Brand esimende: sei kufamba

Uchifunga izvozvo somunhu samende muchiso, unofanira kuisa pfungwa mirau pamutemo, pakati ndiyo GOST30515-97 iyo anokamura zvose anokosha cements uye vehurumende. Cementitious wemisanganiswa vangava zvigadziko zvakasiyana (ferrite, karusiyamu aluminate kana Portland esimende clinker) uye zvine siyana chicherwa zvokuwedzera.

Uyewo kucherechedza ndechokuti pezvitsiga siyana vane yakasiyana siyana esimende compressive simba, dzakasiyana Kurapwa mwero (uye kazhinji-bystrotverdeyushchie), yakasiyana ezvinhu nguva - pane musanganiswa kuti atange kuomesa mumaminitsi asingasviki 45 uye ipapo medlennoskhvatyvayuschiesya (pamusoro 2 maawa).

Mumwe muchiso esimende vanofanira kusangana zvinoverengeka parameters, kusanganisira: chaiyo zvinhu nziyo, thickening nguva, simba compressive, samonapryazheniyu, simende arambe achirema bvunzo, munhu Linear nokuwedzera, zviri zvinodiwa makemikari (kuiisa chlorine Ion, sarufa oxide, imwe oxide pamusoro MG), padanho mvura inonatsa , kupisa uye zvimwe zvinhu.

Dzidza pamusoro murwiyo pamusoro samende musanganiswa anogona kuva nezita raro. Detailed decoding simende unhu anopiwa pamusoro vaenzi uyewo GOST10178-85. Kana zita rinotanga pamusoro PC - ndiro hachizi esimende kwakavakirwa Portland esimende clinker, uye kana SPC - ipapo isu gang dzakakwirira zviri gang uremu (20%).

Pashure mazita dzizere kana rakapfupikiswa vari nhamba vamazana, izvo zvinoreva simba compressive. For Portland maitiro anokoshesa 600, 550, 500, 400, nokuti gang - nhamba 500 kusvika 300. Uyewo, kufadza nhamba yokuvirisa A0 (hapana yokuvirisa) kuti D20 raanotaura rokuti (yokuvirisa - 20%). Ingasanganisira chiratidzo nokukurumidza solidification (D), esimende hydrophobization uye plastification pamusoro musanganiswa (PL, GF), kugadzirwa esimende clinker pamwe normalized nziyo (H) uye kubatana kuti unoenderana Standard.

Somuenzaniso, kuti zvizivikanwe esimende PTS550-D5-B-PL ari Portland simende nesimba compressive pamusoro 550, pamwe 5% yokuvirisa bystrozatverdevayuschim uye plasticized.

With pakuvaka chivakwa zvakakosha chaizvo kuti zero kutenderera mabasa rwaiitwa zvakanaka. Cherechedzai chipiwe nheyo, iro rinowanzoshandurwa chakagadzirwa nekongiri. Concrete - musanganiswa esimende, jecha uye mavhu. Brand Cement nokuti hwaro inofanira kuva zvakakwana yakakwirira compression simba (400-500), uye yakakwirira kuwanda, kashoma zvinogona uwandu zvimwe zvinhu. Somuenzaniso, kuti zvizivikanwe esimende asara zvinhu 400 vanotorwa pakati nhamba 1 \ 3 \ 3, uye simende giredhi 500 - 1 \ 4 \ 4, ukuwo.

Cement chinhu zvinhu izvo absorbs mvura zvikuru, izvo zvechokwadi inobata ehupfumi ayo - nayo pakupedzisira anorasikirwa simba rakati. Saka, kusarudza zvizivikanwe esimende nokuda rokuvaka, unofanira kutarisa musi gadzira uye kuti kutaridzwa okuchengetera zvinhu, sezvo muchiso simende 400 pamwedzi okuchengetera anorasikirwa 10% yesimba rayo, uye mwedzi matanhatu kurasikirwa 30% kuti zvinhu uye kuva simende giredhi 280. Nokuti simende ichi vachada zvimwe zvokuwedzera, zvisinei, kwete anogona kuvimbisa kuti nheyo iyi, tinowana simba zvaida.