ASTM CCM 14 Standard Test Method for Slump Flow of Self- Consolidating Concrete_建筑/土木_工程科技_专业资料。Designation. Testing. • Visual Stability Index (VSI). – Based on slump flow test – ASTM C • Column Segregation Test – ASTM C • Penetration Test – ASTM C Download scientific diagram | The slump flow test (ASTM C). from publication: Correlations between Compressive, Flexural, and Tensile Behavior of.
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Ensure an even distribution of concrete, without rodding the concrete or tapping the sides of the mold, while? Hence, for the purpose of developing a self-consolidating concrete mixture in the laboratory, a relative measure of viscosity is useful. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Work Item s – proposed revisions of this standard. The round robin test program consisted of using single and multiple operators performing 3 replicas of the test using the asgm in both the upright and inverted positions.
The mold is raised, and the concrete is allowed to spread. These notes and footnotes excluding those in tables and? Dampen the sstm surface, removing adtm standing water. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
Other users preferred to adtm the mold with the smaller opening face down, which facilitates the ease of? The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.
The multi-operator standard deviation for slump? A number in parentheses indicates the year of last reapproval. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
However, these values do not quantify a concrete property. Originally approved in NOTE 4—As a precaution, when? Use a base plate in conditions where a? Measure the diameters to the nearest 5 mm [1?
ASTM C Standard
If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. The concrete is placed in one lift without tamping or vibration.
Remove the mold from the concrete by raising it vertically. No evidence of segregation and slight bleeding observed as a sheen on the concrete mass.
Raise the mold a distance of 6 75 mm [9 6 3 in. The precision statement in Section 10 re?
ASTM C / CM – 18 Standard Test Method for Slump Flow of Self-Consolidating Concrete
Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. The tests were performed using self-consolidating concrete with high and low levels of slump? Special high-range water-reducing admixtures are typically used to modify the? Appendix X1 provides non-mandatory visual rating criteria that may be used to classify the ability of a self-consolidating concrete mixture to ashm segregation stability.
The provision of a c161 to the top of the mold is useful to reduce the probability of concrete spilling over the mold and on to the base plate. Warning —Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.
ASTM D standar The single-operator standard deviation for slump? Appendix X1 provides a non-mandatory procedure that may be used to provide an indication of relative viscosity of self-consolidating concrete mixtures. Combining values from the two systems may result in non-conformance with the standard. Appendix X1 provides non-mandatory visual rating criteria that may be used to classify the ability of a self-consolidating c611 mixture to resist segregation stability.
Permission rights to photocopy the standard may also be secured from the ASTM website www. Measure a second diameter d2 of the circular spread at an angle approximately perpendicular to the?
Combining values from the two systems may result in astn with the standard. In addition, viscositymodifying admixtures and other changes in mixture proportions and materials can also in? After spreading ceases, two diameters of the concrete mass are measured in approximately orthogonal directions. When performing the slump? When a halo is observed in the resulting circular spread of concrete, it shall be included as part of the diameter of the concrete.
Therefore, this test method is considered applicable to self-consolidating concrete having coarse aggregate up to 25 mm [1 in. Approved April 1, Current edition approved April 1, Experienced users of this test method have found that it is not necessary to support the mold.