ASTM D2166 00 PDF
Download Citation on ResearchGate | On Jan 1, , ASTM and others published D standard test method for unconfined compressive strength of. definitions of terms. 1 This test method is under the jurisdiction of ASTM Committee D18 on Soil and Last previous edition approved in as D – 00e1. Page 1. ASTM D Unconfined Compressive Strength. Page 2. Page 3.
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The procedures used do not consider material variation, purpose for obtaining the data, special purpose studies, or any considerations for the user’s objectives; and it is common practice to increase or reduce significant digits of reported data to commensurate with these considerations. For stabilization of expansive clay, three different doses of CaOH, namely, 6, 8, and 10 percent of its dry weight, were aggregated to each sample.
These soils are mainly of the expansive type and show volumetric instability due to humidity variations. This procedure is supposed to increase soil density.
The study of different materials for the fabrication of pieces to substitute bricks of burned clay has been the aim of many researchers worried about the environment, the use of natural resources, and the recycling of industrial trashes.
These were compared dd2166 commercial pieces for masonry, asrm under the same norm. Carrasco Urrutia, and L. Link to Active This link will always route to the current Active version of the standard. The rate of humidity absorption depends greatly on cement content.
The increase in density causes increases in resistance. To achieve asym, the trash expansive soil was stabilized with CaOH to eliminate its volumetric changes and then it was compacted at different energies per volume cubic meter for controlling different densities and to obtain an optimal-controlled density and optimum moisture to assure a larger strength in the material.
The specific energy of soil compaction is the compaction effort applied to the soil per unit volume and is determined using ashm weight, height of drop, and number of blows of a hammer to compact a volume of soil placed in layers into a mold.
Indeed, at that d266 there is little or nil variation of the liquid limit and the plastic index, even increasing the CaOH content. This is an open access article distributed under the Creative Commons Attribution Licensewhich permits unrestricted use, distribution, and reproduction in any medium, provided the asrm work is properly cited.
The compacting procedure for the stabilized soil was compaction by layers with a weight falling from a controlled height Proctor compaction procedure. Using the activity criteria the soil has a highly expansive potential [ 2 ]. Indexed in Science Citation Index Expanded.
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The liquid limit was This probably occurs due to the continuous increase in compaction energy that causes the soil particles and humidity to achieve their best accommodation: Then, they were subjected to tests for determining the break modulus and the strength to first fissure [ 26 ] for comparison with commercial bricks. In this respect, there have been efforts for producing these bricks with fly ashes and a small percentage of CaOH. In addition the mechanical properties of the composite increase with time.
Composite strength for different specific compaction energies and ages.
Geotechnical Lab – Department of Civil and Construction Engineering | KSU
To determine these values, test specimens were prepared with dimensions: Therefore, there are two main factors that determine the best density of soil material: S — Soil Mechanic. We conclude that in expansive soils treated with lime two optimal compaction energies can be considered with respect to the variation of a determined optimum moisture: Advances in Materials Science and Engineering.
This was done to define the best behavior and strength. Strength of Materials CVE With trash expansive clay, a brick with CaOH with optimal-controlled density could be obtained. Expansive soils represent a problem for light buildings over them because of volumetric instability.
Referenced Documents purchase separately The documents listed below atsm referenced within the subject standard but are not provided as part of the standard. The objective of this study is to use this trash expansive soil via a composite material, soil-CaOH, to astmm bricks of optimal and controlled compaction energy for masonry, which is neglected in the production of this kind of bricks. Note The determination of the unconsolidated, undrained strength of cohesive soils with lateral confinement is covered by Test Method D