Ahmed Mahdi

• Al-Furat Al-Awsat Technical University

The hydraulic conductivity (k) of unsaturated soil overlying shallow groundwater was measured based on a new hydrologic theory with a higher accuracy and greater convenience. The hydraulic conductivity was obtained via the average accumulated water depth after a period longer than 24 h based on infiltration capacity data extension of the Horton and...

In the current investigation, four reinforced concrete beams with square cross sectional area were poured and tested up to failure under the action of three-point loads. Three of them were designed to contain small web openings of different shapes, square, rectangular and circular while the other beam had no openings (control beam) for the purpose...

Environmental pollution due to CO 2 emissions from the cement industry and the depletion of the natural resources of the aggregate used in the concrete industry call for the need to find alternatives to reduce these harmful effects. Some of these alternatives include the use of supplementary cementitious materials and the reuse of wastes from other...

The Al-Najaf sea is a natural groundwater depending depression reservoir. The increase in uncontrolled dumping of solid waste in nearby areas and the use of sewage and animal manure as agricultural enhancing agents raise the fear of threatening the natural life in this lake by increasing metal concentrations in sediments. Forty-eight samples of sed...

In the present study, the chemical analysis, related to heavy metals (Pb, Ni, Zn, Mn, and Fe) which considered the main source of pollution in soils that come from several sources, was carried out near a three fuel stations to reveal their effect on heavy metals in the nearby soils. Samples were collected from soils which are near to three Fuel sta...

A hydrogeologic model has been developed for rehabilitating subsurface bearing layers that isolated by no flow boundaries which preventing lateral seepage such as antic or sink lines of mountainous topology or artificial barriers. Rehabilitation of Tyass area as a case study requires a management based upon estimating the water demand (WD), a formu...

A brief study is performed including mathematical derivation, conceptualization and computer programing to develop 2D comprehensive mathematical model to dealing with any environmental problems especially that concerning pollution accident. The model is capable to be used for solving a point, line and area sources. The current pollution process in...