Results 11 to 20 of about 73 (62)

Research on Fatigue Model of Semi‐Rigid Base Asphalt Pavement before and after Polymer Grouting

Advances in Civil Engineering, Volume 2021, Issue 1, 2021., 2021
To improve the service life of a semirigid base asphalt pavement and prolong its service cycle, it is imperative to conduct long‐term performance research before and after pavement disease repair. This study proposes a fatigue damage model for pavement and polymer materials and uses the finite element method to establish a three‐dimensional numerical ...
Bei Zhang, Xu Zhang, Yanhui Zhong, Xiaolong Li, Meimei Hao, Xianwei Sang, Xiaoliang Wang, Jianyang Liu, Di Wang   +8 more
wiley   +1 more source

Temperature Field Variation Law of Low Exothermic Polymer Grouting Material in Repairing Void Damage of Frozen Soil Subgrade

Advances in Materials Science and Engineering, Volume 2021, Issue 1, 2021., 2021
In this study, the self‐developed grouting mold was used to study the heat release characteristics of different density polymer grouting material under different temperature conditions. The spatial distribution characteristics of the frozen soil subgrade temperature field under the effect of polymer grouting repair were analyzed.
Bei Zhang, Baolin Wang, Yanhui Zhong, Shuangjie Wang, Xiaolong Li, Shilun Wang, Xiao Dong Zhao   +6 more
wiley   +1 more source

Assessing and Improving the Performance of Grouted Macadam

American Journal of Engineering and Applied Sciences, 2020
There are many road defects appear in flexible pavement layers. Rutting, raveling and cracks are considered the main problems in Egypt. Using grouted macadam system as a surface asphaltic layer (or called Semi-Flexible Pavement (SFP)) has many advantages such as saving the natural asphalt and enhancing the performance against deteriorations.
Momtaz M. Othman, Ahmed Ebrahim Abu El-Maaty, Zeinab S. Hussein   +2 more
openaire   +1 more source

Backcalculation of pavements incorporating Grouted Macadam technology

Road Materials and Pavement Design, 2017
Applying cement grout with a high compressive strength to a porous layer made of asphalt concrete results in a pavement with the properties of an intermediate type that combines the characteristics of both flexible and rigid pavements. This solution is known as Grouted Macadam (GM).
Andrzej Pożarycki, Jakub Fengier, Przemysław Górnaś, Dariusz Wanatowski   +3 more
openaire   +2 more sources

Numerical Analysis of the Soil Deformation Caused by Tunneling under Vehicle Loads in the Coastal Reclamation Area

Mathematical Problems in Engineering, Volume 2015, Issue 1, 2015., 2015
Prediction of tunneling induced soil deformation is an important issue in the design of tunnels constructed in the densely populated urban areas. In this paper, commercial FEM software 3D ABAQUS is adopted to simulate the behavior of soil caused by tunneling under vehicle loads in the coastal reclamation area. A field case study was also carried out to
Baoping Zou, Jianxiu Wang, Qian Tian, Wei Guo, Jianhui Yang, Jue Yi, Zhanyou Lou, Giovanni Garcea   +7 more
wiley   +1 more source

Effects of Aggregate Gradation on the Physical Properties of Semiflexible Pavement

Advances in Materials Science and Engineering, Volume 2014, Issue 1, 2014., 2014
Semiflexible pavement (SFP), a composite pavement, is formed by filling into a very open porous asphalt skeleton a specifically designed water consistency fluid mortar with a very high early and 28‐day strength. The amalgamation of both components will produce a SFP where it will replace the conventional wearing course.
Nadiah Md. Husain, Mohamed Rehan Karim, Hilmi B. Mahmud, Suhana Koting, Aiguo Xu   +4 more
wiley   +1 more source

A simple approach to the design of pavements incorporating grouted macadams

, 2007
Grouted macadams form a semi-flexible class of composites whose behaviour lies somewhere between concrete and conventional asphalt materials, having both excellent rut resistance and a degree of flexibility. This paper presents a series of pavement design computer simulations, based on results obtained from laboratory fatigue and stiffness tests on ...
Oliveira, Joel, Zoorob, S., Thom, N. H., Pereira, Paulo A. A.   +3 more
openaire   +1 more source

Evaluation of Grouting Repair Effectiveness of Void-Damaged Cement Stabilized Macadam Using Four Multi-Source Characterization Techniques

Buildings
Cement stabilized macadam (CSM) bases are prone to cracking and void damage under long-term traffic loading and environmental actions, which accelerates structural deterioration. Although grouting is an effective method for treating such concealed defects, laboratory-based evaluation of repair effectiveness remains limited.
Shiao Yan, Chunkai Sheng, Zhou Zhou, Xing Hu, Xinyuan Cao, Qiao Dong   +5 more
openaire   +1 more source

Cementitious Grouts for Semi-Flexible Pavement Surfaces-A Review. [PDF]

Materials (Basel), 2022
Khan MI, Sutanto MH, Yusoff NIM, Zoorob SE, Rafiq W, Ali M, Fediuk R, Vatin NI.   +7 more
europepmc   +1 more source

Evaluation of Grouting Effectiveness on Cracks in Cement-Stabilized Macadam Layer Based on Pavement Mechanical Response Using FBG Sensors

Applied Sciences
Cracking in semi-rigid cement-stabilized macadam bases constitutes a prevalent distress in asphalt pavements. While extensive research exists on grouting materials for crack rehabilitation, quantitative assessment methodologies for treatment efficacy remain underdeveloped. This study proposes a novel evaluation framework integrating fiber Bragg grating
Zhang, Min, Hu, Hongbin, Ren, Cheng, Shang, Zekun, Ma, Xianyong   +4 more
openaire   +2 more sources