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18 results for “limestone”
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Research ArticleOpen accessIn the abstractEFFECT OF USING STEEL SLAG AGGREGATE ON MECHANICAL PROPERTIES OF CONCRETESultan A. Tarawneh, Emhaidy S. Gharaibeh, Falah M. SarairehThis study presents an evaluation of the physical and mechanical properties and characteristics of steel slag aggregate concrete in comparison with the typical crushed limestone stone aggregate concrete. Hardened concrete consist of more than 70% aggregate due to the high demand in building construction and the increase of the amount of disposed waste material, suppliers and researchers are exploring the … …American Journal of Applied Sciences, Vol. 11, Issue 5 · 10 Feb 2014 · 8,055 accessesView PDFCite
Research ArticleOpen accessIn the abstractDevelopmental Design of Anaerobic Wetland System for Mining Waste Water TreatmentMuhammad Aqeel Ashraf, Mohd. Jamil Maah, Ismail YusoffProblem statement: Tin mining is one of the oldest industries in Malaysia that have started since 1820s. These mining activities have resulted in about 13,700 hectors of tin tailings throughout the peninsula. These tailings have created numerous environmental problems such as threat to natural reserves due to landscape changes, damage to natural drainage, pollution and destruction of natural habitats. Approach: … …American Journal of Environmental Sciences, Vol. 7, Issue 4 · 10 Oct 2011 · 7,509 accessesView PDFCite
Research ArticleOpen accessIn the abstractUse of Surface Energy to evaluate Adhesion of Bituminous Crack Sealants to AggregatesEllie H. Fini, Imad L. Al-Qadi, Taher Abu-Lebdeh, Jean-Francois MassonProblem statement: The performance of bituminous sealants in the field is partly controlled by properties and strength of the sealant-aggregate interface. The thermodynamic work of adhesion represents energy required for reversible separation of the two materials at the interface. The study of fracture includes the energy required for both reversible and irreversible processes during separation. Excess of work of facture … …American Journal of Engineering and Applied Sciences, Vol. 4, Issue 2 · 13 Jul 2011 · 7,884 accessesView PDFCite
Research ArticleOpen accessIn the abstractImpact of Mercury Mine Activities on Water Resources at Azzaba-North-East of AlgeriaFadila Alligui, Abdelhak BoutalebProblem statement: Mercury mineralization occurred in Azzaba (north-eastern Algeria) as a part of mercurial Numidian belt, consists of numerous of Hg deposits (Koudiat Sma, Mrasma, Guenicha, Fendek, Ismail and Ras Elma). These deposits are hosted in a variety of lithologies including sandstone, limestone, breccias and conglomerate. The ores occur as cinnabar deposits in Ypresian-Lutetian formations. Although the quantity and type … …American Journal of Environmental Sciences, Vol. 6, Issue 4 · 31 Aug 2010 · 7,493 accessesView PDFCite
Research ArticleOpen accessIn the abstractNumerical Modeling of Groundwater Flow in Karst Aquifer, Makeng Mining AreaF. M. Rani, Z. H. ChenProblem statement: Making iron ore is one of the largest mining projects in south east of china. Due to the development of mining activities in that site, it has become necessary to increase the depth of exploration. Increase the exploration depth makes the mining tunnels subjected to the karst water inrush. Approach: A hydrological and a hydrogeological model for the … …American Journal of Environmental Sciences, Vol. 6, Issue 1 · 28 Feb 2010 · 7,467 accessesView PDFCite
Research ArticleOpen accessIn the abstractMicrofacies and Sedimentary Environments of Gurpi and Pabdeh Formations in Southwest of IranMohammad BahramiProblem statement: The Upper Cretaceous Gurpi and lower Tertiary Pabdeh formations as units of folded Zagros Zone were studied in three different regions (Tang-e-Abolhiat, Tang-e-Zanjiran and Maharloo) in Fars Province, Iran. Approach: Gurpi formation consisted of thin to medium sized layers of gray marl and marlstone interbedded with thin layers of argillaceous limestone and shale. The dominant microfacies in this … …American Journal of Applied Sciences, Vol. 6, Issue 7 · 31 Jul 2009 · 7,735 accessesView PDFCite
Research ArticleOpen accessIn the abstractMineralogy and Chemistry of Coronadite from Middle Cambrian Manganese Deposits at Wadi Dana, Southern JordanAhmad Al-Malabeh, Tayel El-HasanCoronadite was reported from the upper-most horizons of the Middle Cambrian sediments at two locations in Wadi Dana, central Wadi Araba and Jordan. The unit is composed of dolomite, limestone and shale. Geochemical investigations show appreciable variations in Mn, Pb, Fe, K and Ba contents in the coronadite between the two studied sites. Pb was found to increase downward in … …American Journal of Applied Sciences, Vol. 6, Issue 4 · 30 Apr 2009 · 7,548 accessesView PDFCite
Research ArticleOpen accessIn the abstractAlbian-Cenomanian Zonation (Foraminifers and Calcareous Aglae) in the Northern Fars, IranMahnaz Parvaneh Nejad ShiraziProblem statement: In the middle Cretaceous of Iran, fossil calcareous algae and zonation them with foraminifers are one of the less studied compared to others invertebrate groups such as foraminiferis, mollusks and others. Several stratigraphic units were analyzed in detail and a biostratigraphic zonation of the Albian-Cenomanian rocks of the Fars basin (Sw. Iran) is proposed. Approach: All stratigraphic units … …American Journal of Applied Sciences, Vol. 6, Issue 4 · 30 Apr 2009 · 7,900 accessesView PDFCite