Tsiku Lotumiza: 16, Oct, 2023
Mawu akuti simenti, konkire, ndi matope amatha kusokoneza kwa omwe angoyamba kumene, koma kusiyana kwakukulu ndikuti simenti ndi ufa wabwino kwambiri (wosagwiritsidwa ntchito pawokha), matope amapangidwa ndi simenti ndi mchenga, ndipo konkriti amapangidwa simenti, mchenga, ndi miyala. Kuphatikiza pa zosakaniza zawo zosiyana, ntchito zawo zimakhalanso zosiyana kwambiri. Ngakhale amalonda omwe amagwira ntchito ndi zipangizozi tsiku ndi tsiku akhoza kusokoneza mawuwa m'chinenero chodziwika bwino, monga simenti nthawi zambiri amagwiritsidwa ntchito kutanthauza konkire.
Simenti
Simenti ndi mgwirizano pakati pa konkriti ndi matope. Nthawi zambiri amapangidwa ndi miyala yamchere, dongo, zipolopolo ndi mchenga wa silika. Zinthuzo zimaphwanyidwa kenako n’kuzisakaniza ndi zinthu zina, kuphatikizapo chitsulo, kenako n’kutenthedwa mpaka kufika madigiri seshasi 2,700. Zinthu zimenezi, zomwe zimatchedwa clinker, amazipera kukhala ufa wosalala.
Mutha kuwona simenti yomwe imatchedwa Portland simenti. Zili choncho chifukwa idapangidwa koyamba ku England m'zaka za zana la 19 ndi Leeds meson Joseph Aspdin, yemwe adafanizira mtunduwo ndi miyala ya miyala ya pachilumba cha Portland, pafupi ndi gombe la England.
Masiku ano, simenti ya Portland ikadali simenti yomwe imagwiritsidwa ntchito kwambiri. Ndi simenti ya "hydraulic", zomwe zimangotanthauza kuti imayika ndikuuma ikaphatikizidwa ndi madzi.
Konkire
Padziko lonse lapansi, konkire imagwiritsidwa ntchito nthawi zambiri ngati maziko olimba ndi zomangamanga pafupifupi nyumba iliyonse. Ndizopadera chifukwa zimayambira ngati zosakaniza zosavuta, zowuma, kenako zimakhala zamadzimadzi, zotanuka zomwe zimatha kupanga nkhungu iliyonse kapena mawonekedwe, ndipo pamapeto pake zimakhala zolimba ngati mwala zomwe timazitcha konkire.
Konkire imakhala ndi simenti, mchenga, miyala kapena zinthu zina zabwino kapena zolimba. Kuphatikizika kwa madzi kumayambitsa simenti, yomwe ndi chinthu chomwe chimamangirira pamodzi kuti chikhale chinthu cholimba.
Mutha kugula zosakaniza za konkire zomwe zakonzedwa kale m'matumba omwe amasakaniza simenti, mchenga ndi miyala, zomwe muyenera kuchita ndikuwonjezera madzi.
Izi ndizothandiza pamapulojekiti ang'onoang'ono, monga mizati ya mpanda kapena zina. Kwa ntchito zazikulu, mutha kugula matumba a simenti ndikusakaniza ndi mchenga ndi miyala mu wheelbarrow kapena chidebe china chachikulu, kapena kuyitanitsa konkire yosakanikirana ndikuyipereka ndikutsanulira.
Tondo
Tondo amapangidwa ndi simenti ndi mchenga. Madzi akasakanizidwa ndi mankhwalawa, simenti imatsegulidwa. Ngakhale konkire ingagwiritsidwe ntchito yokha, matope amagwiritsidwa ntchito kugwirizanitsa njerwa, miyala, kapena zigawo zina zolimba. Kusakaniza kwa simenti, kotero, molondola, kumatanthauza kugwiritsa ntchito simenti kusakaniza matope kapena konkire.
Pomanga patio ya njerwa, matope nthawi zina amagwiritsidwa ntchito pakati pa njerwa, ngakhale pamenepa sagwiritsidwa ntchito nthawi zonse. M'madera akumpoto, mwachitsanzo, matope amang'ambika mosavuta m'nyengo yozizira, kotero kuti njerwa zimangokhalira kukakamirana, kapena kuwonjezera mchenga pakati pawo.
Nthawi yotumiza: Oct-16-2023
