[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.bizzone.cz\/jak-spravne-namichat-beton\/#Article","mainEntityOfPage":"https:\/\/www.bizzone.cz\/jak-spravne-namichat-beton\/","headline":"Jak spr\u00e1vn\u011b nam\u00edchat beton","name":"Jak spr\u00e1vn\u011b nam\u00edchat beton","description":"Beton. Docela oby\u010dejn\u00e1 sm\u011bs anorganick\u00e9ho materi\u00e1lu \u0159\u00ed\u010dn\u00edho nebo kopan\u00e9ho p\u00edsku, vody a cementu. Nic v\u00edc, nic m\u00ed\u0148. Kdybychom nic takov\u00e9ho neznali, neexistovala by panelov\u00e1 s\u00eddli\u0161t\u011b, hotely, rekrea\u010dn\u00ed za\u0159\u00edzen\u00ed, plaveck\u00e9 baz\u00e9ny, h\u0159i\u0161t\u011b a sportovi\u0161t\u011b, televizn\u00ed a komunika\u010dn\u00ed ant\u00e9ny a vys\u00edla\u010de a mnoho dal\u0161\u00edch staveb. Mosty a budovy by se musely stav\u011bt z kamene a spojovat podobn\u011b,...","datePublished":"2017-07-28","dateModified":"2023-05-05","author":{"@type":"Person","@id":"https:\/\/www.bizzone.cz\/author\/#Person","name":"bizzone.cz\n","url":"https:\/\/www.bizzone.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/5522eb0fc8481dea5f6519f6a0b15ee2c46358d48429b281fd7c49cbb5a929f9?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/5522eb0fc8481dea5f6519f6a0b15ee2c46358d48429b281fd7c49cbb5a929f9?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"bizzone.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/bizzone.cz\/wp-content\/uploads\/img_a321543_w2299_t1532769805.jpg","url":"https:\/\/bizzone.cz\/wp-content\/uploads\/img_a321543_w2299_t1532769805.jpg","height":"","width":""},"url":"https:\/\/www.bizzone.cz\/jak-spravne-namichat-beton\/","about":["Neza\u0159azen\u00e9"],"wordCount":433,"articleBody":"Beton. Docela oby\u010dejn\u00e1 sm\u011bs anorganick\u00e9ho materi\u00e1lu \u0159\u00ed\u010dn\u00edho nebo kopan\u00e9ho p\u00edsku, vody a cementu. Nic v\u00edc, nic m\u00ed\u0148. Kdybychom nic takov\u00e9ho neznali, neexistovala by panelov\u00e1 s\u00eddli\u0161t\u011b, hotely, rekrea\u010dn\u00ed za\u0159\u00edzen\u00ed, plaveck\u00e9 baz\u00e9ny, h\u0159i\u0161t\u011b a sportovi\u0161t\u011b, televizn\u00ed a komunika\u010dn\u00ed ant\u00e9ny a vys\u00edla\u010de a mnoho dal\u0161\u00edch staveb. Mosty a budovy by se musely stav\u011bt z kamene a spojovat podobn\u011b, jako Karl\u016fv most, lid\u00e9 by bydleli p\u0159ev\u00e1\u017en\u011b v d\u0159evostavb\u00e1ch a v chatr\u010d\u00edch.
 Z\u00e1kladn\u00ed stavebn\u00ed materi\u00e1l
 Z\u00e1kladn\u00ed stavebn\u00ed jednotka, bez n\u00ed\u017e si \u017eivot nedok\u00e1\u017eeme p\u0159edstavit. P\u0159itom je pr\u00e1ce s betonem pom\u011brn\u011b jednoduch\u00e1, sta\u010d\u00ed k tomu m\u00edcha\u010dka, p\u00edsek, cement, voda, dobr\u00e1 n\u00e1lada, a kdo si r\u00e1d zaposiluje, ten m\u016f\u017ee m\u00edchat beton t\u0159eba v kole\u010dku ru\u010dn\u011b .
 Bez cementu by to ne\u0161lo
 Cement pln\u00ed v betonu naprosto z\u00e1sadn\u00ed funkci. Slou\u017e\u00ed jako pojivo jemn\u00fdch krystal\u016f p\u00edsku. C\u00edlem je ka\u017ed\u00fd krystal obalit cementem v betonu tak, aby byl pokryt\u00fd cel\u00fd jeho povrch. Tam, kde se pojiva nedost\u00e1v\u00e1, p\u00edsek se v betonu za\u010dne drolit. Pokud je cementu naopak p\u0159\u00edli\u0161 mnoho, proces drolen\u00ed nastane rovn\u011b\u017e.
 Spr\u00e1vn\u00fd pom\u011br cementu a p\u00edsku je v\u017edy 1:2 nebo 1:3, u dren\u00e1\u017en\u00edch sm\u011bs\u00ed 1:4. Je to ov\u0161em pom\u011br hmotnostn\u00ed, nikoliv objemov\u00fd, na tuto d\u016fle\u017eitou pozn\u00e1mku zapom\u00ednaj\u00ed pom\u011brn\u011b \u010dasto chata\u0159i a chalup\u00e1\u0159i, kte\u0159\u00ed se rozhodli betonovat sv\u00e9pomoc\u00ed chodn\u00edky, z\u00eddky, plotov\u00e9 sloupky, j\u00edmky apod.
 Jak na to
 Betonovou sm\u011bs je nutno nejen spr\u00e1vn\u011b odm\u011b\u0159it podle hmotnosti, ale tak\u00e9 prom\u00edchat. Pokud pracujete s m\u00edcha\u010dkou, zjist\u011bte si jej\u00ed objem p\u0159edem, abyste zvl\u00e1dli nam\u00edchat spr\u00e1vn\u00fd pom\u011br surovin -v\u011bt\u0161inou se jedn\u00e1 o 120 \u2013 150 litr\u016f. A na 1 krychlov\u00fd metr betonovan\u00e9ho objemu pot\u0159ebujete zhruba 260 kg betonu.
 D\u016fle\u017eit\u00fd je tak\u00e9 postup m\u00edch\u00e1n\u00ed jednotliv\u00fdch slo\u017eek. Jako prvn\u00ed v\u017edy prol\u00e9vejte m\u00edcha\u010dku vodou. Pak p\u0159idejte zhruba 4 lopaty p\u00edsku nebo kam\u00ednk\u016f a postupn\u011b napl\u0148te do oto\u010dn\u00e9ho bubnu celou p\u0159edem odm\u011b\u0159enou d\u00e1vku cementu. Do \u0159\u00eddk\u00e9 ka\u0161e pak p\u0159idejte postupn\u011b zbytek p\u00edsku, dokud nebude m\u00edt hmota pot\u0159ebnou konzistenci. S vodou nakl\u00e1dejte opatrn\u011b, zejm\u00e9na u vnit\u0159n\u00edch podlah a pot\u011br\u016f m\u00e1 pak p\u0159\u00edli\u0161 vodnat\u00fd beton ni\u017e\u0161\u00ed pevnost.                                                                                                                                                                                                                                                                                                                                                                                        3.7\/5 - (10 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Jak spr\u00e1vn\u011b nam\u00edchat beton","item":"https:\/\/www.bizzone.cz\/jak-spravne-namichat-beton\/#breadcrumbitem"}]}]