Udindo wa zida za konkire zochiritsa nthunzi
Panthawi yomanga m'nyengo yozizira, kutentha kumakhala kochepa ndipo mpweya umauma. Konkire imauma pang'onopang'ono ndipo mphamvu zimakhala zovuta kukwaniritsa zofunikira. Kuuma kwa zinthu za konkriti popanda kuchiritsa nthunzi sikuyenera kukumana ndi muyezo. Kugwiritsa ntchito machiritso a nthunzi kuti apititse patsogolo mphamvu ya konkriti kumatha kukwaniritsidwa pazifukwa ziwiri izi:
1. Pewani ming'alu. Kunja kukatentha mpaka kuzizira kwambiri, madzi a konkire amaundana. Madzi akasandulika kukhala ayezi, voliyumu idzakula mofulumira m'kanthawi kochepa, zomwe zidzawononge mapangidwe a konkire. Nthawi yomweyo, nyengo imakhala youma. Pambuyo konkire kuumitsa, izo Ming'alu adzapanga ndi mphamvu mwachibadwa kufooka.
2. Konkire nthunzi mankhwala ali ndi madzi okwanira hydration. Ngati chinyezi pamwamba ndi mkati mwa konkire chiuma mofulumira kwambiri, zidzakhala zovuta kupitiriza hydration. Kuchiritsa nthunzi sikungotsimikizira kutentha komwe kumafunikira kuumitsa konkire, komanso kunyowetsa, kuchepetsa kutuluka kwa madzi, komanso kulimbikitsa mphamvu ya hydration ya konkire.
Momwe mungachiritsire nthunzi ndi nthunzi?
Mu kuchiritsa konkire, limbitsani kuwongolera kwa chinyezi ndi kutentha kwa konkire, kuchepetsa nthawi yowonekera kwa konkire yapamtunda, ndikuphimba pamwamba pa konkriti mwamphamvu munthawi yake. Ikhoza kuphimbidwa ndi nsalu, mapepala apulasitiki, ndi zina zotero kuti zisawonongeke. Asanayambe kuchiritsa konkire poyera zoteteza pamwamba wosanjikiza, chophimba ayenera kukulunga pamwamba ndi pamwamba ayenera kuzitikita ndi wothinikizidwa ndi pulasitala osachepera kawiri kuti kusalaza ndi kuphimba kachiwiri.
Panthawiyi, chisamaliro chiyenera kutengedwa kuti chophimbacho sichiyenera kukhudzana mwachindunji ndi konkire mpaka konkire itachiritsidwa. Pambuyo kuthira konkire, ngati nyengo ikutentha, mpweya umakhala wouma, ndipo konkire siinachiritsidwe pakapita nthawi, madzi a konkire amatuluka mofulumira kwambiri, zomwe zimapangitsa kuti madzi asamawonongeke, kotero kuti particles za simenti zomwe zimapanga gel sizingathe kulimbitsa thupi lonse. madzi ndipo sangathe kuchiritsidwa.
Kuonjezera apo, pamene mphamvu ya konkire ili yosakwanira, kutuluka msanga kwa nthunzi kumatulutsa mapindikidwe akuluakulu a shrinkage ndi ming'alu ya shrinkage. Choncho, ndikofunika kwambiri kugwiritsa ntchito jenereta ya konkire yochiritsa nthunzi kuti muchiritse konkire kumayambiriro kwa kuthira. Konkire iyenera kuchiritsidwa mwamsanga pamene mawonekedwe omaliza apangidwa ndipo konkire yowuma iyenera kuchiritsidwa mwamsanga mutatha kuthira.