Ngwọta mgbawa ihe na-akpata ụfụfụ na nkwụsịtụ

The shrinkage, mgbawa na mmịnye mmiri nke sink foamed bụ nsogbu atọ nwere njikọ chiri anya.N'ikwu okwu n'ozuzu, konkịtị na-afụ ụfụfụ n'ihi adịghịkwa mma n'oge na-arụzi ya, Usoro nchekwa mmiri ezughị oke ma ọ bụ na usoro eji eme ihe na-esiwanye ike karị, ga-eme ka mmiri dị n'ime ya pụta, na-ebute mbelata olu, cracking ma ọ bụ ịrịba mmiri absorption.Na ụfụfụ ihe absorbs mmiri nke ukwuu na-enwe ike ibelata okpomọkụ ichekwa okpomọkụ mkpuchi mmetụta ọzọ.Site na usoro nkwadebe nke ụfụfụ ihe na-ahụ anya na nyocha na akụkụ nke ahụ siri ike, a na-achọpụta na ọtụtụ oghere ndị dị na konkịtị foamed bụ oghere mechiri emechi nke nwere onwe ya. Ya mere, a na-awụnye ihe na-ekpo ọkụ nke ọma nke ọma na mmiri, na ntinye mmiri ya na-etinyekarị n'ime oyi akwa elu, ma ọ nweghị nnukwu mmịnye mmiri.Isi ihe na-emetụta shrinkage, cracking na mmiri absorption nke ihe foamed bụ ndị a:

1. Mmetụta nke usoro ciment

Na usoro nke hydration na hardening, olu siri ike nke ciment Portland nkịtị na-abawanye, mgbe simenti + usoro mmiri na-ebelata.Nke abuo, usoro hydration nke ciment na-esonyekwa na mmetụta thermal, na-eme ka mgbasawanye olu nke mbụ na oyi na mbelata, na-ebute mmụba nke mbelata pụtara ìhè.Na mgbakwunye, enwere ihe na-eme onwe ya – mbelata nke sitere na mmịnye mmiri na usoro nke ciment hydration.Ya mere, n'izugbe, ma ọ bụrụ na ọnọdụ ndị ọzọ bụ isi otu, ọnụ ọgụgụ nke ciment na-abawanye, mbelata nke ụfụfụ ihe ga-abawanye otú ahụ.Simenti bụkwa otu n'ime ihe ndị dị mkpa iji hụ na ike dị, ya mere enwere usoro nke ciment nke dabara adaba.

2. Mmetụta nke ụdị ciment

Ọ bụghị ciment niile tupu na mgbe ike nke olu na-ebelata, mgbasawanye nke ciment tupu na mgbe ikesi ike nke olu abụghị nkwụsị ma gbasaa.Ya mere, ma ọ bụrụ na a nakweere simenti mgbasawanye kwesịrị ekwesị, Enwere ike ịkwụ ụgwọ ma ọ bụ belata n'ozuzu shrinkage nke ihe na-afụ ụfụfụ ruo n'ókè ụfọdụ.Agbanyeghị, ciment gbasaa ọ bụghị naanị na-emetụta mgbanwe olu, ma na-emetụtakwa usoro nke ihe ndị ọzọ, oke iwebata ga-emebi ihe owuwu nke ụfụfụ siri ike, ya mere a ghaghị ikpebi ụdị dị iche iche na usoro nke ciment mgbasawanye site na ule.

3. Mmetụta nke mkpokọta

Kọnkịta gbapụtara ụfụfụ enwere ike ịgwakọta ya na akụkụ nke ezigbo mkpokọta, n'ihi kemịkalụ inertia nke mkpokọta, Ịgwakọta oke ga-eduga na mbelata dị ukwuu na ike nke ụfụfụ, ya mere ọdịnaya ya na-ejedebe ruo n'ókè ụfọdụ.Mgbe njupụta, mmiri-ciment ruru na ndị ọzọ na nkà na ụzụ paramita nke foamed ihe bụ isi kpebisiri ike, ọnụ ọgụgụ nke ciment ga-ebelata ka mma nchịkọta na-abawanye. Ya mere, enwere nhọrọ kwesịrị ekwesị n'etiti ma ị ga-agwakọta mkpokọta ma ọ bụ na ọ bụghị yana ole.

4. Mmetụta nke mmiri-ciment ruru na usoro nchekwa

The ịkpụzi mmiri-ciment ruru nke ụfụfụ ihe bụ mgbe dị ka elu dị ka 0.7 ma ọ bụ ọbụna 0.8, na ngafe mmiri ga-anọgide na pores nke siri ike ụfụfụ ihe, nke mere ihe gbasara ya 50% nke mmiri ịkpụzi.Mgbe oke iru mmiri dị ala ma ọ bụ ọnọdụ okpomọkụ dị elu, mmiri na-ekupụ ma gbapụ.Karịsịa na mmalite ogbo nke hardening, Ọdịdị nke ihe na-afụ ụfụ ka na-adịghị ike, ọ bụrụ na mmezi adịghị mma, ọnwụ mmiri dị oke mfe, na-eduga na mbelata ka ukwuu na mgbawa elu, eme ka ahụ dị n'ime ahụ ghara ịdị ike, na-eduga na mmiri dị elu nke mmiri ụfụfụ siri ike.Ya mere, nke mbụ mmiri-ciment ruru nke ihe foamed na-aghọ ihe mgbochi maka mbelata nke ihe siri ike nke ụfụfụ..Otu n'ime usoro ndị dị mkpa maka ịkwadebe ihe ntanye nke ụfụfụ dị ala bụ ịchịkwa oke ciment mmiri dị ala.

5. Usoro nka na ụzụ iji belata mbelata na mgbawa nke ihe nke nwere ụfụfụ

Dị ka nyocha dị n'elu, usoro teknụzụ iji belata shrinkage, igbochi mgbawa na mmịnye mmiri nke ụfụfụ nke gụnyere akụkụ ndị a:

(1) usoro ciment kwesịrị ekwesị;

(2) tinye ciment mgbasawanye kwesịrị ekwesị;

(3) obere ịkpụzi mmiri-ciment ruru;

(4) kwalite usoro mmezi ma wusie ike nchekwa mmiri mbụ;

(5) jiri ihe na-egbochi mmiri (ngwakọta ma ọ bụ mkpuchi elu).

Cie-China.org bụ ndị na-eduga ụfụfụ ihe mgbakwunye na-enye ihe na-enye ihe na-emepụta ụfụfụ, superplasticizer,ụfụfụ ihe ike enhancer maka fechaa kọmpat, Ihe mgbochi CLC. Ọ bụrụ na ị na-achọ superplasticizer, biko nweere onwe gị kpọtụrụ anyị.