AboutDavid L. Russell, PE Expertise I`m a Chemical,Civil and Environmental Engineer and have a number of projects in all phases of the environment.
I have worked in the chemical industry and am active in professional societies, and am currently on an industrial wastes committee for the Water Environment Federation, and have taught courses in remediation in the US and abroad.
I have written one book on Remediation of petroleum Contaminated Sites, and have a second book on PRACTICAL WASTEWATER TREATMENT to be published by John Wiley in September, 2006. I've also written over 30 articles on various elements of environmental problems and cleanup. Most Recently, I have addressed a NATO Scientific and Techical Conference on Ecoterrorism, and have worked with the same group on remediation of sites contaminated with Chemical Warfare Agent materials and othe materials as well. . I can answer q`s about Chemical and Environmental Engineering, land development, air pollution, water pollution, soil and water cleanup, combustion, international environmental problems, industrial processes chemical processes. Civil and Environmental and Chemical Engineering. Overall, I have over 35 years of experience in this area. Note: I do not answer homework questions
Experience I love work in the third world and developing areas
because it is challenging and one can get a sense of accomplishment.
Question Can you tell me what the common ratio for clay and sand is as a fill in, like in boulevards and empty lots?
Answer Jesse:
Fill is an unregulated material so there are no specifications. Ideally, a soil should have 40-50% sand if you want it to be permeable and drain well. So much of that depends upon the local conditions, for example: If you live in New Jersey, or along the East Coast, you will have a higher percentage of sand naturally in your soils. Georgia is famous for it's red clay and most of the clay deposits are found at the foot of the Piedmont (in Georgia). The clay deposits tend to be highly impermeable.
