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ee/index.php/256/ 27.11.2011 http://www.katuseportaal.ee/lame.htm 27.11.2011 http://www.katuseabc.ee/est/sbsrull 27.11.2011 http://www.pittslittle.com/high_density_concrete.html 06.12.2011 http://www.know-house.ru/info_new.php?r=concrete2&uid=34 06.12.2011 http://books.google.ee/books? id=Z4djCUeqHaUC&pg=PA366&lpg=PA366&dq=high+density+concrete+aggregate&source=b l&ots=rz6BrjwGXO&sig=qNm1kYLpPgrAipgD4s- Nt_qlqNU&hl=ru&sa=X&ei=hYn9TpPQCO6P4gTuxsCNCA&ved=0CFgQ6AEwBg#v=onepag e&q=high%20density%20concrete%20aggregate&f=false 06.12.2011 http://www.minelco.com/en/Products-applications/Applications/Heavy-concrete/ 06.12.2011 16
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