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Canteen Management /. &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& & COMPUTER SCIENCE PROJECT WORK& &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& SOFTWARE FOR THE USE OF CANTEEN DEPARTMENT ////INTRODUCTION//// ///////////////////////////// //NAME:- GOURAV.K.CHOUDHARY / //CLASS:- XI ‘D’ / //ROLL NO.:- 33 / ///////////////////////////// #################### #CANTEEN MANAGEMENT# ####################./ /.## HEADER FILES ##./ #include #include #include #include #include #include. Banking System //.
//PROJECT BANKING SYSTEM //. //INCLUDES HEADER FILES //. #include #include #include #include #include #include #include #include #include #include #include typedef char option15; const int ROW = 10,COL. HOTEL MANAGEMENT //. // PROJECT HOTEL-MANAGEMENT //. //.
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In this page you can find Chemistry Investigatory Project Experiments for Class 12, Chemistry Projects 2013, Chemistry Science Fair Projects Free Download Kids, Topics cbse project on chemistry,Term Papers CBSE Chemistry Science Experiments Project Ideas Topics Children Toddlers, Exhibition winning, simple, latest cool and fun interesting chemistry project experiments, investigatory project for chemistry for Kids and also for Middle school, Elementary School for class 5th Grade,6th,7th,8th,9th 10th,11th, 12th Grade and High School, MSc, BSc and College Students. Chemistry Investigatory Project Experiments for Class 12.
Chemistry Investigatory Project (Class 12,CBSE). 1. 0 P a g e M.B.S PUBLIC SCHOOL 2014-15 CHEMISTRY INVESTIGATORY PROJECT SETTING OF CEMENT Name:- Ayashkant Mishra Class:- XII Section:- A Roll No:-. 1 P a g e M.B.S Public School Department Of Chemistry CERTIFICATE This is to certify that Ayashkant Mishra, a student of class XII-A has successfully completed the research on the below mentioned project under the guidance of Mr. ( Subject Teacher ) during the year 2014-15 in partial fulfillment of chemistry practical examination conducted by AISSCE, New Delhi. Signature of external examiner Signature of chemistry teacher. 2 P a g e ACKNOWLEDGEMENT Primarily I would thank God for being able to complete this project with success.
Then I would like to thank my physics teacher Mr., 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.
Ayashkant Mishra. 3 P a g e INDEX 1.
CERTIFICATE OF EXCELLENCE 2. ACKNOWLEDGEMENT 3.
AIM OF PROJECT 4. INTRODUCTION 5. APPARATUS REQUIRED 7. PROCEDURE FOLLOWED 8. USES OF TRANSFORMERS 9.
CONCLUSION 10. PRECAUTIONS 11. BIBILIOGRAPHY. 4 P a g e AIM OF THE PROJECT To study the setting of mixture of cement with sand, lime and fly ash with respect to time and strength. 5 P a g e 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. The 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, ceament 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. 6 P a g e PORTLAND CEMENT Cement is made by heating limestone (calcium carbonate), with small quantities of other materials (such as clay) to 1450ͦC in a kiln, in a process known as calcinations, 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 in 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 specialty grout.
The most common use for Portland cement is in the production of concrete. Concrete is a composite material consisting of aggregate (gravel and sand), cement and water. As a construction material, concrete can be cast in almost any shape desired and once hardened, can become a structural (load baering) element. Portland cement may be gray or white. 7 P a g e Construction of Buildings Using Cement Cement used in construction is characterised as hydraulic or non-hydraulic. Hydraulic cements (eg. Portland cement) harden because of hydration chemical reactions that occurs independently Of the mixture’s water content; they can harden even underwater or when constantly exposed to wet weather.
The chemical reaction that results when the anhydrous cement powder is mixed with water produces hydrates that are not water-soluble. Non-hydraulic cements (eg.
Lime and gypsum plaster) must be kept dry in order to retain their strength. 8 P a g e ILLUSTRATION (i). 9 P a g e Theory EFFECT OF QUALITY OF SAND ON SETTING OF CEMENT MORTAR Sand obtained from different sources has different qualities. For example, Sea sand obtained from sea contains unwanted salts and retards setting of cement and is not suitable for making mortar. On the other hand, Pit sand is obtained from pits in the soil and the River sand obtained from riverbed is considered excellent for preparing mortar and concrete.
Chemistry Investigatory Project Report
10 P a g e EFFECT OF TIME ON SETTING OF CEMENT MORTAR Time has an important role on strength of developed cement mortar. When a cement paste in the ratio 1:3 in water is allowed to dry, the strength of solid mass keeps on increasing with increase in time given for setting. It acquires a nearly full strength in 28 days.
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Investigatory Projects Class 12
11 P a g e ILLUSTRATION (ii). 12 P a g e APPARATUS REQUIRED BEAKER GLASS ROD WEIGHT MATCH BOX BEAKERS. 13 P a g e LIMESTONE River sand Cement fly ash. 14 P a g e PROCEDURE 1.
Prepare mixtures of various compositions as given in Observation table. Take each of the given mixtures in different beakers and prepare their pastes by adding minimum amount of water 3. Take nine cases of empty match boxes and mark them from 1 to 9.
Fill the three cases with the paste of each composition. Spray water from time to time over the paste,so that they remain moist all the time. After three days, take out one slab of each composition and test their strengths. Similarly, take out a set of three slabs after 7 days after 30 days respectively and test their strengths. 15 P a g e OBSERVATIONS By seeing the observation we can estimate the hardness of the slab. COMPOSITION OF MIXTURE AND RATIO MINIMUM WEIGHT TO BREAK THE SLAB AFTER 3 DAYS 7 DAYS 10 DAYS 1.
CEMENT:REVER SAND (1:3) 18 GRAM 20 GRAM 30 GRAM 2. CEMENT:RIVER SAND:FLY ASH (2:9:1) 16 GRAM 18 GRAM 26 GRAM 3. CEMENT:RIVER SAND:LIME (1:3:1) 10 GRAM 15 GRAM 20 GRAM. 16 P a g e CONCLUSION The strength of the slab increases with the increase in setting time allowed. 17 P a g e PRECAUTIONS Handle the glass wares safely. Allow the time required to set.
Spray only required amount of water. 18 P a g e BIBILIOGRAPHY 1.
WWW.GOOGLE.COM 2. WWW.SCRIBD.COM 3.
NCERT LAB MANUAL FOR CLASS 12 4. WWW.SLIDESHARE.COM. 19 P a g e THE END. 20 P a g e.
Project On Chemistry
Chemistry Project Reports, Chemistry Projects CBSE Sample MBA Project Reports, Free Download MBA/BBA Projects, Final Training Report, HR Projects MBA, Marketing Projects MBA, Operations Projects, Finance Projects MBA, MBA Project/Synopsis, Management Research MBA BBA Projects in HR-Marketing-Finance and Mphil. Thesis/Dissertations My Whats App: +646 Chemistry Project Reports CBSE Download Free Here are many Chemistry Projects download from Allprojectreports.com, Chemistry Project Reports for CBSE and other Boards.
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