Designation: D/DM – 11Standard Test Methods for One-Dimensional Consolidation Properties of Soils Using Incremental Lo. GeoTesting Express is a provider of Soil Testing Services – ASTM D, Standard Test Method for One-Dimensional Consolidation Properties of Soils. Standard Test Method for One-Dimension Consolidation Properties of Soil Using Incremental Loading.
|Published (Last):||21 November 2007|
|PDF File Size:||11.65 Mb|
|ePub File Size:||9.86 Mb|
|Price:||Free* [*Free Regsitration Required]|
The compressibility of soil particles and pore water is negligible compared to the compressibility of the soil skeleton. The data from the consolidation test are used to estimate x2435 magnitude and rate of both differential and total settlement of a structure or earthfill. Estimates of this type are of key importance in the design of engineered structures and the evaluation of their performance. The faster, easier way to work with standards.
Note 1—The determination of the rate and magnitude of consolidation of soil when it is subjected to controlled-strain loading is covered by Test Method D Consolidation test results are dependent upon the duration of each load increment. Learn awtm about the cookies we use and how to change your settings. It is scientifically undesirable to combine two separate systems within a single standard.
This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. Several other evaluation techniques exist and may yield different estimates of the preconsolidation stress. This test method has been written using SI units; however, inch-pound conversions are given in the gravimetric system, where the pound lbf represents a unit of force weight.
Reporting of test results in units other than SI shall not be regarded as nonconformance with this test method. Note 3—Notwithstanding the statement on precision and bias contained in this standard, the precision of this test method is dependent on the competence of the personnel performing the test and suitability of awtm equipment and facilities used.
Take the smart route to manage medical device compliance. Combining values from the two systems may result in non-conformance with the standard. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but atsm not provided as part of the standard. Work Item s – proposed s2435 of this standard.
The apparatus in general use for these test methods do not have provisions for verification of saturation. The addition of back pressure saturation does not constitute non-conformance to these test methods. The values stated in inch-pound units are approximate and given for guidance only. Two alternative procedures are provided as follows:.
Link to Active This link will always route to the current Active version of the standard. Compressibility, Compression curves, Consolidation, Consolidation coefficient, Consolidation test, Consolidometer, Preconsolidation pressure, Preconsolidation stress, Primary consolidation, Rebound, Secondary compression, Settlement, Swelling: The extent to which partial saturation influences the test results may be a part of the test evaluation and may include application of theoretical models other than conventional consolidation theory.
This test method has been written using SI units; however, inch-pound conversions are given in the gravimetric system, where the pound lbf represents a unit of force weight. The test results can be greatly affected by sample disturbance.
ASTM D Standard
How one applies the results obtained using this standard is beyond its scope. Since c v varies with stress level and loading type loading or unloadingthe load increments with timed readings must be selected with specific reference d245 the individual project. Alternatively, the requesting agency may specify Test Method B wherein the time-deformation readings are taken on all load increments.
Consolidation test results are dependent on the magnitude of the load s2435. Worldwide Standards We can source any standard from d4235 in the world. This test method provides the compression curve with explicit data to account for secondary compression, the asmt of consolidation for saturated materials, and the rate of secondary compression.
For example, it may be desirable to inundate and load the specimen in accordance with the wetting or loading pattern expected in the field in order to best evaluate the response. This implicitly combines two separate systems of units, that is, the absolute system and the gravimetric system. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Alternatively, the test may be performed using an apparatus equipped to saturate the specimen. Evaluation techniques specified in these test methods assume the pore space is fully saturated and are generally applicable to soils naturally sedimented in water.
Accept and continue Learn more about the cookies we use and how to change your settings. You may find similar items within these categories by selecting from the choices below:. Careful selection and preparation of test specimens is required to reduce the potential of disturbance effects.
ASTM D2435/D2435M – 11
Users of this test method are cautioned that compliance with Practice D does not assure reliable testing. Traditionally, the axial stress is doubled for each increment resulting in a load increment ratio of 1. The interpretation method specified by these test methods to estimate the preconsolidation stress provides a simple technique to verify that one set of time readings are taken after the preconsolidation stress and that the specimen is loaded to a sufficiently high stress level.
Your basket is empty. The required maximum stress level depends on the purpose of the test and must be agreed on with the requesting agency. Two alternative procedures are provided as follows:. Search all products by. Tests performed on other unsaturated materials such as compacted and residual weathered or chemically altered soils may require special evaluation techniques. Alternative techniques to estimate the preconsolidation stress may be used when agreed to by the requesting agency and still be in conformance with these test methods.
The apparatus in general use does not have provisions for formal verification of pore pressure dissipation. This implicitly combines two separate systems of units, that is, the absolute system and the gravimetric system. Historical Version s – view previous versions of standard.