nkhani

Kuchokera pamalingaliro a ntchito ya konkriti admixtures, tikhoza kusiya gulu ndipo makamaka kukhudza zinthu zinayi. Kudzera kugwiritsa ntchito admixtures zogwirizana, tikhoza kumaliza kulamulira konkire rheological liwiro. Kuchokera pakuwona kugwiritsa ntchito mitundu yosiyanasiyana ya konkriti admixtures, zotsatira zake zimakhalanso zosiyana. Kenako, opanga konkriti admixtures amagawana kutsata konkriti admixtures.

Zina mwa izo, ntchito yayikulu ya mpweya wothandizira ndikuchepetsa kumwa madzi pakukonza, kupatsa konkriti yokhala ndi kachulukidwe kabwinoko komanso zotanuka, ndikuwongolera kukhazikika kwake.

Kutsata ndi Kusintha kwa1 

The mpweya-entraining wothandizila ndi kusiya kulimbikitsa solubility wa otsika konkire, ndi kumaliza kulamulira ming'alu mkati ndi mosalekeza kukhathamiritsa permeability mwa ogwira kusinthidwa konkire kapangidwe mkati.

Kuphatikiza apo, ntchito zambiri za konkriti zimakhala ndi zofunika kwambiri pakusakwanira. Anthu ayenera kukwaniritsa zofunikira zomanga pogwiritsa ntchito mpweya wothamanga kwambiri kuti apititse patsogolo kachulukidwe wa konkire. Kuwonjezera apo, kulimbitsa konkire kumakhala kosavuta kuwononga, ndipo ogwira nawo ntchito amatha kulamulira carbonation mlingo wa konkire mothandizidwa ndi kugwiritsa ntchito mpweya wothandizira.Ngati pH mtengo mu konkire ikuwonetsa kutsika, vuto la dzimbiri lolingana lachitsulo lidzatetezedwanso pamlingo waukulu.

Chifukwa cha mitundu yosiyanasiyana, kusankha kosakaniza konkire kudzawonetsanso kusiyana koonekeratu. Pofuna kusonyeza zotsatira zogwira ntchito, ogwira ntchito ayenera kusiya kulamulira koyenera kwa chiwerengero cha admixtures kupyolera mu makhalidwe osiyanasiyana a konkire, ndikukhalabe ndi kusintha kwabwino kwa ntchito ya konkire yokha. Pakati, wothandizira madzi kuchepetsa ndi konkire admixture kuti akhoza kuchepetsa kusakaniza kumwa madzi pansi pa chikhalidwe kuti slump konkire kwenikweni sasintha. Pambuyo powonjezera konkriti osakaniza, akhoza kumwazikana particles simenti, kusintha workability, kuchepetsa unit madzi kumwa, ndi kusintha fluidity wa osakaniza konkire; Kapena chepetsani kugwiritsa ntchito simenti kuti mupulumutse simenti.


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  • Nthawi yotumiza: Mar-28-2023