Chidziwitso chaukadaulo

dziwitsani:

Ukadaulo wopangira simenti wamafuta a polima wakhala ukugwiritsidwa ntchito kwambiri pakufufuza ndi kukonza minda yamafuta ndi gasi.Chimodzi mwazinthu zofunika kwambiri paukadaulo wopangira simenti wa polima ndi anti-water loss agent, yomwe imatha kuchepetsa kutayika kwa madzi panthawi yopangira simenti.Kugwiritsa ntchito ukadaulo wa simenti ya polima kuli ndi zabwino zambiri monga kulimba kwambiri, kutsika pang'ono, komanso kusindikiza bwino kwambiri.Komabe, vuto lomwe anthu ambiri amakumana nalo pochita izi ndi kutaya madzi, ndiko kuti, matope a simenti amalowa mu mapangidwe, zomwe zimapangitsa kuti zikhale zovuta kutulutsa chubu panthawi yobwezeretsa mafuta.Chifukwa chake, kukulitsa kwapakati komanso kutsika kwamadzi ochepetsera kutentha kwakhala komwe kumayang'ana kwambiri kupita patsogolo kwaukadaulo wopangira simenti.

Polima mafuta bwino simenti madzimadzi kutaya reducer:

Chowonjezera chamadzimadzi ndi chinthu chofunikira kwambiri pokonzekera slurry ya simenti.Ndi ufa womwe umasungunuka mosavuta m'madzi ndipo uli ndi zinthu zabwino zosakaniza.Pa mapangidwe, madzimadzi kutaya ulamuliro wothandizila kusakaniza ndi zigawo zina kupanga homogeneous ndi khola simenti slurry.Wowongolera kutaya kwamadzimadzi amagwira ntchito yofunika kwambiri pakuchepetsa kutayika kwamadzimadzi panthawi yomanga simenti.Amachepetsa kusamuka kwa madzi mumatope kupita ku mapangidwe ozungulira ndikuwongolera makina a simenti.

Kutaya madzi ≤ 50:

Mukamagwiritsa ntchito zochepetsera zamadzimadzi, ndikofunikira kuyang'anira kuchuluka kwamadzi otayika mkati mwamitundu ina, nthawi zambiri zosakwana kapena zofanana ndi 50ml/30min.Ngati madzi atayika kwambiri, matope a simenti amatha kulowa m'kati mwake, zomwe zimapangitsa kuti zibowo ziziyenda bwino, matope, ndi kulephera kwa simenti.Kumbali ina, ngati madzi otaya madzi ndi otsika kwambiri, nthawi ya simenti idzawonjezeka, ndipo wothandizira wotsutsa-kutayika wamadzi amafunikira, zomwe zimawonjezera mtengo wa ndondomeko.

Chochepetsa kutentha kwapakati ndi kutsika kwamadzimadzi:

Panthawi yopangira simenti m'minda yamafuta, kutayika kwa madzi kumakhudzidwa ndi zinthu zosiyanasiyana monga kutentha kwa mapangidwe, kupanikizika, ndi permeability.Makamaka, kutentha kwa simenti yamadzimadzi kumakhudza kwambiri kutayika kwamadzimadzi.Kutayika kwamadzimadzi kumawonjezeka kwambiri pa kutentha kwakukulu.Choncho, pokonza simenti, m'pofunika kugwiritsa ntchito zowonjezera zowonjezera komanso zotsika kutentha kwamadzimadzi zomwe zingathe kuchepetsa kutayika kwa madzi pa kutentha kwakukulu.

Powombetsa mkota:

Mwachidule, ukadaulo wopangira simenti wamafuta a polima wakhala umodzi mwamaukadaulo ofunikira pakufufuza ndi chitukuko chamafuta ndi gasi.Chimodzi mwazinthu zazikulu zaukadaulowu ndi anti-water loss agent, yomwe imathandizira kwambiri kuchepetsa kutayika kwa madzi panthawi yomanga simenti.Kuwongolera kutayika kwa madzi pokonza matope kumathandizanso kwambiri kuti ntchito yomanga simenti ikhale yopambana.Kupanga zida zochepetsera kutentha kwapakati komanso kutsika ndikofunikira kwambiri pakuwongolera simenti, kuchepetsa ndalama komanso kuwongolera kukhulupirika kwa zitsime zamafuta ndi gasi.