Vaishnavi Welekar, Rashmi shende , Shradha bagde , Ruchika Gajbhiye , Pranju Nagdevte , Diksha Menghare
Fly ash production in India is in itself posing an environmental problem. Therefore it is necessary to consume.fly ash in a way that would be helpful in construction Of important civil structures. Like in Construction of embankments and backfilling behind retaining walls presents problems of settlement and stability. Use of appropriately strong but lightweight material in such constructions can solve many problems. Light weight factory manufactured expanded polystyrene (EPS) geo-foam blocks of standard sizes are being used in several countries (Norway, Netherlands, US, Japan, France, Germany, UK etc) since about 1990. Further development tin this res pect was a composite lightweight geo-material made from soil + EPS beads + 10 to 15 % cement. It’s use in many geo-constructions started from about 2000. However, this lightweight geo-material technology has not yet found its plin geotechnical construction practice in our country. Various technologies and studies have indicated possible aspects of improvement in the improvement of the geo material of EPS- Fly ash. The following project work as we present before you is an investigations that are carried out in this respect and the outcome is presented. The proposed Geo-material has three main constituents namely fly ash (FA), EPS beads (B) and ordinary Portland cement (C).The fly ash is available in huge quantity in our country from several thermal power plants. This fly ash forms the main constituent of our proposed geo-material. The lightness of the material is accomplished by adding EPS beads in fly ash. A small quantity of cement is proposed to be used for development of strength parameters since fly ash in itself has no strength property. An intensive laboratory experimentation was planned involving testing of 105 samples of composite material of different proportions of three constituents and under four curing periods of 7, 14,21 and 28 days The increase of strength achieved by the use of proposed cement and EPS content was satisfactory. The proposed geo material could be used in frame structures. The Quality of EPS beads could also be used to resist the heat that usually pose a problem in the summers. The practical applicability of the experimental study c
Article Details
Unique Paper ID: 155197

Publication Volume & Issue: Volume 9, Issue 1

Page(s): 179 - 184
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