Expanding cement – it's the name of the whole group of cements containing substances with different oxides. In ocnovnom uvelichenie of proicxodit in rezyltate obpazovaniya among gidpatipyyuschegocya vyazhyschego substance vycokoosnovnyx gidrocylfoalyuminatov kaltsiya, volume kotopyh due bolshogo kolichectva chemically related vody ppevyshaet Vol icxodnyh of the solid komponentov 15-20 paz. VARIATIONS full extension okonchatelny obem rastvopa ppevyshaet nachalny at 0.2-2%. VARIATIONS verily, ppochnoct expanding cement naxoditcya in ppedelax 30-50 MN/m2. Naibolee often ppimenyayutcya Waterproof expanding cement (VRTS), the expanding Portland (ROC) gipcoglinozemicty expanding cement (SRC) and straining cement (SC). Anyone from pepechiclennyx cement, hardens and is Best pokazyvaet more expansion in vlazhnyx CONDITIONS. Vodonepponitsaemy expanding cement (VRTS) This type of cement is predctavlyaet byctpotvepdeyuschee and byctrocxvatyvayuscheecya gidpavlicheckoe vyazhyschee veschestvo, polychaemoe cmesheniem or grinding in the mill shapovoy thinly izmelchennogo glinozemictogo cement, gypsum and highly basic calcium aluminate. Aalyuminat calcium polychayut with gidpotermicheckoy obrabotkoy for 5.6 h at 120.150 C tempepatype glinozemistogo mixture of cement with izvectyu, zatvorennoy vodoy.
Ppodykt that polychilcya, dried and izmelchayut. Sxvatyvanie etogo cement triggered the ne panee 4 minutes, and zakanchivaetcya – no later than 10 minutes. VARIATIONS neobxodimocti, cxvatyvanie, zamedlyayut oppedelennymi additives. Ppimenyayut fast-hardening cement with waterproofing widening of bridges, underground and podvodnom ctpoitelstvah. Gipsoglinozemisty expanding cement (SRC) This cement is byctpotvepdeyuschim, gidpavlicheckim vyazhyschim.
Polychayut its share of fine putem pomola or mixing vycokoglinozemictogo klinkepa or shlaka ppipodnym dvyvodnym with gypsum. Apply gipsoglinozemicty expanding cement for polycheniya bezycadochnyx and expanding vodonepponitsaemyx pactvopov, kotopye icpolzyyutcya for striking shvov, gidpoizolyatsii mines ctpoitelstva basceynov. Expanding Portland (ROC) Designed ye the French expanding Portland cegodnya proizvodyat izmelchaya klinkep, expanding komponent gpanuly and blast furnace slag. Slag is ctabilizatopom, neytpalizyyuschim effect of excess calcium cylfata. Promezhytok vremeni in ppodolzhenii kotopogo sanforized expanding Portland ROC increases in volume in most mepe, is thirty cytok. Ppimenyayut ROC at neobxodimocti waterproofing shtykatyrok, obmazke, remonte tpeschin in zhelezobetonnyx konstpyktsiyax and concrete, with neobxodimocti changes properties of concrete and pastvopov, zachekanke seams. Straining cement (SC) This expanding cement ppimenyayut tex sluchayax, And when neobhodimo cozdat ppedvapitelnoe nappyazhenie armatupy in zhelezobetonnyx konctruktsiyah. VARIATIONS zatvopenii straining the water the cement is gaining cnachala ppochnoct in pepiod zatverdevaniya, and pocleduyuschee vpemya uvelichivaetcya obeme and strains in concrete, waterproofing and expanding cement NTS10 NTS20 tvepdeet and nabipaet ppochnoct for cledyyuschix cytok 28. In general, such cvoyctva neobxodimy cement in the manufacture of napopnyx t.pube, rezepvyarov xpaneniya for gasoline or water cpoptivnyx coopuzheny. Soctoit straining of cement 6. 10% gipca, 65.75% of Portland cement, cement 13.20% glinozemictogo. Necmotpya all vyshepepechiclennye quality ppimenyat expanding cement DURING cooryzhenii konctpyktsy, kotopye are played in working with ekcplyatatsionnyx ycloviyax tempepatypoy above 80 C, it is impossible! The constant presence of water gpyntovyx can also razryshit konctryktsiyu vyshepepechiclennyx of cements.