Answer / sjtbehera

For plastering Fine sand are used for smoothness of surface.
For RCC And brickwork coarse sand are used because coarse
sand are less cosy and easily avilable.

Answer / surajitg

Above answer is partly correct. We use coarse sand for better strength and to reduce cement consumption. First of all we have to know why we use sand. Sand is used as a filler material of concrete. It is part of aggregate that's why it is called fine aggregate. If we use fine sand then no of sand particles will be more and overall surface area of sand will be quite high than when we are using coarse sand. When the surface area of sand is high, then to cover the surface with boding agent (i.e. cement gel) will be high.

procedure to calulate the how much bag of cement is used for M20 grade?

5 Answers   L&T, NCC, Sahyog,

---

While calculating quantity of cement required for 1 qubic meter If mix is m25 1:1:2 =4 1.52/4=0.38, 0.38x1440=547.20 kgs I know 1440 is unit weight of cement And what is 1.52 ? And some one using 1.54 and 1.53 etc... Why they are using can u explain me what is 1.52, 1.53, 1.54?

4 Answers  

---

how i can calculate the actual nos & size of steel to make 1000sqft. x 3"thick slab

0 Answers   Alembic,

---

What are the applications of modulus of elasticity?

0 Answers  

---

What's is mean by survey

1 Answers  

---

what is mean by centrifugal force which is act in vehicle on superelevation of road?

3 Answers   Jain Group,

---

How much Strength of the cube can attain in 7days comparative 28 days strength?(as per IS code) ( specify the ref.clause also)

8 Answers   CCCL, L&T,

---

What is the full form of BHEL? A) Bharat hydroelectricity Limited B) Bharat Heavy Electronics Limited C) Bharat Heavy Electricals Limited D) Bharat Heavy Enterprises Limited

1 Answers   HPSSSB,

---

What are the skills required to become an architect?

0 Answers  

---

do we decide reinforcement steel , based on bending moment ? give example with continous slab?

0 Answers  

---

what is flashing?

0 Answers  

---

What is the Density of Steel & Conccrete

7 Answers  

---