Chii PSI iri High Early Concrete?

Chii PSI yakakwira kongiri yekutanga?

Simba rekumanikidza rekongiri rinowanzo kuyerwa mumapaundi paskweya inch (psi). Ndiyo chiyero chekutanga chinoshandiswa kuongorora kushanda kwekongiri musanganiswa. Kongiri ine psi yakakwirira yakasimba, saka ichave yakasimba uye inogara kwenguva refu.

Ndeipi psi yakakodzera yekongiri?

Chimiro chepsi chezvivakwa zvekongiri chinosiyana, asi kazhinji inotangira pa 3,500 psi uye anosimuka ku 5,000 psi kana kupfuura. Iyi psi inowanzodiwa kune kongiri tsoka, slabs pagiredhi, suspended slabs, uye matanda. Inodiwawo pamigwagwa mikuru, izvo zvinoda psi ye 4,000 ku 5,000 psi kutsungirira kutonhora / kunyungudika kutenderera.

Ndedzipi dzimwe nzira dzekuwedzera psi yekongiri?

Kuwedzera tembiricha yekongiri ichangobva kusanganiswa kwave kuchizivikanwa kukurumidza kusimudzira kwesimba rekongiri. Zvisinei, kurapa mhepo inodhura uye anti-eco-hushamwari.

Ita makemikari admixtures uye supplementary cementitious zvinhu zvinomhanyisa simba rekutanga rekongiri?

Mimwe makemikari admixtures, zvakadai se calcium chloride, zvakawanikwa kuti zvikurumidze simba rekutanga rekongiri. Aya masanganiswa anowanzo shandiswa kuderedza mvura kune simenti reshiyo mukongiri.

Ita nguva dzakanyorova dzekuporesa kana kuisa pamazuva anopisa kuwedzera psi yekongiri?

Mamwe masangano akakurudzira kudzivirira kuiswa pamazuva anopisa, kubvongodza nemvura yechando, uye kuisa usiku. Zvose izvi zviito zvinowedzera psi yekrete, asi ese anogonawo kubatsira mukutsemuka kubva pakuomesa shrinkage.