{"id":404,"date":"2022-01-18T10:40:50","date_gmt":"2022-01-18T09:40:50","guid":{"rendered":"https:\/\/czstavba.cz\/?p=404"},"modified":"2022-01-18T10:40:52","modified_gmt":"2022-01-18T09:40:52","slug":"strikana-sterka-na-betonove-prefabrikaty-pracovni-postup","status":"publish","type":"post","link":"https:\/\/czstavba.cz\/?p=404","title":{"rendered":"St\u0159\u00edkan\u00e1 st\u011brka na betonov\u00e9 prefabrik\u00e1ty (pracovn\u00ed postup)"},"content":{"rendered":"\n

Na povrchu betonov\u00fdch prefabrikovan\u00fdch d\u00edlc\u016f mohou b\u011bhem v\u00fdroby vznikat rozli\u010dn\u00e1 jemn\u00e1 nebo hlubok\u00e1 hn\u00edzda, kr\u00e1ter\u00edky nebo d\u00edrky. P\u0159ed celoplo\u0161n\u00fdm nanesen\u00edm st\u011brky je nutno v\u011bt\u0161\u00ed nerovnosti na podkladu opravit.
K tomuto \u00fa\u010delu lze tak\u00e9 pou\u017e\u00edt st\u0159\u00edkanou st\u011brku, je v\u0161ak vhodn\u00e9 zpracov\u00e1vat ji ru\u010dn\u011b. P\u0159i nerovnostech hlub\u0161\u00edch ne\u017e 5 mm se doporu\u010duje do vrstvy st\u011brky zapracovat v\u00fdztu\u017enou s\u00ed\u0165ku. Po vyrovn\u00e1n\u00ed nerovnost\u00ed se nanese fin\u00e1ln\u00ed celoplo\u0161n\u00e1 vrstva st\u0159\u00edkan\u00e9 st\u011brky. U tohoto typu st\u011brky lze zhotovit hladk\u00fd povrch i p\u0159i siln\u011bj\u0161\u00ed vrstv\u011b bez pot\u0159eby nan\u00e9st fin\u00e1ln\u00ed vrstvu jemn\u00e9 st\u011brky.<\/p>\n\n\n\n

Info o materi\u00e1lu: B\u00edl\u00e1 pastovit\u00e1 st\u011brka p\u0159ipraven\u00e1 k okam\u017eit\u00e9mu pou\u017eit\u00ed v interi\u00e9ru pomoc\u00ed airless st\u0159\u00edkac\u00edho stroje, vysokop\u0159ilnav\u00e1, bez obsahu rozpou\u0161t\u011bdel a jin\u00fdch emis\u00ed, dif\u00fazn\u011b otev\u0159en\u00e1 a snadno se hlad\u00ed (i p\u0159i tlou\u0161\u0165ce vrstvy 5 mm.
Podklad mus\u00ed b\u00fdt such\u00fd, nezmrzl\u00fd, pevn\u00fd, soudr\u017en\u00fd, nosn\u00fd, tvarov\u011b st\u00e1l\u00fd, bez prachu, mastnoty, olej\u016f, antiadhezn\u00edch prost\u0159edk\u016f a jin\u00fdch ne\u010distot. Mus\u00ed vyhovovat po\u017eadavk\u016fm platn\u00fdch norem a zpracovatelsk\u00fdm na\u0159\u00edzen\u00edm\/p\u0159edpis\u016fm. Podklad se doporu\u010duje p\u0159ed nanesen\u00edm st\u0159\u00edkan\u00e9 st\u011brky penetrovat vhodn\u00fdm penetra\u010dn\u00edm n\u00e1t\u011brem.<\/p>\n\n\n\n

Penetraci se doporu\u010duje nan\u00e9st vhodn\u00fdm n\u00e1\u0159ad\u00edm. Nejlep\u0161\u00edho \u00fa\u010dinku je dosa\u017eeno p\u0159i pou\u017eit\u00ed \u0161t\u011btce. V z\u00e1vislosti na savosti podkladu lze penetraci z\u0159edit s vodou v pom\u011bru 1:4 (1 d\u00edl penetrace ke 4 d\u00edl\u016fm vody). Penetrace se nech\u00e1 vyschnout (p\u0159ibli\u017en\u011b 6 hod.).<\/p>\n\n\n\n

Co budeme pot\u0159ebovat<\/p>\n\n\n\n

St\u0159\u00edkan\u00e1 st\u011brka (St\u0159\u00edkan\u00e1 st\u011brka Durapid XL 90, spot\u0159eba: p\u0159ibli\u017en\u011b 1,75 kg\/m2, (na 1 mm tlou\u0161\u0165ky
vrstvy), pytel, 25 kg 37,02 \u20ac)<\/p>\n\n\n\n

Penetra\u010dn\u00ed n\u00e1t\u011br (Hloubkov\u00fd z\u00e1klad LF 14, spot\u0159eba: p\u0159ibli\u017en\u011b 0,15 a\u017e 0,5 l\/m2, (po sm\u00edch\u00e1n\u00ed, s vodou 1 : 4), kanystr 1; 2,5 a 10 l, 10 l 62,95 \u20ac)<\/p>\n\n\n\n

N\u00e1\u0159ad\u00ed (\u0161pachtle, mal\u00ed\u0159sk\u00e1 \u0161t\u011btka, \u0161t\u011btec, v\u00e1le\u010dek, ariless za\u0159\u00edzen\u00ed, ploch\u00e1 st\u011brka, plastov\u00e9 kbel\u00edk)<\/p>\n\n\n\n

Podklad mus\u00ed b\u00fdt such\u00fd, nezmrzl\u00fd, pevn\u00fd, soudr\u017en\u00fd, nosn\u00fd, tvarov\u011b st\u00e1l\u00fd, bez prachu, mastnoty, olej\u016f, antiadhezn\u00edch prost\u0159edk\u016f a jin\u00fdch ne\u010distot. Jemn\u00e9 trhliny a d\u00edrky se vypln\u00ed ru\u010dn\u011b st\u0159\u00edkanou st\u011brkou.<\/p>\n\n\n\n

St\u011brka se na p\u0159ipraven\u00fd podklad bez prachu nanese airless st\u0159\u00edkac\u00edm za\u0159\u00edzen\u00edm v Max. tlou\u0161\u0165ce 5 mm v jednom pracovn\u00edm kroku.<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

St\u011brka nanesen\u00e1 na podklad se uhlad\u00ed pomoc\u00ed ploch\u00e9 st\u011brky.<\/p>\n\n\n\n

Po vyhlazen\u00ed st\u011brky se m\u016f\u017ee p\u0159ebyte\u010dn\u00fd materi\u00e1l vr\u00e1tit do kbel\u00edku a op\u011btovn\u011b pou\u017e\u00edt. To zaji\u0161\u0165uje minim\u00e1ln\u00ed ztr\u00e1ty materi\u00e1lu.<\/p>\n\n\n\n

Tip: Po\u010det vrstev st\u011brky \u2013 podle typu podkladu a po\u017eadovan\u00e9 tlou\u0161\u0165ky vrstvy se doporu\u010duje jeden a\u017e dva n\u00e1st\u0159iky. Po zaschnut\u00ed (p\u0159ibli\u017en\u011b 48 hod.) lze povrch st\u011brky snadno p\u0159ebrousit, p\u0159\u00edp. n\u00e1st\u0159ik podle pot\u0159eby opakovat.<\/p>\n","protected":false},"excerpt":{"rendered":"

Na povrchu betonov\u00fdch prefabrikovan\u00fdch d\u00edlc\u016f mohou b\u011bhem v\u00fdroby vznikat rozli\u010dn\u00e1 jemn\u00e1 nebo hlubok\u00e1 hn\u00edzda, kr\u00e1ter\u00edky nebo d\u00edrky. P\u0159ed celoplo\u0161n\u00fdm nanesen\u00edm st\u011brky je nutno v\u011bt\u0161\u00ed nerovnosti na podkladu opravit.K tomuto \u00fa\u010delu lze tak\u00e9 pou\u017e\u00edt st\u0159\u00edkanou st\u011brku, je v\u0161ak vhodn\u00e9 zpracov\u00e1vat ji ru\u010dn\u011b. P\u0159i nerovnostech hlub\u0161\u00edch ne\u017e 5 mm se doporu\u010duje do vrstvy st\u011brky zapracovat v\u00fdztu\u017enou s\u00ed\u0165ku. […]<\/p>\n","protected":false},"author":2,"featured_media":405,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"tdm_status":"","tdm_grid_status":"","footnotes":""},"categories":[10],"tags":[],"class_list":["post-404","post","type-post","status-publish","format-standard","has-post-thumbnail","category-stavba"],"_links":{"self":[{"href":"https:\/\/czstavba.cz\/index.php?rest_route=\/wp\/v2\/posts\/404","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/czstavba.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/czstavba.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/czstavba.cz\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/czstavba.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=404"}],"version-history":[{"count":0,"href":"https:\/\/czstavba.cz\/index.php?rest_route=\/wp\/v2\/posts\/404\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/czstavba.cz\/index.php?rest_route=\/wp\/v2\/media\/405"}],"wp:attachment":[{"href":"https:\/\/czstavba.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=404"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/czstavba.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=404"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/czstavba.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=404"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}