Civil Engineering - Concrete Technology - Discussion
Discussion Forum : Concrete Technology - Section 1 (Q.No. 7)
7.
For ensuring quality of concrete, use
Discussion:
15 comments Page 1 of 2.
Prabhjodh singh said:
1 decade ago
We can also say this to ensure the quality apart from other parameter Aggregate should be well graded/ graded (can be ascertain by combine sieve analysis) should not gap graded. If we use single graded aggregates, the cement & sand paste will be spread unevenly & creation of gap will happen causing unsound, not well bounded concrete.
VAISHU said:
8 years ago
Otherwise concrete will become HONEYCOMBED.
Grading gives good quality of aggregate because all pores will get filled with different sizes of particles ie. Spaces between coarse aggregate will be filled by sand and the gap between sand particles get filled by cement, resulting in a dense cake of concrete.
Grading gives good quality of aggregate because all pores will get filled with different sizes of particles ie. Spaces between coarse aggregate will be filled by sand and the gap between sand particles get filled by cement, resulting in a dense cake of concrete.
(7)
Samy smiles said:
1 decade ago
Remember we have different grades of aggregate, we have uniformly graded, poorly graded and well graded or All in aggregate. Which is best 4 concrete cos it has a better bonding interface to form a single cohesive mass.
(1)
Jairaj said:
1 decade ago
The pores of sand is filled by cement, then the pores of coarse aggregate is filled by sand (fine aggregate) where its effective strength will come by adding chips (12mm) coarse aggregates.
Balai said:
1 decade ago
I have same opinion that @Rakesh has said. If mixed particle are being used the small particle fills gaps generated between big particle, in fact increases bonding strength.
Khalid.m@ocl.in said:
9 years ago
Graded aggregates mean different fraction is available & it effect on workability, interlocking and fill up the voids in the concrete.
PRADEEP said:
9 years ago
Graded means a dive analysis practical mostly rounded particles USD but some of the pours due to used differently grading.
KISHORE MEGAJI said:
9 years ago
By the using different size of particles all the gapes (pores) are closed (filled). So that bonding is increased.
Rakesh said:
1 decade ago
Because if the different size and shape of agg are mixed with each other. The bonding is become strong.
Waseem said:
1 decade ago
If different size of particles are present then the gaps will filled properly and bond become strong.
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