Results 21 to 30 of about 1,132 (183)

Utilizing solid plastic wastes in subgrade pavement layers to reduce plastic environmental pollution

open access: yesCleaner Engineering and Technology, 2022
The present study investigated the utilization of plastic wastes as reinforcement to improve the strength and swelling behavior of weak subgrade expansive soils and reduce plastic pollution.
Shelema Amena
doaj   +1 more source

Characterization of engineering properties of weak subgrade soils with different pozzolanic & cementitious additives

open access: yesCase Studies in Construction Materials, 2021
The strength of subgrade layer plays an important role in achieving a sound and economic pavement design. To explore novel methods for improving the engineering properties of weak subgrade soils, this research study used bentonite, a naturally occurring ...
Inayat Ur Rahman   +6 more
doaj   +1 more source

Use of high-performance reinforcement geosynthetics to stabilize access roads [PDF]

open access: yesE3S Web of Conferences
With the rapid infrastructure development, the availability of competent soils is decreasing. The access roads and tracks practicability should be ensured when crossing these weak soils.
Rdissi Yasmine   +2 more
doaj   +1 more source

EFFECT OF FREEZING AND THAWING ON THE STRENGTH AND DURABILITY OF SANDY SUBGRADE CONTAINING FIBRILLATING NETWORK FIBER FOR PAVEMENT [PDF]

open access: yesCivil Engineering Journal, 2020
One of the challenges of road construction is encountering soils with lack of required strength and durability. Nowadays, various stabilization techniques are applicable for improving the engineering properties of soils.
Mohammad Mehdi Khabiri   +1 more
doaj   +1 more source

Resilient modulus prediction of soft low-plasticity Piedmont residual soil using dynamic cone penetrometer

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2018
Dynamic cone penetrometer (DCP) has been used for decades to estimate the shear strength and stiffness properties of the subgrade soils. There are several empirical correlations in the literature to predict the resilient modulus values at only a specific
S. Hamed Mousavi   +2 more
doaj   +1 more source

Permanent deformation characteristics of unsaturated subgrade soils under cyclic loading

open access: yesCase Studies in Construction Materials
Excess permanent deformation of subgrade may cause critical rutting in pavements, and subsurface water significantly affects the accumulation of permanent deformation.
Xuanxuan Chu   +4 more
doaj   +1 more source

Application of Ground Penetrating Radar to Estimate Subgrade Soil Density

open access: yesInfrastructures, 2020
Ground penetrating radar (GPR) technology has been widely used in pavement assessment over the last decade. Assessing the subgrade condition and monitoring its temporal variation provide valuable information regarding changes associated with pavement ...
Ahmad Abdelmawla, S. Sonny Kim
doaj   +1 more source

Engineering Characterization of Subgrade Soils of Jimma Town, Ethiopia, for Roadway Design

open access: yesGeosciences, 2020
Soils are naturally occurring materials that carry loads of civil engineering structures including roads and buildings. However, not all natural soils are suitable for such uses due to limited strength and instability under varying environmental ...
Alemineh Sorsa   +2 more
doaj   +1 more source

Effect of the Field-Stress State on the Subgrade Resilient Modulus for Pavement Rutting and IRI

open access: yesGeotechnics, 2023
The new Mechanistic-Empirical Pavement Design Guide (MEPDG) uses the subgrade resilient modulus (MR) as the key input parameter to represent the subgrade soil behavior for pavement design.
Kazi Moinul Islam, Sarah L. Gassman
doaj   +1 more source

A Sliding Time‐Window Energy Ratio Method for Weak Signal Enhancement of Deep Subgrade Voids in GPR Data

open access: yesApplied Research, Volume 5, Issue 4, August 2026.
A sliding time‐window energy ratio method is proposed to enhance weak GPR reflections from deep pavement voids. By combining target‐window localization with same‐window normalization, STWER suppresses non‐target interference and improves defect localization, as demonstrated by numerical simulations and field cases verified by excavation and core ...
Zhengnan Liu   +4 more
wiley   +1 more source

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