Results 11 to 20 of about 1,132 (183)

Understanding the performance of expansive subgrade materials treated with non-traditional stabilisers: A review

open access: yesCleaner Engineering and Technology, 2021
Expansive soils are problematic soils which pose a risk to the safety of civil engineering structures. These soils can be treated by compaction or by adding additives to the soil. Where the strength and properties of expansive soil cannot be improved via
Samuel Y. Amakye, Samuel J. Abbey
doaj   +1 more source

Analysis of the subgrade design concept in areas of permafrost soil distribution in Western Siberia

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2020
The subgrade design concept on permafrost soils was developed in the last century, and currently it are still used in the highway engineering by design organizations.
A. N. Shuvaev   +2 more
doaj   +1 more source

Influence of Humidity State on Dynamic Resilient Modulus of Subgrade Soils: Considering Repeated Wetting-Drying Cycles

open access: yesAdvances in Materials Science and Engineering, 2021
The service performance of subgrade depends on the dynamic resilient modulus (MR) of subgrade soils. Meanwhile, due to complicated conditions such as rainfall infiltration, high temperature evaporation, and groundwater level fluctuations, it can be ...
Gongfeng Xin   +4 more
doaj   +1 more source

Frost Heaving and Induced Pressure of Unsaturated Interfacial Zone between Gravel Ballast and Subgrade

open access: yesApplied Sciences, 2022
Most existing railroads are composed of gravel ballast. One of the major issues with gravel ballast is frost damage in cold regions. Gravelly soils are known to be not prone to frost action due to their low water retention capacity and high hydraulic ...
Jinung Do
doaj   +1 more source

Comparison of numerical modeling results from laboratory and field obtained unsaturated flow parameters [PDF]

open access: yesMATEC Web of Conferences, 2021
Moisture and suction variation beneath pavement contribute significantly to the volumetric deformation of expansive subgrade in response to climatic loading.
Ahmed Asif   +3 more
doaj   +1 more source

Characterization of subgrade soil mixed with recycled asphalt pavement

open access: yesJournal of Traffic and Transportation Engineering (English ed. Online), 2018
Due to awareness to greener environment, use of recycled asphalt material has become popular in asphalt pavement industry. The use of recycled asphalt pavement (RAP) materials in subgrade soil can be an additional scope of utilizing RAP.
Md Mehedi Hasan   +2 more
doaj   +1 more source

Numerical Method of Flexible Pavement considering Moisture and Stress Sensitivity of Subgrade Soils

open access: yesAdvances in Civil Engineering, 2019
Weaknesses of the subgrade structure induce the asphalt surface diseases and shorten the service life of flexible pavement. However, the resilient modulus (Mr) of subgrade soils is difficult to be evaluated directly since the subgrade is hidden and ...
Jue Li   +4 more
doaj   +1 more source

STABILISASI TANAH LIAT DENGAN KAPUR PADA KONSTRUKSI BADAN JALAN HUTAN DI PULAU LAUT

open access: yesJurnal Penelitian Hasil Hutan (Journal of Forest Products Research), 2017
Subgrade  construction is an important part in forest  road building,  Subgrade soils with a high clay content  could  not be used satisfactorily as forest  road construction material  unless it is treated  to increase its stability.
Rahardjo S Suparto, S Sutopo
doaj   +1 more source

Experimental investigation to study the effect of reinforcement on strength behavior of fly ash

open access: yesJournal of Engineering and Applied Science, 2022
Stabilization of the subgrade soil is a primary and significant phase in highway construction. In constructing a flexible pavement subgrade, soil investigation is an important parameter, as the load is transferred to it under a repetitive vehicle load ...
Salman Asrar Ahmad, Malik Shoeb Ahmad
doaj   +1 more source

Design and technology concepts in providing auxiliary track roadbed stability on permafrost [PDF]

open access: yesE3S Web of Conferences
The main reason for the loss of sustaining capacity in structures on permafrost is connected with settlements that take place in thawing soils of the roadbed in its enclosed spaces in the subgrade. The technogenic impact of the linear structures produces
Neratova Oksana, Zhdanova Svetlana
doaj   +1 more source

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