The Simultaneous Evaluation of the Effect of Compaction, Wet and Tickness on Base Layer Behavior by Using of LWD Test

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AHADI MOHAMMADREZA; Mirhashemi Seyyed Farzad; Sadeghnejad Mostafa

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Journal: JOURNAL OF TRANSPORTATION INFRASTRUCTURE ENGINEERING (JTIE) Year:2019 | Volume:5 | Issue:2 (18) Page(s): 89-100

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Information Journal Paper

Title

The Simultaneous Evaluation of the Effect of Compaction, Wet and Tickness on Base Layer Behavior by Using of LWD Test

Author(s)

AHADI MOHAMMADREZA | Mirhashemi Seyyed Farzad | Sadeghnejad Mostafa | Issue Writer Certificate

Keywords

Asphalt PavementQ2

Base LayerQ2

Unbound MaterialsQ1

CompactionQ2

PFWD TestQ1

Abstract

Flexible Pavement has the most share for road construction in most countries. Iran also follows this rule. In most Asphalt Pavements design methods, there is less focus on base and subBase Layers and most of the researches are focused on the asphalt layer. Since the behavior of these materials is different in the short and long term due to the elastoplastic properties, it’ s so important to examine their behavior before using in the pavement layers and also behavioral comparison between different types of materials. This leads to the choice of the best type of pavement materials and the best conditions for grading, moisture and Compaction. In results, it is important to select the test conditions that can accurately simulate the actual stresses on the pavement. Light weight deflectometer (LWD) test is usually used to determine the bearing strength of the unbound layers of the pavement. The purpose of this study is to examine simultaneously the role of the effective factors associated with the Base Layer on the behavior of this layer using of LWD test. The selected effective factors include Compaction, thickness, and moisture content of the layer. The results show that increasing of Compaction from 87% to 97%, and layer thickness from 20 to 40cm, the surface modulus of layer is significantly increased and deflection is reduced. Also, the results show that the changes in the moisture content of the layer did not have effect on the modulus and deflection of the layer.

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APA: Copy

AHADI, MOHAMMADREZA, Mirhashemi, Seyyed Farzad, & Sadeghnejad, Mostafa. (2019). The Simultaneous Evaluation of the Effect of Compaction, Wet and Tickness on Base Layer Behavior by Using of LWD Test. JOURNAL OF TRANSPORTATION INFRASTRUCTURE ENGINEERING (JTIE), 5(2 (18) ), 89-100. SID. https://sid.ir/paper/251525/en

Vancouver: Copy

AHADI MOHAMMADREZA, Mirhashemi Seyyed Farzad, Sadeghnejad Mostafa. The Simultaneous Evaluation of the Effect of Compaction, Wet and Tickness on Base Layer Behavior by Using of LWD Test. JOURNAL OF TRANSPORTATION INFRASTRUCTURE ENGINEERING (JTIE)[Internet]. 2019;5(2 (18) ):89-100. Available from: https://sid.ir/paper/251525/en

IEEE: Copy

MOHAMMADREZA AHADI, Seyyed Farzad Mirhashemi, and Mostafa Sadeghnejad, “The Simultaneous Evaluation of the Effect of Compaction, Wet and Tickness on Base Layer Behavior by Using of LWD Test,” JOURNAL OF TRANSPORTATION INFRASTRUCTURE ENGINEERING (JTIE), vol. 5, no. 2 (18) , pp. 89–100, 2019, [Online]. Available: https://sid.ir/paper/251525/en

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