Answer / shaikh moyunuddin

concrete strength process timing is 1 year
after 28 days concrete gets 90% strength
then
for - M15=1:2:4=15+1.5=16.5 n/mm^2
for - M20=1:1.5:3=20+2=22 n/mm^2
for - M25=1:1:2=25+2.5=27.5 n/mm^2

& above the m25 grade,that is Based on design mix per IS.
for find strength of above m25 grade strength=concrete strength after 28 days+10%strength of concrete getting strength after 28 days


getting m45 grade strength laboratry test used
ther generally cement ratio increased & test & test till geting m45 strength

Answer / goutam giri

It gains 100% strength after full curing (fully immersed in water)

07. 4 main points about check list for rebar works are– ––

1 Answers  

---

How to calculate steel for beam slab and column

0 Answers   IOCL,

---

what is the number of cement bags (50 KG) required for concreting 1000 Square Feet Slab . Thickness of slab 4 inch.

4 Answers   Gammon, LNN, Ramky, TATA,

---

WHAT TYPE OF MATERIALS (CHEMICALS) ADDED IN CONCRETE TO INCREASE THE STRENGTH OF CONCRETE?

2 Answers  

---

what are the types of roads?what are the types of highway?

2 Answers   NG Project,

---

what is the bar bending schdule

7 Answers  

---

Can inverted beams used in pipes during construction?

0 Answers  

---

Explain what is Critical Path Method (C.P.M)?

0 Answers  

---

how much of the strength comes from post-production curing

0 Answers   Focus Energy, L&T,

---

what is the difference between compaction and consolidation??

7 Answers  

---

What are your goals?

1 Answers   Cisco, Flextronics, Hexaware,

---

how to read the drawings to find the quantity of steel in a storm water manhole or any other structure?

0 Answers  

---