Results 21 to 30 of about 44,442 (295)

Granulometric and Chemical Soil Stabilization of Forest Roads Using Cement [PDF]

open access: yesAnuário do Instituto de Geociências, 2018
This work aimed to analyze the chemical and granulometric stabilization of gravel for forest roads through the use of concrete. The sample was analyzed according to DNIT’s (2006) granulometric range; related to its natural granulometric characteristics ...
Breno Santos Arrivabeni   +3 more
doaj   +1 more source

Assessment Of Designed And Measured Mechanistic Parameters Of Concrete Pavement Foundation

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2019
There are plenty of in situ tests available to examine pavement foundation performance regarding stiffness and support conditions. This study evaluates several in situ tests of the stiffness and support conditions of concrete pavement foundation layers ...
Yang Zhang   +2 more
doaj   +1 more source

Physical stabilization of expansive subgrade soil using locally produced geogrid material

open access: yesSN Applied Sciences, 2021
Article Highlights The strength of weak subgrade soil was strongly improved after the introduction of two locally produced geogrid materials made of polypropylene and high density polyethylene, respectively The geogrid made from polypropylene raw ...
Samson Yonas Aga
doaj   +1 more source

Predicting California Bearing Ratio of Lateritic Soils Using Hybrid Machine Learning Technique

open access: yesBuildings, 2023
The increase in population has made it possible for better, more cost-effective vehicular services, which warrants good roadways. The sub-base that serves as a stress-transmitting media and distributes vehicle weight to resist shear and radial ...
T. Vamsi Nagaraju   +5 more
doaj   +1 more source

Assessment of some geotechnical properties of Nigerian coastal soil: A case-study of Port-Harcourt beach mud

open access: yesJournal of Applied Sciences and Environmental Management, 2018
Soils naturally exhibit variable engineering properties and thus make the geotechnical characterization of soil for sustainable design and  construction of infrastructure imperative.
H.I. Owamah   +3 more
doaj   +1 more source

Study on the Engineering Characteristic of California Bearing Ratio (CBR) of Expressway Subgrade Material [PDF]

open access: yes, 2011
The California Bearing Ratio(CBR) denotes the potential strength of subgrade material and is the important index of evaluating its using performance in expressway.
Bao Jian Zhang   +2 more
core   +1 more source

The influence of CBR parameters of low-frost-susceptible soils on the process of airport pavement design [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2018
The paper presents the issue of layer thickness selection in designing of concrete airport pavements depending on the values of soil substrate calculation parameters.
Jan Marszałek   +2 more
doaj   +1 more source

Recycled materials for sublayers

open access: yesActa Polytechnica CTU Proceedings, 2023
The article focuses on the recycled materials used in sleeper substructure. In the introduction, it summarizes the requirements for bearing layers of railway substructure and recycling of waste construction materials.
Richard Svoboda   +2 more
doaj   +1 more source

DETERMINING THE SUITABILITY OF CLAY AT ITU, AKWA IBOM STATE, NIGERIA FOR ROAD CONSTRUCTION [PDF]

open access: yesGeological Behavior, 2022
Incessant road failures in Nigeria have become an issue of serious concern in recent times as a large portion of states and federal budgets are dedicated to revamping road infrastructures.
Emanuel B. Umoren   +3 more
doaj   +1 more source

The male to female ratio at birth [PDF]

open access: yes, 2014
The factors that influence the male to female ratio at birth are legion. Males are usually born in excess and stress decreases the ratio while wellbeing and good health tends to increase it.
Mamo, Julian, Grech, Victor E.
core   +1 more source

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