| 摘要 |
FIELD: chemistry.SUBSTANCE: invention refers to construction materials industry and can be used in making building structures and units. The raw mixture for making ash and alkali concrete containing a binding agent consisting of liquid glass with a silica ratio of n=0.8-1.2 and a density of ?=1.37-1.39 g/cmproduced of industrial ferrosilicone waste from Bratsk Ferroalloy Plant that is silica fume having a bulk density of ?=270-290 kg/mand a percentage of other impurities of 1.1-3.8%, and flue ash II field by Kansk-Achinsk brown coal combustion at Bratsk Central Heating and Power Plant TETs-7 at a bulk density of ?=980-1,050 kg/mand a sieve No. 008 residue of 7.3-9.8%, and a filling agent that is Bratsk Aggregates Plant waste, rejected dunstone chips having a bulk density of ?=1,560-1,690 kg/m, a crushability strength of 9.8-12.6%, in the following fraction grains, wt %: fr. 5 mm 45.0, fr. 2.5 mm 21.3, fr. 1.25 mm 10.7, fr. 0.63 mm 7.6, fr. 0.315 mm 8.7, fr. 0.14 mm 6,7 and containing 0-15% of clay impurities in the following proportions of the raw mixture components, wt: above flue ash II field 21.1-22.7, above liquid glass 9.2-15.6, above rejected dunstone chips 63.3-68.1.EFFECT: higher strength.5 tbl |
