| 摘要 |
<p>A METHOD OF OBTAINING AN ECO-FRIENDLY CONCRETE ADMIXTURE AND THE CONCRETE ADMIXTURE FROM USED ENGINE OIL ARE DISCLOSED HEREIN. THE METHOD COMPRISES THE STEPS OF EXTRACTING WATER, SLUDGE, AND ANY ADDITIVES FROM THE USED ENGINE OIL, DILUTING THE EXTRACTED USED ENGINE OIL, DISTILLING THE DILUTED USED ENGINE OIL, ADDING ADDITIVES TO THE DILUTED USED ENGINE OIL, AND OBTAINING THE CONCRETE ADMIXTURE THEREFROM. THE CONCRETE ADMIXTURE OF THE PRESENT INVENTION COMPRISING CALCIUM OXIDE, SULFUR TRIOXIDE, PHOSPHOROUS PENTOXIDE, NITRIDES, 0.5-2% BY WEIGHT OF ZINC OXIDE, AND 1-5% BY WEIGHT OF CHLORIDE IONS, HAS BEEN FOUND TO IMPROVE THE WORKABILITY AND DURABILITY OF A CONCRETE COMPOSITION. (FIG. 1)</p> |
