{"id":2028,"date":"2010-02-19T23:24:24","date_gmt":"2010-02-19T20:24:24","guid":{"rendered":"http:\/\/www.ceprocim.ro\/?page_id=2028"},"modified":"2010-05-03T15:21:09","modified_gmt":"2010-05-03T13:21:09","slug":"cenrad","status":"publish","type":"page","link":"https:\/\/www.ceprocim.ro\/en\/activitati\/proiecte\/cenrad\/","title":{"rendered":"cenrad-en"},"content":{"rendered":"

Assessing the radiological risk to public health by usingnew composite binding systems in dwelling construction\u00a0
CENRAD CEEX-M1-C2-902<\/h2>\n
Contract No: 712\/2006\u00a0
Director proiect:<\/strong> chim. Ilie Gabriela
Telefon: 3188893\/175\u00a0
e-mail:\u00a0gabriela.ilie@ceprocim.ro<\/a><\/strong><\/div>\n
<\/a><\/strong><\/strong><\/div>\n

1.1 Client:<\/span><\/strong> The MENER Programme, Faculty of Power Engineering, University Politehnica of Bucharest<\/strong><\/strong><\/p>\n\n\n\n
\"Politehnica<\/td>\nFaculty of Power Engineering, University Politehnica of Bucharest
Programul “Materiale Noi, Micro si Nanotehnologii – MATNANTECH”<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

1.2. Project Coordinator:<\/span> CEPROCIM S.A. Bucuresti<\/span><\/strong><\/strong><\/strong><\/p>\n\n\n\n
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\"Ceprocim-Research<\/p>\n<\/td>\n

ROMANIA, 6 Bucharest, # 6 blvd. Preciziei, code 062203
phone: +(4021) 318 88 84; 318 88 90; 318 88 93.
fax:\u00a0 +(4021) 318 88 76; 318 88 94.
E-mail 1:\u00a0office@ceprocim.ro<\/a>
E-mail 2:res@ceprocim.ro<\/a> <\/strong>
Website:\u00a0www.ceprocim.ro<\/a><\/strong><\/td>\n		\"Iso<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

1.3 Parteneri :<\/span><\/strong><\/strong><\/strong><\/p>\n

Partner 1: The National Institute of Research and Development for Metals and Radioactive Resources<\/strong><\/strong><\/p>\n\n\n\n
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Partner 2: The Technical University of Civil Engineering, Bucharest<\/strong><\/strong><\/p>\n\n\n\n
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Partner 3: The Technical University of Civil Engineering, Bucharest<\/strong><\/strong><\/p>\n\n\n\n
FUNDATIA PENTRU STIINTA SI INGINERIA\u00a0
MATERIALELOR – “SERBAN SOLACOLU”
Str. Gheorghe Polizu, nr. 1, cod 011061, Sector 1, Bucuresti<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a>
1.4. Duration: <\/span><\/strong>August 2006 – September 2008<\/p>\n

1.5.Description:<\/span><\/strong><\/strong><\/strong><\/p>\n

1.5.1.\u00a0Scope:<\/span><\/strong> <\/p>\n

The purpose of the project is to monitor the radioactive content in cement-based building materials with fly ash addition.<\/strong><\/strong><\/p>\n

1.5.2.\u00a0Summary:<\/span><\/strong><\/strong><\/strong><\/p>\n

The purpose of the project is to monitor the radioactive content in cement-based building materials with fly ash addition. The outcome of the project is a database on cement-based building materials with fly ash addition in the maximum admissible ratio for such materials.
The increasing use of fly ash in developing new composite binding systems is explicable by the properties of such systems that lend the systems technical and economical competitiveness and by the need to introduce waste into the economic circuit.<\/p>\n

When concrete is prepared by using a binding system based on fly ash, the system will become a radioactively polluting source for the human body. The irradiation comes from natural radionuclides that are concentrated in the fly ash resulted from burning coal in power stations.
The project proposes establishing by means of investigations, tests, and physical and chemical analyses the fly ash\/cement ratios that allow the compound product to become raw material for concrete preparations that should comply with legal requirements in terms of radioactivity.<\/p>\n

These ratios will be distinctly studied for each type of fly ash from the main coal-based power stations in Romania, while assessment of the corresponding risk will be made in every case according to a methodology validated by the National Commission for Nuclear Activities CNCAN. The methodology will include assessment of effective doses of gamma irradiation and Rn 222 inhalation (radon or radium emanation).<\/p>\n

The parameter characterising the radioactivity of concrete for dwelling building is the radioactivity index with a maximum admissible limit set by Order of the Ministry of Health OMS No. 381\/ 5 in April 2004. The calculus of this index includes polluting radionuclides Ra226, Th232, and K40.<\/p>\n

The project will set maximum percentages of inclusion for every type of fly ash into the finished product (concrete) so that the irradiation dose in dwellings should not exceed the admissible limits imposed by enabled bodies: the National Commission for Nuclear Activities (CNCAN) and the Ministry of Health.<\/strong><\/strong><\/p>\n

1.5.3\u00a0Objectives:<\/span><\/strong><\/strong><\/strong><\/p>\n