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SIKA EGYPTENG. ASHRAF ELZINYTechnical & Export Manager
LIGHTWEIGHT CONCRETETECHNOLOGY AND APPLICATION
As a lightweight, low-viscous filling material for:
� Building as thermal insulating layer
(Measuring indicative thermal conductivity test in BS 874 part 3.2)
� Shutdown sewerage.
� Fill blocks, spaces around pipes, ……..etc.
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AREA OF APPLICATION
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Cellular Concrete System
LIGHTWEIGHT CONCRETETECHNOLOGY AND APPLICATION
Cellular Concrete - System
Foam Generator Foaming AgentConsulting
Production of Mortar and Concrete
with Preformed Foam
Ready Mixed
Mortar
Cellular
Concrete
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Lighter than water!
LIGHTWEIGHT CONCRETETECHNOLOGY AND APPLICATION
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Composition of Cellular Concrete
LIGHTWEIGHT CONCRETETECHNOLOGY AND APPLICATION
100
80
60
40
20
0
1,6 1,2 0,8 0,5
Dry unit weight in kg/l
Vol %
Foam
Sand
Cement
Water
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Cellular Concrete - Properties
LIGHTWEIGHT CONCRETETECHNOLOGY AND APPLICATION
Fresh Concrete Hardened Concrete
� flowable
� pumpable
� easy workability
� no compaction necessary
� Adjustable in unit weight and strength
� durable and stable in shape
� Thermal insulating
� higher resistance to fire
� increased shrinkage
� not decomposable
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Compressive Strength of Cellular Concrete Depending on Dry Unit Weight
LIGHTWEIGHT CONCRETETECHNOLOGY AND APPLICATION
0
2
4
6
8
10
12
14
16
0,4 0,6 0,8 1,0 1,2 1,4 1,6
Dry Unit Weight in kg/l
Co
mp
ressiv
e s
tren
gth
in
MP
a
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Components of Cellular Concrete
LIGHTWEIGHT CONCRETETECHNOLOGY AND APPLICATION
Type Usual Materials
cementCEM I 32,5 R
CEM I 42,5 R
fillerlimestone flour
fly ash
aggregatessand 0 – 2 mm
0 – 4 mm
foam agentSB 2 - Organic tenside
stabilizerST 3 - powder, (methyl cellulose)
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Mix Design of Cellular Concrete
LIGHTWEIGHT CONCRETETECHNOLOGY AND APPLICATION
Cement content 300 - 350 kg/m³
Water content150 l/m³ with foam generator SG 70
180 l/m³ with foam generator SG S 9
Foam unit weight0,03 – 0,06 kg/l with foam generator SG 70
0,03 – 0,05 kg/l with foam generator SG S 9
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Production on the Site
LIGHTWEIGHT CONCRETETECHNOLOGY AND APPLICATION
Concrete mixing plant
sand
cement water
(compulsory mixer)
On the site with foam generator SG 70
foam agent
SB 2 water
Foam production with foam
generator SG 70
Technical Data
Colour and state : blue-green liquid
Density (20oC): 1.04 g/cm³
Chloride content: < 0.1 %
Recommended dosage: 150 – 230 g / 100 l foam
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FOAM AGENT SB2
FOAM AGENT FOR THE PRODUCTION OF POROUS
LIGHTWEIGHT CONCRETE BY FOAMING METHOD
Foam Generator SG 70
LIGHTWEIGHT CONCRETETECHNOLOGY AND APPLICATION
Water hose
Connection
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Foam production with SGS 9
LIGHTWEIGHT CONCRETETECHNOLOGY AND APPLICATION
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Applications: Re-Filling of Trenches and Excavations
LIGHTWEIGHT CONCRETETECHNOLOGY AND APPLICATION
� filling of working spaces at the side of pipes
� avoiding consolidation settlement
street street
Cellular
Concrete
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Applications: Filling of Sewage Pipes
LIGHTWEIGHT CONCRETETECHNOLOGY AND APPLICATION
� Pouring directly in the shaft
� Complete filling of the cross-section
< 50 m
street
Cellular concrete
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Applications: Cellular Concrete below Basement Slab
LIGHTWEIGHT CONCRETETECHNOLOGY AND APPLICATION
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Applications: Filling between Floor Timbers
LIGHTWEIGHT CONCRETETECHNOLOGY AND APPLICATION
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Applications: Roof Surface with Cellular Concrete as levelling layer
LIGHTWEIGHT CONCRETETECHNOLOGY AND APPLICATION
