Nyengo Yozizira
M'nyengo yozizira, kutsindika kumayikidwa pa kupewa kuzizira kwa ana aang'ono ndikuwongolera kutentha kwapakati panthawi yochiritsa kuti kulimbikitsa kukula kwa mphamvu. Kuwongolera kutentha kwapansi pakuyika ndi kuchiritsa kwa topping slab kungakhale chinthu chovuta kwambiri chokhudzana ndi kuzizira kwanyengo.
M'munsi mwa slab ukhoza kukhala wolemera kwambiri kuposa topping slab. Chotsatira chake, kutentha kwa maziko a slab kudzakhala ndi mphamvu yaikulu pa kuika topping slab. Topping slabs sayenera kuikidwa pazitsulo zozizira kwambiri chifukwa kutentha kwa maziko kumatulutsa kutentha kutali ndi kusakaniza kwatsopano.

M'nyengo yozizira chotenthetsera chotulutsa mpweya chiyenera kukhala kunja kwa nyumbayo panthawi yoyika pamwamba.
Malingaliro amakampani ndikuti slab yoyambira iyenera kusungidwa kutentha kosachepera 40 F pakuyika ndi kuchiritsa topping kulimbikitsa hydration, kukulitsa mphamvu, komanso kupewa kuzizira kwaubwana. Ma cooler base slabs atha kuchedwetsa kusakaniza kwa topping, kutalikitsa nthawi yokhetsa magazi ndikumaliza ntchito. Izi zithanso kupangitsa kuti pamwamba pakhale zovuta zina zomaliza monga shrinkage ya pulasitiki ndi kutumphuka pamwamba. Ngati n'kotheka, timalimbikitsa kutenthetsa pansi kuti muteteze kuzizira komanso kuti mukhale ovomerezeka.
Zosakaniza zozizira za nyengo yozizira zimatha kupangidwa kuti zithandizire kuthana ndi kutentha kozungulira komanso kwapansi pa nthawi yokhazikitsa. Bwezerani simenti yowongoka pang'onopang'ono ndi simenti yowongoka, gwiritsani ntchito simenti ya Type III, ndipo gwiritsani ntchito zosakaniza zofulumizitsa (ganizirani kuchuluka kwa mlingo pamene kuyikako kukupita patsogolo kuti mukhalebe ndi nthawi yokhazikika).
Kuwongolera chinyezi pamalo okonzedwa musanayike kungakhale kovuta m'nyengo yozizira. Kunyowetsa m'munsi sikovomerezeka ngati kuzizira kukuyembekezeka. Zokongoletsera zambiri, komabe, zimamangidwa pama slabs omwe alipo pomwe nyumbayo imamangidwa ndikutsekedwa. Choncho, kuwonjezera kutentha kumalo kumene kuyika pamwamba pake kumakhala kovuta kwambiri kusiyana ndi momwe zimakhalira panthawi yomanga superstructure ndi base slab.
Mofanana ndi kunyowetsa m'munsi, kuchiritsa konyowa kuyeneranso kupewedwa ngati kuzizira kukuyembekezeka. Komabe, toppings zoonda zomangika zimakhudzidwa kwambiri ndi kuyanika koyambirira pomwe mphamvu ya mgwirizano ikukula. Ngati chomangira chomangirira chiwuma ndikuchepera isanakhazikitse mphamvu zokwanira zomangira m'munsi, mphamvu zometa ubweya zimatha kupangitsa kuti nsongayo iwonongeke kuchokera pansi. Pamene delamination ichitika ali aang'ono, kukweza sikungakhazikitsenso mgwirizano ku gawo lapansi. Choncho, kupewa kuyanika koyambirira ndi chinthu chofunika kwambiri pomanga zomangira zomangira.