Search

ABSTRACT Molasses is a by-product of sugar production; which not only improves concrete fluidity but also prevents early hardening of cement paste. Moreover, the usage of recycled aggregates in concrete [...]

ABSTRACT This experimental and analytical investigation is conducted to develop a sustainable recycled concrete by incorporating ceramic waste as coarse aggregate. In order to achieve the designed goal, conventional aggregate [...]

AbstractThe effect of replacement of Portland cement using glass powder on fresh and mechanical properties of self-compacting concrete (SCC) was investigated in this study. A standard SCC mix design was used with substitution with either fly ash or glass powder of different fineness and replacement levels. Compressive strength, splitting tensile strength, and elastic modulus were measured at 7, 28, 90, 180, 365, and 545 days. Rheological testing found that SCC containing glass powder had consistently higher yield shear stress than the control despite testing being conducted at optimum slump flow levels. Replacement of Portland cement with glass powder was found to reduce strength performance in the shorter-term but longer-term strengths were comparable. Tensile strength and elastic modulus of SCC containing glass powder were consistent with design guidelines and can be reliably predicted from compressive strength as is typically used in structural design.

The primary purpose of this study was to explore the indirect effect of intrinsic religiosity and extrinsic religiosity on ethical intention through ethical judgment. A review of the literature shows the need for more research at the intersection of religiosity and ethics, especially in non-Western, highly religious contexts. This research, therefore, addresses the research question: Do intrinsic religiosity and extrinsic religiosity indirectly impact ethical intention through influencing the ethical judgment of management professionals?Data were gathered from members of the Management Association of Pakistan through a questionnaire. Pearson correlation results show the overall trend between the constructs of interest. Multiple regression results show that both intrinsic religiosity and extrinsic religiosity are significant positive predictors of ethical judgment. Ethical judgment was also found to be a significant, positive predictor of ethical intention. The main contribution of the study is evidence that ethical judgment acts as a mediator between religiosity (whether intrinsic or extrinsic) and ethical intention in a non-Western highly religious context. This research also found that intrinsic religiosity impacts ethical intention directly as well as indirectly through ethical judgment, but extrinsic religiosity influences ethical intention only through its effect on ethical judgment. We discuss our results along with practical and research implications, and limitations of this research are highlighted to guide future research.