Principles of Pavement Design

Yoder, Eldon J

doi:10.1002/9780470172919

Cited by 756 publications

(421 citation statements)

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“…The testing procedure employed will depend on the type of material being tested. Granular soils were not greatly affected by swelling during the soaking period, and, therefore, the surcharge weights are not significant during this part of test [8]. In contrast, claylike soils, which are greatly affected by swelling pressures, will yield CBR values depending upon the weight of the surcharges used during the soaking period.…”

Section: California Bearing Ratio (Cbr) Testsmentioning

confidence: 95%

Comparison of Geotechnical Properties of Laterite, Kaolin and Peat

Yusoff

Bakar

Wijeyesekera

et al. 2015

AMM

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Abstract. Geotechnical properties are influenced by the different types of soil. The objective of this study was to investigate the behaviour of geotechnical properties on different types of soil. This paper compares some geotechnical properties of Kaolin, Laterite and Peat. Laterite was collected from Bukit Banang while Peat sample was collected from Parit Nipah, both locations were in Batu Pahat, Johor. Meanwhile, kaolin that was used in this research was manufactured kaolin. A laboratory testing program consists of basic properties tests were conducted in order to obtain general information on the materials (e.g Natural moisture content, Atterberg Limit, Specific gravity, grain size analysis, chemical composition and pH). Further tests have been carried out in determining the geotechnical properties of the soil which evaluates its behaviour for design and construction suitability. The results showed that the Natural/initial moisture content for, peat is higher than laterite and kaolin. Meanwhile Specific gravity for Peat is the lowest among kaolin and laterite. It was also found that the pH of all soil is acidic which lay in the range of 3.76-5.95.The UCS and CBR is compacted in same energy and been tested. This paper summarizes the result of analysis performed on all tests conducted. From the study it can be summarized that geotechnical properties of a soil is highly depending on its type.

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Section: California Bearing Ratio (Cbr) Testsmentioning

confidence: 95%

Comparison of Geotechnical Properties of Laterite, Kaolin and Peat

Yusoff

Bakar

Wijeyesekera

et al. 2015

AMM

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“…El envejecimiento se ha asociado a factores ambientales: radiación térmica, tiempo de radiación, temperatura ambiente, rayos UV, ozono, oxígeno, evapotranspiración, precipitación y humedad relativa (Yoder et al, 1975).…”

Section: Definición Del Sistemaunclassified

Modelación del envejecimiento de los pavimentos asfálticos con la metodología de la superficie de respuesta

Chávez-Valencia

Hernández-Barriga

Manzano-Ramı́rez

2011

IIT

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Descriptores• deterioro • envejecimiento • pavimento asfáltico • MSR • modelación y asfaltos ResumenEn la presente investigación se realizó la modelación del envejecimiento de una carpeta asfáltica por medio de la Metodología de Superfi cie de Respuesta (MSR). Se elaboraron muestras cilíndricas tipo Marshall, que fueron colocadas en un horno bajo las condiciones de tiempo y temperatura establecidos por las condiciones ambientales de la región geográfi ca donde se construyen pavimentos asfálticos con el AC-20 de la Refi nería Ing. Antonio M. Amor, los cuales fueron codifi cados en la MSR, con esto se determinaron los modelos que predicen el cambio de la estabilidad Marshall (ΔL) y del fl ujo (ΔF), así como la volatilización del material (VM). Además, se extrajeron muestras cilíndricas de una carpeta asfáltica piloto para determinar el error de modelación, observando que el material volatilizado predicho por el modelo VM fue muy cercano al real, no así para los modelos de ΔL y ΔF, posiblemente asociado a los factores ambientales que no fueron considerados al inicio de la investigación. Abstract

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“…Yoder [13] and Friberg [14] proposed that for dowel bar calculations, only a distance 1. and 75kN were considered, an applied force of +/-2kN and +/-6kN was required.…”

Section: Load Magnitudementioning

confidence: 99%