačanja armiranobetonskih (AB) ploča, greda i stupova. Istaknuti su parametri koji utječu na učinkovitost kompozitnog djelovanja, a time i učinkovitost pojačanja te ponašanje pojačanih elemenata. Ključne riječi: TRM, pojačanja, AB, vlakna, mort, tkanina Textile reinforced mortars (TRM) as strengthening technique for reinforced concrete structures AbstractIn the last years, textile reinforced mortars (TRM) have been studied for the strengthening of structures. TRM are composites made of fibres (glass, carbon, basalt, PBO) embedded in inorganic (cementitious) matrix. They have been developed due to fibre reinforced polymers (FRP) epoxy matrix´s disadvantages. Inorganic matrix has higher thermal capacity and tensile behavior of material is non linear elastic. Fibre rovings form fabric grids in order to achieve the bond with the matrix through penetration of mortar through the fabric. Several studies have been carried out on the strengthening of reinforced concrete and masonry structures. Strengthening of reinforced concrete (RC) slabs, beams and columns is presented in this paper. Parameters that affect the effectiveness of composite action, and thus the effectiveness of strengthened elements are highlighted.

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Microstructured Fibers for the Production of Food

Sordo

Janeček

et al. 2019

Advanced Materials

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Food engineering faces the difficult challenge of combining taste, i.e., tailoring texture and rheology of food matrices with the balanced intake of healthy nutrients. In materials science, fiber suspensions and composites have been developed as a versatile and successful approach to tailor rheology while imparting materials with added functionalities. Structures based on such types of physical (micro)fibers are however rare in food production mainly due to a lack of food‐grade materials and processes allowing for the fabrication of fibers with controlled sizes and microstructures. Here, the controlled fabrication of multi‐material microstructured edible fibers is demonstrated using a food compatible process based on preform‐to‐fiber thermal drawing. It is shown that different material systems based on gelatin or casein, with plasticizers such as glycerol, can be thermally drawn into fibers with various geometries and cross‐sectional structures. It is demonstrated that fibers can exhibit tailored mechanical properties post‐drawing, and can encapsulate nutrients to control their release. The versatility of fiber materials is also exploited to demonstrate the fabrication of food‐grade fabrics and scaffolds for food growth. The end results establish a new field in food production that relies on fiber‐based simple and eco‐friendly processes to realize enjoyable yet healthy and nutritious products.

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Fabric-reinforced cementitious matrix: A promising strengthening technique for concrete structures

Cited by 138 publications

References 44 publications

FRCM composites mesh anchorage – a way to increase strengthening effectiveness

FRCM composites mesh anchorage – a way to increase strengthening effectiveness

Textile reinforced mortars (TRM) as strengthening technique for reinforced concrete structures

Microstructured Fibers for the Production of Food

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