Kwanan Wata:17,Jul,2023

Mafi na kowa bayan gini matsalolin na ciki bango putty foda ne peeling da whitening. Don gane dalilan da peeling na ciki bango putty foda, shi wajibi ne don fara fahimtar asali albarkatun kasa abun da ke ciki da kuma curing ka'idar na ciki bango putty foda. Sa'an nan kuma, dangane da bushewa, shayar da ruwa, zafin jiki, da bushewar yanayin bangon lokacin gina ginin, gano manyan dalilan da ke haifar da peeling na cikin bangon putty foda da amfani da hanyoyin da suka dace don magance matsalar peeling.

一, Basic albarkatun kasa abun da ke ciki na ciki bango putty foda:

Abubuwan da suka fi dacewa na ciki bango putty foda sun hada da: inorganic bonding material (gray calcium), fillers (nauyin calcium foda, talcum foda, da dai sauransu), da kuma polymer Additives (HPMC, polyvinyl barasa, roba foda, da dai sauransu.). Daga cikin su, ciki bango putty foda gabaɗaya baya ƙara farin siminti ko kawai ƙara ɗan farin siminti. Redispersible latex foda yana da ɗan tasiri a ƙananan sashi, don haka ba a yi amfani da shi a cikin bango na ciki ba saboda matsalolin farashi ko kuma ba a yi amfani da shi ba.

Saboda haka saboda batun tare da dabarar ciki bango putty foda kanta:

1. Inorganic bonding kayan, kamar ƙananan ƙari na alli mai launin toka da ƙarancin ingancin calcium mai launin toka;

2. Ƙarin abubuwan haɗin gwiwa a cikin abubuwan da suka shafi polymer waɗanda ba su da yawa ko kuma ba su dace da ka'idodin inganci ba na iya haifar da faɗuwar bangon bangon ciki.

二, Curing inji na ciki bango putty foda:

The curing na ciki bango putty foda yafi dogara a kan synergistic sakamako na lemun tsami alli foda, HPMC da sauran polymer Additives karkashin wetting yanayi don ƙarfafa, samar da wani fim, da kuma tabbatar da curing tsari.

Ka'idar hardening na launin toka foda:

Drying da hardening: A lokacin aikin gogewa, ruwa mai yawa yana ƙafewa daga foda mai launin toka mai launin toka, yana samar da babban hanyar sadarwa na pores iri ɗaya a cikin slurry. Ruwan da ya rage a cikin pores, saboda tashin hankali na ruwa, yana haifar da matsa lamba na capillary, yin launin toka mai launin toka mai launin toka, don haka samun ƙarfi. Lokacin da slurry ya kara bushewa, wannan tasirin kuma yana ƙarfafa. Crystallization hardening: Sosai tarwatsa colloidal barbashi a cikin slurry an rabu da yada Layer tsakanin barbashi. Yayin da abun cikin ruwa ya ragu a hankali, layin yaduwa yana raguwa a hankali, don haka ƙwayoyin colloidal suna manne da juna a ƙarƙashin aikin sojojin kwayoyin halitta, suna samar da hanyar sadarwa ta sararin samaniya na sassauƙa, don haka samun ƙarfi. Carbon hardening: The slurry shan CO2 gas daga iska, forming calcium carbonate wanda a zahiri insoluble a cikin ruwa. Ana kiran wannan tsari carbonation of slurry. Abubuwan haɗin gwiwar sun kasance kamar haka:

Ca(OH)2+CO2+H2O→CaCO3+(n+1)H2O

Lu'ulu'u na calcium carbonate da aka samar suna zama tare da juna ko tare da barbashi na calcium hydroxide, suna samar da hanyar sadarwa mai haɗaka ta kristal, don haka inganta ƙarfin slurry. Bugu da kari, saboda dan kadan ƙara m girma na alli carbonate idan aka kwatanta da calcium hydroxide, da taurare launin toka alli foda slurry o ƙarin tabbatar da zama mafi m. 3. Bayan an yi amfani da foda a bango, ruwan da ke cikin abin da ake sakawa yana ɓacewa ta hanyoyi uku:

Ruwan ƙanƙara a saman ma'auni lokacin da alli mai launin toka da farin siminti ke amsawa a cikin abin da ke shayar da foda na ainihin bangon bango. 3. Tasirin abubuwan ginawa akan zubar da foda na putty foda:

Dalilan asarar foda da aka yi ta hanyar gini sun haɗa da: yanayin kulawa mara kyau yana sa putty ya bushe da sauri kuma ba shi da isasshen ƙarfi; Babban bangon bango ya bushe sosai, yana haifar da putty don rasa ruwa da sauri; Yawan kauri na putty a cikin tsari guda.