Brand ciment: otú ha ịnyagharịa

Na-atụle ihe dị otú ahụ dị ka a cement ika, ị kwesịrị ilekwasị anya n'ihe ndị iwu na ụkpụrụ, otu nke bụ GOST30515-97 nke abahade niile pụrụ iche cements na obodo. Cementitious mixtures nwere ike ịdị iche bases (ferrite, calcium aluminate ma ọ bụ Portland ciment clinker) na nwere dị iche iche ịnweta Mmeju.

Ọzọkwa uru arịba ama bụ na dị iche iche ụdị nwere ọkwa dị iche iche nke ciment compressive ike, dị iche iche ime ọnụego (na ejikari-bystrotverdeyushchie), dị iche iche ọnọdụ ugboro - e bụ ngwakọta na-amalite kwesie na-erughị 45 nkeji na e medlennoskhvatyvayuschiesya (ihe karịrị awa 2).

Onye ọ bụla ika ciment ga izute a ọnụ ọgụgụ nke parameters, gụnyere: kpọmkwem ihe mejupụtara, ndim oge, compressive ike, samonapryazheniyu, ciment njupụta ule, a linear mgbasa, ọdịnaya nke chọrọ ọgwụ (chlorine ion, sọlfọ oxide, ihe oxide nke mg), larịị nke mmiri nkewa , okpomọkụ na ndị ọzọ e ji mara.

Mụta banyere ihe ndị mejupụtara nke ciment ngwakọta nwere ike ịbụ ya aha. Zuru ezu nyopụta cement e ji mara e nyere na n'elu ọbịa nakwa GOST10178-85. Ọ bụrụ na aha ahụ na-amalite na PC - nke a bụ ika ciment dabeere na Portland ciment clinker, na ọ bụrụ na SPC - anyị slag na elu ọdịnaya nke slag arọ (n'elu 20%).

Mgbe zuru ma ọ bụ abbreviated aha bụ nọmba ke otu narị otu narị, nke pụtara compressive ike. N'ihi na Portland e ji mara ji 600, 550, 500, 400, maka slag - na nọmba 500 na 300. Ọzọkwa, karịa ọnụ ọgụgụ nke nwekwara A0 (enweghị nwekwara) na D20 kpọmkwem na aha (nwekwara - 20%). Nwere ike ịnwe ihe na-egosi nke ngwa ngwa solidification (D), ciment hydrophobization na plastification nke ngwakọta (pl, gf), na mmepụta nke ciment clinker na normalized mejupụtara (H) na a njikọ na kwekọrọ ekwekọ Standard.

Dị ka ihe atụ, ika cement PTS550-D5-B-pl bụ a Portland ciment na compressive ike nke 550, na 5% nwekwara bystrozatverdevayuschim na plasticized.

Na ndị na-ewu ụlọ ahụ ọ dị ezigbo mkpa na efu okirikiri ọrụ e rụrụ rụọ ọrụ nke ọma. Akpan akpan ntị ga-nyere na ntọala ahụ, nke a na-mere nke ihe. Concrete - a ngwakọta nke ciment, ájá na gravel. Brand Cement maka ntọala ga-nke zuru ezu elu mkpakọ ike (400-500), na elu ọnụ ọgụgụ, ndị na-erughị nwere ike ịbụ ego nke ndị ọzọ ihe. Dị ka ihe atụ, ika ciment fọdụrụ ihe 400 na-e ke ruru 1 \ 3 \ 3, na simenti ọkwa 500 - 1 \ 4 \ 4, karị.

Cement bụ a ihe onwunwe nke na-amịkọrọ mmiri nke ọma, nke na-emetụta ya Njirimara - ọ emecha tụfuru ike kwuru. Ya mere, ị na-ahọrọ na ika ciment maka ọrụ owuwu, mkpa ka ị na-ele anya na ụbọchị nke rụpụta na ezipụta na nchekwa ọnọdụ, dị ka ika cement 400 kwa ọnwa nchekwa na-efunari 10% ike ya, na maka ọnwa isii ida 30% nke atụmatụ ma na-ciment ọkwa 280. N'ihi na nke a cement ga-mkpa ọzọ Mmeju, Otú ọ dị, ike-ekwe nkwa na ntọala na nke a, anyị na-enweta chọrọ ike.