Geotechnical And Other Characteristics Of Cement-Treated Low Plasticity Clay
This research work examines the utilization of cement in order to improve low plasticity clay soil. The soil samples treated with 2, 4 and 6% cement percents and cured for different curing times extended to 90 days. Laboratory investigations include unconfined compression, indirect tensile, gas permeability and microstructural tests, which were conducted on the tested […]
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 […]
An Experimental Study On Improvement Of Cohesive Soil With Eco-Friendly Guar Gum
Recently, the demand for environmentally friendly products has been increasing worldwide. In this study, the improvement of cohesive soil with a biopolymer material (Guar Gum), which is a type of additive and organic, environmentally friendly, is investigated. For this purpose, various laboratory tests have been conducted on the biopolymer-added soils, including the compaction test, the […]
Geogrid Mechanical Damage Caused By Recycled Construction And Demolition Waste (Rcdw) Under In-Field Cyclic Loading
Despite the advances observed over the last decade, Brazil still suffers from the scarce use of recycled construction and demolition waste (RCDW). On the other hand, most of the roads in the country are unpaved and present low loading support. In this context, the construction of geosynthetic reinforced unpaved roads with RCDW could stimulate the […]
Geosynthetic Encased Column: Comparison Between Numerical And Experimental Results
The use of granular column is one of the ground improvement methods used for soft soils. This method improves the foundation soils mechanical properties by displacing the soft soil with the compacted granular columns. The columns have high permeability that can accelerate the excess pore water pressure produced in soft soils and increase the undrained […]
Mechanical Behavior Analysis Of Polymer Stabilized Gold Ore Tailings
Chemical stabilization for mining tailings is a promising alternative to enable their use as construction materials. For this, it is necessary to evaluate the behavior of these composites to ensure minimum design requirements. This research aims to demonstrate that an addition of 15% of polymeric solution content, corresponding to 6% of polymer by tailings mass […]
Sample Dimension Effect On Cement-Stabilized Sandy Soil Mechanical Behavior
Stabilized soil with cement has been a widely used solution in geotechnical projects and requires the molding of numerous specimens to investigate their properties in destructive tests, restraining the reuse for other analysis. Also, distinct sample dimension has been utilized in the research without taking this effect into account. Recognizing these needs, the height and […]
Circular Footing On Geocell-Reinforced Granular Residue From Precious Gem Processing Over A Sand Bed
Geocell is a tridimensional confinement structure used for soil reinforcement, which significantly improves the performance of foundation systems. Aiming at a more sustainable engineering project and promoting a correct destination of a residual material, an alternative to fill the geocell is through the use of precious gem processing waste. The performance of geocell reinforcement filled […]
Application Of Grouting Intensity Number In Spillway Foundation At Jirau Hpp/Ro
Brazil has one of the largest hydroelectric parks in the world and important ventures for the world ranking have been executed in the country – to cite the most recent, Jirau and Belo Monte Hydraulic Power Plants (HPP). This emphasizes the importance in the continuous study of techniques and theories commonly used, in order to […]
