Answer / asif

After 7 days it should achieve 70% strength, and after 28 days it should achieve 120% strength.

Answer / kumaresan

at Seven days, it should be 70% and at 28 days it should be
100%

Answer / shri

at 7 days 2/3 of grade and at 14 days 1/3 of grade

Answer / shalu verma

after 7 days it achieve 70% strenght bt after 28 days it
achieve 85% strenght.

Answer / manoj kumar bhola

AT 7 DAYS STRENGTH WILL BE 67% AND AT 28 DAYS STRENGTH WILL BE 100%

Answer / palavalasa

7 days = 70%
28 days = 95%

Answer / hemanta ku.das.(tuv-sud)

Sp-24,page no-20 ,give this formula to find out the different grade of concrete for different age

t
Ft = ............... *F28
a+ (b*t)

a=4.7,b=0.833. constant
t=time period,(days)
F28=grade of concrete.

Answer / lalit kumar singh

Strength of cube in

07 days - 67%
28days - 85-90 %

50m3 concrete volume how much cement sand aggregate details radio m20grade

5 Answers   L&T, Mars Planning Engineering Services, Relcon Infraprojects,

As per Kandal suggestions, we have implemented rolling starts on 140 (+/- 5) degrees and we kept 3 rollars to complete the rolling before falling 125 degrees and the Aggregate AIV is below 22. But When the DBM bed is being rolled 3rd high viabration, (Before 1 plain & low ,2 high Viabrations), the aggregate is getting sharp edge agg. projections are damaged. As the literature is said that, the VG-30 Grade having better control the temp. susceptibility than Penetration grade. if so we could not get this problem at site. But we are facing on site. let me know.

0 Answers  

Prepare a Schedule for a Highrised building from starting stage to Handover?

0 Answers   bscpl,

how much % of fine sand(jamuna sand)we can use with coase sand for making concrete.

3 Answers   Jaypee,

if cement is 70 kg. sand is 140 kg and coarse aggregate is 280 kg. so what is volume of cement, sand and coarse aggregate? please explane it.

3 Answers  

when reinforcement binding completed if there is more cover than the required what is the solution to reduce the cover?

0 Answers  

for 1cum how much bag of cement is used for M20 grade

17 Answers  

What is the difference between EPC,DBOOT and BOOT.

2 Answers   IVRCL, NHPC,

1) One mason per day how many cu.m work will do as per list given a) Brick work,hollow brick work and cc block work and plastering how many m2 per day 2) one carpenter per day how many m2 will do as well as scaffolding how many m3

12 Answers   Al-Futtaim, Arihant, GS, Gulf, L&T, NCC, Paras Buildtech, PR Constructions, Ramco,

what is DLC

7 Answers   L&T, PQC,

how many cement and sand required for 1m2 plastering 1:4 cm

0 Answers  

per 1 cumt concrete how much manhours is required including shuttring,steel etc.,for slab & foundations

0 Answers