1. What is workablity?
Workablity is a flow of concrete use in term of pouring of concrete at site .It is dependable on water cement ratio.
Normally following slump require to check workablity of concrete
a. Foundation and structure 100-150mm
b. Pcc. 50-100mm
c. Pile. 150-200mm
2. What is slump ?
Slump is the term use to measured the workablity of concrete .basically t is done by slump cone test of base dia 200mm,top dia 100mm and height 300mm. The height of plenger which blows in cone 25 times each layer of concrete is 600mm.total 4 layer concrete is filled in slump cone
3. What is M stand for M25?
M stand for design mixys
4. Chair provide provision?
In 1sqmt 1 chair is provided
5. In M25, 25 stand for?
In M25, 25 shows minimum compressive strenght require after 28days of concrete in terms of 25N/sqmm.
6. Type110 of cement and mostly used?
Three type grade 33,43,53.we are using 43 grade generally
7. Which type of cement used?
OPC oridinary portland cement OPC 43 used.
8. Deshuttering of component time period
A.column 24 hour
B. Slab 14 days
C. Beam 21 days
9.curing period?
Minimum 14 days curing period
10. LaP length provided?
Minimum 52d provided pr as per drawing.
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