Post Zuva:14,Mar,2022

Chikumbiro chinotsanangurwa sechinhu kunze kwemvura kunze kwemvura, hydralic comentitious zvinhu kana kusimbiswa kwemisangano yekushandisa kwayo . Sezvacherechedzwa muChikamu 1, chiitiko chemakemikari chinowanzo tsanangurwa seisingatorerwe sekarazocalan (haidi calcium hydroxide yekuita) kufungidzira muchimiro chemagetsi, kumiswa kana kusimba-mvura solid.

Mvura-kuderedza Adminture inogadzirisa mapurasitiki emakonomari Ose, kana ichishandiswa zvakakodzera, batsirai kune tsika dzakanaka dzinobvumirana. Zvakare, ese ari maviri admixture anofanira kuita zvinodiwa neASTM C 494 (ona Tafura 1).

Mvura-kuderedza Admixture

Mvura inoderedza ita chaizvo kuti: Deredza huwandu hwemvura yekusanganisa hunodiwa kuti uwane iyo yakapihwa slump. Izvi zvinogona kuguma nekuderedzwa kwemvura-cementitious ratio (W / c ratio), iyo inotungamira kune simba uye yakawanda kwazvo kongiri.

Kuderedza iyo w / c ratio yekongiri yakaonekwa seyakanyanya kukosha chinhu kuti isimbe, yepamusoro-kongiri. Kune rimwe divi, dzimwe nguva cement yezvinyorwa zvinogona kudzikiswa nepo kuchengetedza iyo yekutanga W / C ratio kuderedza mitengo kana kupisa kwehydration yehudyu concrete doncrete doncrete doncrete doncrete doncrete doncrete doncrete doncrete doncete anodurura.

Mvura-kuderedza kufungidzira zvakare kuderedza kusarongeka uye kugadzirisa kuyerera kwekongiri. Naizvozvo, ivo vanowanzoshandiswa kuitira concrete pumping application zvakare.

Mvura-kuderedza Adminture inowanzowira mumapoka matatu: yakaderera- mwero- uye yakakwirira-huwandu. Mapoka aya anovakirwa pane huwandu hwekudzora kwemvura kwesmixture. Iyo muzana yekudzikiswa kwemvura ndeyekuenderana nemvura yekutanga yemvura inodiwa kuti uwane iyo yakapihwa slump (ona tafura 2).

Ipo mvura yese inoderedza ikafanana, imwe neimwe ine application yakakodzera iyo iyo yakanakira zvakakwana. Tafura 3 inopa pfupiso yemhando nhatu dzemvura-dzinodzora zvirevo, marangi avo ekudzora mvura uye mashandisiro avo ekutanga. Mhedzisiro yavo yekukwikwidza kwemhepo ichasiyana zvichienderana nemakemikari.

Mashandisiro avari kushanda

Kana simende ichisangana nemvura, emagetsi asina kujairika emvura pamusoro peiyo simenti yezvikamu zvinokwezva, izvo zvinoguma nekufa kana kuunganidzwa kwezvidimbu. Chikamu chakanaka chemvura chakabatikana mune izvi maitiro, nekudaro zvichitungamira kumishini yekubatanidza uye yakaderedzwa slump.

Mvura-kuderedza Admxtures zvakanyatso tsanangurira nzvimbo yekupomerwa pane yakasimba zvidimbu uye kukonzera nzvimbo dzese dzakatakura semhosva. Sezvo zvikamu zvacho zvakaita sekushambadzira kudzoserwa, vanoderedza kuwanda kweiyo simenent zvidimbu uye kubvumira kupararira kuri nani. Ivo zvakare vanodzikisa zvikwangwani zvea pasita, zvichikonzera kutonhora kukuru.

Tafura 4 inopa zvimwe zvezvinhu zvakajairika zvinoshandiswa kune imwe neimwe yemvura inobhadhara mvura. Zvimwe zvikamu zvinowedzerwa zvinoenderana zvichienderana nechigadzirwa uye mugadziri. Kumwe kudzora kwemvura kufungidzira kune sekondari mhedzisiro kana inosanganiswa nedzinza kana macerrators.