glass powder as a pozzolan

8/10/2019 Glass Powder as a Pozzolan

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THE EFFECT OF ADDITION OF GLASS POWON COMPRESSIVE STRENGTH OF CONCR

CURED IN CRUDE OIL

Name: ABIODUN AREMU OLIYIDEMatric No. 134183Dept.: CIVIL ENGINEERING DEPARTMENT

UNIVERSITY OF IBADANSupervisor: DR. K.K. ADEWOLE

Presented By


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OUTLINE Introduction

Problem Definition Aim and Objectives Materials and Methods Results and Discussions Conclusions Recommendations References


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INTRODUCTIONUkoli in 2001, noted that the Niger Delta regio

Nigeria has been mired by various degrees of health environmental pollution problems.

Recent research has shown that concrete deteriorati

and cracking is more severe in these oil pollenvironment and this has led to several investigationthe causes of concrete deterioration in thenvironment (Ejeh et al, 2009).


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PROBLEM DEFINITION

Ajagbe et al (2012), established that there is an obvi

reduction in strength of concrete that was made from

crude oil contaminated sand

Ramzi et al, 2000 established that the rate of crudabsorption by concrete is high at early age and this

reduces the compressive strength of such concrete


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PROBLEM DEFINATION Odufuwa (2010), noted that the strength of concre

made from crude oil imparted sand can be improved breducing the water cement ratio NOTE: Not much work has been done on how to improve th

compressive strength of concrete cast withuncontaminated sand, but cured in a crude oil medium This project looks into the use of waste glass powder(pozzolan) to improve the strength


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CURING OF CONCRETE IN CRUDE MEDIUM MODETYPICAL SITUATON IN THE NIGER DELTA

An Oil Spill Site in the Niger Delta, NigeriaSource: www.guardian .com


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AIM AND OBJECTIVESThe aim of this study is to improve the compressivestrength of concrete cured in crude oil with glass powd

The Objectives of the study To monitor the strength of concrete when it is cured icrude oil medium

To determine the pozzolanic activity of glass powder To improve the compressive strength of concrete usinwaste glass powder


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TESTS CARRIED OUTModified Chapelles TestThis was used in determining the pozzolanic activitglass powder. The test is defined based on the amountCalcium oxide (or calcium hydroxide) consumed specific amount of the specimen.Compression Test

Compression Test is most widely used to measure compressive strength of concrete. This was donespecified in the test method (BS EN 12390-2:2000).


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MATERIALS USEDOrdinary Portland cement

(Grade 42.5R) Glass PowderCrude oil M

(Bonny L

Other Materials Include: Fine aggregates, Coarse aggregate and Water


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METHODS The materials were weighed out in accordance to themix proportion of 1:1.14:2.66 as calculated for

characteristic strength of 40N/mm 2 in the mix desi(w/c was maintained at 0.35)

The specimens were differentiated with respect topercentage of the added recycled glass powder of 0, 1and 20%

The cubes were cured in crude oil medium and waterwas used for the control experiment


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METHODS A mechanical mixer was used in mixing the materialstogether(sand, gravel, cement, glass and water)

After mixing, the slump test for each batch was taken

The Mould was filled in three layers with 25 blows gto each layers successively

The concrete was then left undisturbed for 24hrs befode-moulding


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METHODSMechanical Mixer During Mixing Slump Test


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METHODSConcrete levelled out in mould Compression Testing Mac


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RESULTS & DISCUSSIONSModified Chappelles Test

Sieve size

m

Average titre

value

Amount of Ca(OH)2 consumed

by 1g of glass powder

150 4.03 1203.99

300 4.43 1090.98

According to the French stan(NF P 18513 Annexe A, 201

The minimum amount of Cato be consumed by the glass

for it to be considered a pozz660mg/g and the result gaveof 1203.99 and 1090.98mg f150m and 300m respecti


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RESULTS & DISCUSSIONSLUMP TEST

% of glass powder Slump test result

0 % 30mm

10 % 26mm

20 % 17mm

The slump test resushows that theworkability of thecement decreases wincrease in thepercentage of glasspowder in the mix.


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RESULTS & DISCUSSIONConcret

e Age Compressive Strength (N/mm 2)

0%Water

0% Oil 10%Water

10% Oil 20%Water

20% Oil

Day 7 23.11 14.96 22.96 21.48 18.81 18.52

Day 14 26.81 17.78 23.26 22.37 21.19 20.89

Day 28 31.41 20.44 25.33 25.33 22.52 22.81

The decrease in stdue to the absorptionoil into the microstrthe matrix of concremay have caused d

the gel and weakenicohesive forces in thus, resulting to strength developmeand Uche, 2009).

COMPRESSIVE STRENGTH TEST


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RESULTS & DISCUSSION

The decreased compressive strengalso be attributed weakening in thstrength between paste and aggregconcrete matrix duriprocess. (Francis et a0.00

5.00

10.00

15.00

20.00

25.00

30.00

35.00

0% Water 0% Oil 10% Water 10% Oil 20% Water 20% Oil

Compressive Test Results

Day 7 Day 14 Day 28


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CONCLUSIONSBased on the research work done, the following

conclusions can be reached.

The 28 day compressive strength of concrete cured incrude Oil was reduced by 35% when compared toconcrete cured in water

There was increase in the strength of concrete cured icrude oil when glass powder was added

Glass powder is pozzolanic


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RECOMMENDATIONS

Durability test should be conducted to verify thepermeability of the concrete cured in crude oil.

Curing can be done for a longer duration to study thelong term effect of the crude and glass powder on theconcrete samples.


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THANK YOU


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REFERENCES Ajagbe, W.O., Agbede, O.A. and Dahunsi, B.I.O. (2012)

Effect of crude oil impacted sand on the properties ofconcrete Procs 4th West Africa Built Environment Rese

(WABER) Conference,24-26 July 2012, Abuja, Nigeria, 189. Odufuwa, O.O. (2011). Improving the compressive strenof crude oil impacted Sand concrete, Unpublished B.scthesis: Civil Engineering Department. University of IbadIbadan.

Ramzi B.Abdul, et al (2000). Compressive and tensilestrength of concrete loaded and soaked in crude oil.Engineering journal of the University of Qatar, vol.13, 20

Ukoli, M.K., 2001. Environmental Factors in themanagement of the Oil and Gas Industry in Nigeria posteweb. (http://www.warmafloor.co.uk).

glass powder as a pozzolan

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