1. TREMTI 2005 ___ LIME TREATMENT FEED BACK ______
Daniel PUIATTI

2. Synopsis Part 1 : Lime Treatment Durability
Part 2 : Diversity of Application
Part 3 : Technological Improvements
Part 4 : New Lime Based Products
Part 5 : Codification

3. Part 1 : Lime Treatment Durability
C022 : INFLUENCE OF CURING TIME, PERCOLATION AND TEMPERATURE ON THE COMPRESSIVE STRENGTH OF A LOAM TREATED WITH LIME
R. De Bel et al. (Belgium)
Durability of Lime treatment.
Positive effect of time and temperature.
Curing time before percolation is benefical.
After percolation, remaining Ca++ and pH still allows pozzolanic reactions to go on.

4. Part 1 : Lime Treatment Durability
C117 : INFLUENCE OF WATER SATURATION ON THE GEOTECHNICAL BEHAVIOUR OF A LIME TREATED SILT
Pr. J. Maertens et al. (Belgium)
Performance increase after saturation
No clear correlation with level of compaction
Water contents slightly above OMC is beneficial

5. Part 1 : Lime Treatment Durability
C184 : THE EFFECT OF ORGANIC CONTENT ON LIME TREATMENT OF HIGHLY EXPANSIVE CLAY
Dr. Th. M. PETRY et al. (Missouri - USA)
Lime can modify organic soils (2 to 6% peat).
Lime reduces the swell of clayey organic soils.
Organic soils need more lime than non organic soils.

6. Part 1 : Lime Treatment Durability
C122 : FROST SUSCEPTIBILITY AND PERFORMANCE OF LIME TREATED SOILS
A. C. LOTTMANN (Germany)
Durability of lime treatment proven on 30 roads.
Lime treatment modifies a highly frost susceptible soil (class F3) into a less frost susceptible soil (class F2) if :
Lime > 3%
Suitable soils
Professional works !
Thereby the required frost-resistant thickness of the pavement structure can be minimized.

7. Part 1 : Lime Treatment Durability
C076 : LIME TREATMENT OF EXCAVATED SOILS: STOCKABILITY OF A LIME TREATED SILT
Q.Bollens (Belgium)
Gradual and substantial improvement
Slight recarbonation (10-15 cm) on the surface protects the stock

8. Part 2 : Diversity of Applications
C036 : REVISITING BRAZILIAN STATE ROAD A WELL SUCCEEDED CASE OF LIME STABILIZED ROAD BASE
Pr. W. P. Núñez et al. (Brasil)
Lateritic soils are improved by lime stabilization (pozzolanic reaction)
Lime : 3% to 5%
Lime stabilized bases increase the fatigue life of HMA wearing courses and protect the subgrade against rutting

9. Part 2 : Diversity of Applications
C102 : USE OF VERY HIGH PLASTIC CLAYEY MATERIALS IN FILL CONSTRUCTION (42<PI<59)
V. Berche et al. (France)
High plastic soils can be treated with lime
Good performance (Ev2 > 50 MPa) can be obtained with 2 to 3% of lime

10. Part 2 : Diversity of Applications
C023 : RECYCLING OF MATERIALS FROM URBAN TRENCHES AFTER TREATMENT
A.Quibel et al. (France)
Material from trench (silt) treated with lime (2%)
Possible re-use in trenches, directly under pavements layers,
Compaction : Thickness of the layers : 20cm

11. Part 2 : Diversity of Applications
C061 : LABORATORY AND IN SITU EVALUATION OF STABILISATION OF LIMESTONE AGGREGATES USING LIME
D.Puiatti et al. (France)
1000
3000
5000
7000
9000
100
200
300
400
Curing time (days)
Modulus (MPa)
Lime (1%) improves performance of soft limestone
Results confirmed by experimental pavement :
E : 1400 to 3000 MPa after 1 year
Good behaviour after 9 years

12. Part 2 : Diversity of Applications
C103 : ROAD RECLAIMING AND WIDENING. IMPROVEMENT OF ROAD LOAD CAPACITY
Pr. M.Iwanski et al. (Poland)
Lime treatment (5%) of the shoulder (clayey sand) as a subgrade for a road widening
Performance immediately after treatment: Ev2 > 52MPa

13. Part 2 : Diversity of Applications
C094 : RESTORATION OF RAILWAYS IN PORTUGAL
M.Marques et al. (Portugal)
Embankment
Limestone 0/40mm
15 cm
20 cm
60 Mpa
80 Mpa
120 Mpa
ballast
Lime Treated capping layer (2%)
35 cm
Under ballast 0/31,5mm

14. Part 2 : Diversity of Applications
C026 : PERFORMANCE OF LIME IMPROVED RAILWAY SUBGRADE AFTER 5 YEARS IN SERVICE
V.Herle (Czech republic)
Lime treatment of heterogeneous silty clay soil with rock fragments is possible.
The lime-treated soil has substantially improved its strength with time.
Behaviour of lime treated soil in the railway subgrade was superior to the use of concrete panel slabs.
Lime treatment is economic, environmentally friendly and fast.

15. Part 2 : Diversity of Applications
C118 : The revalorisation of clay polluted aggregates treated with lime for use in rural and forest roads or subgrades
F.Verhelst et al. (Belgium)
Optimisation of the quarry management
Durable
Good economics
Landscape friendly
Simple technique
Reduced maintenance

16. Part 3 : Technological Improvement
C152 : IN SITU CRUSHING AND TREATMENT OF LIMESTONE FOR CAPPING LAYER
D.Gandille et al. (France)
C133 : EFFECTIVE MOISTURE CONTROL OF IN SITU SOIL TREATMENT
G.Fondain et al. (France)

17. Part 3 : Technological Improvement
C143 : IN SITU RECYCLING OF EARTH MOVING WASTE WITH « MOBILE WORKSHOP »
V.Duclos et al. (France)
C073 : USE OF HIGH-PERFORMANCE FIXED INSTALLATIONS TO STABILISE CAPPING LAYERS AND LOCAL PRODUCTS
J.Bonvallet et al. (France)

18. Part 4 : New Lime based Products
C139: INFUENCE OF A LIME WITH A REDUCED DUST EMISSION ON THE DEVELOPMENT OF SOIL TREATMENT IN CIVIL ENGINEERING
A.Laudet et al. (Belgium)
C181 : ENVIRONMENT AND SAFETY IN SOIL TREATMENT - RN286 IN PARIS AREA - USE OF PRODUCTS WITH REDUCED DUST EMISSION
D.Puiatti et al. (France)
Economical and safe
Respect the environment
Respect the neighbourhood
Better conditions for the workers

19. Part 4 : New Lime based Products
C093: INJECTION OF MILK OF LIME FOR SOIL TREATMENT
C.Joly et al. (France)
Milk of Lime (or lime slurry) for the treatment of dry soils.
The Injector enables injection, down to 70cm, of the exact quantity of slurry, without any streaming at the surface of the layer.
Injection capacity : up to 90 l/m2

20. Part 5 : Codification
C057 : BELGIAN CODE OF GOOD PRACTICE FOR SOIL TREATMENT WITH LIME AND / OR CEMENT
J.Detry & al. (Belgium)
C104 : THE FRENCH TECHNICAL GUIDE FOR THE TREATMENT OF SOILS WITH LIME AND/OR CEMENT APPLICATION TO THE PAVEMENT LAYERS
JC.Auriol et al. (France)
C147 : EN14227 PARTS THE EUROPEAN STANDARD FOR HYDRAULICALLY TREATED SOILS
J.Kennedy (United Kingdom)

21. Part 5 : Codification
C170 : SOIL IMPROVEMENT WITH HIGHER DEMANDS IN GERMAN GUIDELINES
J. Blosfeld (Germany)
Transformation of a F3-soil into a F2-soil reduces the thickness of frost resistance road pavement by 10cm !
3% minimum binder content
70 MN/m² minimum deformation modulus immediately after placement
Lime treatment must be finished at the latest 2 months before frost period