{"id":43978,"date":"2024-12-03T14:25:44","date_gmt":"2024-12-03T13:25:44","guid":{"rendered":"https:\/\/betoff.eu\/?p=43978"},"modified":"2024-12-03T14:25:44","modified_gmt":"2024-12-03T13:25:44","slug":"postup-cistenia-betonovych-stien","status":"publish","type":"post","link":"https:\/\/betoff.eu\/sk\/postup-cistenia-betonovych-stien\/","title":{"rendered":"Postup \u010distenia bet\u00f3nov\u00fdch stien"},"content":{"rendered":"<p>Postup \u010distenia bet\u00f3nov\u00fdch stien. Popri vlastnostiach, ako je pevnos\u0165 kon\u0161trukcie, dlh\u00e1 \u017eivotnos\u0165, po\u017eiarna odolnos\u0165, akustick\u00e9 vlastnosti a nen\u00e1ro\u010dn\u00e1 \u00fadr\u017eba, s\u00fa bet\u00f3nov\u00e9 murovan\u00e9 budovy neuverite\u013ene kr\u00e1sne. Kr\u00e1su bet\u00f3nov\u00e9ho muriva mo\u017eno zachova\u0165 spr\u00e1vnym \u010disten\u00edm po\u010das v\u00fdstavby aj po\u010das \u017eivotnosti budovy.<\/p>\n<p>Dobre navrhnut\u00e1 a postaven\u00e1 murovan\u00e1 stena si vy\u017eaduje len ve\u013emi mal\u00fa \u00fadr\u017ebu, hoci ne\u010distoty m\u00f4\u017eu ubra\u0165 na inak pr\u00ed\u0165a\u017elivej stavbe. Zvy\u010dajne je potrebn\u00e9 vy\u010disti\u0165 \u0161kvrny od malty, stavebn\u00e9 ne\u010distoty a pr\u00edpadne v\u00fdkvety z obdobia v\u00fdstavby. V priebehu \u017eivotnosti budovy m\u00f4\u017ee by\u0165 potrebn\u00e9 \u010fal\u0161ie \u010distenie na odstr\u00e1nenie atmosf\u00e9rick\u00fdch ne\u010dist\u00f4t a sadz\u00ed alebo zmeny farby z ur\u010dit\u00fdch zdrojov. Spr\u00e1vnym \u010disten\u00edm mo\u017eno odstr\u00e1ni\u0165 ne\u010distoty a dosiahnu\u0165 konzistentnej\u0161\u00ed vzh\u013ead.<\/p>\n<p>V tejto TEK je uveden\u00fdch nieko\u013eko v\u0161eobecn\u00fdch techn\u00edk \u010distenia, ktor\u00e9 s\u00fa relevantn\u00e9 pre \u010distenie cel\u00fdch stien. Podrobnosti o tom, ako sa zbavi\u0165 \u0161kv\u0155n alebo lokalizovan\u00fdch ne\u010dist\u00f4t, n\u00e1jdete v \u010dasti Odstra\u0148ovanie \u0161kv\u0155n z bet\u00f3nov\u00e9ho muriva, TEK 08-02A (ref. 7).<\/p>\n<h2>Postup \u010distenia bet\u00f3nov\u00fdch stien. PODKLADY<\/h2>\n<p>Bet\u00f3nov\u00e9 murovacie prvky a malta pou\u017eit\u00e1 v murovanej stene m\u00f4\u017eu ma\u0165 vplyv na to, ako \u013eahko sa \u010dist\u00ed. \u010cistiace prostriedky a met\u00f3dy, ktor\u00e9 funguj\u00fa na jednu murovan\u00fa stenu, nemusia fungova\u0165 na in\u00fa. Okrem toho by ste mali venova\u0165 zv\u00fd\u0161en\u00fa pozornos\u0165 sten\u00e1m, ktor\u00e9 kombinuj\u00fa viacero materi\u00e1lov &#8211; ako napr\u00edklad bet\u00f3nov\u00e1 murovan\u00e1 stena s p\u00e1sov\u00fdm murivom z hliny.<\/p>\n<h2>Postup \u010distenia bet\u00f3nov\u00fdch stien. Jednotky bet\u00f3nov\u00e9ho muriva<\/h2>\n<p>Tenk\u00e1 vrstva cementovej pasty, ktor\u00e1 vznik\u00e1 pri be\u017enom procese v\u00fdroby bet\u00f3nov\u00e9ho muriva, d\u00e1va be\u017en\u00fdm alebo nearchitektonick\u00fdm bet\u00f3nov\u00fdm murovac\u00edm jednotk\u00e1m (CMU) pomerne hladk\u00fd povrch. T\u00fato vrstvu mo\u017eno odstr\u00e1ni\u0165 agres\u00edvnymi technikami \u010distenia, \u010d\u00edm sa odhal\u00ed kamenivo a zmen\u00ed sa kone\u010dn\u00fd vzh\u013ead. Na dosiahnutie konzistentn\u00e9ho vzh\u013eadu po \u010disten\u00ed by sa ka\u017ed\u00e9 intenz\u00edvne \u010distenie malo vykon\u00e1va\u0165 d\u00f4sledne na celom povrchu steny. Niekedy sa na hladk\u00e9 tv\u00e1rnice po\u017eaduje tlakov\u00e9 chemick\u00e9 alebo abraz\u00edvne \u010distenie, aby sa vytvoril trochu strakat\u00fd vzh\u013ead \u201eumyt\u00e9ho kame\u0148a\u201c.<\/p>\n<p>Jednotky s br\u00fasen\u00fdm povrchom &#8211; zn\u00e1me aj ako honovan\u00e9 alebo le\u0161ten\u00e9 jednotky &#8211; sa po v\u00fdrobe le\u0161tia, aby sa vytvoril hladk\u00fd povrch, ktor\u00fd pripom\u00edna le\u0161ten\u00fd pr\u00edrodn\u00fd kame\u0148. Povlaky, ktor\u00e9 sa \u010dasto aplikuj\u00fa na zv\u00fdraznenie farby, m\u00f4\u017eu pom\u00f4c\u0165 pri \u010disten\u00ed t\u00fdm, \u017ee zabra\u0148uj\u00fa nasiaknutiu ne\u010dist\u00f4t a in\u00fdch ne\u010dist\u00f4t do povrchu. Po\u010das v\u00fdstavby by sa malo vynalo\u017ei\u0165 v\u0161etko \u00fasilie na to, aby sa br\u00fasen\u00e9 jednotky udr\u017eiavali \u010dist\u00e9 a bez \u0161kv\u0155n od malty a v\u00fdkalov. Po d\u00f4kladnom vy\u010disten\u00ed sa tieto jednotky m\u00f4\u017eu v pr\u00edpade potreby znovu utesni\u0165.<\/p>\n<p>\u0160trukt\u00fara in\u00fdch architektonick\u00fdch jednotiek CMU, ako s\u00fa delen\u00e9 l\u00edcov\u00e9, delen\u00e9 ryhovan\u00e9 a tumbled jednotky, sa vytv\u00e1ra po\u010das v\u00fdroby a pripom\u00edna prav\u00fd kame\u0148. Tieto jednotky s\u00fa tolerantnej\u0161ie vo\u010di miernym v\u00fdkvetom alebo in\u00fdm zafarbeniam, preto\u017ee ich drsn\u00e1 \u0161trukt\u00fara m\u00e1 tendenciu zakr\u00fdva\u0165 mal\u00e9 zne\u010distenia. Okrem toho, ak je potrebn\u00e9 abraz\u00edvne \u010distenie, t\u00e1to \u0161trukt\u00fara je na\u0148 vhodnej\u0161ia.<\/p>\n<p>Na bet\u00f3nov\u00fa murovaciu jednotku sa nalep\u00ed trvalo farebn\u00fd povrch, ktor\u00fd sa zvy\u010dajne vyr\u00e1ba z polyesterov\u00fdch \u017eiv\u00edc, kremi\u010dit\u00e9ho piesku a in\u00fdch chemik\u00e1li\u00ed, \u010d\u00edm sa vytvoria glazovan\u00e9 bet\u00f3nov\u00e9 murovacie jednotky. V\u00fdsledn\u00fdm produktom je hladk\u00fd, nepriepustn\u00fd povrch, ktor\u00fd je mimoriadne odoln\u00fd vo\u010di \u0161kvrn\u00e1m a d\u00e1 sa \u010disti\u0165. \u0160muhy a v\u00fdkaly z malty a \u0161k\u00e1rovacej malty by sa mali odstr\u00e1ni\u0165 po\u010das v\u00fdstavby, k\u00fdm s\u00fa e\u0161te \u013eahko odstr\u00e1nite\u013en\u00e9, aby sa zabr\u00e1nilo ich \u00fapln\u00e9mu stuhnutiu na povrchu.<\/p>\n<p>Ke\u010f\u017ee malta m\u00e1 tendenciu spl\u00fdva\u0165, v\u00fdber farby podobnej bet\u00f3nov\u00e9mu murivu u\u013eah\u010duje odstra\u0148ovanie \u0161m\u00fah od malty zo steny. Ke\u010f\u017ee hladk\u00e9 alebo br\u00fasen\u00e9 jednotky m\u00f4\u017eu by\u0165 n\u00e1ro\u010dn\u00e9 na \u010distenie bez zmeny ich vzh\u013eadu, farba malty by sa mala zvoli\u0165 tak, aby zodpovedala farbe jednotky. Na odstr\u00e1nenie vidite\u013enej malty na sten\u00e1ch s kontrastnou farbou malty a murovac\u00edch jednotiek m\u00f4\u017ee by\u0165 potrebn\u00e9 intenz\u00edvnej\u0161ie \u010distenie.<\/p>\n<p>Vo v\u0161eobecnosti je najlep\u0161ie \u0161pecifikova\u0165 maltu s najni\u017e\u0161ou pevnos\u0165ou, ktor\u00e1 bude sp\u013a\u0148a\u0165 po\u017eiadavky projektu. Nie v\u017edy plat\u00ed, \u017ee malty s vy\u0161\u0161ou pevnos\u0165ou v tlaku a vy\u0161\u0161\u00edm obsahom cementu funguj\u00fa v ter\u00e9ne lep\u0161ie; v skuto\u010dnosti je \u010dastej\u0161ie pravdou opak. V porovnan\u00ed so silnej\u0161\u00edmi maltami sa malty s ni\u017e\u0161ou pevnos\u0165ou v tlaku zvy\u010dajne \u013eah\u0161ie odstra\u0148uj\u00fa z l\u00edca steny. Okrem toho s\u00fa malty s ni\u017e\u0161ou pevnos\u0165ou lep\u0161ie spracovate\u013en\u00e9, \u010do m\u00e1 tendenciu zlep\u0161ova\u0165 kvalitu v\u00fdstavby. Majte na pam\u00e4ti, \u017ee niektor\u00e9 malty nemusia by\u0165 v ur\u010dit\u00fdch situ\u00e1ci\u00e1ch povolen\u00e9 na pou\u017eitie z d\u00f4vodu stavebn\u00fdch predpisov. TEK 09-01A, Malty na murovanie bet\u00f3nov\u00fdch stien (ref. 4) obsahuje podrobnej\u0161ie inform\u00e1cie o malt\u00e1ch na murovanie.<\/p>\n<h2>Postup \u010distenia bet\u00f3nov\u00fdch stien. \u010cistenie po\u010das v\u00fdstavby<\/h2>\n<p>Pou\u017eit\u00edm vhodn\u00fdch postupov navrhovania, v\u00fdstavby a \u00fadr\u017eby mo\u017eno pred\u00eds\u0165 mnoh\u00fdm \u0161kvrn\u00e1m alebo ich v\u00fdskyt obmedzi\u0165. Mno\u017estvo \u010distenia potrebn\u00e9ho pre \u010derstvo postaven\u00fa stenu m\u00f4\u017eu v\u00fdrazne ovplyvni\u0165 stavebn\u00e9 met\u00f3dy. Napr\u00edklad pou\u017eitie spr\u00e1vnych techn\u00edk \u0161k\u00e1rovania m\u00f4\u017ee pom\u00f4c\u0165 vyhn\u00fa\u0165 sa vyf\u00faknutiu \u0161k\u00e1rovacej hmoty a s t\u00fdm s\u00favisiacemu \u010disteniu. Po dokon\u010den\u00ed stavby je mo\u017en\u00e9 pou\u017ei\u0165 menej n\u00e1siln\u00e9 techniky \u010distenia, ak sa murivo udr\u017eiava \u010do najsuch\u0161ie a naj\u010distej\u0161ie.<\/p>\n<p>Kontrola v\u00fdkvetov, \u0161kv\u0155n od malty a \u0161k\u00e1rovacej malty a v\u00fdkvetov je s\u00fa\u010das\u0165ou \u010distenia odhalen\u00e9ho bet\u00f3nov\u00e9ho muriva po\u010das v\u00fdstavby. V dokumente Kontrola a odstra\u0148ovanie v\u00fdkvetov, TEK 08-03A (ref. 1), sa uv\u00e1dzaj\u00fa komplexn\u00e9 podrobnosti o stavebn\u00fdch met\u00f3dach, ktor\u00e9 zni\u017euj\u00fa v\u00fdskyt v\u00fdkvetov. Odpor\u00fa\u010dania na zn\u00ed\u017eenie \u0161kv\u0155n z malty a malty po\u010das v\u00fdstavby zah\u0155\u0148aj\u00fa nasleduj\u00face odpor\u00fa\u010dania (ref. 3, 6):<\/p>\n<ul>\n<li>Hrana hladidla by sa mala pou\u017ei\u0165 na odrezanie malty, ktor\u00e1 bola vytla\u010den\u00e1 z maltov\u00fdch \u0161k\u00e1r po\u010das ukladania jednotiek. Dbajte na to, aby malta nepadala na povrch steny a aby sa pri tom nerozmaz\u00e1vala.<\/li>\n<li>Po prvom stuhnut\u00ed malty by sa mala odstr\u00e1ni\u0165, ak dopadne na bet\u00f3nov\u00fa murovaciu jednotku alebo ju rozma\u017ee. Pred postaven\u00edm le\u0161enia je najlep\u0161ie steny oreza\u0165 a o\u010disti\u0165.<\/li>\n<li>Najm\u00e4 pri delen\u00fdch murovac\u00edch jednotk\u00e1ch po\u010dkajte, k\u00fdm malta stvrdne na odtla\u010dok palca, a a\u017e potom odre\u017ete maltov\u00e9 zna\u010dky. \u0160k\u00e1ry by sa tie\u017e nemali vyspravova\u0165, k\u00fdm nie je odtla\u010dok prsta tvrd\u00fd.<\/li>\n<li>Po zaschnut\u00ed mo\u017eno \u00falomky malty, ktor\u00e9 sa prilepia na odkryt\u00e9 plochy jednotiek, zo\u0161kraba\u0165 mur\u00e1rskou ly\u017eicou alebo dl\u00e1tom. Na odstr\u00e1nenie zvy\u0161kov malty mo\u017eno \u010falej pou\u017ei\u0165 pevn\u00fa vl\u00e1knit\u00fa alebo \u0161tetcov\u00fa kefu.<\/li>\n<li>Z le\u0161enia by sa mala ob\u010das odstr\u00e1ni\u0165 prebyto\u010dn\u00e1 malta.<\/li>\n<li>Rozliata malta by sa mala ihne\u010f odstr\u00e1ni\u0165 kefou a umyt\u00edm.<\/li>\n<li>Rozprestretie plastov\u00fdch f\u00f3li\u00ed v d\u013a\u017eke 3 a\u017e 4 stopy (914 a\u017e 1 219 mm) na zemi ved\u013ea steny a 2 a\u017e 3 stopy (609 a\u017e 914 mm) po l\u00edci steny ochr\u00e1ni z\u00e1klad\u0148u steny pred striekaj\u00facim blatom a kvapkami malty a \u0161k\u00e1rovacej hmoty.<\/li>\n<li>Okrem t\u00fdchto n\u00e1vrhov by sa \u010derstvo postaven\u00e9 murivo malo chr\u00e1ni\u0165 pred ak\u00fdmiko\u013evek postriekaniami alebo in\u00fdmi \u0161kvrnami sp\u00f4soben\u00fdmi bl\u00edzkymi stavebn\u00fdmi \u010dinnos\u0165ami. Napr\u00edklad, ke\u010f sa v bl\u00edzkosti vylieva bet\u00f3n a strieka sa vytvrdzovacia chemik\u00e1lia, na murivo by sa mal polo\u017ei\u0165 plast.<\/li>\n<\/ul>\n<h2>Postup \u010distenia bet\u00f3nov\u00fdch stien. PL\u00c1N POSTUPU \u010cISTENIA<\/h2>\n<p>V z\u00e1vislosti od druhu zne\u010distenia a zam\u00fd\u0161\u013ean\u00e9ho v\u00fdsledku by sa mal starostlivo zv\u00e1\u017ei\u0165 \u010distiaci roztok a postup. Na spr\u00e1vne vy\u010distenie steny by sa mala pou\u017ei\u0165 \u010do najmenej n\u00e1siln\u00e1 technika \u010distenia. Pred \u010disten\u00edm sa uistite, \u017ee maltov\u00e9 \u0161k\u00e1ry vyschli, aby ste zabr\u00e1nili po\u0161kodeniu \u010distiacim procesom.<\/p>\n<p>Techniky \u010distenia m\u00f4\u017eu zmeni\u0165 vzh\u013ead dokon\u010den\u00e9ho muriva; zvy\u010dajne sa z povrchu jednotiek odstr\u00e1ni aspo\u0148 \u010das\u0165 cementovej pasty. V d\u00f4sledku toho je vidie\u0165 viac kameniva, \u010do m\u00f4\u017ee zmeni\u0165 odtie\u0148. Vo v\u0161eobecnosti plat\u00ed, \u017ee \u010d\u00edm agres\u00edvnej\u0161ia je technika \u010distenia, t\u00fdm viac pasty sa odstr\u00e1ni a t\u00fdm je pravdepodobnej\u0161ie, \u017ee sa zmen\u00ed vzh\u013ead m\u00faru. Napr\u00edklad pieskovanie pravdepodobne zmen\u00ed vzh\u013ead viac ako ru\u010dn\u00e9 \u010distenie vodou a mydlom. Okrem toho majte na pam\u00e4ti, \u017ee v z\u00e1vislosti od konkr\u00e9tnych vykonan\u00fdch krokov m\u00f4\u017ee t\u00e1 ist\u00e1 technika \u010distenia prinies\u0165 r\u00f4zne v\u00fdsledky. V\u00fdsledky pieskovania pod ni\u017e\u0161\u00edm tlakom sa bud\u00fa l\u00ed\u0161i\u0165 od v\u00fdsledkov pieskovania pod vy\u0161\u0161\u00edm tlakom. Op\u00e4\u0165 by sa mala zvoli\u0165 najmenej drsn\u00e1 technika \u010distenia, ktor\u00e1 bude vyhovuj\u00faca.<\/p>\n<p>Na vyhodnotenie \u00fa\u010dinnosti \u010distiacich chemik\u00e1li\u00ed a postupov pre typ odstra\u0148ovan\u00e9ho zne\u010distenia, ich potenci\u00e1lneho vplyvu na kone\u010dn\u00fd vzh\u013ead muriva a dohodnutej \u00farovne \u010distoty by sa mali najprv aplikova\u0165 na vzorke panelu alebo diskr\u00e9tnej oblasti. Na pos\u00fadenie v\u00fdsledkov po vy\u010disten\u00ed by sa mal panel so vzorkou prezera\u0165 pri rozpt\u00fdlenom osvetlen\u00ed zo vzdialenosti 20 st\u00f4p (6 096 mm).<\/p>\n<p>Na zachovanie jednotn\u00e9ho vzh\u013eadu je nevyhnutn\u00e9, aby sa cel\u00e9 murivo \u010distilo rovnakou technikou bez oh\u013eadu na zvolen\u00fa met\u00f3du \u010distenia. To zah\u0155\u0148a r\u00fdchlos\u0165 riedenia, met\u00f3du \u010distenia kefou\/\u0161kraban\u00edm, d\u013a\u017eku p\u00f4sobenia, opakovan\u00e9 nan\u00e1\u0161anie, postup oplachovania at\u010f. V podobnom duchu je d\u00f4le\u017eit\u00e9 vyhn\u00fa\u0165 sa \u010disteniu oblast\u00ed, ktor\u00e9 sa prekr\u00fdvaj\u00fa, preto\u017ee by to mohlo ma\u0165 za n\u00e1sledok aj nerovnomern\u00fd vzh\u013ead.<\/p>\n<p>Medzi materi\u00e1ly, ktor\u00e9 by mohli by\u0165 po\u0161koden\u00e9 kontaktom s ur\u010dit\u00fdmi odstra\u0148ova\u010dmi \u0161kv\u0155n alebo fyzik\u00e1lnymi technikami \u010distenia, patria sklo, kov, drevo, architektonick\u00fd bet\u00f3n alebo bet\u00f3nov\u00e9 murivo a v\u0161etky ter\u00e9nne \u00fapravy, ktor\u00e9 sa nach\u00e1dzaj\u00fa v bl\u00edzkosti oblasti, ktor\u00fa je potrebn\u00e9 vy\u010disti\u0165. Mali by sa dodr\u017eiava\u0165 odpor\u00fa\u010dania v\u00fdrobcu \u010distiaceho prostriedku, preto\u017ee postup \u010distenia ovplyv\u0148uje oblas\u0165, ktor\u00e1 potrebuje ochranu, a stupe\u0148 ochrany.<\/p>\n<p>Aby sa zn\u00ed\u017eila dodato\u010dn\u00e1 absorpcia vlhkosti alebo zne\u010distenie, mal by sa hne\u010f, ako to podmienky dovolia, po vy\u010disten\u00ed steny nanies\u0165 povrchov\u00fd vodoodpudiv\u00fd prostriedok.<\/p>\n<h2>Postup \u010distenia bet\u00f3nov\u00fdch stien. Met\u00f3dy \u010distenia<\/h2>\n<p>Techniky \u010distenia bet\u00f3nov\u00e9ho muriva mo\u017eno v\u0161eobecne rozdeli\u0165 do \u0161tyroch skup\u00edn: chemick\u00e9, abraz\u00edvne, vodn\u00e9 a ru\u010dn\u00e9 \u010distenie (ref. 2). Na ur\u010denie vplyvu \u010distenia by sa mala vy\u010disti\u0165 vzorka panelu alebo nepov\u0161imnut\u00e1 oblas\u0165 budovy pomocou akejko\u013evek techniky.<\/p>\n<h2>\u010cistenie rukami<\/h2>\n<p>Po\u010das v\u00fdstavby sa na \u010distenie pou\u017e\u00edvaj\u00fa z\u00e1kladn\u00e9 ru\u010dn\u00e9 n\u00e1stroje, ako je hladidlo, dl\u00e1to, vl\u00e1knit\u00e1 kefa alebo kefa s tuh\u00fdmi \u0161tetinami, br\u00fasny blok alebo rozbit\u00fd kus muriva. Ke\u010f\u017ee kefy s oce\u013eov\u00fdmi vl\u00e1knami m\u00f4\u017eu zanecha\u0165 kovov\u00e9 \u010dastice, ktor\u00e9 by mohli zhrdzavie\u0165 a odfarbi\u0165 kamenn\u00e9 murivo, nemali by sa pou\u017e\u00edva\u0165.<\/p>\n<h2>\u010cistenie vodou<\/h2>\n<p>Drhnutie vodou so sapon\u00e1tom, nam\u00e1\u010danie vo vode, \u010distenie parou alebo tlakov\u00e9 um\u00fdvanie s\u00fa pr\u00edklady \u010distenia vodou. Pri pou\u017eit\u00ed techn\u00edk \u010distenia vodou by sa malo pou\u017ei\u0165 \u010do najmen\u0161ie mno\u017estvo vody potrebn\u00e9 na d\u00f4kladn\u00e9 vy\u010distenie steny, preto\u017ee ak\u00e1ko\u013evek voda, ktor\u00e1 prenikne do steny, by mohla podpori\u0165 vznik v\u00fdkvetov. \u010eal\u0161ie inform\u00e1cie n\u00e1jdete v \u010dasti Kontrola a odstra\u0148ovanie eflorescencie, TEK 08-03A (ref. 1).<\/p>\n<p>Drhnutie nenatret\u00fdch stien vodou s mal\u00fdm mno\u017estvom \u010distiaceho prostriedku je zvy\u010dajne dostato\u010dn\u00e9. T\u00e1to technika \u010distenia nie je agres\u00edvna a zvy\u010dajne nezmen\u00ed vzh\u013ead kamenn\u00e9ho muriva. Vzh\u013eadom na potrebn\u00fa pr\u00e1cnos\u0165 v\u0161ak nemus\u00ed by\u0165 ekonomicky v\u00fdhodn\u00e1 pre rozsiahle regi\u00f3ny.<\/p>\n<p>Najprv pou\u017eite such\u00fa kefu na odstr\u00e1nenie pr\u00edpadnej hliny alebo ne\u010dist\u00f4t. Ke\u010f\u017ee ak\u00e9ko\u013evek kovov\u00e9 \u010diasto\u010dky, ktor\u00e9 zostan\u00fa na povrchu kame\u0148a, by mohli sp\u00f4sobi\u0165 jeho kor\u00f3ziu a zafarbenie, nemali by sa pou\u017e\u00edva\u0165 kefy s oce\u013eov\u00fdm dr\u00f4tom. Lep\u0161ie je pou\u017e\u00edva\u0165 nekovov\u00e9 kefy, ako s\u00fa nylonov\u00e9 alebo z tuh\u00fdch vl\u00e1kien. Usadeniny ne\u010dist\u00f4t sa po namo\u010den\u00ed do vody zv\u00e4\u010d\u0161ia, \u010d\u00edm sa oslab\u00ed ich pri\u013enutie k murivu pod nimi a voda ich m\u00f4\u017ee zmy\u0165. Ak je hlavn\u00fdm probl\u00e9mom v\u00fdkvety, tento postup op\u00e4\u0165 nemus\u00ed by\u0165 vhodn\u00fd.<\/p>\n<p>V chladnom po\u010das\u00ed alebo na mastn\u00fdch povrchoch je u\u017eito\u010dn\u00e1 ohriata voda. Tepl\u00e1 voda by sa v\u0161ak nemala pou\u017e\u00edva\u0165 pri alkalick\u00fdch l\u00e1tkach s teplotou vy\u0161\u0161ou ako 71 \u00b0C (160 \u00b0C). Pou\u017e\u00edvanie hor\u00facej vody s kysl\u00fdmi \u010distiacimi prostriedkami nem\u00e1 \u017eiadne vidite\u013en\u00e9 v\u00fdhody (ref. 2).<\/p>\n<p>Aby sa predi\u0161lo pou\u017e\u00edvaniu agres\u00edvnych chemik\u00e1li\u00ed, na projekty obnovy muriva sa \u010dasto vol\u00ed zariadenie na tlakov\u00e9 um\u00fdvanie. M\u00f4\u017ee by\u0165 \u00fa\u010dinn\u00e9 na \u010distenie povrchu. Je potrebn\u00fd minim\u00e1lny tlak vody, aby sa zabr\u00e1nilo vtl\u00e1\u010daniu vody do steny, \u010do by mohlo ma\u0165 za n\u00e1sledok vznik v\u00fdkvetov. Majte na pam\u00e4ti, \u017ee vysok\u00fd tlak by mohol zmeni\u0165 kone\u010dn\u00fd vzh\u013ead alebo po\u0161kodi\u0165 kamen\u00e1rske pr\u00e1ce. Najd\u00f4slednej\u0161ie v\u00fdsledky sa dosiahnu pou\u017eit\u00edm kon\u0161tantn\u00e9ho tlaku a udr\u017eiavan\u00edm vopred ur\u010denej vzdialenosti od steny. Pri pou\u017e\u00edvan\u00ed vysokotlakov\u00e9ho \u010distenia sa odpor\u00fa\u010da:<\/p>\n<p>Tlak sa mus\u00ed udr\u017eiava\u0165 v rozmedz\u00ed od 400 do 600 psi (2,76 a\u017e 4,14 MPa); hrot pr\u00edruby mus\u00ed by\u0165 sk\u00f4r \u0161irok\u00fd ako \u0161picat\u00fd; hrot sa mus\u00ed udr\u017eiava\u0165 vo vzdialenosti najmenej 12 palcov (305 mm) od povrchu muriva; a striekanie mus\u00ed smerova\u0165 pod uhlom 45 stup\u0148ov k stene, nie kolmo na \u0148u. Drhnutie sa m\u00f4\u017ee kombinova\u0165 aj s tlakov\u00fdm um\u00fdvan\u00edm. Pri aplik\u00e1cii kefou sa vytv\u00e1ra mierne mie\u0161anie, ktor\u00e9 zlep\u0161uje celkov\u00e9 v\u00fdsledky \u010distenia a umo\u017e\u0148uje minim\u00e1lne oplachovanie tlakom.<\/p>\n<p>Tlakov\u00e9 um\u00fdvanie v podstate nahradilo parn\u00e9 \u010distenie. \u00da\u010dinok zm\u00e4k\u010denia a uvo\u013enenia \u010dast\u00edc oleja a ne\u010dist\u00f4t sa v\u0161ak zvy\u0161uje pridan\u00edm tepla do vody, \u010do u\u013eah\u010duje ich opl\u00e1chnutie. V z\u00e1vislosti od pr\u00edstroja sa para zvy\u010dajne vyr\u00e1ba v bleskovom kotle a smeruje proti stene pomocou ty\u010de pri tlaku od 10 do 80 psi (69 a\u017e 552 kPa). \u010cistenie parou je pomal\u0161ie ako tlakov\u00e9 um\u00fdvanie, ale je menej razantn\u00e9.<\/p>\n<h2>\u010cistenie pomocou chemik\u00e1li\u00ed<\/h2>\n<p>Existuje mno\u017estvo patentovan\u00fdch \u010distiacich roztokov na bet\u00f3nov\u00e9 murivo; o navrhnut\u00fdch vhodn\u00fdch v\u00fdrobkoch sa informujte u v\u00fdrobcu bet\u00f3nov\u00e9ho muriva. Pri pou\u017e\u00edvan\u00ed vopred namie\u0161an\u00fdch chemik\u00e1li\u00ed sa vyhnete mnoh\u00fdm mo\u017en\u00fdm probl\u00e9mom vr\u00e1tane t\u00fdch, ktor\u00e9 s\u00favisia s kombin\u00e1ciou reakt\u00edvnych zl\u00fa\u010den\u00edn. Okrem toho sa kombinuj\u00fa v spr\u00e1vnych mno\u017estv\u00e1ch na bezpe\u010dn\u00e9 pou\u017eitie na murivo. Na ochranu pou\u017e\u00edvate\u013ea a muriva, ako aj na zabr\u00e1nenie pr\u00edpadn\u00e9mu nebezpe\u010dn\u00e9mu v\u00fdtoku je potrebn\u00e9 pr\u00edsne dodr\u017eiava\u0165 pokyny v\u00fdrobcu.<\/p>\n<p>Chemick\u00e9 povrchovo akt\u00edvne l\u00e1tky napom\u00e1haj\u00fa rozp\u00fa\u0161\u0165aniu ne\u010dist\u00f4t, aby sa mohli odstr\u00e1ni\u0165 po\u010das posledn\u00e9ho oplachovania pri pou\u017eit\u00ed met\u00f3d um\u00fdvania vodou. Povrchy, ktor\u00e9 sa maj\u00fa \u010disti\u0165, sa musia pred pou\u017eit\u00edm chemick\u00fdch \u010distiacich prostriedkov d\u00f4kladne vopred navlh\u010di\u0165 n\u00edzkym tlakom vody (maxim\u00e1lne 30 a\u017e 50 psi, 207 a\u017e 345 kPa). \u010cistiace prostriedky sa musia riedi\u0165 pod\u013ea pokynov v\u00fdrobcu a aplika\u010dn\u00fd tlak by sa mal udr\u017eiava\u0165 na minim\u00e1lnej \u00farovni.<\/p>\n<p>Po aplik\u00e1cii chemick\u00e9ho \u010distiaceho prostriedku by sa stena mala d\u00f4kladne opl\u00e1chnu\u0165 \u010derstvou vodou, najlep\u0161ie pod miernym tlakom, ale v pr\u00edpade potreby aj pod vysok\u00fdm tlakom, pri\u010dom sa pou\u017eij\u00fa bezpe\u010dnostn\u00e9 opatrenia uveden\u00e9 v \u010dasti \u010cistenie vodou.<\/p>\n<p>Hoci je chemick\u00e9 \u010distenie \u010dasto \u00faspe\u0161nej\u0161ie a hospod\u00e1rnej\u0161ie ako tlakov\u00e9 um\u00fdvanie, m\u00f4\u017ee \u00eds\u0165 o silnej\u0161iu techniku. Hoci tento proces m\u00f4\u017ee zmeni\u0165 kone\u010dn\u00fd vzh\u013ead steny, pri spr\u00e1vnom postupe s\u00fa \u00fa\u010dinky jednotn\u00e9 na celej stene. Na aplik\u00e1ciu chemick\u00fdch \u010distiacich roztokov pou\u017eite kefy s m\u00e4kk\u00fdmi vl\u00e1knami alebo n\u00edzkotlakov\u00fd rozpra\u0161ova\u010d (menej ako 50 psi, 345 kPa).<\/p>\n<p>Bet\u00f3nov\u00e9 murivo mo\u017eno \u010disti\u0165 chemick\u00fdmi \u010distiacimi roztokmi bez toho, aby do\u0161lo k po\u0161kodeniu povrchu; nepou\u017e\u00edvajte nerieden\u00e9 alebo neo\u010disten\u00e9 kyseliny. Preto\u017ee kyseliny nar\u00fa\u0161aj\u00fa cementov\u00fa matricu na povrchu muriva a m\u00f4\u017eu po\u0161kodi\u0165 ak\u00e9ko\u013evek vlastn\u00e9 vodoodpudiv\u00e9 l\u00e1tky na povrchu, aj zrieden\u00e9 kyseliny by sa mali pou\u017e\u00edva\u0165 opatrne a a\u017e po \u00faplnom predumyt\u00ed m\u00faru. T\u00fdm sa zmen\u00ed farba a \u0161trukt\u00fara muriva, preto\u017ee povrch sa stane p\u00f3rovitej\u0161\u00edm a odhal\u00ed sa viac kameniva. Kyseliny m\u00f4\u017eu tie\u017e zn\u00ed\u017ei\u0165 vodoodpudivos\u0165 na povrchu muriva, ktor\u00e9 m\u00e1 integrovan\u00fd vodoodpudiv\u00fd prostriedok. Pou\u017eitie kysel\u00edn pod tlakom sa nikdy neodpor\u00fa\u010da. Vo v\u0161eobecnosti by sa mal \u010distiaci prostriedok pova\u017eova\u0165 za kysl\u00fd, ak je jeho pH ni\u017e\u0161ie ako 4 alebo 5. Okrem toho je potrebn\u00e9 extr\u00e9mne alkalick\u00e9 v\u00fdrobky d\u00f4kladne opl\u00e1chnu\u0165 a neutralizova\u0165 kysl\u00fdm pr\u00edpravkom na do\u010distenie; ak s\u00fa e\u0161te pr\u00edtomn\u00e9 z\u00e1sady, m\u00f4\u017ee by\u0165 ne\u017eiaducim d\u00f4sledkom v\u00fdkvety.<\/p>\n<h2>\u010cistenie pomocou kvapaliny BETOFF-B<\/h2>\n<p>Tento inovat\u00edvny pr\u00edpravok \u013eahko vy\u010dist\u00ed ak\u00fako\u013evek bet\u00f3nov\u00fa stenu alebo bet\u00f3nov\u00fd povrch. Sta\u010d\u00ed ho nanies\u0165, rozotrie\u0165 pomocou kefy s m\u00e4kk\u00fdmi \u0161tetinami a potom zmy\u0165 v\u0161etky ne\u010distoty vodou. Je to tak\u00e9 jednoduch\u00e9 a tak\u00e9 \u00fa\u010dinn\u00e9!<\/p>\n<h2>\u010cistenie pomocou abraz\u00edva<\/h2>\n<p>Najextr\u00e9mnej\u0161ou technikou \u010distenia je \u010distenie abraz\u00edvom, ktor\u00e9ho cie\u013eom je odstr\u00e1ni\u0165 vonkaj\u0161iu <a href=\"http:\/\/betolix.es\/\">vrstvu<\/a> muriva, v ktorej sa <a href=\"http:\/\/betolix.pl\/\">\u0161kvrna<\/a> nach\u00e1dza, a nie zmy\u0165 povrchov\u00e9 ne\u010distoty. Z <a href=\"http:\/\/betolix.it\/\">tohto<\/a> d\u00f4vodu by ho nemali vyu\u017e\u00edva\u0165 , br\u00fasen\u00e9 jednotky, ktor\u00fdch povrch je le\u0161ten\u00fd a hladk\u00fd. Pojem \u201eabraz\u00edvne \u010distenie\u201c sa zvy\u010dajne vz\u0165ahuje na pieskovanie, niekedy zn\u00e1me ako \u201epieskovanie\u201c, hoci zah\u0155\u0148a <a href=\"http:\/\/betoff.dk\/\">techniky<\/a> vr\u00e1tane br\u00fasnych kot\u00fa\u010dov, br\u00fasnych kot\u00fa\u010dov a br\u00fasnych p\u00e1sov. Ke\u010f\u017ee kremi\u010dit\u00fd piesok sa pova\u017euje za dr\u00e1\u017ediv\u00fd, jeho <a href=\"http:\/\/betoff.nl\/\">pou\u017e\u00edvanie<\/a> je na niektor\u00fdch miestach <a href=\"http:\/\/betoff.dk\/\">obmedzen\u00e9<\/a>; napriek tomu existuje mno\u017estvo alternat\u00edvnych pieskovac\u00edch prostriedkov, ktor\u00e9 mo\u017eno pou\u017ei\u0165.<\/p>\n<p>Pieskovanie sa m\u00f4\u017ee vykon\u00e1va\u0165 v chladnom po\u010das\u00ed, preto\u017ee ide o such\u00fd postup, ktor\u00fd nepodporuje v\u00fdkvety. Pri spr\u00e1vnom pr\u00edstupe prin\u00e1\u0161a \u010distiaci postup konzistentn\u00fd v\u00fdsledok na celej stene, rovnako ako tlakov\u00e9 <a href=\"http:\/\/betoff.de\/\">chemick\u00e9<\/a> \u010distenie.<\/p>\n<p>Pri <a href=\"http:\/\/betoff.fi\/\">pou\u017e\u00edvan\u00ed<\/a> abraz\u00edvnych met\u00f3d \u010distenia je potrebn\u00e1 opatrnos\u0165, preto\u017ee nadmern\u00e9 pou\u017e\u00edvanie m\u00f4\u017ee v\u00fdrazne zmeni\u0165 odolnos\u0165, <a href=\"http:\/\/betoff.eu\/en\">vzh\u013ead<\/a>, a vodotesnos\u0165 muriva. Odhalen\u00edm kameniva alebo zdrsnen\u00edm povrchu m\u00f4\u017ee pieskovanie zmeni\u0165 vzh\u013ead muriva. V pr\u00edpade delen\u00fdch tv\u00e1rnic je to men\u0161\u00ed probl\u00e9m. Ke\u010f\u017ee pieskovanie zvy\u0161uje p\u00f3rovitos\u0165 povrchu, m\u00f4\u017ee <a href=\"http:\/\/betoff.se\/\">niekedy<\/a> ur\u00fdchli\u0165 jeho degrad\u00e1ciu. Pri zva\u017eovan\u00ed pieskovania je nevyhnutn\u00e9 vykona\u0165 predbe\u017en\u00e9 testovanie pomocou vzorov\u00e9ho panelu.<\/p>\n<h2>M\u00e4k\u0161ie abraz\u00edva<\/h2>\n<p>Na zn\u00ed\u017eenie mo\u017en\u00e9ho po\u0161kodenia sa m\u00f4\u017eu pou\u017ei\u0165 m\u00e4k\u0161ie abraz\u00edva, ako s\u00fa rozdrven\u00e9 kukuri\u010dn\u00e9 \u0161upky, \u0161krupiny vla\u0161sk\u00fdch orechov alebo sklenen\u00e9 \u010di plastov\u00e9 gu\u013e\u00f4\u010dky. T\u00e1to met\u00f3da, be\u017ene ozna\u010dovan\u00e1 ako mikropeeling, je pomal\u0161ia, drah\u0161ia a zvy\u010dajne nie je vhodn\u00e1 na rozsiahle projekty \u010distenia.<\/p>\n<p>Vy\u017eaduje sa nosenie ochrann\u00e9ho odevu a v\u00fdstroja, napr\u00edklad autorizovan\u00e9ho respir\u00e1tora pod kuklou. Do pr\u00fadu vzduchu so zrnami sa na tryske prid\u00e1va voda, aby sa odstr\u00e1nila v\u00e4\u010d\u0161ina prachu, ktor\u00fd vznik\u00e1 pri suchom pieskovan\u00ed. Vy\u017eaduje sa rovnak\u00fd ochrann\u00fd v\u00fdstroj a oble\u010denie ako pri suchom procese, preto\u017ee men\u0161ie \u010dastice st\u00e1le predstavuj\u00fa zdravotn\u00e9 riziko. Opl\u00e1chnutie vy\u010disten\u00e9ho povrchu po pieskovan\u00ed je \u010fal\u0161\u00edm krokom, ktor\u00fd si vy\u017eaduje mokr\u00e1 met\u00f3da.<\/p>\n<p>Ak\u00e9ko\u013evek povrchov\u00e9 n\u00e1tery odoln\u00e9 vo\u010di vode, ktor\u00e9 boli predt\u00fdm aplikovan\u00e9, sa musia po abraz\u00edvnom \u010disten\u00ed nanovo nanies\u0165, preto\u017ee pieskovanie ich odstra\u0148uje.<\/p>\n<h2>KONE\u010cN\u00c9 V\u00ddSLEDKY<\/h2>\n<p>Bet\u00f3nov\u00e9 murovacie moduly sa dod\u00e1vaj\u00fa v r\u00f4znych povrchov\u00fdch \u00faprav\u00e1ch, napr\u00edklad glazovan\u00e9, \u0161tiepan\u00e9 a br\u00fasen\u00e9. Zvy\u010dajne pr\u00ed\u0165a\u017eliv\u00fd vzh\u013ead bet\u00f3nov\u00fdch murovan\u00fdch stavieb m\u00f4\u017eu po rokoch p\u00f4sobenia zne\u010disti\u0165 ne\u010distoty z ovzdu\u0161ia a z procesu v\u00fdstavby, napr\u00edklad \u0161muhy od malty. Medzi osved\u010den\u00e9 techniky \u010distenia patr\u00ed abraz\u00edvne tryskanie, voda, chemick\u00e9 o\u0161etrenie a ru\u010dn\u00e9 \u010distenie. Niektor\u00ed v\u00fdrobcovia CMU pon\u00fakaj\u00fa poradenstvo v oblasti \u010distenia; v in\u00fdch situ\u00e1ci\u00e1ch m\u00f4\u017ee kvalifikovan\u00fd odborn\u00edk poskytn\u00fa\u0165 n\u00e1vod na naj\u00fa\u010dinnej\u0161ie techniky \u010distenia. \u010cistiace prostriedky a met\u00f3dy sa testuj\u00fa v ter\u00e9ne, aby pomohli zaru\u010di\u0165 pl\u00e1novan\u00e9 v\u00fdsledky.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-43458 size-medium\" src=\"https:\/\/betoff.eu\/wp-content\/uploads\/2024\/11\/BETOFF-B-5L-221x300.png\" alt=\"Postup \u010distenia bet\u00f3nov\u00fdch stien\" width=\"221\" height=\"300\" srcset=\"https:\/\/betoff.eu\/wp-content\/uploads\/2024\/11\/BETOFF-B-5L-221x300.png 221w, https:\/\/betoff.eu\/wp-content\/uploads\/2024\/11\/BETOFF-B-5L-753x1024.png 753w, https:\/\/betoff.eu\/wp-content\/uploads\/2024\/11\/BETOFF-B-5L-768x1045.png 768w, https:\/\/betoff.eu\/wp-content\/uploads\/2024\/11\/BETOFF-B-5L-1129x1536.png 1129w, https:\/\/betoff.eu\/wp-content\/uploads\/2024\/11\/BETOFF-B-5L-1506x2048.png 1506w, https:\/\/betoff.eu\/wp-content\/uploads\/2024\/11\/BETOFF-B-5L-510x694.png 510w\" sizes=\"auto, (max-width: 221px) 100vw, 221px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Postup \u010distenia bet\u00f3nov\u00fdch stien. Popri vlastnostiach, ako je pevnos\u0165 kon\u0161trukcie, dlh\u00e1 \u017eivotnos\u0165, po\u017eiarna odolnos\u0165, akustick\u00e9 vlastnosti a nen\u00e1ro\u010dn\u00e1 \u00fadr\u017eba, s\u00fa bet\u00f3nov\u00e9 murovan\u00e9 budovy neuverite\u013ene kr\u00e1sne. Kr\u00e1su bet\u00f3nov\u00e9ho muriva mo\u017eno zachova\u0165 spr\u00e1vnym \u010disten\u00edm po\u010das v\u00fdstavby aj po\u010das \u017eivotnosti budovy. Dobre navrhnut\u00e1 a postaven\u00e1 murovan\u00e1 stena si vy\u017eaduje len ve\u013emi mal\u00fa \u00fadr\u017ebu, hoci ne\u010distoty m\u00f4\u017eu ubra\u0165 na [&#8230;]\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[25],"tags":[],"class_list":["post-43978","post","type-post","status-publish","format-standard","hentry","category-okategoriserad"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Postup \u010distenia bet\u00f3nov\u00fdch stien - BETOFF-Produkty pre svet bet\u00f3nu aj mimo neho!<\/title>\n<meta name=\"description\" content=\"Postup \u010distenia bet\u00f3nov\u00fdch stien.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/betoff.eu\/sk\/postup-cistenia-betonovych-stien\/\" \/>\n<meta property=\"og:locale\" content=\"sk_SK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Postup \u010distenia bet\u00f3nov\u00fdch stien - 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