significance of the study

7/18/2019 Significance of the Study

http://slidepdf.com/reader/full/significance-of-the-study-56d4e3d5650f5 1/5

Efects o Seawater or Mixing and Curing on the Compressive Strength o

Concrete Using Sugarcane Bagasse Ash as Replacement

MARBO!E "# BA$A"UER

%&&'(%)*+%

E"$!S, )& " - )R

Signi.cance o the Stud/



Concrete is a heterogeneous construction material mainl/ composed o

water0 cement0 and aggregates0 usuall/ sand and gravel# !t has 1een used in

the construction o 1uildings and other inrastructures or as earl/ as the

Ba1/lonians2 and Eg/ptians2 time# Concrete can difer rom one to the other

depending on the amount and t/pe o its components# One can either alter

the t/pe and amount o the 1inding materials or the proportion o the

aggregates used# 3his stud/ ocuses on the evaluation o the possi1le efects

o using seawater during mixing and curing on the compressive strength o

the concrete using Sugarcane Bagasse Ash as an admixture#One o the most common concrete component that is altered is the

t/pe o 1inder or cement used# 3he most common 1inder used is the 4ortland

cement# As de.ned 1/ the American Societ/ or 3esting and Materials

5AS3M60 it is a 7h/draulic cement 5cement that not onl/ hardens 1/ reacting

with water 1ut also orms a water(resistant product6 produced 1/ pulveri8ing

clin9ers 5nodular material6 consisting essentiall/ o h/draulic calcium

silicates0 usuall/ containing one or more o the orms o calcium sulate as an

inter(ground addition: 5;ederal ,ighwa/ Administration <;,=A>0 %&))6# 3his

involves the 1urning o the 4ortland cement components in high temperature

changing their original chemical properties#?ue to the high cost in the production o 4ortland cement and its great

contri1ution to the car1on dioxide 5CO%6 emission0 a num1er o diferent

potential su1stitute or this 1inder have emerged# Some o these are

industrial 1/(products sometimes alread/ considered as wastes# Sugarcane

Bagasse Ash 5SCBA6 is a .1er(rich agricultural waste derived rom sugar cane



and alcohol industr/# As a wa/ o disposing these wastes0 these industries

1urned the 1agasse ash produced# ?ue to the continuousl/ increasing cost in

uel and electricit/0 certain studies were conducted and had shown that

these reuse could 1e used as uel to these production acilities 5Aig1odion0

,assan0 Ause0 @ /ior0 %&)&6# Another discover/ a1out this reuse ocuses on

its composition# On a recent stud/ conducted 1/ Rad9e 5%&)%60 she ound out

that the 1agasse ash has composition o materials almost the same as that

o a regular cement# She had suggested that 1agasse ash could 1e a

valua1le replacement to ordinar/ cement#Another component that can identi/ the concrete2s properties is the

t/pe o water used# 3he water to 1e used in the production o concrete can

contain impurities that can react destructivel/ to the components o the

cement used# !t has 1een researched that exposure o reinorced concrete to

saline water can 1e detrimental to the concrete2s perormance and

appearance# !t is due to the chemical reaction that happened 1etween the

salts o the water and the steel reinorced in the concrete# But certain studies

ound out that the use o seawater during the mixing and curing o the

concrete can 1ring improvement to it# =egian 5%&)&6 ound out on his stud/

that at certain curing periods0 the concrete can attain additional strength

rom seawater#

3he efects o using seawater on concrete needs additional attention

since it is said to 1e one o the actors on the deterioration o concrete# =ith

the world acing scarcit/ on water resources0 it is 1est to explore other

possi1le su1stitute on tap water in the production o concrete# Also0 since



almost *& o the earth2s surace is attri1uted to ocean and other large

1odies o water0 it is evident that these 1odies o water directl/ or indirectl/0

through the action o transport media li9e the wind0 afects a great num1er

o structures 5Mishra0 %&)%6# !t is also an issue on how to dispose solid

wastes produced in agricultural acilities or industries# Since it has 1een

proven that 1agasse ash produced rom sugarcane and alcohol industries has

properties similar to cement0 it can 1e used as a potential replacement to the

commonl/ used ordinar/ 4ortland cement 5O4C6# =ith this0 another

alternative use o these reuse can 1e made aside rom using it to uel these

industries# 3he stud/ will ocus on the efects o using seawater during mixing and

curing on the compressive strength onl/ o the concrete# Also0 the stud/ is

not concerned with the proportion and t/pe o aggregates to 1e used# 3he

standard procedure or the mix proportion to 1e prepared will 1e emplo/ed#! to 1e proven efective0 the use o tap water in construction purposes

can 1e minimi8ed thus helping in the conservation o water# =ith this0 the

use o water in agricultural means 5e#g# irrigation6 will 1e maximi8ed# Also

this stud/ can contri1ute on the maximi8ation o SCBA0 an agricultural

reuse0 thus minimi8ing and disposing the waste properl/# =ith this0

industries involved in the production o concrete can reduce their production

cost since these materials are readil/ availa1le# Also0 the emission o CO%

during the production o 4ortland cement can 1e minimi8ed thus contri1uting

in the protection o the environment#

Reerences



Mishra0 "opal# 5%&)%6# Concrete on Seawater# Retrieved rom

httptheconstructor#orgconcreteconcrete(in(seawater*D+

=egian0 ;alah M# 5%&)&6 Efect o seawater or mixing and curing on

structural concrete0 3he !ES ournal 4art A Civil @ Structural

Engineering0 +D0 %+F(%D+

Rad9e0 Brittan/# 5%&)%6# Sugarcane Bagasse Ash =aste# Bra8il U!CAM4

;ederal ,ighwa/ Administration# 5%&))6# 4ortland cement# Retrieved rom

httpwww#hwa#dot#govinrastructurematerialsgrpcement#html

http://theconstructor.org/concrete/concrete-in-seawater/843/

http://theconstructor.org/concrete/concrete-in-seawater/843/

significance of the study

Documents