BIOMASS AGGREGATE CONCRETE FOR SOFT SOIL SUBBASE (S3) SYSTEM
YL Lee, PhD, MCSM
Faculty of Civil and Environmental Engineering, UTHM, 86400 Parit Raja, Batu Pahat, Johor Darul Takzim, Malaysia.
30 January 2013
• Fact Sheet
• Name of Rice Miller - Lok Eak Khim Rice Mill, Skun, Kampong Cham, Kingdom of Cambodia
• Date of Installation – November 2007
• Capacity of Gasifier – 250kW
• Type of Gasifier – Downdraft type
• Saving of Diesel to existing Diesel Engine – 85%
• Carbon credit – not pursued
• Addition of Gas Engine 250kW, installed in May 2008.
Emerging Technology
A method of using air bubbles and catalyst in cement mortar
Reduce density Enhance durability performance
On-site production of KUIKcrete
Within 3 days, 1800m3 of foamed concrete (6m high) was cast. The total volume was about 180 units of low cost houses.
Technology Showcase
PROPERTIES OF ORIGINAL SOILProperties Values
Liquid limit, LL (%) 67.47
Plastic limit, PL (%) 30.16
Plasticity index, PI (%) 37.31
Moisture Content (%) 84.19
pH Soil 3.32
pH Water 3.82
Color Light gray
Specific gravity, Gs 2.62
Grain size distribution
Silt (%) 79.5
Clay (%) 10.7
Fines (%) 10.8
Soil Type MH (organic silty clay with high plasticity)
Unconfined compressive strength of TIA treated soil under humid curing
CuringPeriodAdditiveContent
7 Days 14 Days 28 Days
0% TIA + 100% cement(Specimen Cement)
85.010 kPa 205.621 kPa 304.202 kPa
8% TIA + 92% cement(Specimen A)
53.066 kPa 97.046 kPa 98.988 kPa
10% TIA + 90% cement(Specimen B)
79.787 kPa 154.178kPa 158.562kPa
13% TIA + 87% cement(Specimen C)
121.309 kPa 134.611 kPa 160.264kPa
Unconfined compressive strength of TIA treated soil under wet curing
CuringPeriodAdditiveContent
7 Days 14 Days 28 Days
0% TIA + 100% cement(Specimen Cement)
79.507 kPa 72.441 kPa 78.733 kPa
8% TIA + 92% cement(Specimen A)
41.156 kPa 123.303 kPa 41.686 kPa
10% TIA + 90% cement(Specimen B)
63.850 kPa 109.568 kPa 155.823 kPa
13% TIA + 87% cement(Specimen C)
49.233 kPa 83.381 kPa 93.951 kPa
Compressive strength development of TIA soilcrete (Humid Condition)
0
100
200
300
400
0 2 4 6 8 10 12 14
TIA % CONTENT IN 10% CEMENT (%)
Str
en
gth
, q
u (
kPa
)
7 Days Curing
14 Days Curing
28 Days Curing
Compressive strength development of TIA soilcrete (Wet Condition)
0
100
200
0 2 4 6 8 10 12 14
TIA % CONTENT IN 10% CEMENT (%)
Str
en
gth
, q
u (
kPa
)
7 Days Curing
14 Days Curing
28 Days Curing
ACKOWLEDGEMENT
We wish to acknowledge Cradle Fund for supporting (www.1.com.my) and www.1.net.my leading to the Kumomo Tree Charity Project for humanity.
Referenceswww.1.net.my
www.ashmann.com
www.biomass.org.my