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style='tab-interval:36.0pt'> <div class=WordSection1> <h3><span lang=EN-US style='mso-fareast-font-family:"Times New Roman"; mso-ansi-language:EN-US'>Abstract:<o:p></o:p></span></h3> <p class=MsoNormal style='text-align:justify'><span class=GramE><span lang=EN-US style='font-size:10.0pt;mso-ansi-language:EN-US'> </span><span lang=EN-US style='mso-ansi-language:EN-US'> </span><span lang=EN-US style='font-size:10.0pt;mso-ansi-language:EN-US'><span style='mso-spacerun:yes'> </span></span><span style='font-size:10.0pt'>It</span></span><span style='font-size:10.0pt'> has been shown that the strength of concrete depends The cost of river sand is much t that is due excessive cost of transportation from its natural sources. Also amount that is huge <span class=SpellE>of</span> <span class=SpellE><span class=GramE>of</span></span><span class=GramE><span style='mso-spacerun:yes'>  </span>these</span> sources leads to environmental problems. Also transportation that is environmental other constraints make the availability and use of river sand less attractive, hence it is very necessary now to find substitutes or replacements for river sand. The result for the analysis that is sieve out showed that the aggregates fell within the upper and lower limits of grading requirement.<span style='mso-spacerun:yes'>  </span>The<span style='mso-spacerun:yes'>  </span>specific<span style='mso-spacerun:yes'>  </span>gravity<span style='mso-spacerun:yes'>  </span>of<span style='mso-spacerun:yes'>  </span>river sand<span style='mso-spacerun:yes'>  </span>used was<span style='mso-spacerun:yes'>  </span>2.6,<span style='mso-spacerun:yes'>  </span>while<span style='mso-spacerun:yes'>  </span>that<span style='mso-spacerun:yes'>  </span>of<span style='mso-spacerun:yes'>  </span>grit<span style='mso-spacerun:yes'>  </span>was<span style='mso-spacerun:yes'>  </span>determined<span style='mso-spacerun:yes'>  </span>and the results obtained from two outcomes were 2.23 and 2.45, and the found that is average 2.34. The bulk density of river sand was found to be 1550kg/<span class=GramE>m3<span style='mso-spacerun:yes'>  </span>and</span> that of grit<o:p></o:p></span></p> <p class=MsoNormal style='text-align:justify'><span class=GramE><span style='font-size:10.0pt'>was</span></span><span style='font-size:10.0pt'> 1650kg/m3.<span style='mso-spacerun:yes'>  </span><span class=GramE>The<span style='mso-spacerun:yes'>  </span>slump</span><span style='mso-spacerun:yes'>  </span>obtained<span style='mso-spacerun:yes'>  </span>from specimens with different W/C of 0.35, 0.45 and 0.60 ranged from<o:p></o:p></span></p> <p class=MsoNormal style='text-align:justify'><span style='font-size:10.0pt'>51  86mm. The concrete produced from 100% grit as fine aggregate with a water-cement ratio of 0.45, <span class=GramE>produced<span style='mso-spacerun:yes'>  </span>a</span><span style='mso-spacerun:yes'>  </span>maximum strength that is compressive of N/mm3<span style='mso-spacerun:yes'>  </span>at the curing age that is highest in days, while sand<o:p></o:p></span></p> <p class=MsoNormal style='text-align:justify'><span class=GramE><span style='font-size:10.0pt'>alone</span></span><span style='font-size:10.0pt'> as fine aggregate in one of the mix that is concrete produced<span style='mso-spacerun:yes'>  </span>the<span style='mso-spacerun:yes'>  </span>least<span style='mso-spacerun:yes'>  </span>compressive<span style='mso-spacerun:yes'>  </span>strength<span style='mso-spacerun:yes'>  </span>of<span style='mso-spacerun:yes'>  </span>17.33<o:p></o:p></span></p> <p class=MsoNormal style='text-align:justify'><span class=GramE><span style='font-size:10.0pt'>N/mm3.</span></span><span style='font-size:10.0pt'><span style='mso-spacerun:yes'>  </span>Hence<span class=GramE>,<span style='mso-spacerun:yes'>  </span>the</span><span style='mso-spacerun:yes'>  </span>use<span style='mso-spacerun:yes'>  </span>of<span style='mso-spacerun:yes'>  </span>grit<span style='mso-spacerun:yes'>  </span>in<span style='mso-spacerun:yes'>  </span>construction<span style='mso-spacerun:yes'>  </span>is considered more economical it is commonly available at different quarry sites since it offers optimum utilization and.<o:p></o:p></span></p> <p class=MsoNormal style='text-align:justify'><b><span lang=EN-US style='mso-fareast-font-family:"Times New Roman";mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></b></p> <p class=MsoNormal style='text-align:justify'><b><span lang=EN-US style='mso-fareast-font-family:"Times New Roman";mso-ansi-language:EN-US'>Keywords </span></b><span lang=EN-US style='mso-fareast-font-family:"Times New Roman"; mso-ansi-language:EN-US'><o:p></o:p></span></p> </div> </body> </html>