Advanced Materials Research Vol. 1020 (2014) pp 879-882 © (2014) Trans Tech Publications, Switzerland doi:10.4028/www.scientific.net/AMR.1020.879 All rights reserved. No part of contents of this paper may be reproduced or transmitted in any form or by any means without the written permission of TTP, www.ttp.net. (ID: 158.196.95.28, VŠB-Technical University of Ostrava, Ostrava, Czech Republic-23/09/14,14:11:57) 880 Contemporary Problems in Architecture and Construction Advanced Materials Research Vol. 1020 881 882 Contemporary Problems in Architecture and Construction