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Procedure to calculate materials required for concrete 1 2 4 ratio and a online calculator

Calculation of materials required is to be done by a site engineer in order to purchase the materials like cement, sand, course aggregates well before work starts.   This is one of the basic question asked by interviewers .
Consider 1 m3 volume of concrete
Ratio of concrete = 1:2:4
Add 30% for allowance for shrinkage after adding water and voids in concrete
Total volume = 1+(1*30/100) =1.3 m3
Cement = 1.3/(1+2+4) = 0.186 m3 = ( cement = 1440 kg/m3) so 267 kg = 5.35 no of 50 kg bags
Sand =0 .186 * 2 =0.371 m3

Course aggregates = 0.186 * 4 =0.743 m3

cement sand course aggregates required for concrete 1 2 4 ratio


Ratio of concrete
volume of concrete m3
Add allowance for shrinkage %
Total volume m3
Materials m3 kg *Bags
Cement
Sand
Course aggregates

Top NIT's colleges for structural engineering and structural engineering CCMT GATE Score cutoff

 Top ten NIT's for M Tech Structural engineering after civil engineering degree are listed here, Last year trend of CCMT GATE Score cutoff shows that NIT Tirchy, NIT surathkal, NIT calicut, NIT warangle, MNIT allahabad are best colleges to Structural engineering (SU) and transportation engg course and NIT rurkela good for Geo technical engineering. cutoff trend shows that they are best colleges in teaching experts placements, campus facility etc. in 2013 year this trend may change 5 to 10% only


2012 CCMT 4rth round GATE Score cut-toff civil engineering
 
COLLEGE
STRUCTURAL
TRANSPORT
GEO TECH


OC
OBC
SC
ST
OC
OBC
SC
ST
OC
OBC
SC
ST
1
NIT TIRCHY
502
439
330
326
436
367
285
301
-------
2
NIT SURATHKAL
502
441
301
277
416
383
293
199
461
408
282
-
3
NIT CALICUT
498
436
326
215
420
379
269
211
412
354
248
-
4
NIT WARANGLE
490
461
293
264
416
354
305
281
404
363
268
207
5
MNNIT ALLAHABAD
469
434
297
178
-------
------
6
VNIT NAGPUR
457
375
260
-
391
326
256
240
------
7
MNIT JAIPUR
449
420
277
408
387
338
268
296
------
8
NIT RORKELA
420
367
244
238
375
326
240
326
363
345
219
282
9
MANIT BHUPAL
420
359
264
185
359
318
229
-
354
326
223
-
10
SVNIT SURATH
414
349
240
-
383
322
240
219
359
285
203
-
11
NIT DURGAPUR
408
341
219
229
--------
-------
12
NIT AGARTALA
350
309
190
264
310
272
207
-
322
281
190
-

  If you are having cutoff less than the listed above table, no need to worry, attend spot admissions, there is more chance of getting seat in spot round with lower gate score. if you are looking for doing M Tech only in NIT then contact respective college about non-gate admissions. Each nits having 4 to 5 seats per stream for non-GATE students, they conduct a test followed by interview. All the best