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In fluid mechanics, materials science and Earth sciences, permeability (commonly symbolized as k) is a measure of the ability of a porous material (often, a rock or an unconsolidated material) to allow fluids to pass through it. Symbol used to represent in situ permeability tests in geotechnical drawings
The Giatec product range of nondestructive testing devices can be divided into three areas: laboratory devices, which include products that can be used to measure the permeability of concrete specimens; hand-held portable field inspection devices that can be used to conduct in-situ condition assessment of concrete structures such as bridges; [17] and embedded wireless sensors for real-time ...
Sha'at and P. A. M. Basheer, "A controlled permeability formwork liner - its effects onsurface absorption and permeability of concrete", Proceedings, 2nd International Conference on Inspection, Appraisal, Repairs and Maintenance of Building and Structures, Jakarta, Indonesia, Eds:, Vol. CI-Premier Conference, Singapore, 1992, 28-29 September ...
An ultrasonic pulse velocity test is an in-situ, nondestructive test to check the quality of concrete and natural rocks. In this test, the strength and quality of concrete or rock is assessed by measuring the velocity of an ultrasonic pulse passing through a concrete structure or natural rock formation.
The rate of axial deformation is kept constant, i.e., strain is controlled. The test allows the sample and the pore pressures to fully consolidate (i.e., adjust) to the surrounding stresses. The test may take a long time to allow the sample to adjust, in particular low permeability samples need a long time to drain and adjust strain to stress ...
In ex situ mixing, the hazardous materials are excavated, then machine-mixed with a certain bonding agent. This new, less-hazardous material is then deposited in a designated area, or reused on the initial site. [5] From 1982–2005, ex-situ S/S technologies have accounted for 80% of the 217 projects that were completed. [1]
Crosshole sonic logging (CSL) is a method to determine the structural integrity of drilled shafts and other concrete piles. The CSL method is considered to be more accurate than sonic echo testing in the determination of structural soundness of concrete within the drilled shaft inside of the rebar cage. This method provides little indication of ...
The cone penetration or cone penetrometer test (CPT) is a method used to determine the geotechnical engineering properties of soils and delineating soil stratigraphy. It was initially developed in the 1950s at the Dutch Laboratory for Soil Mechanics in Delft to investigate soft soils. Based on this history it has also been called the "Dutch ...