Answer / balkelabal

M-10 1:3:6
M-15 1:2:4
M-20 1:1.5:3
M-25 1:1:2
M-30 depends on Design Mix

Answer / teja

M-10 1:3:6
M-15 1:2:4
M-20 1:1.5:3
M-25 1:1:3

Generally concrete grade higher than M-20 is Design Mix.

why mixing marble powder reduces setting time of cement

3 Answers   NUST,

---

i have to give lap joint fo 1Mtr steel of dia12mm,whenever i did mistake i cut less 5cm plz tell me how much i will give lap joint so that length comes 1Mtr

0 Answers   National Construction Authority,

---

Define What are the uses of alloys in daily life and how are alloys made?

0 Answers  

---

How do you calculate the power of centrifugal pump?

0 Answers  

---

hai, kindly send anyone for output workers format details for construction project in foundation to finishing.

0 Answers  

---

1)What's are the diff. types of column based on loading? 2)Is there any difference bitween Development length & Anchorage Length? 3) What is the basic diff. between one way & two way slab? 4) Where should use OPC & where should PPC?

3 Answers   TPSC,

---

1m3 3/4 inch course agreegate concrete is which m3 of agreegate ?

3 Answers  

---

how 1.52 factor comes while calculating no of bags of cement...from 1:2:4 design mix?

4 Answers   CCCL, L&T, Vishwa Infrastructures,

---

where we use one way slab and two way slab?

7 Answers   SRM,

---

what is the m25 test result 7 days 14 days

3 Answers  

---

how can u extent the final setting time of cement?

2 Answers   Sobha Developers, TNPSC Tamil Nadu Public Service Commission,

---

why don't we need shear reinforcement in slabs?

1 Answers  

---