The empirical study of gradation of crushed sand concrete properties using six sigma DMAIC methodology

Fine aggregate plays a key role as filler material in concrete’s fresh and hardened properties. Generally, Portland cement concrete occupies 70-85% by weight 60-70% mass. In Pakistan, Lawrence pur the sand only that meets ASTM standards. But due to heavy transportation costs, it is not cost-effective use most parts of country. The tests were carried out accordance with standards, mix designed three water-cement ratios 0.40,0.45, 0.50 called for mixing procedure. At 28 days curing, an M30 comprising five control mixes including parent was evaluated compared concrete. This experimental work aimed enhance properties such workability mix, compressive, flexural strengths using locally available Jhelum River gradation crushed (passing sieve #4, waste product Sargodha coarse aggregate), s fine material. Using six sigma DMAIC Methodology 9 defects have been identified corrective measures taken improve quality mix. results derived from this show adding 50% increases compressive strength 27% 20% which makes according Standards. alternative natural river efficient safe also reduces construction cost 10% comparison lawerancepur sand.