Dab tsi muaj txiaj ntxiv ntawm cov ciment uas siv rau hauv cov khoom siv rau kawm kho, xws li cov concrete thiab ciment. Cov ciment no muaj kev pab los ntawm kev muab cov duab ntsuab zoo thiab kev ua kom cov duab ntawm cov khoom zoo dua. Nyob rau Runhuabang, peb xav tau ua kom muaj cov khoom zoo tshaj plaws ironsida Sisa los pab cov neeg siv rau ntau yam qhov kev siv, los ntawm cov neeg kho thiab cov neeg tsim duab. Cov tsev tuaj yeem ua kom zoo dua thiab muaj duab ntsuab zoo dua los ntawm kev siv cov ciment uas muaj iron oxide. Lawv tuaj yeem sau rau hauv cov khoom ntau yam thiab cov duab ntsuab yuav muaj txiaj ntsig zoo thiab nyuaj dua thaum muaj kev siv. Qhov no yog qhov uas tau ua rau lawv muaj kev npaj siab rau ntau yam qhov kev kho.
Muaj ntau yam qhov zoo rau kev siv iron oxide cement pigment , thiab yog li no nws yog qhov kev txwv tshaj plaws rau kev kawm. Thaum kawg, cov duab no muaj cov liab uas yuav tshwm sim rau cov duab uas tsis tuaj yeem xav tau. Cov neeg kawm tuaj yeem xaiv cov liab ntawm cov duab los sib npaug rau cov lus qhia kawm. Liab dub siab, liab daj ntsuab, lossis liab ntsuab sov: dab tsi liab uas tau xav tau, cov duab iron oxide tuaj yeem muab tau. Qhov zoo dua yog tias lawv yog qhov nyob ntau heev. Tias thaum cov duab lwm yam ntau yuav tshwm sim rau kev tshem tawm lossis kev tshem tawm los ntawm qhov cua thiab qhov roj, cov duab iron oxide tsis tau tshem tawm los ntawm kev tshem tawm. Qhov no yog qhov tshwj xeeb rau cov phab ntsa uas yuav tsum muaj duab zoo rau ntau xyoo. Ntxiv rau no, lawv yog qhov zoo rau lub zog. Cov duab iron oxide no yog muaj cov khoom tshuaj uas muaj hauv lub zog, thiab tsis muaj cov khoom tshuaj tshwj xeeb uas ua rau mob. Qhov no, tab sis yog tias thaum cov neeg pib siv cov khoom no rau kev kawm, lub zog thiab cov neeg tsis tau mob. Lawv kuj tuaj yeem pab tshem tawm qhov nyob ntawm cov concrete. Cov duab tuaj yeem muab sau rau hauv cov concrete, thiab pab tshem tawm qhov nyob ntawm cov concrete. Qhov no yog qhov tshwj xeeb rau cov rooj, cov rooj ntsa, thiab cov phab ntsa uas muaj kev siv ntau. Thaum kawg, cov duab iron oxide yog qhov khoom uas muaj qhov loj rau kev siv nyob rau hauv ntau xyoo. Cov neeg kawm tuaj yeem tshem tawm qhov loj rau kev kho, vim tias cov rooj nyob ntau heev thiab tsis xav tau kev kho ntau. Thaum kawg, pigment tsim los ntawm iron oxide thiab cement yog qhov kev xaiv zoo rau cov neeg uas xav muab qhov zoo thiab qhov nyab saum qhov kev tsim kho rau lawv.
Kev xaiv cov pigment iron oxide tseem ceeb rau lub project yog li yuav tsum ua qhov yuam kev, tab sis tsis tas li ntawd, thiab yuav tsum muaj qhov kev xaiv ntau yam tsiag. Thaum kawg, xyuam xim rau cov duab uas yuav txaus siab koj. Cov project sib txawv yuav tsum muaj cov duab sib txawv, yog li qhov tseem ceeb yog paub txog qhov duab uas koj xav tau. Muaj ntau duab—Nyob rau Runhuabang, muaj ntau duab uas yuav pab koj nrhiav tau cov duab zoo tshaj plaws uas sib npog rau koj lub tsev lossis lub project. Ob, xyuam xim rau qhov tseem ceeb ntawm koj lub project. Yog koj nyob hauv tsev, koj yuav tsum xaiv cov pigment uas tuaj yeem tswj qhov roob thiab qhov kub ntawm lub ntiaj teb. Yuav muaj ntau duab uas yuav zoo heev rau ntau qhov chaw thiab qhov kub roob, uas ib qho yog qhov kub thiab qhov kub los ntawm qhov taub, thiab lwm qhov yog qhov zoo heev rau cov chaw uas muaj dej roob heev. Koj kuj yuav tsum xyuam xim rau qhov ntev ntawm cov pigment uas koj yuav tsum xav tau. Qhov ntev no yuav sib txawv raws li cov khoom uas koj yuav siv. Tsis tas li ntawd, koj yuav tsum nug leej twg yog koj tsis paub! Cov neeg tuaj yeem pab ntawm Runhuabang yog ua kom muaj nyob rau hauv qhov sib txawv ntawm lub sijhawm. Koj kuj yuav tsum xyuam xim rau qhov quality ntawm cov pigment. Yog tias cov pigment zoo heev yuav muaj ntau dua, tab sis lawv yuav ua haujlwm zoo heev thiab yuav nyob ntev heev. Thaum kawg, tab sis tsis tshwj xeeb, koj yuav tsum xyuam xim rau koj lub budget. Muaj ntau yam khoom uas yuav muaj ntau qhov ntev ntawm cov ntaub ntawv. Yog li qhov tseem ceeb yog nrhiav tau qhov sib npog zoo tshaj plaws ntawm quality thiab cov ntaub ntawv, thiab xaiv qhov yuav tshwm sim rau koj lub project. Yog li, thaum koj xyuam xim rau cov qhov no, koj yuav tsum xaiv cov pigment iron oxide uas yuav pab koj lub tsev muaj duab sib txawv thiab yuav tsis puv tawm lub budget.
Yog nyob rau hauv cov kev ua haujlwm zoo tshaj plaws rau ob qhov: ntxuav nqis cov dej ntawm lub tsev thiab ua kom cov dej ntawm lub tsev zoo dua, cov khoom no tuaj yeem sib xyaw nrog cov khoom ua haujlwm ntawm ferric oxide. Yog peb pib los txhawb txog yuav li cas ua rau cov khoom no yog tshwj xeeb heev. Cov lias ntawm ferric oxide yog los ntawm cov khoob tshiab ntawm lub vaj tsaug. Raws li ntawd, lawv tuaj yeem muab cov lias zoo rau cov khoom thiab tsis ua rau puas qhov chaw. Thaum peb xyaw cov lias ntawm ferric oxide rau hauv cov dej ntawm lub tsev, lawv tau sib xyaw rau hauv cov dej ntawm lub tsev. Qhov no txhawb kom cov dej ntawm lub tsev zoo dua thiab tsis siv nyob rau hauv qhov chaw thiab qhov roj thiab tsoos. Cov dej ntawm lub tsev yog siv rau ntau yam — rau lub ceg, rau lub tsev thiab rau lub rooj, yog li lawv yuav tsum nyob ntev. Runhuabang tuaj yeem muab cov lias ntawm ferric oxide uas nyob ntev rau qhov no. Cov lias ntawm ferric oxide kuj muaj cov lias zoo thiab tsis siv nyob rau hauv qhov roj. Qhov no pab kom cov tsev thiab cov rooj nyob ntev thiab zoo rau ntau xyoo. Ntawd li, kev siv cov lias no tuaj yeem txog rau kev tshem tawm kev ua siab rau kev suav nrog, uas pab koj tshem tawm kev xaiv ntau. Cov neeg ua tsev tuaj yeem paub tias cov tsev uas lawv ua yog zoo thiab zoo rau ntev thaum lawv xaiv cov lias ntawm ferric oxide los ntawm Runhuabang.
Yog li, thiaj li peb yuav pab los txhawb nqa cov kev sib txuas ntawm kev siv cov khoom tso cua hluav taws xob rau hauv kev kho thiab qhov chaw. Cov khoom tso cua hluav taws xob rau hauv kev kho thiab qhov chaw yog qhov tshiab tshaj plaws uas cov khoom tso cua no tau siv. Tsoom neeg nyob hauv no tsis nyob heev rau kev siv cov khoom tso cua hluav taws xob rau hauv kev kho thiab qhov chaw; lawv xav tau cov khoom tso cua hluav taws xob uas muaj qhov zoo dua rau lawv cov rooj tsis thiab cov rooj tawm, yog li lawv tsis siv cov khoom tso cua hluav taws xob uas muaj qhov xav tsis zoo dua li. Cov khoom tso cua hluav taws xob tuaj yeem siv rau kev siv cov khoom tso cua hluav taws xob uas muaj qhov siab dua — peb txhawb nqa cov khoom tso cua hluav taws xob uas muaj qhov siab dua, cov khoom tso cua hluav taws xob uas muaj qhov siab dua, thiab cov khoom tso cua hluav taws xob uas muaj qhov siab dua! Qhov tshiab tshaj plaws yog kev siv cov khoom tso cua hluav taws xob rau hauv kev kho thiab qhov chaw uas muaj kev sib txuas rau qhov chaw. Cov thawj coj kev kho thiab qhov chaw nyob hauv no tau sib txuas los nrhiav qhov kev siv cov khoom tso cua hluav taws xob uas muaj kev sib txuas rau qhov chaw. Nrog cov khoom tso cua hluav taws xob ntawm Runhuabang, cov thawj coj kev kho thiab qhov chaw tuaj yeem kho cov concrete uas muaj qhov siab dua thiab zoo rau qhov chaw. Cov khoom tso cua hluav taws xob no kuj tau txhawb nqa rau kev siv rau hauv kev ua haujlwm ntawm cov lus qhia thiab cov lus qhia. Thiab cov thawj coj kev kho thiab qhov chaw thiab cov thawj coj kev ua haujlwm nyob hauv no tau ua cov concrete uas muaj qhov siab dua thiab muaj qhov siab dua rau hauv cov duab thiab cov duab. Ntawd yog qhov kev sib txuas ntawm kev ua haujlwm rau hauv qhov chaw. "The Park" (Viking), uas muaj cov lus thiab cov duab los ntawm Dave Eggers, yog qhov kev sib txuas rau hauv qhov chaw uas muaj cov duab thiab cov duab uas muaj qhov siab dua; tab sis los ntawm cov qhov siab dua uas muaj hauv cov duab, tsis matter yog cov neeg tsis muaj chaw nyob, lawv kuj muaj qhov siab dua thiab muaj qhov siab dua. Qhov kev sib txuas no qhia tias cov khoom tso cua hluav taws xob nyob hauv no tsis yog qhov tseem ceeb rau kev siv, tab sis kuj yog qhov tseem ceeb rau kev ua haujlwm.
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