Sand Precoat: makhalidwe, ntchito

zakuthupi A monga mchenga, kungathandize kwambiri pomanga. Iwo anawonjezera kuti zosakaniza zosiyanasiyana amene ntchito kupanga zidutswa za konkire ndi mortars kwa plasters. Iwo kulimbitsa embankments ndi misewu. mankhwala ankagwiritsa ntchito chachibadwa, koma yokumba.

Malinga mtundu yopanga ndi alluvial mchenga, miyala, mtsinje kapena nyanja. Precoat (anatsuka) mchenga - ndi wochezeka zakuthupi kuti transmits madzi. Ndi pafupifupi lilibe dongo ndi mwala.

njira yopanga

Mafotokozedwe "gwetsa" madzi lalikulu kufinya hydro njira, kuchotsa chilichonse particulate. Zimakhala ang'onoang'ono ndi yunifolomu, kuwonjezeka khalidwe lake. Pakali pano, ndi alluvial mchenga kufunika kwakukulu zomangamanga.

Features:

• particles zakunja osakaniza si oposa 0,3%;
• Mpweya wa poizoni kalasi - woyamba;
• compaction chiŵerengero - 1,05-1,52;
• mkulu koyefishienti wa kusefera.

Alluvial mchenga zingakhale bwino grained, sing'anga-grained ndi coarse-grained. Mtengo wake avareji 0,6 mm. mtundu amadalira zimene zosafunika alipo m'nkhaniyo. White kapena grayish mtundu ali woyera khwatsi mchenga. Ngati hue m'malo bulauni kapena wachikasu, alipo mu oxides zinthu chitsulo.

ntchito

Alluvial mchenga ntchito:

• kupanga kumathandiza kuchepetsa, mizati, simenti mphete, amaika mumsewu matailosi;
• monga njira ndi excipient;
• kwa kumaliza ntchito.

Sand dzenje precoat (anatsuka) angapo ubwino pa ochiritsira miyala chuma (osasamba).

ulemu

• Osati limapangidwa particles dothi (mosiyana ndi mosasamba miyala mchenga, amene Falls sifting).
• Kwaletsedwa zili miyala ikuluikulu ndi dziko lapansi.
• Palibe inclusions organic.
• Musaphwanye ayeretsedwe zina.

Chofunika kwambiri kumanga ndi ntchito za mtundu woyera. Pali njira yoyeretsa zakuthupi. Ngati ndi kotheka kusamba pang'ono mankhwala, ndiye sieved ndi madzi kudyetsedwa. Pre-kufunika kusamalira chidebe, amene adzakhale backfilled kusakaniza. Madzi anasintha kangapo, mpaka zakuthupi ndi woyera.

Mukhozanso kugula mchenga alluvial, mtengo umene ndi apamwamba seeded. Ubwino wake ndi wakuti iye ali oyera kale. Pali njira mwambo ayeretsedwe osakaniza. Kutenga mauna zitsulo anatambasula pa chimango lapansi. Choyamba osakaniza anali sieved mwa chophimba kenako kutsukidwa mu beseni.

Pomanga pamakhala ntchito kuti kugwiritsa ntchito timibulu lalikulu. Kuti tichite zimenezi, kutenga chimango ndi mauna a 5-10 mm. Iwo anapereka horizontally pa njerwa (zidutswa 4-5 aliyense ngodya). Thumba kumalumikiza burlap. osakaniza pamwamba unatsanulidwa, kukhazikika kwake, ndi madzi akudyetsedwa wapanikizidwa payipi ya.

Nthawi zina ntchito yomanga mchenga osakaniza zosafunika malo ndi suspensions ena. Ndi chovomerezeka ntchito, izo sikutanthauza kuti ntchito yolalikira ikuchitika okha ndi ntchito zipangizo khalidwe. Mwachitsanzo, chofunika kudzaza gawo pamwamba pansi ngalande.

tanthauzo lake ndi zonse achibadwa ndi yokumba mchenga. Khalidwe zimatengera mphamvu matope mankhwala.