I-Drymix Mortar isetshenziswa kabanzi futhi ingenye yezinto ezibalulekile kubunjiniyela besimanje bokwakha. Yakhiwe usimende, isihlabathi kanye nezixube. Usimende uyinsimbi eyinhloko kasimende. Namuhla ake sifunde kabanzi mayelana nezakhiwo eziyisisekelo ze-drymix mortar.
Udaka lokwakha: Yimpahla yokwakha elungiswe ngokufaka usimende, isamba esihle, ingxube namanzi ngezilinganiso ezifanele.
Udaka lwamatshe: Udaka olubopha izitini, amatshe, amabhulokhi, njll. lube ngamatshe lubizwa ngokuthi i-masonry mortar. I-masonry mortar idlala indima yokufaka usimende kanye nomthwalo wokudlulisa, futhi iyingxenye ebalulekile yokwakhiwa kwamatshe.
1. Izinto zokwakha ze-masonry mortar
(1) Izinto zikasimende nezixube
Izinto zikasimende ezivame ukusetshenziswa odakeni lwamatshe zifaka usimende, unamathisele we-lime, kanye ne-gypsum yokwakha.
Ibanga lamandla likasimende elisetshenziselwa udaka lwamatshe kufanele likhethwe ngokuvumelana nezidingo zokuklama. Izinga lamandla likasimende elisetshenziswa odakeni lukasimende akufanele libe ngaphezu kwama-32.5; izinga lamandla likasimende elisetshenziswa odakeni oluxutshwe usimende akufanele libe ngaphezu kwama-42.5.
Ukuze kuthuthukiswe ukusebenza kodaka futhi kuncishiswe nenani likasimende, okunye ukunamathisela kukasimende, udaka lobumba noma umlotha wempukane kuvame ukuxutshwa odakeni lukasimende, kanti udaka olulungiswa ngale ndlela lubizwa ngokuthi udaka oluxutshwe usimende. Lezi zinto akumele zibe nezinto eziyingozi ezithinta ukusebenza kodaka, futhi uma ziqukethe izinhlayiya noma ama-agglomerate, kufanele zihlungwe ngesisefo sembobo yesikwele esingu-3 mm. Impushana ye-lime ene-slaked akufanele isetshenziswe ngokuqondile odakeni lwamatshe.
(2) Ukuhlanganisa okuhle
Isihlabathi esisetshenziselwa udaka lwamatshe kufanele sibe isihlabathi esiphakathi nendawo, futhi ukwakhiwa kwemfucumfucu kufanele kube isihlabathi esimahhadla. Udaka esihlabathini akufanele ludlule u-5%. Ngodaka oluxutshwe nosimende olunezinga lamandla le-M2.5, okuqukethwe kodaka esihlabathini akufanele kudlule i-10%.
(3) Izimfuneko zezithasiselo
Njengokwengezwa kwama-admixtures kukhonkolo, ukuze kuthuthukiswe izakhiwo ezithile zodaka, izixube ezifana ne-plasticizing, amandla okuqala,i-cellulose ether, i-antifreeze, kanye ne-retading nakho kungangezwa. Ngokuvamile, izingxube ze-inorganic kufanele zisetshenziswe, futhi izinhlobo zazo nemithamo kufanele inqunywe ngokuhlolwa.
(4) Izidingo zamanzi odaka ziyefana nalezo zikakhonkolo.
2. Izakhiwo zobuchwepheshe zengxube ye-masonry mortar
(1) Uketshezi lodaka
Ukusebenza kodaka olugeleza ngaphansi kwesisindo salo noma amandla angaphandle kubizwa ngokuthi i-fluidity of mortar, ebizwa nangokuthi ukungaguquguquki. Inkomba ekhombisa ukugcwala kodaka yizinga lokucwila, elilinganiswa imitha yokuguquguquka kodaka, futhi iyunithi yalo ingu-mm. Ukukhethwa kokungaguquguquki kodaka kule phrojekthi kusekelwe ohlotsheni lwezimo zezulu zamatshe kanye nezimo zezulu zokwakha, ezingakhethwa ngokubhekisela kuThebula 5-1 (“Ikhodi Yokwakha Nokwamukelwa Kobunjiniyela Bamatshe” (GB51203-1998)).
Izici ezithinta uketshezi lodaka yilezi: ukusetshenziswa kwamanzi kodaka, uhlobo nenani lezinto zikasimende, ukuma kwezinhlayiyana kanye nokuhlukaniswa kweqoqo, imvelo kanye nomthamo we-admixture, ukufana kokuxuba, njll.
(2) Ukugcinwa kwamanzi kodaka
Ngesikhathi sokuthutha, ukupaka kanye nokusetshenziswa kodaka oluxubile, kuvimbela ukuhlukana phakathi kwamanzi nezinto eziqinile, phakathi kwe-slurry emihle ne-aggregate, futhi ikhono lokugcina amanzi ukugcinwa kwamanzi odaka. Ukwengeza inani elifanele le-microfoam noma i-plasticizer kungathuthukisa kakhulu ukugcinwa kwamanzi kanye nokumanzi kodaka. Ukugcinwa kwamanzi kodaka kukalwa imitha yodaka lwe-delamination, futhi kuvezwa nge-delamination (. Uma i-delamination inkulu kakhulu, kusho ukuthi udaka luthambekele ekuqhekekeni nasekuhlukaniseni, okungahambisani nokwakhiwa kanye nokuqina kukasimende. Idigri ye-delamination yodaka lwamatshe akumele ibe nkulu kuno-3 0mm Uma i-delamination incane kakhulu, imifantu eshwabene eyomisa ijwayele ukwenzeka, ngakho-ke ukuchithwa kodaka akufanele kube ngaphansi kuka-1 0mm.
(3) Ukubeka isikhathi
Isikhathi sokusetha sodaka lokwakha sizocutshungulwa ngokusekelwe ekungeneni kokumelana okufinyelela ku-0.5MPa. Udaka lukasimende akufanele ludlule amahora angu-8, futhi udaka oluxutshwe usimende akufanele ludlule amahora angu-10. Ngemuva kokungeza i-admixture, kufanele ihlangabezane nezidingo zokuklama nezokwakha.
3. Izakhiwo zobuchwepheshe zodaka lwamatshe ngemva kokuqina
Amandla okucindezela odaka asetshenziswa njengenkomba yawo yamandla. Usayizi wesampula ojwayelekile ungama-cubic specimens angu-70.7 mm, iqoqo lezibonelo ezingu-6, futhi isiko elijwayelekile lifika ezinsukwini ezingu-28, futhi isilinganiso samandla okucindezela (MPa) siyalinganiswa. I-Masonry mortar ihlukaniswe ngamamaki ayisithupha amandla ngokuya ngamandla acindezelayo: M20, M15, M7.5, M5.0, kanye ne-M2.5. Amandla odaka akuthintwa nje kuphela ukwakheka kanye nengxenye yodaka ngokwawo, kodwa futhi ahlobene nokusebenza kokumuncwa kwamanzi kwesisekelo.
Ngodaka lukasimende, ifomula yamandla elandelayo ingasetshenziswa ukulinganisa:
(1) Isisekelo esingamuncwa (njengetshe eliminyene)
Isisekelo esingenakumuncwa yisona sici esiyinhloko esithinta amandla odaka, okuyisisekelo okufana nokukhonkolo, okungukuthi, kunqunywa ngokuyinhloko amandla esimende kanye nesilinganiso samanzi-samente.
(2) Isisekelo esimunca amanzi (njengezitini zobumba nezinye izinto ezimbotshana)
Lokhu kungenxa yokuthi ungqimba oluyisisekelo lungamunca amanzi. Lapho imunca amanzi, inani lamanzi agcinwe odakeni lincike ekugcineni kwayo amanzi, futhi alihlobene kancane nesilinganiso samanzi nosimende. Ngakho-ke, amandla odaka ngalesi sikhathi ngokuyinhloko anqunywa amandla kasimende kanye nenani likasimende.
Amandla ebhondi yodaka lwamatshe
I-masonry mortar kumele ibe namandla anele okubumbana ukuze ihlanganise ubucwebe bube yinto eqinile. Ubukhulu bamandla obumbene bodaka buzothinta amandla e-shear, ukuqina, ukuzinza kanye nokumelana nokudlidliza kwe-masonry. Ngokuvamile, amandla okuhlanganisa ayanda ngokwanda kwamandla okucindezela odaka. Ukuhlangana kodaka nakho kuhlobene nesimo esingaphezulu, izinga lokumanzi kanye nezimo zokuphulukisa zezinto zokwakha.
Isikhathi sokuthumela: Dec-07-2022