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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Therefore, results of two properly conducted tests by the same operator on the same batch of concrete should not differ by more than 75 mm [3.
The precision statement in Section 10 re? Appendix X1 provides non-mandatory visual rating criteria that may be used to classify the ability of a self-consolidating concrete mixture to resist segregation stability.
Special high-range water-reducing admixtures are typically used to modify the? When the base plate is used, position and shim the base plate so that it is fully supported. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.
The provision of a collar to the top of the mold is useful to reduce the probability of concrete spilling over the mold and on to the base plate. A number in parentheses indicates astj year of last reapproval. Combining values from the two systems may result in non-conformance with the standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.
Measure the diameters to the nearest 1c611 mm [1? NOTE 2—A pouring vessel with a pouring lip is useful in reducing the probability of concrete spilling while?
Complete the entire test from the start of? No further reproductions authorized.
Work Item s – proposed revisions of this standard. Do not subject the work surface or mold to vibration or disturbance. When a halo is observed in the resulting circular spread of concrete, it shall be included as part of the diameter of the concrete. The single-operator standard deviation for slump?
For similar materials, this time period, termed T50, gives an indication of the relative viscosity of the self-consolidating concrete mixture. Combining values from the two systems may result in non-conformance with the standard.
The mold is raised, and the concrete is allowed to spread. Your comments are invited either for revision of this standard or for additional standards and should be atm to ASTM International Headquarters. No evidence of segregation and slight bleeding observed as a sheen on the concrete mass. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
ASTM CCM 14 Standard Test Method for Slump Flow of Self-Consolidating Concrete_图文_百度文库
The multi-operator standard deviation for slump? ASTM D standar Experienced users of this test method have found that it is not necessary to support the mold. Permission rights to photocopy the standard may also be secured from the ASTM website www. Summary of Test Method 4. Raise the mold a distance of c161 75 mm [9 6 3 in.
ASTM C / CM – 18 Standard Test Method for Slump Flow of Self-Consolidating Concrete
The tests were performed using self-consolidating concrete with high and low levels of slump? However, these values do not quantify a concrete property. Remove the mold from the concrete by raising it vertically.
Warning —Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure. NOTE 4—As a precaution, when? Position the lowest point on the rim of the pouring vessel no more than mm [5 in.
Appendix X1 provides a non-mandatory procedure that may be used to provide an indication of relative viscosity of self-consolidating concrete mixtures. 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. A slight mortar halo 10 mm [ 0. These notes and footnotes excluding those in tables and figures shall not be considered as requirements of the standard. Approved April 1, Therefore, this test method is considered applicable to self-consolidating concrete having coarse aggregate up to 25 mm [1 in.
After spreading ceases, two diameters of the concrete mass are measured in approximately orthogonal directions.
The concrete is placed in one lift without tamping or vibration. Link to Active This link will always route to the current Active version of the standard.