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# Rannik killing niitlaan_probleem_ehituskruusa_uuringul

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• 1. KILLUSTIKU KAEVANDAMINE JA KASUTAMINE 8. PROBLEEM EHITUSKRUUSA UURINGUL Elo Ra n n ik , Ma ir y Killin g , Er k i Niitla a n 1 Eh itu s k illu s tik k u o n v iim a s e v iie a a s ta jo o k s u l Ee s tis to o d e tu d k o k k u h in n a n g u lis e lt 3 0 m iljo n it to n n i . Ko g u to o d e tu d m a te rja l o n le id n u d ta rb ija n in g n õ u d lu s o n jä tk u v a lt s u u r. Aa s ta te l 20 0 2 – 20 0 5 tõ u s is k illu s tik u to o tm in e (ta rb im in e ) k a e v a n d a tu d m a h tu d e p õ h ja l k e s k m is e lt 15 % a a s ta s . Mõ n in g a s t la n g u s t v õ ib s ta tis tik a s tä h e ld a d a 20 0 6 . a a s ta l, m il e h itu s lu b ja k iv i, d o lo k iv i ja k ru u s a k a e v a n d a m is e m a h u d v ä h e n e s id 20 0 3 . a a s ta ta s e m e le . 20 0 7 . a a s ta k o h ta a n d m e d p ra e g u k a h ju k s p u u d u v a d , k u id ilm s e lt m a h u d k a s v a s id . To o d e tu d k illu s tik u k a s u tu s v a ld k o n n a d o n m itm e k ü lg s e d : te e d e a lu s e e h itu s , d re e n p a d ja d , b e to o n i ja a s fa ld i tä ite d jp m – ig a v a ld k o n d o m a Do lo k iv i fik s e e ritu d k rite e riu m ite n in g n õ u e te g a . 12% Lu b ja k iv i Te g e lik u lt o n k a k illu s tik u to o tm in e s a m a 55% m itm e k ü lg n e , k u i s e lle k a s u ta m in e . Erin e v a id te h n o lo o g ilis i la h e n d u s i o n v õ im a lik ra k e n d a d a a la te s m a a v a ra lo o d u s lik u s t o le k u s t Kru u s e e m a ld a m is e s t k u n i e rin e v a te p u ru s ta m is - ja 33% s õ e lu m is te h n o lo o g ia te n i v ä lja , m ä ä ra te s n ii k o o s to o rm e k s k a s u ta v a m a a v a ra k v a lita tiiv s e te ja k v a n tita tiiv s e te o m a d u s te g a lõ p p to o d a n g u k v a lite e d i. P e a m is e k s k illu s tik u to o rm e k s Ee s tis o n e h itu s lu b ja k iv i, m is m o o d u s ta b kogu k a e v a n d a tu d m a h u s t 5 5 % . Ka e v a n d a m is v iis i ja J o o n is 8-1Lu b ja k iv i, d o lo k iv i ja k ru u s a fü ü s ik a lis -m e h a a n ilis te n ä ita ja te p o o le s t k a e v a n d a m is e p r o p o r ts io n a a ln e ja o tu s s a m a la a d n e o n e h itu s d o lo k iv i, m ille o s a tä h ts u s o n 12 % . Viim a s e l a ja l rä ä g ita k s e ü h a e n a m k a p õ le v k iv i k a e v a n d a m is e ja rik a s ta m is e jä ä k id e k a s u ta m is e s t, m is te g e lik u lt o n s a m u ti v a ld a v a lt lu b ja k iv i. Sa m a s jä ä b k illu s tik u to o tm is e l te e n im a tu lt tä h e le p a n u ta e h itu s k ru u s (v e e ris e d , m u n a k a d , p a e la h m a k a d ), m ille o s a tä h ts u s t e i s a a a la h in n a ta – 3 3 % . Ka rb o n a a tk iv im i m a a rd la id , k u s k ä e s o le v a l a ja l k a e v a n d a ta k s e , o n s u h te lis e lt v ä h e (16 ), k u n a n e n d e le v ik Ee s ti g e o lo o g ilis e e h itu s e tõ ttu o n e b a ü h tla n e n in g m a a v a ra v ä lja m is e m õ ju H a rju 6 1% k e s k k o n n a le p iira b s e lle k a e v a n d a m is t. O lu lis e lt ro h k e m o n e k s p lu a te e rita v a id k ru u s a m a a rd la id Jõ g e v a 2 (6 8) ja n e id le id u b k õ ik ja l ü le Ee s ti. Lis a tu d 17 % jo o n is te lt (2 ja 3 ) n ä h tu b , et k ru u s a k a e v a n d a m in e o n m a a k o n d a d e s , k u s s u u ri k a rb o n a a tk iv im i m a a rd la id e i o le o lu lis e lt Lä ä n e - s u u re m , k u i n e is , k u s k a e v a n d a ta k s e lu b ja k iv i P ä rn u 9 % Viru 9 % v õ i d o lo k iv i. Era n d ik s o n s iin m u id u g i H a rju m a a k o n d , k u s k a ta rb im in e o n te is te s t o lu lis e lt Sa a re 1% Lä ä n e 2% s u u re m . Nii v õ ib k i ö e ld a , et R a p la 1% k a rb o n a a tk iv im ik a rjä ä rid k a ta v a d v a ld a v a lt s u u rte ja riik lik u tä h ts u s e g a o b je k tid e , k u id k ru u s a k a rjä ä rid p e a m is e lt v ä ik s e m a te ja k o h a lik u tä h ts u s e g a o b je k tid e v a ja d u s i. Ku id n ii J o o n is 8-2 Ka r b o n a a tk iv im ite k a e v a n d a m in e k a rb o n a a tk iv im i kui k ru u s a m a a rd la te m a a k o n d a d e lõ ik e s k a s u tu s e le v õ tm is e l p e a m e ü h tv iis i tä p s e lt te a d m a m a a v a ra o m a d u s i ja v a ru , m ille s t o le n e v a d e d a s p id is e d te h n o lo o g ilis e d v a lik u d ja ä rip la a n . Mis ta h e s m a a rd la s le v iv a m a a v a ra k v a lita tiiv s e d ja k v a n tita tiiv s e d o m a d u s e d m ä ä ra ta k s e g e o lo o g ilis e u u rin g u g a , n ii o n s e e o ln u d ig a riig ik o rra a ja l. P ik k a a e g a o n p ü s in u d m u u tu m a tu l k u ju l k a 1 Kõ ik a rtik lis to o d u d s ta tis tilis e d ü ld is tu s e d o n te h tu d Ee s ti m a a v a ra d e b ila n s i (20 0 2-20 0 6 ) a n d m e te l 2 0 1.0 3 .20 0 8 . a s e is u g a Ma a -a m e ti a n d m e te l. TTÜ MÄ EINSTITUUT 29