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AASHTO TP 74-09
- Standard Method of Test for Passing Ability of Self-Consolidating Concrete (SCC) by J-Ring
- standard by American Association of State and Highway Transportation Officials, 2009
- Publisher: AASHTO
$20.00$40.00
This test method covers determination of the passing ability (Note 1) of self-consolidatingconcrete (SCC) by the J-Ring method, both in the laboratory and in the field. SCC is defined as ahighly workable concrete that can flow through densely reinforced or complex structural elementsunder its own weight without vibration and adequately fill voids without experiencing segregationor excessive bleeding.
Note 1--Passing ability is defined as the ability of SCC to flow through openings such as thespaces between reinforcing bars without segregation or without aggregate blocking. Blocking isdefined as the condition in which pieces of coarse aggregate combine to form elements largeenough to obstruct the flow of the SCC between reinforcing bars or other obstructions in theconcrete formwork.
The values stated in either SI units or inch-pound units are to be regarded separately as standard.Within the text, the inch-pound units are shown in brackets. The values stated in each system arenot exact equivalents; therefore, each system shall be used independently of the other. Combiningvalues from the two systems may result in nonconformance with the standard.
Note 1--Passing ability is defined as the ability of SCC to flow through openings such as thespaces between reinforcing bars without segregation or without aggregate blocking. Blocking isdefined as the condition in which pieces of coarse aggregate combine to form elements largeenough to obstruct the flow of the SCC between reinforcing bars or other obstructions in theconcrete formwork.
The values stated in either SI units or inch-pound units are to be regarded separately as standard.Within the text, the inch-pound units are shown in brackets. The values stated in each system arenot exact equivalents; therefore, each system shall be used independently of the other. Combiningvalues from the two systems may result in nonconformance with the standard.
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