Brand zesamente: indlela uzulazule

Xa ucinga into efana lophawu isamente, kufuneka unikele ingqalelo le mimiselo olusesikweni, ziphakathi apho GOST30515-97 leyo yahlula zonke ukuqinisa ezizodwa kunye yoluntu. imixube Cementitious babe iziseko ezahlukeneyo (ferrite, calcium aluminate okanye Portland yesamente clinker) kwaye ziqulathe izongezo ezahlukeneyo bezimbiwa.

Kananjalo kubalulekile ukuba siqaphele ukuba yemiyinge ezahlukeneyo kufuneka kumanqanaba ahlukeneyo zesamente amandla compressive, izinga enganyangekiyo ezahlukeneyo (kwaye iqhele-bystrotverdeyushchie), amaxesha setting ezahlukeneyo - kukho umxube eziqala ukuba lukhuni ngemizuzu engaphantsi kwe-45 kwaye medlennoskhvatyvayuschiesya apho (iiyure kwama-2).

uhlobo nganye zesamente kufuneka ufezekise inani yemida, kuquka: ukwakhiwa ezingqalileyo, ixesha ukudumba, amandla compressive, samonapryazheniyu, isamente ingxinano uvavanyo, nokongezwa yomgama, umxholo zemichiza ezifunekayo (yeKhlorini ion, sulphur oxide, i oxide of mg), inqanaba yokuzahlula amanzi , ubushushu kunye nezinye iimpawu.

Funda malunga nokuqulunqwa zesamente lo mxube kuba ngegama layo. Oluneenkcukacha iimpawu isamente kokuhlaziya enikwe iindwendwe ngasentla ngokunjalo GOST10178-85. Ukuba igama iqala kwi PC - oku ke brand zesamente ngokusekelwe Portland isamente clinker, kwaye ukuba SPC - ngoko SLAG enesiqulatho eliphezulu ubunzima zeBlack (kwama-20%).

Emva amagama ngokupheleleyo okanye olufinyeziweyo iinombolo kule khulu, kuthetha amandla compressive. Kuba Portland uphawu silixabisile 600, 550, 500, 400, kuba zeBlack - amanani ukusuka 500 ukuya kuma- 300. Kwakhona, inani eliphezulu kwezithako A0 (akukho ongeziweyo) ukuba D20 ebalulwe isihloko (ongeziweyo - 20%). Inokuba liqulathe kubonisa Ukuqinisa ngokukhawuleza (D), hydrophobization isamente kunye plastification umxube (PL,-GF), imveliso clinker isamente kunye nokwakheka nganye (H) kunye nekhonkco Standard engqinelanayo.

Umzekelo, i-brand isamente PTS550-D5-B-PL i isamente Portland ngamandla compressive ka-550, ne-5% ongeziweyo bystrozatverdevayuschim kunye plasticized.

Kunye nokwakhiwa kwesakhiwo kubaluleke kakhulu ukuba zero imisebenzi umjikelo bathwalwa ngokufanelekileyo. ingqalelo ekhethekileyo kufuneka inikwe isiseko, elithanda yenziwe eziphathekayo. Eziphathekayo - umxube zesamente, isanti kunye luhlalu. Brand Cement kuba isiseko kufuneka ube namandla sezingeni eliphezulu ucinezelo (400-500), kwaye eliphezulu inani, incinci kuba imali nezinye izinto. Umzekelo, uhlobo oluthile lwesamente eseleyo izinto 400 weyele umlinganiselo 1 \ 3 \ 3, kwaye ibanga isamente 500 - 1 \ 4 \ 4, ngokulandelelana.

Cement kuyinto material ethintela amanzi kakuhle kakhulu, nto leyo ngokuqinisekileyo kuchaphazela iimpawu zayo - ekugqibeleni ithe amandla lowu. Ngoko ke, ukukhetha uphawu zesamente ukuba umsebenzi wokwakha, kufuneka ujonge kumhla wokwenziwa kunye ukucacisa iimeko yogcino, njengoko brand isamente 400 nganye yokugcina ngenyanga ulahlekelwa-10% yamandla ayo, nangenxa iinyanga ezintandathu ukuya kutshabalale-30% of iimpawu zibe isamente grade 280. Kuba oku isamente kuya kufuneka izongezo ezininzi, ke, ngeke sikwazi ukuqinisekisa ukuba isiseko kulo mzekelo, siye sifumane amandla afunekayo.