RECYCLE CONRETE INTERLOCKING(RecCon)

NO NAME MATRIX NUMBER

1 MOHD FAREZWAN BIN RAKMAT 08DKA12F1148

2 MOHAMMAD RIZUWAN BIN HARUN 08DKA12F1091

3 SUZAIMI BIN DAUD 08DKA12F1106

SUPERVISOR: PN. BIBIE SARA BINTI SALLEH PN.AINUL HAEZAH BTE NORUZMAN

i COMPEX’15 POLIMAS

INTRODUCTION

OBJECTIVE• Produce a model of interlocking concrete using concrete wasted

from the ruins of old buildings

• Make experimental on Reccon ineterlocking use sieve analysis, compression and skid resistance test.

• Compare price of interlocking concrete and reccon interlocking

PROBLEM STATEMENT• Waste concrete not handle efficiently

• Impact on the environment

• Disposal area increased

SCOP• Use for light load

• Example pedestrian and reacreation

• Consist Waste concrete from construction

METODOLOGY

MATERIALS• CEMENT (PORTLAND)

• SAND

• RECYCLE CONCRETE /AGGREGATES / RECYCLE CONCRETE+ AGGREGATES

• PLASTICIZER

• WATER

• CUBE MOULD

• NEW RecCon MOULD

TRY AND ERROR

METHOD

TARGET : 100 % OF

RECYCLE CONCRETE REPLACING

THE AGGREGATES

,

80% , 60 % AND 50% OF

RECYCLE CONCRETE

ALSO WILL BE USE FOR

TRIAL PROCESS

THE BEST RESULT OBTAIN

FROM THE COMPRESSIVE

STRENGTH WILL BE USE

AS :

NEW MIX FOR RecCon

Interlocking

METHOD

MATERIAL SPECIFICATION FOR TESTING

BASED ON BS ……….., THE REQUIREMENT FOR COMPRESSIVE STRENGTH TEST ARE AS BELOW :

MATERIAL/ PREDICT TIME 7 DAYS 14 DAYS 28 DAYS

MATERIAL RATIO1 : 2 : 4 ( PORTLAND CEMENT : SAND : AGREGATES / RECYCLE

CONCRETE)

W/C RATIO 0.6

RECYCLE CONCRETE(%) 100 80 50 100 80 50 100 80 50

AGGREGATES(%) 0 20 50 0 20 50 0 20 50

SAMPLE = 9 SAMPLE = 9 SAMPLE = 9

TOTAL TOTAL SAMPLES : 27

Get sample from construction site

Breake sample into small size

Sieve analysis

Concrete mixing

Caring process for 7, 14 and 28 days

Test the concrete cube after 7,14 and 28 days

Use best mixture interlocking mould from factory

Reccon interlocking produce

a) Compression test

LAB TEST

SIEVE ANALYSIS• Determine the size of waste concrete

• Size use pass 14 retain at 10

Saiz ayak Berat

tertahan

(kg)

Jumlah

berat

tertahan

yang

terkumpul

(kg)

Peratus jumlah

berat tertahan

terkumpul (%)

Peratus jumlah

terkumpul

yang terlepas

(%)

40 0 0 0 100

20 0 0 0 100

14 0.28 0.28 (0.28/5*100)=5.6 (100-5.6)=94.4

10 4.12 4.40 (4.4/5*100)=88 (100-88)=12.0

4.75 0.6 5.00 (5/5*100)=100 (100-100)=0

jumlah 5.00 5.00 193.6 0

  Finess Modulus =Cumulative Percentage Weight Retained/100

= 193.6/100 =1.936

COMPRESSION TEST• Determine Net ratio and maximum strength

• Prepare cube for 7, 14, and 28 days.

• Each sample consist of 50%, 80% and 100% of waste concrete

 

Jenis

konkrit

 

Peratus

batu baur

Umur

Dimensi

kiub

konkrit

(mm)

Beban

mampata

n,

kN

Kekuatan

konkrit

(N/mm²)

Bacaan

purata

Spesifikasi

dibenarkan

 

 

 

 

Konkrit

batu baur

kitar

semula

50%  

7 hari

 

 

150

X

150

X

150

243 10.8 10.5

80% 255 11.3 10.5

100% 190 8.4 10.5

50%  

14 hari

394 17.5 12.0

80% 405 18.0 12.0

100% 236 10.5 12.0

50%  

28 hari

558 24.8 15.0

80% 586 26.0 15.0

100% 276 12.3 15.0

Rajah 4.5: Ujian kekuatan mampatan untuk 7 hari

Rajah 4.6: ujian kekuatan mampatan untuk 14 hari

rajah 4.7: ujian kekuatan mampatan konkrit untuk 28 hari

SKID RESISTANCE• Determine resistance on surface of reccon interlocking

• Provide comfortable walkway

• Differentiate resistance on surface between reccon interlocking, slab and Asphalt.

• Condition and type of surface was manipulated.

 

Types of surface

 

Temperature

Skid Resistance Coefficient Average of C value

A corrected value of Ct

C value

    1 2 3 4 5    

Reccon interlocking

29.5 15 18 18 19 14 16.8 15.6

Permukaan reccon yang basah

28.0 22 25 24 19 23 22.6 21.2

Lantai 31.0 42 36 38 36 37 37.8 34.6

Permukaan lantai yang basah

28.0 46 49 40 44 41 44.0 41.3

Jalan tar 37 28 28 29 29 23 27.4 24.0

Permukaan jalan tar yang basah

32

 

33 26 30 28 29 29.2 26.5

.

Jadual 4.8: Hasil data ujikaji ujian gelinciran yang dilakukan pada permukaan interlocking

Rajah 4.9: bar chart untuk skid resistance

Rajah 4.10: perbandingan diantara nilai reccon interlocking dan minimum spesifikasi rintangan gelenceran yang dibenarkan

DISSCUSSION

COST TO PRODUCE INTERLOCK CONCRETE

Bahan Harga per unit

(RM)

Kuantiti yang

diperlukan

Kos (RM)

Simen Portland

biasa

0.4/kg 0.5kg 0.20

Pasir 0.13/kg 1.0kg 0.13

Batu baur

kasar

0.06/kg 0.8kg 0.05

Konkrit

terbuang

Free 3.2kg -

    Jumlah 0.38

CONCLUSION• Reduce waste disposal

• reccon interlocking using 80% of waste concrete has fulfill the requirement of standard concrete interlocking.

• Cost to produce a product was reduce and economic compare to market

THANK YOU