In recent trends, the pervious concrete has grasped the attention of civil engineers’ research fraternity because of its special application related to drainage aspects. From the past researches, indicated the significant importance of pervious concrete which is also called as permeable concrete or no-fines concrete, used in concrete flat applications allows water from precipitation and its associated sources to pass directly through, thereby decreasing runoff and permitting groundwater recharging. The method of compaction is one of the most important one in (...) judging the mechanical and durability characteristics of any type of concrete. The current study focuses on the effect of the different types of compaction on the compressive strength of the pervious concrete. The types of compaction adopted in this experimental study are with no compaction, with a tamping rod, with a proctor hammer, with a Marshall hammer, and also with a table vibrator. The range of compressive strength of pervious concrete cubes using different compaction methodologies was arrived in the range of 1.18 MPa to 8.63MPa. Compaction by proctor hammer shows a remarkable increase in compressive strength in terms of 29%, 32%, 59%, and 86% over the Tamping rod, Marshall hammer, no compaction, and Table vibrator. Based on these experimental results, it was observed that table vibrator type of compaction was not suitable for pervious concrete, since cement paste was drained at the bottom of specimens. (shrink)

Based on a survey of 237 managers in Singapore, three measures of organizational ethics (namely, top management support for ethical behavior, the organization''s ethical climate, and the association between ethical behavior and career success) are found to be associated with job satisfaction. The link between organizational ethics and job satisfaction is argued from Viswesvaran et al.''s (1998) organizational justice and cognitive dissonance theories. The findings imply that organizational leaders can favorably influence organizational outcomes by engaging in, supporting and rewarding (...) ethical behavior. (shrink)