Tsiku Lolemba: 15, Apr, 2024
Kusanthula gawo la Asicretios As Acretiores:
Kusakaniza konkriti ndi mankhwala opangidwa ndi ma conrete pokonzekera konkriti. Itha kusintha zinthu zakuthupi ndikugwira ntchito konkriti, poyankha ma simenti. Choyamba, alonda a konkriti amatenga gawo lofunikira pakuwongolera magawo a konkriti. Mbali inayo, imakulitsa nyonga ndi kukhazikika kwa konkriti. Powonjezera kuchuluka koyenera monga othandizira olimbikitsa ndi olimbikitsa, mphamvu zopsinjika ndi kuzizira kwa konkriti zitha kuwonjezeka konkriti chitha kuwonjezeka. Komabe, zingathandizenso kusanja konkriti. Mwachitsanzo, kuwonjezera ma addictures monga othandizira madzi ndi oteteza kumatha kuchepetsa kulowa kwa chinyezi ndi mankhwala kukhala konkriti ndikusintha kukhazikika ndi ntchito ya konkriti. Kachiwiri, kulembetsa kwa konkriti kumatenga gawo lofunikira pakukonzanso ntchito konkriti. Kugwirira ntchito magwiridwe antchito, kumasuka ndi kuphika kwa konkriti pakumanga. Powonjezera ma Admictores monga madzi ochepetsa madzi, zotchinga ndi ma pulasitiki, madzi ndi zomata za simenti zitha kusinthidwa, kupangitsa kuti madzi atseke ndi madzi abwino. Kuphatikiza apo, kuwonjezera ma admixtive monga othandizira a mpweya ndi okhazikika amathanso kuwongolera zomwe zili ndi sizete kuti zizolowere.
Kafukufuku pa njira zingapo zogwiritsira ntchito a Acreti
(1) Kugwiritsa ntchito madzi kuchepetsa mankhwala
Kuchokera pakuchita kwamadzi ochepetsa madzi, kuchepetsa madzi kumadzi kumawonekera kwambiri, ndipo imakhala ndi luso lapadera. Ngati mukufuna kuwonetsetsa kuti muyeso wa zikwangwani, ngati mungathe kuphatikiza zabwino zamadzi, mutha kuchepetsa bwino madzi ndi kuchepetsa kuchuluka kwa simenti ya madzi, potero pofika pa chitukuko cha chitukuko. Kuwongolera mphamvu ya kapangidwe ka konkriti. Nthawi yomweyo, kugwiritsa ntchito bwino njirayi kungathandizenso kusinthanso kachulukidwe ka zinthu konkriti. Ngati madzi onse a zinthu zolumikizira samasinthidwa amakhala osasinthika, kuphatikiza ndi zabwino zamadzi kuwononga madzi, madzi amtundu wa zinthu zokonkriti amatha kupitilizidwa. Pomwe akusungabe kukhazikika kwa mphamvu ya konkriti, kugwiritsa ntchito masinjidwe amtundu kumadzi kungathenso kupanga cholinga chotsatsa simenti. Chepetsani ntchito yomanga yosafunikira komanso kuchepetsa ndalama. Pakadali pano, mitundu yosiyanasiyana yamadzi ochepetsera madzi awonekera pamsika. Mitundu yosiyanasiyana yamankhwala ochepetsa madzi ali ndi kusiyana kwakukulu kwambiri malinga ndi kuchuluka kwa ntchito ndi kugwiritsa ntchito zotsatira zake. Ogwira ntchito ayenera kuwagwiritsa ntchito bwino malinga ndi zomwe zili patsamba.
(2) Kugwiritsa ntchito wothandizila kwambiri
Mphamvu yoyambirira imayenera makamaka yomanga nyengo yozizira kapena pokonza mwadzidzidzi. Ngati kutentha kwa malo omanga kumapezeka kuti ndi mkulu, kapena kutentha kwatsika kuposa -5 ℃, kuphatikizika kumeneku sikungagwiritsidwe ntchito. Kwa zida zazikulu kwambiri, kutentha kwamphamvu kukumasulidwa mukamagwiritsidwa ntchito, ndipo othandizira olimbitsa thupi sayenera kugwiritsidwa ntchito. Pakadali pano, othandizira oyambirira omwe amagwiritsidwa ntchito kwambiri makamaka amasungunuka oyambira olimbitsa thupi ndi mankhwala oyambilira a chloride. Zina mwa izo, phindu lodziwikiratu ndi mchere woyambirira wa chlorine woyambirira, womwe umakhala ndi sodium chloride, calcium chloride ndi zinthu zina. Mukamagwiritsa ntchito mankhwala oyambawa, calcium chloride amatha kuchitika ndi zigawo za simenti, zikuwonjezera kuchuluka kolimba mumiyala ya simenti, motero kumalimbikitsa kukhazikitsidwa kwa miyala ya simenti. Nditamaliza ntchito zomwe zili pamwambapa, zimathanso kuchepetsa vuto la madzi aulere kwambiri ku Concete pa ntchito zachikhalidwe, kuchepetsa zolinga zamphamvu kwambiri komanso kuchuluka kwambiri. Tiyenera kudziwa kuti chlorine mchere woyamba wa chlorine ukhoza kukhala ndi mphamvu inayake pa chitsulo pakugwiritsa ntchito. Poganizira vutoli, mtundu wophatikizana siyabwino kujambulidwa konkriti yomanga. Pofufuza za Sulfate Yoyambirira Yoyambirira, sodium sulfate woyamba mphamvu amagwiritsidwa ntchito kwambiri. Kuweruza pamikhalidwe yake, imakhala ndi madzi okhwima. Ndipo mukasakanikirana mu zinthu konkriti, zimathanso kusinthana mitundu ingapo yamitundu ina mu simenti, pamapeto pake kupangira suldium sulbolim. Pambuyo popangidwa, imatha kupititsa patsogolo kuthamanga kwa simenti. Chloride mchere woyambirira wa chloride ndi sulfate woyamba-khansa ndi mankhwala osokoneza bongo atsopano. Ngati ntchito yolingana iyenera kuchitika pa kutentha kwambiri, wothandizira wamkuluyu sangagwiritsidwe ntchito. Munthawi yogwiritsa ntchito, antchito amafunika kuphatikiza machitidwe a othandizira osiyanasiyana olimbitsa thupi komanso momwe ziliri patsamba loti asankhe wothandizira woyenera kwambiri.
Post Nthawi: Apr-17-2024
