Special Concrete 4 min read
Manufacture Of Cement
There are four stages in the manufacture of portland cement: (1) crushing and grinding the raw materials, (2) blending the…
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Special Concrete 3 min read
Raw Materials
Composition Portland cement consists essentially of compounds of lime (calcium oxide, CaO) mixed with silica (silicon dioxide, SiO2) and alumina…
Special Concrete 1 min read
Applications Of Cement
Cements may be used alone (i.e., “neat,” as grouting materials), but the normal use is in mortar and concrete in which the cement is…
Special Concrete 8 min read
Constituent Materials of Concrete
Concrete is a composite material consisting of a binder, which is typically cement, rough and fine aggregates, which are usually…
Special Concrete 1 min read
WHAT IS CONCRETE
Contrary to popular belief, concrete and cement are not the same thing; cement is actually just a component of concrete.…
Repair and Rehabilitation of Structures 2 min read
Wear in Concrete
wear The concrete has been damaged by erosion it is almost certain that any repaired section will again be damaged…
Repair and Rehabilitation of Structures 3 min read
Repairs to overcome low member strength
Need for Strengthening: · Load increases due to higher live loads, increased wheel loads, installations of heavy machinery or vibrations · Damage…
Repair and Rehabilitation of Structures 2 min read
Shoring and underpinning
The arrangement employed to prevent a damaged structure, due to either foundation settlement or other reasons from collapse, is called…
Repair and Rehabilitation of Structures 3 min read
Mortar repair for cracks
Portland cement mortar may be used for repairing defects on surfaces not prominently exposed. where the defects are too wide…
Repair and Rehabilitation of Structures 4 min read
Gunite or Shotcrete
Gunite can be defined as mortar conveyed through a hose and pneumatically projected at a high velocity on to a…
Repair and Rehabilitation of Structures 4 min read
Vacuum Concrete
Vacuum Concrete It has been amply brought out in the earlier discussion that high water/cement ratio as harmful to the…
Repair and Rehabilitation of Structures 4 min read
Mortar and dry pack
Dry pack is a combination of Portland cement and sand passing a No. 16 sieve mixed with just enough water…
