Evaluation of the fatigue behavior of recycled aggregate concrete

Thomas, Carlos; Sosa, Israel; Setién, J.; Polanco, J.A.; Cimentada, A.

doi:10.1016/j.jclepro.2013.09.036

Cited by 95 publications

(44 citation statements)

References 20 publications

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“…Likewise, it is possible to determine that, Figure 6 shows, first of all, that RC-B was able to resist the most steps, which meant that it was the material with the highest IC, with RC-S being able to resist the least and RC-M was in an intermediate situation between the other two materials. These results agree with the results of other authors who state that the presence of adhered mortar in the RA reduces this coefficient [15,16,42]. It can also be seen that the deformation values suffered by the specimens was lower in the case of RC-B.…”

Section: Appl Sci 2020 10 X For Peer Review 7 Of 16supporting

confidence: 92%

“…Li et al [14] analysed the influence of compressive fatigue on a fiber-reinforced cementitious material. Thomas et al analysed the concrete fatigue behavior using two different methods: the staircase method [15] and the Locati method [16]. Innovative techniques, such as micro computed tomography (micro- CT) have also been used to analyze the behavior of concrete at fatigue, both in compressive fatigue [12] and bending fatigue [17].…”

Section: Introductionmentioning

confidence: 99%

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High-Frequency Fatigue Testing of Recycled Aggregate Concrete

et al. 2019

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Concrete fatigue behaviour has not been extensively studied, in part because of the difficulty and cost. Some concrete elements subjected to this type of load include the railway superstructure of sleepers or slab track, bridges for both road and rail traffic and the foundations of wind turbine towers or offshore structures. In order to address fatigue problems, a methodology was proposed that reduces the lengthy testing time and high cost by increasing the test frequency up to the resonance frequency of the set formed by the specimen and the test machine. After comparing this test method with conventional frequency tests, it was found that tests performed at a high frequency (90 ± 5 Hz) were more conservative than those performed at a moderate frequency (10 Hz); this effect was magnified in those concretes with recycled aggregates coming from crushed concrete (RC-S). In addition, it was found that the resonance frequency of the specimen–test machine set was a parameter capable of identifying whether the specimen was close to failure.

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Section: Appl Sci 2020 10 X For Peer Review 7 Of 16supporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

High-Frequency Fatigue Testing of Recycled Aggregate Concrete

et al. 2019

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“…One of the most effective ways to recycle CDW is to crush them into aggregates that can be reused in the production of new concrete [6]. Of course, there are severe requirements on the mechanical properties of ordinary concrete, because it generally has a structural role in buildings; therefore recycled aggregates can be used to replace natural aggregates for fabrication of concrete in limited amounts, as recent literature suggests [7][8][9][10][11][12][13]. For example, Evangelista & de Brito [9,10] points out that using more than 20-30% of recycled aggregates in concrete leads to a large increase in water absorption, due to their higher porosity when being compared to natural aggregates.…”

Section: Introductionmentioning

confidence: 99%

Properties of cement–lime mortars vs. cement mortars containing recycled concrete aggregates

Samiei¹,

Daniotti²,

Pelosato³

et al. 2015

Construction and Building Materials

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“…To address this problem, recent researchers have been working on the use of recycled aggregate in concrete production. [1][2][3] Huge energy is required for crushing in processing recycled aggregate from demolition waste, and this process emits carbon dioxide into the atmosphere. Hence, present concrete production needs the use of alternate coarse aggregates, which should be a renewable source and eco-friendly.…”

Section: Introductionmentioning

confidence: 99%

Characterization of eco‐friendly steel fiber‐reinforced concrete containing waste coconut shell as coarse aggregates and fly ash as partial cement replacement

Prakash¹,

Thenmozhi²,

Raman

et al. 2019

Structural Concrete

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This study investigates the effect of steel fiber addition into eco‐concrete made with fly ash, an industrial by product, as partial cement replacement material, and coconut shell, an agricultural waste, as coarse aggregates, on the mechanical properties. Two different mixes were developed, one with coconut shell only as coarse aggregates, and the other with both conventional aggregates and coconut shell as coarse aggregates. The cement content was replaced with class F fly ash at 10% by weight. Steel fibers of 0.25, 0.5, 0.75, and 1.0% by volume of concrete were used. The properties investigated were slump, density, ultrasonic pulse velocity, compressive strength, split tensile strength, flexural strength, and modulus of elasticity (MOE). The findings indicated that the addition of steel fibers resulted in a reduced slump and slightly increased density in the fresh concrete mixes. Meanwhile, enhancements of up to 39% compressive strength and 17% MOE were also obtained. A substantial improvement in split tensile strength and flexural strength were also observed. Steel fiber addition also significantly reduced the brittleness of concrete containing coconut shell. The outcomes of the experiment revealed that steel fiber addition yielded a positive result on the mechanical properties of coconut shell concrete.

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Evaluation of the fatigue behavior of recycled aggregate concrete

Cited by 95 publications

References 20 publications

High-Frequency Fatigue Testing of Recycled Aggregate Concrete

High-Frequency Fatigue Testing of Recycled Aggregate Concrete

Properties of cement–lime mortars vs. cement mortars containing recycled concrete aggregates

Characterization of eco‐friendly steel fiber‐reinforced concrete containing waste coconut shell as coarse aggregates and fly ash as partial cement replacement

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