Answer Posted / veeravalli

Micro Silica (or) Silica Fume is a Finer particle than
Cement. It is used in High Strenght Concretes (Example .
M50,M60 & above).
The purpose is to fill the the small voids which cement
can't fill. The surface area of Micro Silica is appx 30000 -
45000 sqm/kg whereas for cement it is 350 - 600 sqm /kg.

Why is the use of granular sub-base in concrete carriageways not preferred, explain?

1265

---

what is the quantity of block work required to construct a compound wall of 6" thick,and 212 lenght

1433

---

Difference between pre-tensioning and post-tensioning.

1181

---

what is the basic difference between Coloumn & Shear Wall

2217

---

What are new methods /technologies of pothole patching?

2406

---

what is the anchorage length of reinforcement.

1764

---

How much for the BRC lapping in full yield and half yield < and which table to get it ?

2505

---

VAT and CST ? Which benefits for buyer ? Why benefits?

1827

---

I need to constructive work in amaraj batteries

1869

---

What is command line?

1189

---

How to do rate analysis for concrete work including shuttering work?

2051

---

what is detail procedure of eccentric footing? plz. give solved exmple?

2315

---

Explain what is the difference between built area and super built up area?

1198

---

What is the average density of soil?

1260

---

Spider cracks occur in beam bottom due to––

2136

---