Materials selection for concrete overlays : the final report Page: 62
xviii, 192 p. : col. ill. ; 28 cm.View a full description of this report.
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7 sacks
6.5 sacks 6 sacks
Cement ContentFigure 4.3. Workability comparison at FA/ (FA +CA)
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05.5 sacks
= 0.407 sacks 6.5 sacks 6 sacks 5.5 sacks
Cement Content
Figure 4.4.: Workability comparison at FA/ (FA +CA) = 0.45
Results indicated that the equivalent 517 lbs (5.5 sacks) of cement content performed
poorly, even with the maximum manufacturer dosage of WRDA 82. With the same mixture,
double and triple dosages of WRDA 82 were added to see the effects. HRWA was not used
because HRWA is not typically used in concrete overlay construction. As shown in Figure 4.5,
the flow did not increase. Based on this fiber screening experiment, it was decided that 517 lb
(5.5 sacks) of cement content alone will result poor workability; therefore, the test variable was
removed.62
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Kim, Dong H.; Fowler, David W.; Ferron, Raissa P.; Trevino, Manuel M. & Whitney, David P. Materials selection for concrete overlays : the final report, report, July 2012; Austin, Texas. (https://texashistory.unt.edu/ark:/67531/metapth303706/m1/82/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.