Rheology of fiber-reinforced cementitious materials

Kuder, Katherine; Özyurt, Nilüfer; Mu, Edward B.; Shah, Surendra P.

doi:10.1016/j.cemconres.2006.10.015

Cited by 97 publications

(40 citation statements)

References 9 publications

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“…Other researchers used rheometers to assess the FRC fresh behavior. The studies were limited to ultra-high strength concretes 16 or mortars 17 but, up to now, rheometers are not suitable to evaluate the effect of the maximum aggregate size in plastic and especially stiff consistency concretes. This difficulty is associate to the risk of locking the rheometers rackets by the aggregates with greater diameter during the test.…”

Section: Introductionmentioning

confidence: 99%

Workability Analysis of Steel Fiber Reinforced Concrete Using Slump and Ve-Be Test

Figueiredo

Ceccato²

2015

Mat. Res.

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This works present an experimental study addressing the workability of fiber reinforced concrete (FRC). Only conventional measurements, such as slump and Ve-Be test, were used to evaluate the effect of the fiber content in the mixture. The fiber content shows to be of great influence in the concrete mobility reducing the slump and increasing exponentially the Ve-Be time. The fibers act as a barrier to coarse aggregates movement reducing the materials mobility. So, increasing the aggregate size or the fiber aspect ratio the flowability of the material will be reduced. In order to reduce that effect, an increase in the mortar content and/or in the initial slump could provide better workability conditions. The results showed that the Ve-Be test is not applicable to concrete with plastic consistency. On the other hand, slump test could not be adequate for stiff concretes that will be consolidated by intense vibration.

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Section: Introductionmentioning

confidence: 99%

Workability Analysis of Steel Fiber Reinforced Concrete Using Slump and Ve-Be Test

Figueiredo

Ceccato²

2015

Mat. Res.

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“…This is in conflict with the general opinion saying that adding fibers causes an increase in both yield stress and viscosity. However, this result can be explained based on a previous work of the second author [46]. Kuder et al used the same 6 mm short cut straight steel fibers to understand the effects of fibers on the rheological behavior of mortars (3 different fiber volumes, 1%, 2%, 4%).…”

Section: Displacement Vectors and Strain Fieldsmentioning

confidence: 61%

Particle image velocimetry (PIV) to evaluate fresh and hardened state properties of self compacting fiber-reinforced cementitious composites (SC-FRCCs)

Şanal

Zihnioğlu

Hosseini

2015

Construction and Building Materials

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“…However, the fiber addition can reduce the mortar workability. The better dispersion of fibers in a mortar and more workability characteristics are the key factors to obtain successful fiber-reinforced mortar for repair applications [4]. The self-compacting mortar mixture (SCM) can provide many advantages.…”

Section: Introductionmentioning

confidence: 99%

Influence of limestone dust and natural pozzolan on engineering properties of self-compacting repair mortars

Ghrici

Choucha

Omran

2018

Frattura Ed Integrità Strutturale

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ABSTRACT. The main goal of this work is to develop self-compacting repair mortars (SCRMs) containing limestone dust (LD) and Natural Pozzolan (NP). Therefore, a three different mortar (SCRM0, SCRM-10LD and SCRM-20NP) were prepared and tested according to EN 1504-3. The results of the experimental study showed that the produced repair materials fulfilled the performances requirements for structural repair products, class R4. In addition, complete composite specimens for the slant shear, showed a good bond strength between the SCRMs and existing substrate concrete (SUBC) at 28-days and the fractures were only occurred in the SUBC, which means that the substrate is the weakest link in the repair system.

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Rheology of fiber-reinforced cementitious materials

Cited by 97 publications

References 9 publications

Workability Analysis of Steel Fiber Reinforced Concrete Using Slump and Ve-Be Test

Workability Analysis of Steel Fiber Reinforced Concrete Using Slump and Ve-Be Test

Particle image velocimetry (PIV) to evaluate fresh and hardened state properties of self compacting fiber-reinforced cementitious composites (SC-FRCCs)

Influence of limestone dust and natural pozzolan on engineering properties of self-compacting repair mortars

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