SU821430A1 - Packing building mix - Google Patents

Description

(54) MORTGAGE CONSTRUCTION cfiECb

This invention relates to the composition of the filling mix.

Closest to the proposed. is a backfill mortar, including hemihydrogen phosphogypsum, finely ground granulated ass, aggregate, and plasticizer cement l.

A disadvantage of the known filling mixture is not high enough strength.

The purpose of the invention is to increase the strength.

The goal is achieved. We say that construction is

a mixture of semi-aquatic phosphogypsum, ground granulated slag or sand, crushed stone and plasticizer, contains lime as a plasticizer in the following ratio

weight:

components

1.5-3

Semi-aquatic phosphogypsum tonkomoloty granulated slag or

0

0.2-1.0 sand 0.02-0.5 Crushed stone 0.02-0.5 Lime

The proposed filling mixtures of the following compositions are given in table. one.

Table 1

The mixture is obtained by mixing phosphorus hydrate crushed with wet grinding together with lime to a specific surface of 2000–2500 cbvr shlag 500–1000 cm / g or sand and crushed stone:.

Phosphol hemihydrate. -. waste production of extraction form; phoric acid; Water-solid setting ratio, h start. end . . . Compressive strength, kgf / cm after 28 days: 60. Softening factor (after 90 days) Frost resistance (yo ri strength after 25 cycles of mixing and thawing)

T8ePvv10S4U1o mixture of compositions I and IV 1 ékomeuiduts to use in Khachatva from a secondary material worked out) 9C Obyompev mines, the mixture has a good transyortable properties (maximum shear strength 0.01 kg / cm viscosity 0.12 kgf / m-draft cone 12; 13 cm) By all measures, the mixture meets the requirements for filling mixtures.

Mixtures of compounds II, I, and V meet the requirements for building mortar 100-150

: you are PULPUAL way

weight - prlugndrat sufat calcium. . Spak-waste copper smelting, granular sour. - Lime - serovskiy plant ferry rossppavov.

The test results are given. in table 2.

Table 2

The use of non-deficient cheap waste allows not only to get high-quality construction mixes, but also to significantly reduce their cost.

C) Staves of the known mixture are presented below, by weight.h .:

Phosphopolihydrate 3 2.0 Portland cement 0.2 0.5 Shlak0.2 0.5

Crushed stone0,02 0,5

The test results of the known mixture are given in table. 3. 5 0.40 2.5 3.0

water hard relation

end

Tensile strength at helium, kGS / cm After 28 days

Claims (1)

60 Of the presented comparative data, the proposed filling mixture surpasses the known filling mixture in terms of compressive strength. Claims of the invention: Backfill construction mixture, Yukhakhtsi ScH, semi-aquatic phosphogypsum, mine patterned granulated slag or ne6i | tr) ae6ie; iHb and plasticizer, from -. 35 and.h 41 1c and with TSh4, that, with a view to TII IYOYA 1tochnoti, it contained a plasticizer 11. ve Table 3 0.70 0.45 26 38 38 53 then the weight with ka with the following ratio of components. h .: Semi-aquatic phosphogypsum .1,5-3 Fine-ground .. granulated shpak or sand 0.2-1.0 Crushed stone 0.02-0.5 Lime 0.02-0.5 Sources of information taken into account during the examination 1. Lomovtseva . S. B. and others. Chemical industry, 1971, 12, 912-913 (prototype),.