Gwiritsani ntchito calcium formate kuthetsa vuto la kuyika simenti ndi kuumitsa

Monga momwe mawu akuti, "katswiri akuyang'ana pakhomo, munthu wamba akuyang'ana gulu la anthu", mphamvu yoyambirira ya simenti imakula mofulumira, mphamvu yapambuyo pake imakula pang'onopang'ono, ngati kutentha ndi chinyezi zili zoyenera, mphamvu zake zimatha kukula pang'onopang'ono. zaka zingapo kapena zaka khumi. Tiyeni tikambirane za ntchito calcium formatekuthetsa vuto la kuyika simenti ndi kuumitsa.

Kukhazikitsa nthawi ndi chimodzi mwazinthu zofunikira kwambiri za simenti

(1) Kuthira kwa simenti kumachitika pang'onopang'ono kuchokera pamwamba kupita mkati. Ndi kupitiriza kwa nthawi, mlingo wa hydration wa simenti ukuwonjezeka, ndipo hydration mankhwala akuchulukirachulukira ndi kudzaza capillary pores, amene amachepetsa porosity wa capillary pores ndipo mofanana kumawonjezera porosity wa gel osakaniza pores.

Calcium formate akhoza kuonjezera ndende ya Ca 2+ mu madzi gawo, imathandizira kusungunuka mlingo wa kashiamu silicate, ndi co-ionic tingati imathandizira crystallization, kuonjezera gawo la olimba gawo mu matope, amene amathandiza mapangidwe simenti. kapangidwe ka miyala.

Kubalalitsidwa ndi mamasukidwe akayendedwe acalcium formate mu matope anaphunziridwa mwa kusanthula maonekedwe ake, fineness, zinthu formate ndi kusungunuka m'madzi ozizira. Makhalidwe a calcium formate mankhwala ndi mphamvu ya mgwirizano mu pulasitala matope anayesedwa ndi kufaniziridwa.

kutentha

(2) Kutentha kumakhudza kwambiri kukhazikitsa ndi kuuma kwa simenti. Kutentha kumawonjezeka, mphamvu ya hydration imathamanga, ndipo mphamvu ya simenti imakula mofulumira. Kutentha kumachepa, hydration imachepetsa ndipo mphamvu imawonjezeka pang'onopang'ono. Pamene kutentha kuli pansi pa 5℃, kuuma kwa hydration kumachepetsedwa kwambiri. Pamene kutentha kuli pansi pa 0℃, hydration reaction kwenikweni imayima. Nthawi yomweyo, chifukwa cha kutentha pansi pa 0° C, madzi akaundana, amawononga mwala wa simenti.

Pa kutentha otsika, zotsatira zacalcium formateamatchulidwa kwambiri.Calcium formatendi latsopano kutentha otsika ndi oyambirira mphamvu coagulant anayamba ku China, ndi katundu thupi la calcium formatendi okhazikika pa firiji, si kophweka agglomerate, oyenera ntchito mu matope.

chinyezi

(3) Mwala wa simenti m'malo achinyezi umatha kusunga madzi okwanira kuti azitha kukhazikika komanso kukhazikika komanso kuumitsa, ndipo ma hydration opangidwa amadzaza ma pores ndikulimbikitsa mphamvu ya mwala wa simenti. Njira zosungira kutentha ndi chinyezi cha chilengedwe, kuti mphamvu ya miyala ya simenti ipitirire kukula, imatchedwa kukonza. Pozindikira mphamvu ya simenti, iyenera kuchiritsidwa mpaka zaka zomwe zafotokozedwa munyengo yodziwika bwino ya kutentha ndi chinyezi.

Calcium formateoyambirira mphamvu wothandizira ndi konkire oyambirira mphamvu wothandizira ndi osiyanasiyana ntchito ndi zotsatira zabwino. Chiwerengero chachikulu cha maphunziro experimental atsimikizira kuti ntchito kashiamu formate oyambirira mphamvu wothandizila ali ndi zotsatira kwambiri pa kufupikitsa nthawi yoika ndi kuwongolera oyambirira mphamvu konkire, komanso angathe kuteteza kuzizira kuwononga konkire pansi otsika kutentha.