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Chemistry Investigatory Project Class 12 • 1. 2013-14 RAHUL KUSHWAHA KV NO.2, NSB, VISAKHAPATNAM CHEMISTRY INVESTIGATORY PROJECT • KENDRIYA VIDYALAYA NO. 2 NAUSENABAUGH, VISAKHAPATNAM DEPARTMENT OF CHEMISTRY CERTIFICATE This is to certify that RAHUL KUSHWAHA, a student of class XII-A has successfully completed the research on the below mentioned project under the guidance of Mr. B.Sreedhar ( Subject Teacher ) during the year 2013-14 in partial fulfillment of chemistry practical examination conducted by AISSCE, New Delhi. Signature of external examiner Signature of chemistry teacher • ACKNOWLEDGEMENT In the accomplishment of this project successfully, many people have best owned upon me their blessings and the heart pledged support, this time I am utilizing to thank all the people who have been concerned with project. Chemistry Investigatory Project PdfPrimarily I would thank god for being able to complete this project with success. Then I would like to thank my principal Mr. S.V.Babu and Chemistry teacher Mr.B.Sreedhar, whose valuable guidance has been the ones that helped me patch this project and make it full proof success his suggestions and his instructions has served as the major contributor towards the completion of the project. Then I would like to thank my parents and friends who have helped me with their valuable suggestions and guidance has been helpful in various phases of the completion of the project. Last but not the least I would like to thank my classmates who have helped me a lot. • INDEX 1.CERTIFICATE OF EXCELLENCE 2. ACKNOWLEDGEMENT 3. AIM OF PROJECT 4. INTRODUCTION 5. APPARATUS REQUIRED 7. Chemistry Investigatory Project Class 11PROCEDURE FOLLOWED 8. OBSERVATION 9. CONCLUSION 10. PRECAUTION 11. BIBLIOGRAPHY • AIM OF THE EXPERIMENT To study the setting of mixture of cement with sand, time and fly ash with respect to time and strength. • INTRODUCTION In the most general sense of the word, CEMENT is a binder, a substance that sets and hardens independently, and can bind other materials together. Solvusoft's close relationship with Microsoft as a Gold Certified Partner enables us to provide best-in-class software solutions that are optimized for performance on Windows operating systems. Microsoft office 2007 language pack deutsch rapidshare download. Solvusoft: Microsoft Gold Certified Company Recognized for best-in-class capabilities as an ISV (Independent Software Vendor) Solvusoft is recognized by Microsoft as a leading Independent Software Vendor, achieving the highest level of completence and excellence in software development. Chemistry Investigatory Projects For Class 12 Free DownloadThe word “ cement “ traces to the Romans, who used the term opus caementicium to describe masonry resembling modern concrete that was made from crushed rock with burnt lime as binder. The volcanic ash and a pulverized brick additive that were added to the burnt lime to obtain a hydraulic binder were later referred to as cementum, cimentum, cament and cement. The most important use of cement is the production of mortar and concrete The bonding of natural or artificial aggregates to form a strong building material that is durable in the face of normal environment effects. • Cement is made by heating limestone (calcium cabonate), with small quantities of other materials (such as clay) to 1450ͦC in a kiln, in aprocess known as calcination, whereby a molecule of carbon dioxide is liberated from the calcium carbonate to form calcium oxide,or quicklime,which is then blended with the other materials that have been included ih the mix. The resulting hard substance, called ‘clinker’, is then ground with a small amount of gypsum into a powder to make ‘Ordinary Portland Cement’, the most commonly used type of cement(often referred to as OPC).Portland cement is a basic ingredient of concrete, mortar and non speciality grout. The most common use for portland cement is in the production of concrete.
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