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43
Vol

Circular Footing on Geocell-Reinforced Granular Residue from Precious Gem Processing over a Sand Bed

November 06, 2019
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 g...
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43
Vol

Sample Quality Assessment: Comparison Between Brass Shelby Tubes and Reinforced PVC Tube Samplers

May 20, 2020

Laboratory tests were conducted in soft clay deposits at the Macae/RJ airport in order to obtain geotechnical parameters for a new runway design. The quality of soil samples, extracted with both brass tube (thin-walled) and reinforced PVC tube (thick-walled) soil samplers, was assessed. Both samplers were 700 mm long, with a 7 degree chamfered cutting e...

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43
Vol

Influence of Weathering and Correlations Between Wave Propagation Velocity and Durability with Physical and Mechanical Parameters in Phyllites

April 22, 2020
Ultrasonic longitudinal wave velocity (Vp) and durability are characteristics largely determined in geotechnical evaluations. These properties are useful in the analysis of weathered rocks because they usually have good relationships with physical and mechanical properties of rocks. Additionally, the tests to obtain these parameters are easy to perform. However,...
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43
Vol

Modifications in the Chemical and Mineralogical Composition of Compacted Mature Residual Soil Submitted to the Percolation of Acidic Leachates

January 29, 2020
The main goal of this paper is to evaluate the chemical and mineralogical composition of a compacted residual clay soil with the addition of Portland cement and under different compaction conditions to observe and to understand the chemical and mineralogical changes that these structures undergo. Results of chemical and mineralogical composition of compacted spe...
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