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Full-Text Articles in Construction Engineering and Management
Soil-Stiffness Gauge For Soil Compaction Control, Purdue Ect Team
Soil-Stiffness Gauge For Soil Compaction Control, Purdue Ect Team
ECT Fact Sheets
Soil stiffness and modulus are the most meaningful engineering parameters for soil structures. Until now, there were no practical and reliable means to rapidly measure the in-situ soil stiffness and elastic modulus of soils. The Humboldt Stiffness Gauge (HSG) enables both the design and construction to be controlled by the same physical parameters, namely stiffness and modulus. Used as a compaction process control tool, it brings the contractor closer to the real purpose of compaction, which is to improve the stability of the soil over the life of the structure. The HSG's sensitivity and ability to rapidly take large amounts …
Deep Mixing Method For Ground Improvement, Purdue Ect Team
Deep Mixing Method For Ground Improvement, Purdue Ect Team
ECT Fact Sheets
Many causes including presence of peats and highly organic soils in construction projects increase the risk of foundation failure or inadmissible settlements due to low strengths, high compressibility, prolonged creep, and low permeability. The Deep Mixing Method (DMM), also known in parts of the U.S. as soil mixing, is an in situ soil treatment and improvement technology mechanically blending the in situ soil with cementitious materials that are referred to as binders using a hollow stem auger and paddle arrangement.
Osterberg Load Cell, Purdue Ect Team
Osterberg Load Cell, Purdue Ect Team
ECT Fact Sheets
Establishing the bearing capacity of piles, piers, and shafts is difficult and expensive for engineers to determine. The Osterberg Load Cell allows geotechnical engineers to determine the capacity of drilled shafts, piers, and driven piles. It is used to test for the bearing and skin friction forces that can be developed in the soil through which the shaft, pier, or pile is placed.
Plasma Arc Torch Technology Stabilization And Ground Improvement, Purdue Ect Team
Plasma Arc Torch Technology Stabilization And Ground Improvement, Purdue Ect Team
ECT Fact Sheets
This technology represents an additional alternative for stabilizing weak foundation soils upon which buildings, bridges, roads or other structures are to be constructed. A plasma is a gas that has been ionized by the electric arc of a plasma torch and can therefore respond to electrical and magnetic fields. Plasma arc technology can create plasma using almost any type of gas (oxygen, nitrogen, carbon monoxide, air, etc.) and in a wide range of pressures (vacuum to 20 atmospheres).