Konkriti wokonzeka (RMC) amapangidwa popanga masamba molingana ndi konkriti kenako amasamutsidwa kumalo a projekiti. Zomera zosakanikirana ndizodziwika kwambiri kuposa zosakaniza zouma. Muzomera zosakaniza, zonse zopangira konkriti kuphatikiza madzi zimasakanizidwa mu chosakanizira chapakati kenako zimasamutsidwa kumalo a projekiti ndi magalimoto amitengo. Popita, magalimoto amayenda mosalekeza pa 2 ~ 5 rpm kuti apewe kukhala komanso kupatula konkire. Ntchito yonse yambewu imayang'aniridwa kuchokera m'chipinda chowongolera. Zosakaniza za konkriti zimasungidwa mu chosakanizira malinga ndi kapangidwe kake. Kapangidwe konkriti wosakaniza ndi njira yopangira kiyubiki mita imodzi ya konkire. Kamangidwe mix ndi kusinthidwa ndi kusiyanasiyana kwa mphamvu yokoka enieni a simenti, akaphatikiza coarse, ndi akaphatikiza chabwino; Zinyontho zamagulu, ndi zina. Mwachitsanzo, ngati mphamvu yokoka ya coarse aggregate yawonjezeka, kulemera kwa coarse aggregate kuyenera kukulitsidwa moyenera. Ngati akaphatikiza ali ndi madzi ochulukirapo pamalo ouma pamwamba, madzi osakanikirana ayenera kuchepetsedwa moyenera. Pachakudya cha RMC, Quality Control Injiniya ayenera kupanga mndandanda kuti awonetsetse kuti malonda ali abwino.
RMC ili ndi zabwino zambiri pakusakanikirana pamasamba. RMC (i) imalola kuti ntchito yomanga ichitike mwachangu, (ii) imachepetsa mtengo wogwirizana ndi kuyang'anira ndi kuyang'anira, (iii) imawongolera bwino kwambiri kudzera pakulamulira molondola komanso pakompyuta pazipangizo za konkriti, (iv) zimathandizira kuchepetsa kuwonongeka kwa simenti, (v) ndi zopanda kuipitsa, (vi) zimathandizira kumaliza ntchito, (vii) zimatsimikizira kukhazikika kwa konkriti, (viii) kumathandizira kupulumutsa zachilengedwe, ndipo (ix) ndi njira yabwino yomanga m'malo ochepa.
Kumbali inayi, RMC ili ndi zoperewera zina: (i) nthawi yonyamuka kuchokera ku chomera kupita kumalo a projekiti ndivuto lalikulu chifukwa konkriti imakhala ndi nthawi ndipo singagwiritsidwe ntchito ngati konkriti isanatsanuliridwe pamalopo, (ii) magalimoto oyambitsa agitator kuyambitsa kuchuluka kwa misewu, ndipo (iii) misewuyi itha kuwonongeka chifukwa cholemedwa kwambiri ndi magalimoto. Ngati galimoto itanyamula kiyubiki mita 9 konkire, kulemera konse kwa galimotoyo kumatha kukhala pafupifupi matani 30. Komabe, pali njira zochepetsera mavutowa. Pogwiritsa ntchito kusanganikirana kwamankhwala, nthawi yolowera simenti imatha kutalikitsa. Misewu itha kupangidwa poganizira kulemera kwa magalimoto othamangitsidwa. RMC imathanso kusamutsidwa ndi magalimoto ang'onoang'ono okhala ndi mita imodzi mpaka isanu ndi iwiri ya konkire. Poganizira zabwino za RMC pakasakanikirana pamasamba, RMC ndiyodziwika padziko lonse lapansi. Titha kudziwa kuti pafupifupi theka la konkriti yonse yomwe idadyedwa padziko lonse lapansi imapangidwa m'minda ya RMC.
Zosakaniza za RMC ndi simenti, coarse aggregate, zabwino zonse, madzi, ndi kusakanikirana kwa mankhwala. Pansi pa miyezo yathu ya simenti, mitundu 27 ya simenti imafotokozedwa. Mtundu wa CEM I ndim simenti yokhayokha. M'mitundu ina, gawo linalake lachitsulo limasinthidwa ndikuphatikiza mchere, monga ntchentche phulusa, slag, ndi zina. Chifukwa cha kuchepa kwamankhwala ndi madzi, simenti zamchere zimakhala bwino poyerekeza ndi simenti yokhayokha. Simenti yochokera ku simenti imachedwetsa kukhazikitsa ndikusunga konkriti kuti igwire ntchito kwa nthawi yayitali. Amachepetsanso kutentha kwa konkire chifukwa chakuchedwa kuchita ndi madzi.
Post nthawi: Jul-17-2020