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  • 标题:Experimental Investigation in Developing Low Cost Concrete from Paper Industry Waste
  • 本地全文:下载
  • 作者:R. Srinivasan ; K. Sathiya ; M. Palanisamy
  • 期刊名称:Bulletin of the Polytechnic Institute of Jassy, Constructions, Architechture Section
  • 印刷版ISSN:1224-3884
  • 电子版ISSN:2068-4762
  • 出版年度:2010
  • 卷号:LVI
  • 期号:01
  • 页码:43-56
  • 出版社:Gheorghe Asachi Technical University of Jassy
  • 摘要:Over 300 million tones of industrial wastes are being produced perannum by chemical and agricultural process in India. These materials pose problems ofdisposal and health hazards. The wastes like phosphogypsum, fluorogypsum and red mudcontain obnoxious impurities which adversely affect the strength and other properties ofbuilding materials based on them. Out of several wastes being produced at present, the useof phosphogypsum, fluorogypsum, lime sludge, hypo sludge, red mud, and mine tailing isof paramount significance to protect the environment.Paper making generally produces a large amount of solid waste. Paper fibers canbe recycled only a limited number of times before they become too short or weak to makehigh quality paper. It means that the broken, low-quality paper fibers are separated out tobecome waste sludge. All the inks, dyes, coatings, pigments, staples and "stickies" (tape,plastic films, etc.) are also washed off the recycled fibers to join the waste solids. Theshiny finish on glossy magazine-type paper is produced using a fine kaolin clay coating,which also becomes solid waste during recycling. This paper mill sludge consumes alarge percentage of local landfill space for each and every year. Worse yet, some of thewastes are land spread on cropland as a disposal technique, raising concerns about tracecontaminants building up in soil or running off into area lakes and streams. Somecompanies burn their sludge in incinerators, contributing to our serious air pollutionproblems. To reduce disposal and pollution problems emanating from these industrialwastes, it is most essential to develop profitable building materials from them. Keepingthis in view, investigations were undertaken to produce low cast concrete by blendingvarious ratios of cement with hypo sludge.This project is concerned with experimental investigation on strength of concreteand optimum percentage of the partial replacement by replacing cement via 10%, 20%,30%, 40%, 50%, 60% and 70% of Hypo Sludge.
  • 关键词:hypo sludge; pozzolanic property; supplementary cementitious materials.
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