Post Date:16,Oct,2023
Mazwi esimende, kongiri, uye dhaka anogona kuvhiringa kune avo vachangotanga, asi musiyano mukuru ndewekuti simende ipfu yakasungirirwa (isina kumboshandiswa yoga), dhaka rinoumbwa nesamende nejecha, uye kongiri inogadzirwa ne simende, jecha, nematombo. Mukuwedzera kune zvigadzirwa zvavo zvakasiyana, kushandiswa kwavo kwakasiyanawo zvakanyanya. Kunyange vanamuzvinabhizimisi vanoshanda nemidziyo iyi zuva nezuva vanogona kuvhiringa mazwi aya mumutauro wakanyanya, sezvo simende ichiwanzo shandiswa kureva kongiri.
Simende
Simende chisungo pakati pekongiri nedhaka. Kazhinji inogadzirwa nemarara, ivhu, makungu uye silica jecha. Zvishandiso zvinopwanywa zvobva zvasanganiswa nezvimwe zvinhu, zvinosanganisira iron ore, zvobva zvapiswa kusvika pa2,700 degrees Fahrenheit. Nyaya iyi inonzi clinker inokuyiwa kuita hupfu hwakatsetseka.
Unogona kuona simende inonzi Portland simende. Imhaka yekuti yakatanga kugadzirwa muEngland muzana ramakore rechi 19 naLeeds mason Joseph Aspdin, uyo akafananidza ruvara nedombo kubva pane imwe nzvimbo pachitsuwa chePortland, kumahombekombe eEngland.
Nhasi, simende yePortland ndiyo ichiri kushandiswa zvakanyanya. Iyo "hydraulic" simenti, zvinongoreva kuti inogadzika uye inoomesa kana yasanganiswa nemvura.
Concrete
Kutenderera pasirese, kongiri inowanzoshandiswa sehwaro hwakasimba uye zvivakwa zvechero rudzi rwekuvaka. Yakasiyana nekuti inotanga semusanganiswa wakapfava, wakaoma, wobva waita mvura, elastic material inogona kuumba chero mold kana maumbirwo, uye pakupedzisira inova dombo-rakaoma zvinhu zvatinodaidza kuti kongiri.
Concrete ine simenti, jecha, matombo kana zvimwe zvakakoshera kana zvakakoshera aggregates. Kuwedzerwa kwemvura kunoita kuti simende ishande, chinova chinhu chinoita kuti musanganiswa uumbe chinhu chakasimba.
Unogona kutenga masanganiswa ekongiri akagadzirwa mumabhegi anosanganisa simende, jecha nematombo pamwechete, uye chaunoda kuita kuwedzera mvura.
Izvi zvinobatsira kumapurojekiti madiki, senge anchoring fence posts kana zvimwe zvigadziriso. Kune mapurojekiti makuru, unogona kutenga masaga esimende wosanganisa nejecha nematombo pachako mubhara kana chimwe chigaba chikuru, kana kuodha premixed kongiri woita kuti iunzwe nekudururwa.
Mortar
Doka rinoumbwa nesamende nejecha. Kana mvura yakasanganiswa nechigadzirwa ichi, simiti inoshandiswa. Nepo kongiri inogona kushandiswa yoga, dhaka rinoshandiswa kubatanidza zvidhinha, dombo, kana zvimwe zvakaoma mamiriro ezvinhu pamwechete. Kusanganisa simende, naizvozvo, nenzira kwayo, zvinoreva kushandiswa kwesamende kusanganisa dhaka kana kongiri.
Mukuvakwa kwezvidhinha patio, dhaka dzimwe nguva rinoshandiswa pakati pezvidhinha, kunyange munyaya iyi haisi kushandiswa nguva dzose. Munharaunda dzekuchamhembe, semuenzaniso, dhaka rinotsemuka nyore munguva yechando, saka zvidhinha zvinogona kungonamatirwa pedyo, kana jecha rinowedzerwa pakati pazvo.
Nguva yekutumira: Oct-16-2023
