Abstract
In this research the effect of adding the organic material was studied byusing (animal fertilizers) and the chemical material by using (compound of mixedfertilizer) on the physical ...
Read More ...
In this research the effect of adding the organic material was studied byusing (animal fertilizers) and the chemical material by using (compound of mixedfertilizer) on the physical properties of the soil by studying ( Atterberk limits,maximum dry unit weight) and mechanical properties ( unconfined compressivestrength, cohesion force, angle of internal friction and consolidation).The study includes preparation of a number of disturbed samples, where thesoil was mixed with different percentages of organic and chemical materials(0,2%,4%,6%) by water content equal to the optimum water content of the originsoil used in order to study the effect of different percentages of adding materialson the maximum unit weight . The study also includes the effect of time factorwhere the tests are done in ages (0,1,7,30) days for organic and chemical soil samples prepared and covered in nylon pages perfectly closed until time of thetest referring above.The results obtained from the tests refer to the large effect of organic andchemical content on the engineering properties of the soil. It was noticed that fordifferent times of the test (0,1,7,30) days and for different percentage of organicmaterial (2-6%) increasing in the liquid limit, Plastic limit , angle of internalfriction and compression index(3-25%),(5-47%),(15-75%) ,(38-85%) respectively,and percentage of increase range from (9-25%),(5-47%),(15-85%), (10-75%) byadding percentage of chemical materials (2-6%) for testing time (1-30)daysrespectively.By noticing the testing time in ( 30 و 7و 1 ) days and by adding (2-6%) oforganic material were dropping by intense effect in specific gravity , bearingcapacity, cohesion and dry unit weight range from(3-33 ), (7-76%),(7- 0.5- )و(% 7216%) respectively, while by adding (2-6%) of chemical materials, the droppingwas rang from (4-19% ),(21-61%),(21-62%)and ( 11-22%) for testing time(1-30)days respectively.
