Flexural strength, stiffness and fatigue of cement-treated mixtures of reclaimed asphalt pavement and lateritic soil

Fedrigo, William; Núñez, Washington Peres; Schreinert, Gabriel Grassioli; Kleinert, Thaís Radünz; Matuella, Matheus Ferreira; López, Mario Alexander Castañeda; Ceratti, Jorge Augusto Pereira

doi:10.1080/14680629.2019.1660207

Cited by 15 publications

(13 citation statements)

References 55 publications

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“…Accordingly, ITS values also increased over curing time (similar to UCS behavior). These findings are consistent with the results of other researchers (BESSA et al, 2016;FEDRIGO et al, 2018;SIMONI et al, 2019).…”

Section: Indirect Tensile Strength (Its)supporting

confidence: 94%

“…In addition, mixtures 20:80 exhibited the highest ITS values. In terms of cement content, it is possible to observe that larger amounts of cement resulted in higher ITS values, as also showed by the aforementioned UCS results and by other authors (BESSA et al, 2016;FEDRIGO et al, 2018;SIMONI, 2019). As with the UCS results, the influence of cement content was not detected in ITS values at 0 days of curing, probably because cement needs time for hydration progress and corresponding strength increase.…”

Section: Indirect Tensile Strength (Its)supporting

confidence: 71%

“…"recycled" SAC, adding cement to a soil-aggregate mixture of a deteriorated pavement layer. The authors obtained satisfactory results for strength Fedrigo et al (2019). studied SAC containing RAP in different grain sizes, demonstrating the feasibility of using these recycled materials.…”

mentioning

confidence: 77%

“…Some studies investigated the influence of these factors in the strength of SAC mixtures (BESSA et al, 2016;BAGHINI et al, 2017;FEDRIGO et al, 2019;SIMONI, 2019). Bessa et al (2016) studied the mechanical behavior of a milled material (from deteriorated soilaggregate base layer) stabilized with cement.…”

Section: Mechanical Behavior Of the Sacmentioning

confidence: 99%

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Study on factors affecting the mechanical behavior of soil-aggregate-cement mixtures

Valoura¹

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Section: Indirect Tensile Strength (Its)supporting

confidence: 94%

Section: Indirect Tensile Strength (Its)supporting

confidence: 71%

mentioning

confidence: 77%

Section: Mechanical Behavior Of the Sacmentioning

confidence: 99%

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Study on factors affecting the mechanical behavior of soil-aggregate-cement mixtures

Valoura¹

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“…The number of studies on the fatigue of CRCTMs is limited [6][7][8][9][10][11][12][13][14], and some factors affecting it are still not completely understood. For instance, the effect of RAP, since previous research reports either better [6,12] or worse [10,11,14] fatigue behavior with increasing RAP contents. Moreover, most researchers used 28-day fatigue tests since it is a consensus that cement virtually reaches its maximum strength after such an age.…”

Section: Introductionmentioning

confidence: 99%

Fatigue of Cold Recycled Cement-Treated Pavement Layers: Experimental and Modeling Study

et al. 2023

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Fatigue is the main design criterion for cold recycled cement-treated mixtures (CRCTMs). However, the literature shows that the fatigue behavior of such mixtures is still not well known. For example, the effect of increasing reclaimed asphalt pavement (RAP) contents is yet a topic of discussion. This experimental and modeling study helps fill knowledge gaps on CRCTM fatigue behavior using long-term curing fatigue tests and three design methods currently being used in different countries. The objectives of this study were: (1) to characterize the mechanical and fatigue behavior of mixtures of RAP, aggregates and cement; (2) to evaluate the fatigue life of pavements with base and subbase layers of such mixtures using the novel Brazilian design method (MeDiNa); and (3) to compare the results with those obtained using the South African Pavement Engineering Manual (SAPEM) transfer functions and the American Association of State Highway and Transportation Officials AASHTOWare Pavement Mechanistic-Empirical Design (PMED) software. The mixtures were tested in the laboratory using flexural static and cyclic tests, and the required parameters to use the methods were obtained. Experimental results and modeling demonstrated a superior fatigue behavior of recycled layers with higher RAP contents. On the other side, layers with lower RAP contents abruptly lost stiffness in short periods, making thicker structures necessary. Therefore, using high RAP contents is not only a sustainable practice, but also a technical benefit. The equivalent single axle loads obtained using the SAPEM were higher than those obtained using MeDiNa, while the PMED ones were higher than both previous methods. Despite the inherent differences, this suggests that MeDiNa is more conservative. It also highlights the importance of calibration based on long-term pavement performance data.

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Mechanical Performance of Vegetation-Growing Concrete Reinforced by Palm Fibers under Triaxial Compression

Huang,

Ding,

et al. 2021

KSCE J Civ Eng

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Flexural strength, stiffness and fatigue of cement-treated mixtures of reclaimed asphalt pavement and lateritic soil

Cited by 15 publications

References 55 publications

Study on factors affecting the mechanical behavior of soil-aggregate-cement mixtures

Study on factors affecting the mechanical behavior of soil-aggregate-cement mixtures

Fatigue of Cold Recycled Cement-Treated Pavement Layers: Experimental and Modeling Study

Mechanical Performance of Vegetation-Growing Concrete Reinforced by Palm Fibers under Triaxial Compression

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