General chinangwa portland simende

General chinangwa Portland simende imhando ye hydraulic simende iyo inowanzoshandiswa mukuvaka. Inogadzirwa nekukuya clinker, inova rudzi rwelimestone yakapiswa kusvika pakupisa kwakanyanya uye yakasanganiswa negypsum. Muvhenganiswa uyu unozokuyiwa kuita hupfu hwakatsetseka, hunoshandiswa kugadzira kongiri, dhaka, nezvimwe zvekuvaka.

Imwe yemabhenefiti ekutanga echinangwa chePortland simende ndeyekuita kwayo. Inogona kushandiswa kune dzakasiyana siyana dzekushandisa, kubva pakuvaka zvivakwa zvakakura kusvika pakugadzira madiki eimba mapurojekiti. Izvo zvakare zvisingadhure, zvichiita kuti ive sarudzo yakakurumbira kune vese nyanzvi makondirakiti uye do-it-yourselfers.

Imwe mukana wechinangwa chakajairika Portland simende isimba rayo. Kana yasanganiswa nemvura, inoumba chipfuro chinoomesa nekufamba kwenguva, chichiva chinhu chakasimba, chakasimba. Izvi zvinoita kuti ive yakanakira kushandiswa mu-high-stress applications, senge nheyo dzekuvaka, mabhiriji, uye zvimwe zvimiro zvinoda kumira zvinorema.

Pamusoro pesimba rayo, chinangwa chakajairika Portland simende zvakare inopokana zvakanyanya nemamiriro ekunze uye kukuvara kwemakemikari. Inogona kumira kutarisana nemamiriro ezvinhu akaoma ezvakatipoteredza, kusanganisira mvura, mhepo, uye kupisa kwakanyanya, pasina kurasikirwa kwehutano hwayo. Izvi zvinoita kuti ive sarudzo yakakurumbira yemapurojekiti ekunze, akadai semapatio, nzira dzekufamba, uye madziro ekuchengetedza.

General chinangwa Portland simende inogonawo kugadzirwa kuti isangane nezvinodiwa zveprojekiti. Semuenzaniso, inogona kusanganiswa nezvakasiyana-siyana zvekuwedzera, senge nhunzi ash kana silica fume, kuvandudza simba rayo, kusimba, kana kushanda. Izvi zvinobvumira makondirakiti kuti agadzirise simende kuti isangane nezvinodiwa zvakasiyana zvemapurojekiti avo.

Nekudaro, kune zvakare zvimwe zvipimo kune zvakajairika chinangwa Portland simende. Chimwe chezvipingamupinyi zvikuru ndiko kukanganisa kwayo kwezvakatipoteredza. Kugadzirwa kwesimende ndiko kwanyanya kuburitsa kabhoni, uye migodhi uye kutakura zvinhu zvakabikwa zvinogona kukanganisa zvakanyanya nharaunda. Nekuda kweizvozvo, kune kufamba kuri kukura kwekushandisa zvinhu zvekuvaka zvakatsiga, senge kongiri inodzokororwa, kuderedza kukanganiswa kwezvakatipoteredza kwekuvaka.

Rimwe dambudziko rine chinangwa chakajairwa Portland simende kugona kwayo kutsemuka uye shrinkage. Kana simende yaoma, inoita gadziriro inonzi hydration, iyo inogona kuita kuti ishoma. Nokufamba kwenguva, shrinkage iyi inogona kuita kuti simende iparadze kana kuputika, izvo zvinogona kukanganisa kutendeseka kwayo. Kuti udzivise izvi, makondirakiti angangoda kushandisa zvekuwedzera kana zvinhu zvekusimbisa, senge simbi simbi, kuona kuti simende inoramba yakasimba uye yakagadzikana.

Mukupedzisa, chinangwa chakajairwa Portland simende chinhu chinochinja-chinja, chinogara, uye chinodhura chivakwa chekuvaka chinoshandiswa zvakanyanya mukuvaka. Kunyange iine zvimwe zvinogumira, kusanganisira kukanganisa kwayo kwezvakatipoteredza uye mukana wekutsemuka uye shrinkage, inoramba iri sarudzo yakakurumbira kune akawanda mapurojekiti ekuvaka. Sezvo indasitiri yekuvaka ichiramba ichishanduka uye ichienderera mberi, zvingangoita kuti zvinhu zvitsva uye matekinoroji achabuda kuti awedzere kuita uye kusimba kwechinangwa chakajairika Portland simende.