civil engineeing basics

7/24/2019 Civil Engineeing Basics

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CONCRETE GRADE:

M5 = 1:4:8

M10= 1:3:6

M15= 1:2:4

M20= 1:1.5:3

M25= 1:1:2

CLEAR COVER TO MAIN REINFORCEMENT:

1.FOOTINGS : 50 mm

2.RAFT FOUNDATION.TOP : 50 mm

3.RAFT FOUNDATION.BOTTOMSIDES : !5 mm

4.STRAP BEAM : 50 mm

5.GRADE SLAB : 20 mm

6.COLUMN : 40 mm

!.S"EAR #ALL : 25 mm

8.BEAMS : 25 mm

$.SLABS : 15 mm

10.FLAT SLAB : 20 mm

11.STAIRCASE : 15 mm

12.RET. #ALL : 20 25 mm %& '()*+

13.#ATER RETAINING STRUCTURES : 2030 mm

#EIG"T OF ROD PER METER LENGT":

DIA #EIG"T PER METER

6mm = 0.222,-

8mm = 0.3$5 ,-

10mm = 0.616 ,-

12mm = 0.888 ,-

16mm = 1.5!8 ,-


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20mm = 2.466 ,-

25mm = 3.853 ,-

32mm = 6.313 ,-

40mm = $.865 ,-

1(- /'m'&*50-

1''*0.3048m

1m3.28*

1.m10.!6. *

1/.m35.28/. *

1(/)'43560. *

1/'&*435.6. *

1+'/*()'2.4!(/ )'

1(/)'100/'&*4 046.!24.m

1-)%&72400. *

1&*100/.* 2.83/.m 1()'100. *

1 M LENGT" STEEL ROD I ITS VOLUME

V=9P4;D( < D( L=93.144< D < D 1 9%)

1m >'&-*+ D'&*? % S*''>=!850 - / m'*')

#'-+* = V%>m' < D'&*?=93.144< D < D

1

1

DESIGN MI:

M10 9 1 : 3.$2 : 5.62

C'm'&* : 210 ,- M 3

20 mm @'>>? : !08 ,- M 3

12.5 mm @'>>? : 4!2 ,- M 3

R') (&7 : 823 ,- M 3


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T%*(> (*') : 185 ,- M 3

F)'+ /%&/)'*' 7'&*?: 23$8 ,-M 3

M20 9 1 : 2.48 : 3.55

C'm'&* : 320 ,- M 3

20 mm @'>>? : 683 ,- M 3

12.5 mm @'>>? : 455 ,- M 3

R') (&7 : !$4 ,- M 3

T%*(> (*') : 1!6 ,- M 3

A7m>? : 66! ,- M 3

12.5 mm @'>>? : 445 ,- M 3

R') (&7 : !!5 ,- M 3

T%*(> (*') : 185 ,- M 3

A7m

M30 9 1 : 2 : 2.8!

C'm'&* : 380 ,- M 3

20 mm @'>>? : 654 ,- M 3

12.5 mm @'>>? : 436 ,- M 3

R') (&7 : !60 ,- M 3

T%*(> (*') : 18! ,- M 3

A7m


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F)'+ /%&/)'*' 7'&*?: 2420 ,- M 3

N%*': S(&7 = !60 ,- *+ 2 m%*)'

91!0.8015.20

STANDARD CONVERSION FACTORS

INC" = 25.4 MILLIMETRE

FOOT = 0.3048 METRE

ARD = 0.$144 METRE

MILE = 1.60$3 ,ILOMETER

ACRE = 0.404! "ECTARE

POUND = 0.4536 ,ILOGRAM

DEGREE FAREN"EIT 5$ 32 = DEGREE

CELSIUS

MILLIMETRE= 0.03$4 INC"

METRE = 3.2808FOOT

METRE = 1.0$36ARD

MATERIAL CALCULATION:

CEMENT IN BAGS

01. PCC 1:5:10 14405;0.45 12$.60,- 2.5$

02. PCC 1:4:89M !.5 14404;0.45 162.00,- 3.24

03. PCC 1:2:49M 15 14402;0.45 324.00,- 6.48

04. PCC 1:3:69M 10 14403;0.45 216.00,- 4.32

05. RCC 1:2:49M 15 1442;0.45 324.00,- 6.48

06. RCC 1:1.5:39M 20 14401.5;0.45 32.00,-

8.64

0!. RCC 1:1:29M 25 3!0.00,- !.40

08. RCC M 30 410.00,- 8.20

0$. RCC M35 445.00,- 8.$0


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10. RCC M40 480.00,- $.60

11. D(mH P)%% C%)'

CM1:320mm * 14403;0.022 10.56,- 0.21

12. 2* H)'/(* >( M15 324;0.05 16.20,- 0.32

13. 3* H)'/(* >( M15 324;0.0!5 24.30,-

0.4$

14. GC M(%&)? CM 1:! 1440!;0.34 !0.00,-

1.40

15. B)/ #%) CM 1:6 14406;0.25 60.00,- 1.20

16. B)/ #%) CM 1:4 115* 14404;0.25;0.115

10.35,- 0.21

1!. G)(&% F>%%)&- CC 1:1.5:3 14401.5;0.45;0.05

21.60,- 0.43

18. P>(*')&- CM 1:3 12mm * 14403;0.014

6.!2,- 0.13

1$. #(>> P>(*')&- CM 1:4

12mm * 14404;0.014 5.00,- 0.10

20. L(?&- P)''7 T>' O')

( CM 1:4 20mm * 14404;0.022 !.$2,- 0.16

21. C')(m/ T>' M()>'

G)(&*' C(77(H(+ S>(

CM 1:4 20mm * 14404;0.022 !.$2,- 0.16

22. "%>>% B>%/ M(%&)?

CM 1:6 200mm *m2 10.00,- 0.20

SAND CALCULATION 9CFT:

01. A&? C%&/)'*' #%)

9PCC RCC 0.45;35.315= 20.00

02. D(mH P)%% C%)'


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CM J1:3 20mm * 1.00

03. 2* P)'/(* >( M15 1.00

04. 3* P)'/(* >( M15 1.50

05. SS M(%&)? & CM 1:! 15.00

06. B)/ #%) & CM 1:6 15.00

0!. B)/ #%) & CM 1:4115mm * 2.00

08. G)(&% F>%%)&- & CC 1:1.5:3 1.00

0$. P>(*')&- & CM 1:3 12mm * 1.00

10. #(>> P>(*')&- CM 1:4 12mm * 1.00

11. L(?&- P)''7 T>' %') ( CM 1:4 20mm *

1.00

12. C')(m/ T>' M()>' G)(&*' C77(H(+ >(

CM 1:4 20mm * 1.00

METAL CALCULATION:

01. A&? C%&/)'*' #%) 32.00 /*

02. G)(&% F>%%)&- & CC 1:1.5:3 50mm * 1.60

/*

03. G)(&% F>%%)&- & CC 1:1.5:3 !5mm * 2.40

/*

04. G)(&% F>%%)&- & CC 1:1.5:3 100mm * 3.20

/*

05. B)//m 450.00 N%

06. SK' S*%&' /m $0.00 N%

0!. R%-+ S*%&' 10.00 /*

08. B%&7 S*%&' /m 10.00 N%

0$. C'm'&* P(&*100 S* 2.00 ,-

10. #+*' C'm'&*100 S* 2.00 ,-

11. @(&(*+(/'m100 S* 1.50 ,-


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12. E&(m'> P(&*100 S* 2 C%(* 1.25 L*)'

13. #(>> P**?100 S* 10.00 ,-

14. P>(*') % P()100 S* 25.00 ,-

15. D*'m')100 S* 2.00 ,-

16. C'm'&* P)m') 0.60 L*)'

0.40 L*)'

1!. #'(*+')&- C%)'

Lm' 12.50 ,-

B)/ (* 32.00 ,-

18. P)%7&- S(&7 G)('> M96040 mm 35.00 C*

G)('> 10.00 C*

20. P)''7 T>' Sm 20.00 N%

21. "%>>% B>%/ 200mm * 14.00 N%

CONVERSION TABLE:

01. 1 RM 3.28 R*

02. 1 Sm 10.!6 S*

03. 1 Cm 35.32 C*

04. 1 I&/+ 2.54 /m

05. 1 * 0.0$Sm

06. 1 A/)' 0.04 "'/*()'

0!. 1 "'/*()' 2.4! A/)'

08. 1 C* 0.028 Cm

0$. 1 F''* 12.00 I&/+

10. 1 F''* 0.305 M

11. 1 Cm 1000.00 L*)'


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F%) MH)%'/* '*'

+**H:.(/'%%./%mC>SH'),&-

UNIT #EIG"T:

01. C%&/)'*' 25 Nm3

02. B)/ 1$ Nm3

03. S*''> !850 ,-m3

04. #(*') 1000 L*m3

05. C'm'&* 1440 ,-m3

06. 1G(>>%& 4.81 L*)'

0!. L& 8 = 200mm

08. 1 "'/*()' 2.4!1 (/)910000m2

0$. 1 A/) 4046.82m2 = 100 /'&*

DEVELOPMENT LENGT":

01. C%mH)'%& 387

02. T'&%& 4! 607

03. 1 C'&* 435.60 S*

04. 1 M'*') 3.2808 *

05. 1 M2 10.!6 *2

06. 1 F''* 0.3048m

0!. 1 ,N 100,-

08. 1N 1000N

0$. 1 T%& 1000,- = 10000 N = 10 N

10. 1 G $.81N

M5=2.54B-m3 M!.5=3.18B-m3 M10=4.32B-

m3

M20=8.64B-m3 M25=12.$ B-m3


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M40=500100,-m3

1m3 C%&)'*' = 0.$ m3 @'>>? 0.55 m3 S(&7

0.225 m3

BRIC,:

#'-+* = 3.1! 3.80 ,-

#(*') (%)H*%& 12 *% 15

C%mH)'' *)'&-*+ = 36,&/m2

230mm #(>>m3 = 460 B)/ 20C* S(&7

66,- C'm'&*

P>'(' /)/>(*' *%

/> E&-- A)/+*'/* -)%H.

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