Determination of the Resilient modulus MR for the lime stabilized clay obtained from the repeated loading CBR tests
Journal Title: Annals of Warsaw University of Life Sciences – SGGW. Land Reclamation - Year 2012, Vol 44, Issue 2
Abstract
The main aim of this paper is to prove that CBR repeated test is useful to give an adequate like Unconfined Cyclic Triaxial test parameters for design the pavement and subgrade soils. That parameter is the Resilient modulus (MR) which is the elastic modulus based on the recoverable strain under repeated load. Resilient modulus MR, is an important parameter which characterizes the subgrade’s ability to withstand repetitive stresses under traffic loadings. The 1993 AASHTO guide for design of flexible pavements recommends the use of MR. The additional aim is connected with the concept of sustainable development. For many countries, where resources are at premium, it is very important that stabilized local soil can be used for road construction. For ensuring that stabilized clay can be used for pavement material standard compaction, CBR and repeated CBR tests were performed. In that paper parameter MR of the subgrade lime stabilized clayey soil by laboratory CBR repeated test were determined using for calculation formulas from triaxial cyclic test. Based on AASHTO empirical equation the static CBR values using back analysis was also calculated. Finally both values of CBR determined and calculated were compared.
Authors and Affiliations
Wojciech SAS, Andrzej GŁUCHOWSKI, Alojzy SZYMAŃSKI
Keywords
Related Articles
- EP ID EP161493
- DOI -
- Views 122
- Downloads 0
The frequency of occurrence of extreme and detrimental meteorological conditions for vegetation of crops in Poland (1971–2010)
The subject, and aim of this study is the comparison of the frequency of occurrence of thermal, precipitation and pluvio-thermal conditions detrimental to agriculture in Poland during two periods: 1971–2000 and 1981–2010...
Doświadczalna i numeryczna analiza niezatopionego wypływu spod zasuwy
[i][/i]Niezatopiony wypływ wody spod zasuwy opisano dwoma modelami: uproszczonym, wyprowadzonym na podstawie teorii płaskiego przepływu potencjalnego (PF), i modelem o większym stopniu złożoności, bazującym na uśrednieni...
The length of the hydraulic jump on the basis of physical and numerical modeling
The outcomes of physical and numerical modeling of the sluice gate outfl ow are presented. The measured velocity distributions in verticals of a physical model were compared with results of numerical modeling, obtained u...
Spatial analysis of vegetal cover and sediment yield in Tapacurá river catchment based on remote sensing and GIS
Mapping and assessment of erosion risk is an important tool for planning of natural resources management, allowing researchers to propose modifi cation in land-use properly and implement more sustainable management strat...
Flood threat to the territories below the water dam in conditions of occurrence of extreme hydrological phenomena
The course of the flood in July 2001 and passage of the freshet wave through the water reservoir Chańcza on the Czarna Staszowska River was analyzed. Culmination of this wave equaling 418.62 m3•s–1 was two times higher t...