Results 1 to 10 of about 73 (62)
Laboratory and field investigation of grouted macadam for semi-flexible pavements
Case Studies in Construction Materials, 2022 Grouted macadam (GM) made of an open-graded asphalt skeleton whose air voids are filled with a cementitious grout, is used as wearing course in semi-flexible pavements. GM stands out for its high stiffness and rutting resistance, as well as for its chemical resistant and jointless surface.
Francesco Canestrari +2 more
exaly +4 more sources
Laboratory characterization of a cement grouted bituminous macadam made with Portland slag cement
International Journal of Pavement Research and Technology, 2019 Cement grouted bituminous macadam (CGBM) consists of porous asphalt skeleton with a void content of 25% to 35%, which is filled with a cementitious grout. It is usually considered as a semi-flexible layer as it incorporates both the flexibility of bituminous layer and the stiffness of the grout content. In this study, a porous asphalt skeleton with 28%
Umesh Sahoo, Sahoo Umesh Chandra
exaly +2 more sources
Semi-Flexible Pavement: A Review of Design and Performance Evaluation [PDF]
E3S Web of Conferences, 2023 It is known to researchers in the field of road construction and development. Three types of pavement are rigid, flexible, and composite paving. The composite pavement consists of a layer of flexible pavement on top of which a layer of rigid pavement is ...
Abdulsahib Iftikhar +2 more
doaj +1 more source
A scientometric study and a bibliometric review of the literature on the design and construction of semi-flexible pavement [PDF]
Al-Qadisiyah Journal for Engineering Science, 2023 In last years, a new type of pavement has gained popularity, this type is called Semi-Flexible Pavement (SFP). It consists of porous asphalt with high air voids between (25-35) % filled with cementitious grout materials.
Rania Ihsan Ali, Basim H. Al-Humeidawi
doaj +1 more source
Thermally Treated Waste Silt as Geopolymer Grouting Material and Filler for Semiflexible Pavements
Infrastructures, 2022 Considering the future shortage of natural aggregates, various researchers have promoted the recycling of by-products into various asphalt pavement types.
Abbas Solouki +2 more
doaj +1 more source
Advances in Materials Science and Engineering, Volume 2022, Issue 1, 2022., 2022 Under the repeated action of traffic and thermal loads, a cement concrete pavement slab may partially lose contact with its base course, and voids may develop underneath the slab. Such distress will greatly impact the pavement performance. To fill the voids and restore the base support to the slab, the technology of polymer grouting has been ...
Can Cui +4 more
wiley +1 more source
Mathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022 Polymer grouting materials have been widely used in road repair projects. In order to study the application of polymer grouting materials in repairing the joint cracks and voids of new and old subgrades in the reconstruction and expansion projects of expressways. According to the phenomenon investigation data, ABAQUS finite element software was used to
Songtao Li +5 more
wiley +1 more source
Study of the Effect of Grouting Material Strength on Semiflexible Pavement Material
Advances in Materials Science and Engineering, Volume 2022, Issue 1, 2022., 2022 In this study, cement mortars with different strengths are poured into the large void matrix asphalt macadam material as a semiflexible pavement (SFP) material and the experimental research is carried out. The current research on SFP is mainly focused on the performance of grouting materials and the influence of grouting matrix materials on the overall
Qingguo Yang +9 more
wiley +1 more source
Mechanical Analysis of Preventing Reflection Cracks Based on Stress Absorbing Layer
Advances in Civil Engineering, Volume 2022, Issue 1, 2022., 2022 After asphalt concrete overlay, the reflection crack in the old pavement remains a great challenge. In order to overcome this problem, here, we report the effect of stress absorbing layer on the reflection crack. First, the concrete measures to prevent and reduce reflection cracks at home and abroad are analyzed.
Lingjie Han +4 more
wiley +1 more source
Multiple Reflective Cracks in Semirigid Base Asphalt Pavement under Traffic Load Using XFEM
Advances in Civil Engineering, Volume 2022, Issue 1, 2022., 2022 This paper built a three‐dimensional layered structure model of semirigid base asphalt pavement with single and double transverse reflective cracks based on the Extended Finite Element Method and fatigue fracture theory. The effects of the number of cracks, crack spacing, and crack length on the stress intensity factors (KI, KII, and Keff) under moving
Lei Guo +4 more
wiley +1 more source