Second Rie

8/10/2019 Second Rie

http://slidepdf.com/reader/full/second-rie 1/17

JCT COLLEGE OF

ENGINEERING AND TECHNOLOGY

STRENGTH CHARACTERISTICS OF CONCRETE

WITH SEA SAND AS FINE AGGREGATE

SECOND REVIEW

SARITHA. V

M.E, STRUCTURAL-FINAL YEAR

UNDER THE GUIDANCE OF

Mr. MURUGESH.V,M.E.

ASSISTANT PROFESSOR

Department o !"#"$ en%"neer"n% &CT CET





MATERIALS TO 1E TESTED

23CEMENT

43FINE AGGREGATE

53COARSE AGGREGATE



!ement

IS mar 65 %ra/e !ement 71ran/-ACC!ement3 +a) )e/ or a$$ !on!retem"8e).

• T*e !ement )e/ +a) re)* an/+"t*ot an $mp). Te)t"n% o !ement+a) /one a) per IS9

• :224-2;:; <4=>.• T*e !ement )e/ +a) )"m"$ar to Tpe I

!ement 7ASTM C 2?@3.



TESTS CONDUCTED ON CEMENT



Coar)e a%%re%ate)

• Lo!a$$ a#a"$a'$e !oar)e a%%re%ate) *a#"n% t*ema8"mm )"e o 2@ mm an/ 4@mm +ere )e/"n t*e pre)ent +or.

•

T*e 2@mm a%%re%ate) )e/ +ere 0r)t )"e#e/t*ro%* 2@mm )"e#e an/ t*en t*ro%* 6.B?mm )"e#e an/ 4@mm a%%re%ate) +ere 0r)t$)"e#e/ t*ro%* 4@mm )"e#e. T*e +ere t*en+a)*e/ to remo#e /)t an/ /"rt an/ +ere /r"e/to )ra!e /r !on/"t"on.

• T*e a%%re%ate) +ere te)te/ per In/"anStan/ar/ Spe!"0!at"on) IS9 5:5-2;B@ <4B>.





FINENESS MODULUS OF

AGGREGATES



SIEVE ANAYSIS



FINE AGGREGATE

• Sea )an/ ") )e/ a) 0ne a%%re%ate

• T*e )an/ +a) 0r)t )"e#e/ t*ro%*6.B? mm )"e#e to remo#e anpart"!$e) %reater t*an 6.B? mm an/t*en +a) +a)*e/ to remo#e t*e /)t.

• T*e 0ne a%%re%ate) +ere te)te/ perIn/"an Stan/ar/ Spe!"0!at"on) IS95:5-2;B@ <4B>.



Advantages and Disadvantages of Sea Sand

ADVANTAGES

• It is the cheapest form of fine aggregate

• In contrast to crushed fine aggregate, it is more rounded

or cubical like river sand and hence, demand for aterand cement is lo !rice

• As it is found in natural deposits grading of sea sand is

generall" good

• Grading of sea sand is finer than that of river sand and

since local crushed stone coarse aggregate is coarser, it

does not sho an" adverse effects hen used in concrete



DISADVANTAGES

• It ma $ea/ to eore)!en!e an/!orro)"on o re"nor!ement

• I +a)*"n% ") ne!e))ar, "t ma 'e ana//"t"ona$ 'r/en

• O)*ore )an/ a!"$"t +"$$ re"re a$ar%e !ap"ta$ "n#e)tment



Sieve anal"sis of fine aggregate

eight of sample taken#$%%%g

S"e#e )"e e"%*t reta"ne/

+e"%*t reta"ne/

Cm$at"#e +t reta"ne/

+e"%*t pa))"n%

6.B? mm 2:.? 2.:? 2.:? ;:.2?

4.5=mm 54.B 5.4B ?.24 ;6.::

2.2:mm 22B.5 22.B5 2=.:? :5.2?

@.=mm ?5@ ?5 =;.:? [email protected]?

@.64?mm 2@@ 2@ B;.:? [email protected]?

@.5mm :? :.? ::.5? 22.=?

@.2?mm :5.2 :.52 ;=.== 5.56

@.@B?mm 55.6 5.56 2@@ @

F J!m$at"#e +t reta"ne/K2@@



From t*e %rap*

• Ee!t"#e )"e D2@ @.4?mm

• n"orm"t !oe!"ent ,!D=@KD2@

5.4

• Coe!"ent o !r#atre,!!D5@K7D5@D=@3

2.:• F"nene)) mo/$) FK2@@

6.?;



Spe!"0! %ra#"t o 0nea%%re%ate

O')er#at"on) e"%*t7%3

e"%*t o p!nometer7+23 =B?

e"%*t o p!nometer )o"$7+43 24B?

e"%*t o

p!nometer)o"$+ater7+53

2:@@

e"%*t o p!nometer+ater7+63 26??

Temperatre o t*e te)t 4B

Spe!"0! %rea#"t o /")t"$$e/ +aterGt

2

Spe!"0! %ra#"t G) 7+4-+23GtK7+4-+23-7+5-+63

Spe!"0! %ra#"t o 0nea%%re%ate 4.5?



1$"n% o )an/.

• From t*e %rap* p$otte/ 'et+een t*e o'ta"ne/#a$e) o per!enta%e '$"n% an/ mo")tre!ontent

• Per!enta%e o +ater,pro/!"n% ma8"mm '$"n%o )an/ 5@

• Ma8"mm '$"n% a!tor2.@B;

• Per!enta%e o +ater pro/!"n% ero '$"n% o)an/4



THANK YOU

Second Rie

Documents