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ppt about cracks in rcc structures


Posted by:
Created at: Thursday 04th of April 2013 03:50:44 AM
Last Edited Or Replied at :Friday 05th of April 2013 01:52:59 AM
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i want ppt about cracks in rcc structure to present it in college..................[:=> Show Contents <=:]



CRACKS IN BUILDING


Posted by: seminar class
Created at: Wednesday 23rd of March 2011 12:10:10 AM
Last Edited Or Replied at :Wednesday 23rd of March 2011 03:39:33 AM
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weather needs more water for same workability hence results in more shrinkage
Thermal Movement
All materials expand on heat and contract on cool. Thermal movement in components of structure creates cracks due to tensile of shear stresses. It is one of the most potent causes of cracking in buildings and needs attention
Elastic Deformation
When the walls are unevenly loaded, due to variation in stresses in different parts of wall the cracks are formed in walls. When two materials having wide different elastic properties are built together under the effect of load, different sh..................[:=> Show Contents <=:]



ppt about cracks in rcc structures


Posted by:
Created at: Thursday 04th of April 2013 03:50:44 AM
Last Edited Or Replied at :Friday 05th of April 2013 01:52:59 AM
cracks in rcc structures, steel structure over rcc structure , crack in rcc ppt, ppt about cracks in rcc structures , seminar on r c c structure, seminar rcc structure ppt , structural cracks in rcc buildings ppt pdf, seminar on cracks in structural ppt , ppt on cracks in rcc,
i want ppt about cracks in rcc str..................[:=> Show Contents <=:]



Protection repair and maintenance of rcc structures


Posted by: smart paper boy
Created at: Monday 18th of July 2011 04:24:19 AM
Last Edited Or Replied at :Monday 18th of July 2011 04:24:19 AM
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thods
Epoxy-Bonded Epoxy Mortar
Epoxybonded epoxy mortar should be used where the depth of repair is less than 1-1/2 inches and the exposure conditions are such that relatively constant temperatures can be expected
Epoxy mortars have thermal coefficients of expansion that may be significantly different from conventional concrete
epoxy injection equipment
difference in potential can result in the formation of a galvanic corrosion cell with accelerated corrosion at the repair perimeters
The epoxy bond coat and epoxy mortar create zones of electrical potential that are different from..................[:=> Show Contents <=:]



CRACKS IN BUILDING


Posted by: seminar class
Created at: Wednesday 23rd of March 2011 12:10:10 AM
Last Edited Or Replied at :Wednesday 23rd of March 2011 03:39:33 AM
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gate
Aggregate can cause shrinkage also. If un-graded and fine material/aggregate is used in cement concrete and cement mortar which requires more water and can cause greater shrinkage.
 Curing
After laying cement concrete mix, the hardening of cement takes place, causes reduction in moisture and creates shrinkage. This causes cracks in concrete work.
 Excessive Fine materials
Fine materials take more surface area and require more water for mix. The use of excessive fine materials i.e. silts; clay and dust in aggregate create more shrinkage.
 Temperature:
Concrete made in hot..................[:=> Show Contents <=:]



Prevention of water leakage through construction joints in rcc structures


Posted by: leo_chandu
Created at: Friday 11th of March 2011 01:18:47 AM
Last Edited Or Replied at :Friday 11th of March 2011 01:18:47 AM
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final year civil engineering student. I have to be presenting a seminars on prevention of water leakage through water contact rcc structures. It would be helpful if you can send me a report or a ppt on it.
I would want to know which are the methods followed, which is the most ..................[:=> Show Contents <=:]



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