Stiffness testing for bituminous mixtures

Benedetto, Hervé Di; Partl, Manfred N.; Francken, L; André, C. De La Roche Saint

doi:10.1007/bf02481553

Cited by 119 publications

(40 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the considered experiments, a sinusoidal (tension/compression) or haversine (compression) is applied to cylindrical specimens at different temperatures and loading frequencies. The axial strain amplitude should be small enough in order to ensure that the behavior remains within the linear domain [17][18][19].…”

Section: Poisson's Ratio For Linear Viscoelastic Materialsmentioning

confidence: 99%

3Dim experimental investigation of linear viscoelastic properties of bituminous mixtures

et al. 2016

View full text Add to dashboard Cite

As part of RILEM TC 237-SIB, TG3 performed a Round Robin Test to evaluate the capacity to measure Poisson's ratio of an asphalt mixture in the laboratory and to check whether it could be considered as an isotropic property. Five laboratories located in five different countries took part in the testing program. This paper presents the different techniques used by the laboratories, reports the measured Poisson's ratios and comments upon the differences found between the results. Sinusoidal or haversine loading either in tension-compression or pure compression was applied to the specimens over a range of frequencies and temperatures. During the loading both the axial and radial strains were monitored to allow the complex Young's modulus and the complex Poisson's ratios to be calculated. It was found that the complex Young's modulus and the complex Poisson's ratios were very close in the Black Diagrams, but diverge sharply in the Cole-Cole plots. It was observed that the maximum difference between the complex Poisson's ratio in direction 2 and direction 3 is less than 0.05. It would appear that this difference is more related to measurement deviation than anisotropy of the material. Some differences were observed in the master curves of complex Young's modulus and complex Poisson's ratio obtained from the five laboratories; however these differences could in most cases be explained by temperature differences. It was concluded that within the linear viscoelastic range (small strains) the results from the different laboratories show similar rheological behavior and the material response follows the same trend.

show abstract

Section: Poisson's Ratio For Linear Viscoelastic Materialsmentioning

confidence: 99%

3Dim experimental investigation of linear viscoelastic properties of bituminous mixtures

et al. 2016

View full text Add to dashboard Cite

show abstract

“…So, the material has high φ value would be very viscoelastic and inclined to absorb more energy in cyclic loading, whereas, with less φ values, it absorbs less energy. Although for all tested CRM mixtures the value of both E 0 and φ are well below those commonly measured on HMA [27,28]. It can be seen that the combination of MR7 and MR5 have higher φ value, than the MR6-75 and 85% asphalt mixtures.…”

Section: Master Curves Of the Tested Asphalt Mixturesmentioning

confidence: 54%

“…4 and 5, respectively. The k, h, δ and β parameters are related to the binder rheology [26,27]. These parameters are nearly same for all CRM's except β, which means RAP percentage could modify the binder rheology.…”

Section: Master Curves Of the Tested Asphalt Mixturesmentioning

confidence: 89%

Rheological behavior of cold recycled asphalt materials with different contents of recycled asphalt pavements

Gandi

Carter

Singh

2017

Innov. Infrastruct. Solut.

View full text Add to dashboard Cite

In Québec, for more than 20 years, cold in-place recycling (CIR) and full-depth reclamation (FDR) have been reliable rehabilitation techniques; restoring pavement condition at an affordable cost with a lower footprint on the environment. Experience reveals that CIR and FDR interventions effectively address the issues of reflective cracking and respect Québec's Ministry of transportation rutting threshold values. However, despite their commendable performance in the field, the cold recycled emulsified asphalt materials (CRM) has yet to be adequately characterized with respect to their rheological properties. This study was undertaken to evaluate the rheological behavior of the CRM with four different combinations of RAP (50, 75, 85, and 100%). The scope of work for this study consisted of preparing the laboratory compacted CRM specimens, determining the complex modulus (E*) of compacted specimens at various testing temperatures and loading frequencies, analyzing the experimental data with the help of 2S2P1D (2S: two springs, 2P: two parabolic elements, 1D: one dashpot) model and finally, validating the results with pavement design. It was concluded that 100% RAP mixture exhibits extremely high stiffness value at high frequency and low temperature. The results revealed that all four mixtures respect the time-temperature superposition principle with respect to the complex modulus. From a pavement design perspective, the moduli measured in this study do have a big impact. However, since different pavement structure are achieved with those different materials, the stiffest material, the CIR, ended up giving the least performant structure.

show abstract

“…It gives the stiffness modulus with good accuracy for a wide range of test methods and sample sizes, when sinusoidal cyclic tests are considered. Nevertheless, it is a delicate measurement and some conditions should be respected [1]. In order to deal with these conditions, the test consists of performing five test pulses at a frequency of 10 Hz, a temperature of Table 8.…”

Section: Nat (Nottingham Asphalt Tester)mentioning

confidence: 99%

“…Laboratory tests on bituminous materials are commonly used to improve their characteristics [1,2]. For many decades, conventional bituminous materials have been used satisfactorily in most roadway applications.…”

Section: Introductionmentioning

confidence: 99%

Laboratory Evaluation of the Stiffness Modulus of a Modified Bituminous Concrete with PR PLAST Sahara

Harizi¹,

Morsli²,

Bensaibi³

2013

JCEA

View full text Add to dashboard Cite

Uneven roads surface can be observed on bituminous pavements. This is due to moving loads and climate conditions. If the observed deformations exceed the elastic limit, important damages can occur, so new materials are used to improve the stiffness modulus of bituminous mixtures. To achieve this, a modified bituminous concrete by addition of the PR PLAST Sahara (produced by PR industries and PLAST for Plastic) mainly used in arid region has been studied. The use of this additive at various percentages 0.1, 0.3, 0.6 and 0.9 by weight of bituminous concrete has been investigated to determine its stiffness modulus. An experimental design using the Taguchi tables has been elaborated to reduce the number of tests. Marshall and NAT (Nottingham asphalt tester) tests have been carried out, and a mathematical model of the stiffness modulus has been proposed.

show abstract

Stiffness testing for bituminous mixtures

Cited by 119 publications

References 5 publications

3Dim experimental investigation of linear viscoelastic properties of bituminous mixtures

3Dim experimental investigation of linear viscoelastic properties of bituminous mixtures

Rheological behavior of cold recycled asphalt materials with different contents of recycled asphalt pavements

Laboratory Evaluation of the Stiffness Modulus of a Modified Bituminous Concrete with PR PLAST Sahara

Contact Info

Product

Resources

About