1.4. Duration: 1st August 2006 – 15th September 2008

1.5.Description:

1.5.1. Scope:

The purpose of the Project is to gather human resources and materials under a national partnership to create new knowledge in the field of cementitious grouting systems with application in structure consolidation, geotechnics and environmental engineering, i.e., structure strengthening and reinforcing, artificial cementation, rock sealing, slope and flank stabilisation, waste cementation, soil waterproofing etc.
The end result of the research will consist in the development of highly competitive cementitious grouting systems with high performances. 
The main objectives are:

• Development of ultrafine cementitious systems with a narrow particle size range, i.e., more than 65% particles below 16 microns
• Changing the rheological parameters of the cement pastes by optimising the use of additives and additions
• Developing of new composite grouting systems based on ultrafine cementitious systems

Quality similar to that of the proposed grouting materials can be found only in similar grouting materials manufactured at present in Japan, Germany, the USA, or France.

1.5.2. Objectives:

• Creation of knowledge in science and technology in the field of grouting materials
• Development of new ultrafine cementitious grouting materials with performances able to compete with other similar European materials
• Foundation of a scientific cluster to ease application of the obtained results in practice
• Dissemination of the obtained results.

1.5.3 Envisaged results:

Development for the first time in Romania of grouting fluids with properties that are highly competitive at the European level. The grouting fluids will be based on:

• Ultrafine ordinary cementitious systems
• Ultrafine mixed cementitious systems
• Ultrafine complex cementitious systems

1.5.4. Staff involved in the Project:

Professors: Eight individuals
Scientific Researchers, Grade 1: Six individuals
Scientific Researchers, Grade 2: Six individuals
Scientific Researchers, Grade 3: Seven individuals
Scientific Researchers: Seven individuals
Engineers: Eleven individuals
Six titles of doctor in total, and twelve aspirants at a doctor’s title

Stages	Results
Stage 1 Advanced knowledge in science and technology in the field of grouting materials and techniques	Enlarging the scientific knowledge in the use of modern grouting materials in the field of geotechnics and environmental protection New solutions for composite grouting materials with applications in concrete structure consolidation The required properties of the new materials New composite systems based on ordinary or mixed cement made by applying state-of-the-art technologies to be employed as grouting fluids in geotechnics in construction and environmental protection Highlighting the effect of using the additives on the rheology of the grouting cement pastes based on composite materials
Stage 2 Experimental investigations for developing grouting fluids based on ultrafine ordinary cement	Selecting a clinker composition adequate for grouting techniques. Characterisation of the selected clinkers – Chemical characteristics – Physical properties – Mineralogical characteristics – Structural characteristics Development of ordinary cement by employing optimal process technology methods Characterisation of the ultrafine binding materials – Chemical characteristics – Physical and mechanical properties Checking the rheological behaviour of the fluids based on ultrafine ordinary binding materials correlated with the thinning additives
Stage 3     Experimental investigations for developing the grouting fluids based on ultrafine mixed cement	Selecting and characterising the additions that are compatible and can be employed in the ultrafine mixed cement  Developing of ultrafine mixed cements Characterisation of the ultrafine mixed cement in terms of chemical, physical and mechanical properties, particularly the particle size distribution, adherence and shrinkage  Establishing the correlations between the physical, rheological and technological properties of the grouting fluids based on the ultrafine binding materials Evaluating the compatibility between clinker and the addition and the additive correlated with the rheological behaviour of the cement pastes Optimising the quality and technological parameters of the composite binding materials on the basis of the ultrafine mixed cement
Stage 4 Evaluation of the behaviour of ultrafine ordinary or mixed cementitious systems in complex composite grouting fluids	Experimental results regarding the development and characterisation of the composite binding materials Establishing the criteria of selection of the grouting system  Experimental results regarding the rheological properties Evaluation of the degree of abating the discontinuities in the ground (assessment of application)
Stage 5 Application in practice of the results of the research	Analysis of the behaviour of the grouting fluids in practice – Development of the composite materials based on ordinary and mixed cementitious systems – Establishing the rheological parameters of the grouting fluids Simulation of infrastructure consolidation by grouting with the new grouting fluids – The behaviour of the new grouting fluids – Evaluation of the results of the injection  Simulation of consolidation in geotechnics and/or in environmental engineering – The behaviour of the new grouting fluids – Evaluation of the results of the injection The SWOT analysis
Stage 6 Foundation of the scientific and technological cluster CONSINJECT	Establishing the activities and responsibilities within the cluster T The cluster coordinates the elaboration of scientific communications and papers-at least three-and the participation in conferences and symposiums

• Special grouting cement for consolidation in construction and geotechnics” la The 5th International Conference “New research trends in material science” (ARM – 5) – ing. E. Andreescu, ing. A. Moanta, ing. F. Amzica, ing. C. Draganoaia 5 – 7 septembrie 2007 Sibiu.
• Physical, mechanical and rheological properties of finely-ground grouting cement” – ing. E. Andreescu, ing. A. Moanta, ing. F. Amzica – 15th Edition of the Romanian International Conference on Chemistry and Chemical Engineering (RICCCE XV)
• Rheological behaviour changes when using fluidising additives in some injection fluids based on ordinary cement” – ing. E. Andreescu, ing. A. Moanta, ing. F. Amzica, prof. Dr. Ing. G. Rosu – EUROMAT 2007, 10-13 September 2007, Nuremberg, Germany
• Research on the rheological properties of ultrafine cements for hydraulic structures” – Lucrari Stiintifice, USAMV, Seria E, Vol. XLIX, 2007
• Special composite cements designed for strengthening concrete structures bz grouting – ing. E. Andreescu, ing. A. Moanta, ing. F. Amzica, prof. dr. ing. I. Lazau –Mechanics of composite materials, XV International Conference, 26-30 May, 2008, Riga, Latvia
• Effect of the fly ash and granulated blast furnace slag additions on the rheology of grouting cement – ing. E. Andreescu, ing. A. Moanta, ing. F. Amzica –11-14 May 2008, Istanbul, Turkey
• Injection binders designed for consolidation work in construction and geotechnics – ing. E. Andreescu, ing. A. Moanta, ing. F. Amzica, prof. Dr. Ing. G. Rosu – Patras, Grecia, iunie 2008
• Studiu experimental de realizare si caracterizare a unor cimenturi destinate lucrarilor de consolidare prin injectare -ing. E. Andreescu, ing. A. Moanta, ing. F. Amzica – Zilele Academice Timisene, 24-25 mai 2008, Timisoara
• Posibilitati de obtinere a unor cimenturi cu continut de cenusa de termocentrala destinate realizarii fluidelor de injectie -Zilele Academice Timisene, 24-25 mai 2008, Timisoara
• Integrarea cunostintelor si a metodelor de procesare avansate în lucrari de consolidare, lucrari geotehnice si de ingineria mediului prin tehnica injectarii cu fluide pe baza de sisteme cimentoide” – ing. E. Andreescu – Revista Româna de Materiale – 2/2008.
• Integrarea cunostintelor si a metodelor de procesare avansate în lucrari de consolidare, lucrari geotehnice si de ingineria mediului prin tehnica injectarii cu fluide pe baza de sisteme cimentoide – Cercetari experimentale de realizare a fluidelor de injectie pe baza de cimenturi unitare ultrafine” – ing. E. Andreescu – “Buletin Tehnic Informativ” An XXVI, nr. 3 trim II, 2007
• Cimenturi mixte, cu continut de cenusa de termocentrala destinate realizarii fluidelor de injectie – Revista Româna de materiale, 4/2007, vol. ,37, 271
• Integrarea cunostintelor si a metodelor de procesare avansate în lucrari de consolidare, lucrari geotehnice si de ingineria mediului prin tehnica injectarii cu fluide pe baza de sisteme cimentoide – Cercetari experimentale de realizare a fluidelor de injectie pe baza de cimenturi unitare ultrafine” – ing. E. Andreescu – “Buletin Tehnic Informativ” An XXVII, nr. 1 trim I, 2008
• Studiu experimental de realizare si caracterizare a unor cimenturi destinate lucrarilor de consolidare prin injectare – ing. E. Andreescu, ing. A Moanta, prof dr. M. Leca, prof dr. Ing. G Rosu – (in curs de publicare) Revista de Chimie, noiembrie 2008