Lateritic Soil Deformability Regarding The Variation Of Compaction Energy In The Construction Of Pavement Subgrade
The performance of the subgrade towards the main deterioration mechanisms must be considered in the pavement structure design. Thus, this paper discusses the resilient modulus and permanent deformation evaluation of a pedological horizon of a Brazilian lateritic soil deposit, comparing samples compacted in the laboratory at the three compaction energies (standard, intermediate and modified) and […]
Influence Of Suction On The Parameters Of The Marchetti Dilatometer Test On A Compacted Residual Soil
This study had the objective to evaluate the application of the Marchetti Dilatometer Test (DMT) on compacted residual soil, analyzing the influence of suction on the parameters obtained. For this, a sample of residual diabase soil was collected and compacted in the laboratory at its optimum moisture content. Granular matrix suction sensors (GMS) were installed […]
Numerical Evaluation Of The Influence Of Compaction And Soil Strength Parameters On Grsw
This paper presents a numerical evaluation, using PLAXIS 2D finite element software, of the effects of varying the distance of the heavy compaction from the face in a geosynthetic reinforced soil wall (GRSW). The main effects studied were the tensions in the reinforcements and the horizontal deformations of the face, including the influence of the […]
Influence Of Coconut Fiber On The Microstructural, Mechanical And Hydraulic Behavior Of Unsaturated Compacted Soil
This study aimed to evaluate the influence of the addition of coconut (coir) fibers on the microstructural, hydraulic and mechanical behavior of an unsaturated compacted soil. Specimens were molded and compacted, forming composites with 0%, 0.1%, 0.5% and 1% fiber in relation to their dry mass. The characterization of pores from the soil and fiber […]
Prediction Of Maximum Dry Unit Weight And Optimum Moisture Content For Coarse-Grained Lateritic Soils
Laboratory compaction of soils is an important aspect in the selection of materials for earthwork construction. Owing to time constraints and concern for depleting resources, it becomes imperative that empirical relationships would be developed to predict compaction parameters, maximum dry unit weight (MDUW) and optimum moisture content (OMC) from easily measured index properties. The aim […]
Unconfined Compression Strength Of An Artificially Cemented Aeolian Dune Sand Of Natal/Brazil
Soil behavior is influenced by the void ratio and bonds between grains. The aim of this study was to describe the strength behavior of an aeolian sand from the dunes of Natal, Brazil, artificially cemented in unconfined compression tests. The influence of cement content and moisture on molding and the validity of using the void/cement […]
Stiffness, Compressibility, And Hydraulic Conductivity Of Compacted Soil Mixtures Submitted To Acidic Percolation
The inadequate disposal of hazardous solid waste has become a potential issue, mainly because of the impacts on the environment and human health. This occurs mainly through the contamination of subsurface soil and groundwater by leachates, which are often of the acidic constitution. To prevent such situations, the study of more efficient waste containment techniques […]
Reinforcing Effect Of Recycled Polypropylene Fibers On A Clayey Lateritic Soil In Different Compaction Degrees
The present research investigates the reinforcing effect of recycled polypropylene (R-PP) fibers on a compacted clayey lateritic soil in different compaction degrees. R-PP fibers of 12 mm length were mixed with the soil in the contents of 0.1 and 0.25% of soil dry weight. Unconfined compression strength tests (UCS), direct shear tests and indirect tensile […]
Evaluation Of The Influence Of Compaction Energy On The Resilient Behavior Of Lateritic Soil In The Field And Laboratory
This article presents the study of the resilient behavior of three soil horizons from a deposit of lateritic soil employed in a pavement structure in Rio Grande do Sul, Brazil. The use of lateritic soils in pavement layers is a common practice in Brazil and due to its peculiarities, its behavior must be investigated. The […]
Experimental, Numerical, And Analytical Investigation Of The Effect Of Compaction-Induced Stress On The Behavior Of Reinforced Soil Walls
The influence of the compaction-induced stress (CIS) is experimentally, numerically and analytically evaluated on the behavior of reinforced soil walls (RSWs), under working stress conditions. Experimental studies have been carried out to evaluate the effect of the compaction condition at the back of the block facing on the behavior of geosynthetic reinforced soil walls using […]
A Laboratory Study Of The Collapse Behaviour Of A Compacted Sabkha Soil
Sabkha soils are saline sediments, which can withstand high loads in dry conditions, but upon wetting, they exhibit significant deformation and low shear strength and hence pose great challenge to engineers. This paper investigates the collapsibility of a compacted sabkha soil of Chott El-Hodna (Algeria) using a modified oedometer, which allows water to percolate through […]
Effects Of Hydraulic Gradient Variation On The Structure And Strength Of A Compacted Tropical Soil
Tropical soils have been extensively studied to evaluate the technical feasibility of their application in hydraulic earthworks such as compacted clay barriers in landfills. In these earthworks, the water flow in the porous medium generates percolation forces that can promote structural changes in the soil, with possible deleterious repercussions on its mechanical and hydraulic properties. […]
