Redispersible polima ufa amawongolera zofooka za matope a simenti monga brittleness ndi high zotanuka modulus, ndipo amapatsa matope a simenti kusinthasintha bwino ndi mphamvu yomangira yomangirira kuti ikanize ndikuchedwetsa kupanga ming'alu mumatope a simenti. Popeza polima ndi matope kupanga interpenetrating maukonde dongosolo, mosalekeza polima filimu aumbike mu pores, amene kumalimbitsa mgwirizano pakati aggregates ndi midadada ena pores mu matope. Chifukwa chake, magwiridwe antchito a matope owumitsidwa amawongoleredwa bwino kuposa matope a simenti.
Monga chokongoletsera chofunikira pakukongoletsa, khoma la putty ndi chinthu choyambira pakukweza ndi kukonza khoma, ndipo ndi maziko abwino pazokongoletsa zina. Khoma la khoma likhoza kukhala losalala komanso lofanana ndikugwiritsa ntchito khoma la putty, kuti ntchito yokongoletsa yotsatira ichitike bwino. Wall putty nthawi zambiri imakhala ndi zinthu zoyambira, zodzaza, madzi ndi zowonjezera. Kodi ntchito zazikulu za ufa wa polima wopangidwanso ngati chowonjezera chachikulu mu khoma la putty ufa ndi chiyani?
① Zotsatira pamatope atsopano;
A, Kupititsa patsogolo ntchito zomanga;
B, Perekani madzi owonjezera posungira bwino hydration;
C, Wonjezerani ntchito;
D, Pewani kusweka msanga
② Mphamvu pa matope owumitsa:
A, Chepetsani zotanuka modulus matope ndi kuonjezera kuyenerera kwake lofananira ndi wosanjikiza m'munsi;
B, Wonjezerani kusinthasintha ndi kukana akulimbana;
C, Limbikitsani kukana kwa ufa kuponya.
D, Kuthamangitsa madzi kapena kuchepetsa kuyamwa kwamadzi
E, Wonjezerani kumamatira ku gawo loyambira.
Nthawi yotumiza: Jan-08-2025