Tsiku Lotumiza: 5, Sep, 2022

Zotsatira za wothandizira kuchepetsa madzi pakuphwanyidwa kwa konkire yamalonda:

A madzi kuchepetsa wothandizira ndi admixture kuti akhoza kuwonjezeredwa pa ndondomeko konkire kusakaniza kwambiri kuchepetsa kapena kuchepetsa kwambiri konkire kusakaniza madzi, kusintha fluidity wa konkire, ndi kuonjezera mphamvu ya konkire. Zochita zatsimikizira kuti mutatha kuwonjezera madzi ochepetsera ku konkire, ngati palibe chifukwa chowonjezera mphamvu, kuchuluka kwa simenti kumatha kuchepetsedwa kwambiri, ndipo kusakanikirana kwa konkire kumatha kusintha. Chifukwa chake, chochepetsera madzi ndi chinthu chofunikira chowonjezera mu konkriti yamalonda.

Pofuna kupititsa patsogolo phindu lazachuma la konkire yamalonda, opanga konkire amakonda kugwiritsa ntchito zochepetsera madzi ndi katundu wochepetsera madzi kuti apititse patsogolo mphamvu ya konkire kapena kuchepetsa kwambiri simenti ndi kuchepetsa ndalama zopangira. Ndipotu uku ndiko kusamvetsetsana kwakukulu. Ngakhale kuchepetsa madzi kumapindulitsa kupititsa patsogolo mphamvu yopondereza ya konkire, kuchepetsa madzi ochulukirapo kudzasokonezanso mphamvu yosinthika ya konkire. Ngakhale kuti kuchepetsa koyenera kwa madzi kumapindulitsa kuchepetsa kuchepa kwa konkire, ziyenera kudziwika kuti popanga chiŵerengero chosakanikirana cha konkire, ntchito yochepetsera madzi yowonjezera madzi ochepetsera madzi yaganiziridwa, ndipo madziwo amapangidwa. -Binder ratio nthawi zambiri imapangidwa kuti ikhale yotsika. Kumwa madzi kudzawonjezera kuyanika kwa konkire ndikuwonjezera kutsika kwa konkriti.

Ngakhale mphamvu yopondereza ya konkire yamalonda simachepa pamene simenti yachepa kwambiri, mphamvu yachitsulo imachepa ndi kuchepa kwa mphamvu ya miyala ya simenti yolimba mu konkire. Chifukwa cha kuchepa kwa simenti, gawo la konkire la simenti ndilochepa kwambiri, ndipo ming'alu yaying'ono imachitika mu konkire. Zoonadi, ming'alu yaying'ono imakhala ndi zotsatira zochepa pa mphamvu yopondereza ya konkire, koma chikoka pa mphamvu zowonongeka ndi zinthu zina za konkire sizingathe kuchepetsedwa. Kuchepetsa kwakukulu kwa zida za simenti kudzakhudzanso zotanuka modulus ndi kukwapula konkriti, zomwe zimapangitsa kuti konkire ikhale yosavuta kusweka.

Kufotokozera mwachidule, popanga konkire yamalonda, mlingo wochepetsera madzi wa konkire ndi kuchuluka kwa zipangizo za simenti ziyenera kuganiziridwa bwino, ndipo palibe kuchepetsa madzi opanda malire kapena kuchepetsa kwambiri zinthu za simenti kumaloledwa.