Maganin daskarewa ƙari a kankare: fasaha bayani dalla-dalla

Maganin daskarewa ƙari a kankare - shi ne bushe cakuda ko bayani na sinadarai, wanda aka halin da fairly dogon shiryayye rai. Babban manufar wannan kari ne ga samar da concreting ayyuka a hunturu.

New hadedde maganin daskarewa Additives, kuma daidaitawa matakai kafa kankare turmi ƙarfi tsara wani adadin mutanen da rheological Properties. A sakamakon haka, ragewan da yawan zafin jiki da rage saitin lokaci, accelerating da aiwatar da hardening ciminti dutse da ƙarfi ƙaruwa a kan-sa 2 daraja.

rarrabuwa

Maganin daskarewa Additives a cikin bayani (kankare) a kan tushen da sinadaran za a iya raba uku main kungiyoyin:

• Maganin daskarewa.
• Sulfates.
• Winter maganin daskarewa Additives boosters.

Bari mu bincika su, a cikin mafi daki-daki.

maganin daskarewa

Wannan maganin daskarewa ƙari a kankare rage sanyinsu na ruwa, accelerates ko weakly damuarn saitin bayani. A wannan maganin daskarewa ba ya canza gudun da samuwar Tsarin.

sulfates

Iron sulphate, aluminum ko wasu karafa ne wani maganin daskarewa bangaren, Bugu da kari na wadda za ta samar da mafi m samuwar wani m bayani. A magani ma gaskiya ma ta shafa aiki zafi, wanda yana tare da dauki tare da hydration na kankare kayayyakin. Ba za ka iya amfani da wani ƙari a rage sanyinsu, kamar yadda aka gaba ɗaya dangantawa da talauci mai narkewa mahadi.

Winter maganin daskarewa Additives boosters

Maganin daskarewa Additives a cikin bayani (kankare) na da irin wannan taimako zuwa ga mataki na solubility na silicate ciminti aka gyara kafa a sakamakon biyu ko tushe salts da hydration kayayyakin. Mafi yawansu ba su kasance a lokaci guda rage sanyinsu.

jinsunan

• Potash - mai karfi maganin daskarewa ƙari a kankare, accelerates da hardening tsari. Domin ya hana karfin rage potash shawarar hada da Mash yisti sulfite, sodium tetraborate ko wasu retarders. A maida hankali a cakuda dole ba wuce 30%.
• Sodium nitrite - wuta m mai guba maganin daskarewa ƙari a kankare. A cikin hali na hadin gwiwa amfani da lignosulphonates iya samar da guba gas. A sashi ya kamata a ƙaddara empirically kuma a cikin kewayon 0,1-0,42 l / kg na ciminti slurry a yanayi zazzabi daga 0 zuwa -25 ºC.
• Sodium formate ne maganin daskarewa totur. Amfani da tada plasticizing, ruwa-rage Properties. Nagari don amfani a tare da tare da lignosulfonate naphthalene. Wannan maganin daskarewa ƙari a kankare ta ciminti taro kwarara yana da wani talakawan 2-6%.

Don shirya wani kankare aiki in winter, a Bugu da kari zuwa sama, wanda za a iya zaba a kan tushen da maganin daskarewa ƙari sodium formate a barasa, urea, ammonia ruwa ko alli chloride.

abũbuwan amfãni

• Plasticizing da kuma tabbatar da dorewar shirye-mix sumunti.
• Yana ba ka damar yin kankare ayyuka a hunturu.
• Qara longevity cakuda a lokacin da ginin aiki.
• Inganta karshe sanyi bayani.
• Rage ƙunci nakasawa.
• Rage ruwa da rabuwa da kuma delamination tsari.
• Ya rage kudin da kafuwa.
• Gusar lalata na ciki reinforcing raga.

Amfani da maganin daskarewa Additives to kankare zai kullum haifar da gagarumin tanadi.

shortcomings

• Wasu ƙari aka gyara an dauke mai guba.
• Domin dogara tabbatar da karfin halaye na ciminti amfani ƙaruwa.
• Wani lokaci yana da dama a kayyade iya aiki na kankare iri.

aikace-aikace Notes

Maganin daskarewa ƙari da aka gabatar a cikin kankare mix tare da ruwa, zai fi dacewa tare da na karshe na uku na ruwa. Shi ne a ke so allurar wakili a bushe cakuda. Bayan da ƙari an gabatar a cikin bayani, wajibi ne a jira wani lokaci domin tabbatar da uniform rarraba.

Yana da muhimmanci a bi da umarnin ga taron jama'a aiki a cikin hunturu lokaci:

• A lokacin da wani snowfall dole ne ka yi musamman mafaka.
• A shawarar da zazzabi daga cikin bayani a kanti na mahautsini: daga +15 ºC zuwa +25 ºC.
• Don shirya cakuda ne kyawawa, ka dauki mai tsanani ruwa.
• Dumama da aggregates da za a yi kai tsaye kafin amfani.

Don samun wani bayani da zama dole ƙarfi halaye, shi ne shawarar zuwa cika da bukatun ga kankare kula in winter, daidai da SNIP 03/03/01. Yana da kyawawa don yin ayyuka don cimma ƙarfin ba kasa da 20% na zane da lokacin sanyaya bayani zuwa da zazzabi a wadda sashi lissafi da aka yi.

Maganin daskarewa ƙari a kankare: Bayani dalla-dalla

sashi

Sashi maganin daskarewa ƙari ya kamata a zaba domin kowane batu ta hanyar yin gwajin a masana'antu da kuma awon yanayi. Yana dogara a kan wadannan:

• Sharuddan kula ga kankare.
• Da yawan zafin jiki na bayani a cikin kanti na kankare mahautsini.
• Yanayi zazzabi.
• Real da kuma sinadaran-mineralogical abun da ke ciki na bayani da karfin ci gaba.
• Dauke da siminti da ƙarfi.

Domin shafe tsawon ajiya, ko yin amfani da wani manyan girma Additives bada shawarar lokaci zuwa lokaci, homogenizing da mafita ta stirring ko sparging tare da matsa iska. Sashi ya kamata a yi da wani daidaito na ± 2%.

Maganin daskarewa ƙari a kankare da hannuwansu

Shi ne ya kamata a lura da cewa fi so zaɓi ne saya a shirye-sanya kankare admixtures bayani a wani musamman shop. Su ne ba kamar yadda tsada, da low amfani da haka samar a cikin hunturu lokaci, wani gagarumin ci gaba a cikin kaddarorin da bayani tare da kadan korau effects.

Lokacin da wani kananan aiki gaban da wani iska zafin jiki na a kalla 10 ºC, da hanyar zai zama mafi kyau duka.

Duk da haka, ta faru da cewa maganin daskarewa ƙari a kankare, sanya da hannunsa - wannan ita ce kaɗai zaɓi. A wannan labari, ya kamata ka kula da chloride (gishiri). Chloride salts iya rage da sanyinsu na bayani, don rage saitin lokaci da kuma rage amfani da ciminti. Amma irin wannan maganin daskarewa ƙari a kankare (comments daga masana tabbatar da wannan) za a iya amfani unreinforced Tsarin kawai.

rigakafi

Lokacin aiki tare da wani abu na irin wannan bada shawarar yin amfani m safar hannu.

Bayan lamba tare da fallasa fata wajibi ne a wanke kashe tare da sabulu da kuma ruwa. Ba da damar da wani maganin daskarewa ƙari a cikin ido. A irin wannan yanayi wajibi ne a nan da nan kurkura nufin manyan girma na ruwa da kuma kanemi shawara.

Amfani da wani ƙari a daidai da dokokin gida, shi ne tsananin haramta wa sallame cikin drains, surface ruwa da kuma ƙasa.