SU746125A1 - Filling-in composition - Google Patents

Description

(54) MOLDING COMPOSITION

The invention relates to the field of mining industry, which can be used for the development of mineral deposits with open-mine mineral deposits. The known composition of the filling mixture is for the filling of underground voids, the resulting waste from the processing of bauxite ores), gypsum (1-7%), aggregate (50-63%), water (the rest), which is used with pipeline, transport .1. The disadvantage of this composition is the low mobility of the mixture and the strength of the binder. In addition, the well-known composition of the filling mixture, the highest weight.%; Waste from the processing of bauxite ore 15.4-17.9 Gypsum3.6-6.2 Tailings 23.8-27.4 Crushed stone 33.6-ЗТ, 7 Water 16.4-17, The disadvantage of this mixture is its low mobility ( 8–9 cm) and a large stratification of the awn (52–57%), which excludes its transportation to the place of installation through pipes by gravity flow, as when the mixture is stratified, the pipeline is capped. In addition, the distribution of the filler, in the case, both in and across the area of the constructed Massif is uneven, as a result of which (the physical-mechanical properties of the array are different in different places. At the same time, the strength of the filling concrete varies from 2 to 100 kg / cm, which indicates the stratification and non-uniformity of the hardened permeable backfill mixture. The aim of the present invention is to increase the mobility and single-grain amount of the mixture.This is achieved by keeping the composition as an activating additive nce at speduyushem sootvShSch) G1sompo1aontv Waste processing bauxite .RUD12-17 Izvest1,0-6,0

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yan tabl. 1 it is clear that the mobility of the proposed mixes is 40-45% higher than the known, and the mobility is as follows (for compression, for example, are equal. In addition, the compressive strength

Indicators of compressive strength of concrete samples taken from various places prepared in the laboratory conditions of the backfill array, in 28 room crying .. ,, .., lw.V - .. / - ,. -.il, G: .... .. Table 2

The optimal composition is the following composition / filling mixture: waste from processing bauxite ores 13%, lime 5%, tailings 44%, crushed stone 10%, water 19%.

As can be seen from the table. 2 dispersion of the HobfHbbi characteristics of YoEn's concrete samples “& foam, 4TF6 xSpas: Tepai3yW ЬDyOgenality of the backfill array.

Samples drilled by the IDs of different places of the backfill array prepared in laboratory 1 of the village are more stable than the mixture used for the prototype (see Table 2).

T a b I and a 2

Based on the obtained hardness (determined by separation by awn) of the massif (Table 1) meeting the requirements of the filling concrete, the amount of lime in the mixture may be 1.0-6.0 wt.%. waste from bauxite ore processing is 17.0–12.6, and the ratio of coarse aggregate (crushed stone) to fine (enrichment tailings) is 54 Tails of (extinguishing 40 0-45, O Sheben 18,0-23,0 Water Water Remaining Composition and physical and mechanical the properties of this mixture are presented in Table 1. Table 1

1: 2. At the indicated ratio, the coarse fraction of the aggregate is in a suspended state, since the sediment of the StroiNIIIL cone in all the mixtures (Table 1) is greater (11.6-12.5) than in the mixtures taken as prototype. (6–8 cm) 1.5–2.0 times / ala of the sediment of the cone in mixtures taken for the prototype indicates that the separation of components takes place.

Increasing the mobility of the proposed mixture by 4–45% (see Table 1) makes it possible (only to increase the range of gravity transport of the hardening filling material through pipes. Reducing its layering) ensures reliable operation of the pipeline without plugging it. In the developed space, the aggregate will be evenly distributed throughout the entire pledged array (-Table 2), which will increase the strength and stability of the hardened concrete to dynamic loads from EXPLOsiON.,

Due to the high mobility of the mixture achieved by the reduction of large f | the shares of the filler and the increase in the small and respecting their ratio as provided by high-performance 746125

The work of the concrete-laying complex is reliable and trouble-free.

X ..-, ..,

invention formula

five..

The composition of the filling mixture containing waste from the processing of bauxite ores, an activating additive, tailings, crushed stone and water, characterized in 10 in order to improve the flow and uniformity of the mixture, the composition contains lime as an activating additive in the following compaction ratio (wt.%) : 5 Waste recycling

bauxite ore12.0-17.0

Lime1.0-6.0

Tailings of 40.0-4S, 0 Crushed stone 18.0-23.0

0 Water. The rest

Sources of information taken into account in the examination

1. AVT.SVVD. USSR № 585205, cl. E 21 P 15/00, 1974. 5; 2. Isakov V.-A. and others. Improving the efficiency of cleaning works on the basis of the use of advanced technology and high pro-proliferation equipment in the mines of Kazakhstan, id-in KazNIINTI, Alma-Ata, 1977, p.90-94 (prototype).

Claims (2)

Claim The composition of the filling mixture containing waste from the processing of bauxite ores, an activating additive, tailings, crushed stone and water, different heme, which, in order to increase the mobility and uniformity of the mixture, the composition as an activating additive contains lime in the following ratio of components (wt.%): Bauxite Ore Processing Lime Tails Crushed stone • Water. 12.0-17.0 1.0-6.0 40.0-45.0 18.0-23.0 The rest of the information, upon examination 1. Auth. testimonial. USSR No. 585295, class * E 21 P 15/00, 1974. 2. Iookov V.A. et al. Improving the efficiency of sewage treatment based on the use of advanced technology and high-performance equipment in the mines of Kazakhstan, KazNIINTI Institute, Almaty, 1977, pp. 90-94 (prototype). enrichment accepted Sources into account