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select sand & gravel products: black & blue grey crushed rock, washed round, river rock & landscape rock, materials accepted for recycle, ground covercompost, sand & concrete mix and much more at randles sand & gravel call us: 800.socio-economic consequences of sand mining along the victory river in port harcourt, nigeria simeipiri wenike johnbull and ibama brown epartment of urban and regional planning, rivers state university, port harcourt, nigeria. authors contributions this work was carried out in collaboration between both authors. author swj designed the the increase in the demand for sand and gravel for construction and other purposes such as flood control has placed immense pressure on the environment where sand and gravel resources occur. this study was carried out to determine the environmental effects of sand and gravel mining in luku, north central nigeria, using field observations and laboratory analysis of soil samples.
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the environmental impacts of sand and gravel in nzhelele valley, limpopo province, south africa where there is an increase in demand for sand and gravel for construction purposes. the extraction of sand and gravel from river, stream terraces, floodplain and channels, conflicted with othergravel cost per yard. bulk gravel costs $15 to $75 per yard on average. crushed concrete, sand and gravel mix, and crushed shells are the cheapest stones at $15 per yard. crusher run, pea gravel, steel slag, and river rock typically cost $50 per yard or more.the use of only makurdi river sand as fine aggregate and gravel to produce grade concrete will cost 16,559 a value lower than 16,580 and 16,622 obtained with the use of makurdi river sand partially replaced with 10% and 30% crushed granite fine respectively.
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