Answer Posted / s b lal shrivastav

Micro Silica (or) Silica Fume is a Finer particle than
Cement.
It is produced by some chemical processing of the Rice husk
ash
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.

Thanks for Marking this Answer

what is column foundation

2319

---

2. In a container filled with each of the following materials, at a porosity of 40%, determine the upward gradient required to cause the quick condition (a) Lead shot with a G = 13.75; (b) Fibre beads with G = 2.15; (c) Sand with a G = 2.32

2395

---

What is the difference between linear dimension and aligned dimension?

999

---

Design a cantilever slab to carry a live load of 2000 N/m2. The overhang of the slab is 1.20m. b) A slab over a room is 4.75m x 4.75m. The edges of the slab are simply supported and the corners are not held down. The live load an the slab is 300 Kg/m2. The slab has a bearing of 15cm. On the supporting walls. Design the slab as per Rankine - Grashoff theory. Assume weight of R.C.C. = 2400 Kg/m2.

2818

---

What in your past experience or education prepares you for the position for which you are applying

2147

---

I want to know the material required per Square foot in rcc roof i.e.Steel ,Cement,

1945

---

at what pressure ply-wood is obtained by gluing wooden sheets

2544

---

Did any of the egyptian pyramids ever fall down?

1144

---

What is the Unit weight of coarse sand (F.M- 2.20) ?????

1910

---

Differentiate orthographic and isometric projections?

1181

---

) Design a gussetted base for a column section consisting of one sc 250 with two cover plates 300 x 25 mm carrying an axial load of 2500 KN. The S.B.C. of soil is 250 KN/m2 and the permissible bearing pressure on concrete is 4000 KN.

2700

---

i need the syllabus for the direcr recruitement of executive engineers in andhrapradesh

2348

---

How many litres of water used for curing of 1000sqft of slav

1500

---

How do you calculate the power of centrifugal pump?

1072

---

What is the meaning of a blue land surveyors flag?

1369

---