{"id":3790,"date":"2023-09-12T09:35:24","date_gmt":"2023-09-12T09:35:24","guid":{"rendered":"https:\/\/demomark.ee\/%d1%81%d0%bc%d0%b5%d1%81%d0%b8-%d1%81-%d0%b2%d1%8b%d1%81%d0%be%d0%ba%d0%b8%d0%bc-%d1%81%d0%be%d0%b4%d0%b5%d1%80%d0%b6%d0%b0%d0%bd%d0%b8%d0%b5%d0%bc-%d1%86%d0%b5%d0%bc%d0%b5%d0%bd%d1%82%d0%b0\/"},"modified":"2023-09-12T10:08:49","modified_gmt":"2023-09-12T10:08:49","slug":"%d1%81%d0%bc%d0%b5%d1%81%d0%b8-%d1%81-%d0%b2%d1%8b%d1%81%d0%be%d0%ba%d0%b8%d0%bc-%d1%81%d0%be%d0%b4%d0%b5%d1%80%d0%b6%d0%b0%d0%bd%d0%b8%d0%b5%d0%bc-%d1%86%d0%b5%d0%bc%d0%b5%d0%bd%d1%82%d0%b0","status":"publish","type":"page","link":"https:\/\/demomark.ee\/en\/refractory-mixtures\/%d1%81%d0%bc%d0%b5%d1%81%d0%b8-%d1%81-%d0%b2%d1%8b%d1%81%d0%be%d0%ba%d0%b8%d0%bc-%d1%81%d0%be%d0%b4%d0%b5%d1%80%d0%b6%d0%b0%d0%bd%d0%b8%d0%b5%d0%bc-%d1%86%d0%b5%d0%bc%d0%b5%d0%bd%d1%82%d0%b0\/","title":{"rendered":"Mixtures with high cement content"},"content":{"rendered":"

[vc_row][vc_column][vc_column_text]<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Name of mixture<\/th>\nCore component<\/th>\nChemical composition, %<\/th>\nDensity after firing at 800\u02daC, g\/cm3<\/sup><\/th>\nCompressive strength, N\/mm2<\/sup><\/th>\nThermal conductivity at an average temperature of 500\u02daC, W\/m*K<\/th>\nApplication temperature, \u02daC<\/th>\n<\/tr>\n
Al2<\/sub>O3<\/sub><\/th>\nSiO2<\/sub><\/th>\nFe2<\/sub>O3<\/sub><\/th>\nCaO<\/th>\n3 days after molding<\/th>\nafter firing at 800\u02daC<\/th>\n<\/tr>\n<\/thead>\n
Alcor 37-25<\/td>\nfireclay<\/td>\n37<\/td>\n48<\/td>\n5<\/td>\n8<\/td>\n1.9<\/td>\n20<\/td>\n15<\/td>\n0.8<\/td>\n1300<\/td>\n<\/tr>\n
Alcor 37-40<\/td>\nfireclay<\/td>\n39<\/td>\n42<\/td>\n7<\/td>\n10<\/td>\n1.9<\/td>\n35<\/td>\n25<\/td>\n0.8<\/td>\n1300<\/td>\n<\/tr>\n
Alcor 37-50<\/td>\nfireclay<\/td>\n42<\/td>\n43<\/td>\n3<\/td>\n9<\/td>\n1.9<\/td>\n30<\/td>\n25<\/td>\n0.8<\/td>\n1400<\/td>\n<\/tr>\n
Alcor 45<\/td>\nfireclay<\/td>\n45<\/td>\n42<\/td>\n1.5<\/td>\n9<\/td>\n2<\/td>\n45<\/td>\n35<\/td>\n1<\/td>\n1400<\/td>\n<\/tr>\n
Alcor 37-40T<\/td>\nfireclay<\/td>\n39<\/td>\n34<\/td>\n9<\/td>\n15<\/td>\n1.9<\/td>\n50<\/td>\n30<\/td>\n0.8<\/td>\n1300<\/td>\n<\/tr>\n
Alcor 37-50T<\/td>\nfireclay<\/td>\n44<\/td>\n36<\/td>\n3<\/td>\n14<\/td>\n1.9<\/td>\n40<\/td>\n25<\/td>\n0.8<\/td>\n1400<\/td>\n<\/tr>\n
Alcor 37-50KT<\/td>\nfireclay<\/td>\n40<\/td>\n37<\/td>\n3<\/td>\n14<\/td>\n1.9<\/td>\n60<\/td>\n40<\/td>\n0.8<\/td>\n1200<\/td>\n<\/tr>\n
Alkor 45T<\/td>\nfireclay<\/td>\n45<\/td>\n41<\/td>\n1.5<\/td>\n10<\/td>\n1.9<\/td>\n45<\/td>\n40<\/td>\n0.9<\/td>\n1400<\/td>\n<\/tr>\n
Alkor 45AT<\/td>\nfireclay<\/td>\n51<\/td>\n35<\/td>\n1.3<\/td>\n10<\/td>\n2<\/td>\n50<\/td>\n50<\/td>\n1<\/td>\n1450<\/td>\n<\/tr>\n
Aligan 37-40<\/td>\nfireclay<\/td>\n39<\/td>\n40<\/td>\n7<\/td>\n11<\/td>\n1.9<\/td>\n30<\/td>\n40<\/td>\n0.9<\/td>\n1300<\/td>\n<\/tr>\n
Aligan 37-50<\/td>\nfireclay<\/td>\n43<\/td>\n40<\/td>\n3<\/td>\n11<\/td>\n1.85<\/td>\n30<\/td>\n40<\/td>\n0.9<\/td>\n1400<\/td>\n<\/tr>\n
Alcor 56\/5<\/td>\nfireclay<\/td>\n57<\/td>\n36<\/td>\n1<\/td>\n5<\/td>\n2<\/td>\n40<\/td>\n40<\/td>\n1<\/td>\n1500<\/td>\n<\/tr>\n
Alkor 56\/5T<\/td>\nfireclay<\/td>\n56<\/td>\n35<\/td>\n1<\/td>\n6<\/td>\n2<\/td>\n30<\/td>\n30<\/td>\n1<\/td>\n1500<\/td>\n<\/tr>\n
Alkor 69AT<\/td>\nmullite<\/td>\n74<\/td>\n16<\/td>\n1<\/td>\n6<\/td>\n2.2<\/td>\n40<\/td>\n60<\/td>\n1.4<\/td>\n1450<\/td>\n<\/tr>\n
Alcor 76<\/td>\nbauxite<\/td>\n81<\/td>\n7<\/td>\n1.6<\/td>\n8<\/td>\n2.4<\/td>\n50<\/td>\n40<\/td>\n1.6<\/td>\n1450<\/td>\n<\/tr>\n
Alkor 76AT<\/td>\nbauxite<\/td>\n82<\/td>\n5<\/td>\n1.3<\/td>\n9<\/td>\n2.4<\/td>\n40<\/td>\n70<\/td>\n1.6<\/td>\n1450<\/td>\n<\/tr>\n
Alcor 94<\/td>\ncorundum<\/td>\n94<\/td>\n0.1<\/td>\n0.1<\/td>\n5<\/td>\n2.7<\/td>\n60<\/td>\n70<\/td>\n2.5<\/td>\n>1700<\/td>\n<\/tr>\n
Alcor 94TAB<\/td>\ntabular alumina<\/td>\n94<\/td>\n0.1<\/td>\n0.1<\/td>\n5<\/td>\n2.6<\/td>\n60<\/td>\n70<\/td>\n2.4<\/td>\n>1700<\/td>\n<\/tr>\n
Alcor 94T<\/td>\ncorundum<\/td>\n93<\/td>\n0.1<\/td>\n0.1<\/td>\n6<\/td>\n2.6<\/td>\n60<\/td>\n100<\/td>\n2.4<\/td>\n>1700<\/td>\n<\/tr>\n
Alcor 94TAB-T<\/td>\ntabular alumina<\/td>\n93<\/td>\n0.1<\/td>\n0.1<\/td>\n6<\/td>\n2.5<\/td>\n60<\/td>\n100<\/td>\n2.3<\/td>\n>1700<\/td>\n<\/tr>\n
Alcor 96<\/td>\ncorundum<\/td>\n96<\/td>\n0.1<\/td>\n0.1<\/td>\n3.7<\/td>\n2.8<\/td>\n40<\/td>\n70<\/td>\n2.6<\/td>\n>1700<\/td>\n<\/tr>\n
Alcor 96TAB<\/td>\ntabular alumina<\/td>\n96<\/td>\n0.1<\/td>\n0.1<\/td>\n3.7<\/td>\n2.7<\/td>\n40<\/td>\n70<\/td>\n2.5<\/td>\n>1700<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]<\/p>\n\n\n\n\n\n\n\n\n\n
These values may vary depending on the characteristics of the raw materials and are not guaranteed.<\/th>\n<\/tr>\n
ALCOR 37-25
\nALCOR 37-40
\nALCOR 37-50
\nALCOR 45<\/td>\n		Basic versions of concrete based on chamotte and aluminatcalcium cements of different composition and quality.
\nIn ALCOR 37-25 and ALCOR 37-40 mixtures the binder is a high quality synthetic fused alumina cement containing more than 40% Al2O3<\/sub>, ALCOR 37-50 and ALCOR 45 mixtures are made with high alumina cement.
\n\u041e\u0441\u043d\u043e\u0432\u043d\u044b\u043c \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u043e\u043c \u0441\u043c\u0435\u0441\u0435\u0439 \u0410\u041b\u041a\u041e\u0420 37-25, \u0410\u041b\u041a\u041e\u0420 37-40, \u0410\u041b\u041a\u041e\u0420 37-50 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0440\u044f\u0434\u043e\u0432\u043e\u0439 \u0448\u0430\u043c\u043e\u0442, \u0441\u043c\u0435\u0441\u044c \u0410\u041b\u041a\u041e\u0420 45 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0441\u044f \u043d\u0430 \u0432\u044b\u0441\u043e\u043a\u043e\u043f\u043b\u043e\u0442\u043d\u043e\u043c \u0448\u0430\u043c\u043e\u0442\u0435 \u0441 \u0441\u043e\u0434\u0435\u0440\u0436\u0430\u043d\u0438\u0435\u043c \u0431\u043e\u043b\u0435\u0435 40% \u0410l2<\/sub>O3<\/sub> \u0438 \u043c\u0430\u043b\u044b\u043c \u0441\u043e\u0434\u0435\u0440\u0436\u0430\u043d\u0438\u0435\u043c \u043f\u0440\u0438\u043c\u0435\u0441\u0435\u0439.
\nThe recommended method of laying is pouring. Shotcrete is possible, but it is better to use concrete with index “T” or ALIGAN series for this application method.<\/td>\n<\/tr>\n
ALCOR 37-40T
\nALCOR 37-50T
\nALCOR 37-50KT
\nALCOR 45T
\nALCOR 45AT<\/td>\n		Fireclay concretes for universal use with increased strength. Can be laid by pouring, shotcrete and hand capping.
\nALCOR 45T, ALCOR 45AT mixtures are made on high-density chamotte, ALCOR 45AT mixture is characterized by increased content of Al2O3<\/sub> in fine matrix, recommended for use in reducing atmosphere.
\nALCOR 37-50KT has increased acid resistance.<\/td>\n<\/tr>\n
ALIGAN 37-40
\nALIGAN 37-50.<\/td>\n		High cement content shotcrete with low rebound in gun shotcrete with improved abrasion resistance compared to similar ALCOR concretes.
\nALIGAN 37-50 due to the combination of low thermal conductivity and rather high abrasion resistance became the basic material for one-layer lining of reactors and regenerators of catalytic cracking units with dusty catalyst.
\nThey have a “viscous” consistency suitable for shotcrete, but when excess water is added they can be poured by pouring with intense vibration. When using the pour-in-place method, be aware that these concretes set quickly. In this case, the use of retarders is recommended.<\/td>\n<\/tr>\n
ALCOR 56\/5
\nALCOR 56\/5T<\/td>\n		High alumina mixtures on high-density chamotte with corundum matrix with application temperature of 1500\u00b0C.
\nThe reduced cement content and the presence of deflocculating additives in the composition of ALCOR 56\/5 concrete ensure its low water consumption and good flowability under vibration.
\nALKOR 56\/5T is recommended for manual shotcrete and caulking, but can also be applied by pouring.
\nThe fine binder matrix of these concretes is practically free of Fe2O3<\/sub> and SiO2<\/sub>, so they can be operated in a reducing environment.<\/td>\n<\/tr>\n
ALCOR 69AT
\nALCOR 76
\nALCOR 76AT<\/td>\n		High alumina mixtures on mullite or bauxite aggregates. For many years ALCOR 76 has been the most popular material for making burner stones for various types of stoves. ALCOR 69AT and ALCOR 76AT mixtures are modified to be applied by hand shotcrete and caulking, but can also be placed by pouring.<\/td>\n<\/tr>\n
ALCOR 94
\nALCOR 94T
\nALCOR 96
\nALCOR 94TAB
\nALCOR 94TAB-T
\nALCOR 96TAB<\/td>\n		Highly pure corundum or tabular alumina based mixtures with very low iron and silicon content. They have an exceptionally high fire resistance. Of all the high cement content concretes, only the concretes in this series can be operated in contact with liquid steel. Also recommended for use in highly reactive atmospheres, including those with high hydrogen content. They are “classical” materials for lining of furnaces for combustion of hydrogen sulfide and other sulfur-containing products.
\nALCOR 94T and ALCOR 94TAB-T mixtures are modified to be applied by hand shotcrete and caulking, but can also be placed by pouring. ALCOR 96 and ALCOR 96TAB mixtures, on the contrary, have increased fluidity, they are unsuitable for shotcreting.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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