Chochuluka ndi osalimba woona wa simenti

Simenti ndi chigawo chachikulu cha kasakaniza youma ntchito yomanga, amene ntchito pomanga nyumba, atagona misewu, kukhazikitsa nyumba analimbitsa simenti kapena kupenta ndi zokongoletsa. Kumanga chizolowezi simenti kachulukidwe (monga kulemera kwa chiŵerengero buku) lagawidwa ndi chochuluka ndi oona. makhalidwe amenewa ziwiri zosiyana mu chochuluka kachulukidwe chimaonekera pamene nkhaniyo ali mu mkhalidwe lotayirira. Ndi 1100 - 1600 makilogalamu / Cu. mita (1600 makilogalamu / mita kiyubiki kuti boma densified).

The kachulukidwe zambiri za simenti chimaonekera ndi chipangizo wapadera wopangidwa mwa fanulo ndi yamphamvu maphunziro. osakaniza simenti anali kulemera yeniyeni (2 kg) udzathiridwa mu nyuzi, amene akuzengereza inclusions lalikulu. Kenako, akulowa yamphamvu, obravnivaetsya, ndiyeno pamodzi ndi yamphamvu ndi kulemedwa. Ya kulemera okwana kulemera chifukwa ndi subtracted yamphamvu. Komanso, misa kugawidwa ndi buku kupereka kuchuluka ankafuna. Mtengo wa kachulukidwe chochuluka ntchito pamene tsegula konkire chosakanizira zigawo kwa yokonza konkire.

Simenti kachulukidwe choona chimasiyana ndi mtokoma kuti kwa simenti ndi kukusalani zigawo zonse mpweya. Zimenezi zimabweretsa kuwonjezeka kachulukidwe mpaka 3000 - 3200 makilogalamu / Cu. mita. nyumbayi ntchito kuwerengetsa kufunika pafupifupi pafupifupi 1300 makilogalamu / Cu. mita. Amaganiza kuti simenti amene kachulukidwe zimasiyanasiyana osiyanasiyana yoteroyo lonse, ndi bwino khalidwe mu matope, ndi kuyandikira kwa pafupifupi mtengo osalimba.

osalimba a simenti chimadalira pa mlingo wa zigawo akupera, pamwamba tirigu nkhaniyo, komanso mmene osakaniza zouma mu silo. Palinso zinthu akhoza kutchulidwa zinthu yosungirako - kutentha, chinyezi, ndi makhalidwe ena. osalimba a zinthu monga simenti zina amasankha magawo monga mphamvu ndi kukana Zakudza ndi madzi (hydrophobic).

kachulukidwe wa simenti M400 zimadalira Kusiyana kwa mtundu uwu wa zinthu. Mwachitsanzo, M400-D0 alibe zina (D = 0), kotero kuti chizindikiro ntchito mu ntchito mobisa ndi m'madzi, ali mkulu madzi kukana, kachulukidwe ndi mphamvu. Simenti M400-D20 ndi pafupifupi 20% zina zomwe kuchepetsa kachulukidwe ake. Choncho, simenti ntchito slabs pansi, ntchito msewu, pavings nyumba, msewu ndi slabs amaika mumsewu. Koma mtundu M400-D20-B akufanana ndi M400-D0 mphamvu zake, koma mofulumira ikamauma, kulola ntchito kwa kupanga nyumba analimbitsa simenti.

chiwerengero 400 kulemba M400 limasonyeza bwanji pogwiritsa ambiri a simenti akuimira boma anaumitsa pa centimeter lalikulu. Ifeyo - ndi 400 makilogalamu. The apamwamba nambala apamwamba katundu zikhoza kutenga. Simenti amapatsidwa kwa makasitomala mu matumba kapena chochuluka. matumba yopezeka zinthu zomangira ntchito liza, ndi zambiri - pa zomera konkire ntchito mafakitale. Komabe, pali matumba mphamvu yaikulu kwambiri, yomwe ungasunge kwa tani imodzi. Iwo ankakonda kugwira naye ntchito zida zomangira mu mabuku lalikulu.