Hanyar ƙwayar ƙarfe mai aiki

Babban sinadaran sinadarai na hakar habin suna da CaO, SiO2, Al2O3 da Fe2O3, da sauransu. Hakar habin ana amfani da shi a matsayin tamping ko cika a haɗin aspalti, yana iya rage ƙarancin aspalti, rage cinye siminti, inganta aikin daidaici na siminti, da kuma rage zafi na hydration. Bugu da ƙari, haɗin hakar habin da aspalti na iya samar da siminti na aspalti, wanda zai inganta ƙarfi da kwanciyar hankali na siminti na aspalti. An saba amfani da ƙimar hakar-man a matsayin wakili na abun da ke kunshe da hakar habin, ƙarin ƙimar hakar-man, ƙarin ƙarfi na jure ƙonewa a zazzabi mai zafi na siminti na aspalti, ƙaramar ƙimar hakar-man, mafi kyau juriya ga fasa mai zafi na siminti. Siminti da aka haɗa da hakar habin mai laushi na iya jinkirta saurin aikin abubuwan da ke haɗuwa da siminti, yana tsawaita lokacin saiti na siminti, wannan hali yana dacewa da sufuri da ginin siminti a lokacin yanayi mai zafi.

Ka'idojin ƙwanƙwasa na hakar habin hanyar mota

《Tsarin fasaha don gina hanya aspalti》JTG F40-2004 yana bayar da tanadi akan ka'idodin ƙwanƙwasa na hakar habin aspalti, wato rarraba girman ƙwayar, kamar yadda aka bayyana a nan.

Don hanya, hanya mai mahimmanci: girman ƙwayar hakar habin ƙarami fiye da 0.6mm ya kamata ya kasance 100%, fiye da 0.15mm ya kamata ya ƙunshi 90% - 100%, ƙarami fiye da 0.075mm ya kamata ya ƙunshi 75% - 100%.

Don wasu hanyoyin, girman ƙwayar hakar turɓaya ƙarami fiye da 0.6mm ya kamata ya kasance 100%, fiye da 0.15mm ya kamata ya ƙunshi 90% - 100%, ƙarami fiye da 0.075mm ya kamata ya ƙunshi 70% zuwa 100%.

Shawara: duba "ka'idodin fasaha don gina hanya aspalti"

Shawarar kayan aiki

MTW na irin Turai

[Yankin aikace-aikace]: Jerin MTW na Trapezium na irin Turai yana da amfani sosai a cikin aikin yankan kayan samfur a fannin metallurgy, kayan gini, masana'antar chemik.

[Kayan da ya dace]: quartz, feldspar, calcite, talc, barite, fluorite, tombarthite, marmaro, ceramic, bauxite, ore na phosphate, zinariya zuma, turɓaya, da sauransu.

LM na yankan mai juyawa

[Yankin aikace-aikace]: ya dace da siminti, wutar lantarki, metallurgy, masana'antar chemik, kayan masana'antar hakar habin.

[Kayan da ya dace]: siminti, kwal, feldspar, calcite, talc, fluorite, ƙarfe, ƙarfe, ore na phosphate, graphite, quartz, turɓaya, da sauransu.

Ilminin masana'antu karama

1. A cikin babban asfalt, shin ba mineral foda ba ne mafi kyau?

Girman gishiri na iya bi, ba karami ba ne mafi kyau. Matsakaicin yawan ketarewa ga gishiri > 0.15mm ya kamata ya kasance 90-100%.
Idan aka giro foda sosai, a gefe guda, yana haifar da babban amfani da makamashi da karancin tattalin arziki, a gefe guda kuma, yana sa hadin ya yi wahala, sabanin haka, yana sauƙin fashewa lokacin da aka yi amfani da shi a hanya.

2. Me yasa "foda mineral" da aka sakewa daga hadin asfalt an haramta shi a ginin hanyoyin mota?

(1) Fodar mineral tana bukatar mai alkalinity yayin da aka dawo da foda ba daidai ba.
(2) Fitar mineral yana bukatar yawan ketarewa na 75% ga gishiri > 0.075mm amma dawowa tana da wahala sosai a cimma ba tare da tabbas ba.
(3) Fodar mineral tana nufin takamaiman foda da aka giro daga dutsen mai ƙarfin gaske kamar limestone ko magmatite yayin da dawowar take dauke da adadi mai yawa na ƙasa da sauran datti.
(4) Densitin foda mineral bai kamata ya zama ƙasa da 2.5t/m3 ba yayin da dawowar bata kai ga ƙa'idar ba.
(5) Abun ruwa na foda mineral bai kamata ya zama fiye da 1% ba yayin da dawowar take dauke da babban abun ruwa, tare da block mai ƙarfi.

3. Menene ayyukan foda limestone da slag na furnace lokacin da aka yi amfani da su a cikin babban asfalt?

Foda limestone tana daga cikin haɗin mineral na inert a fannin kimiyyar kayan aiki, yana samuwa a cikin pavement na asfalt, yana inganta viscosity da ƙarfi na asfalt, za a iya amfani da shi a ginin hanyar jirgin ƙasa da hanyoyin mota, yana taka rawa a matsayin filler.
Babban aiki na foda slag na furnace, foda slag na iya cike ko ƙaramin foda limestone, ya rage ƙididdigar bitumen-aggregate na haɗin asfalt. Lokacin da aka maye gurbin gaba daya, rabo mai tsaurara na haɗin zai kai minimum kuma abin da ya sami inganci ya kai mafi girma tare da kyakkyawar ductility mai ƙarancin zafi da sha'awa ga asfalt.
Note: Takardun shaida don Zane Zane na Asphalt Pavement (JTGD50-2006)
Takardar kimiyya don ginin pavement na asphalt na hanyoyin mota (JTG F40-2004)