Wood concrete mix

FIELD: construction.

SUBSTANCE: wood concrete mix comprises, wt %: portland cement 34.3-36.0; rush cane stems cut into sections of 4-6 cm length with moisture of 10-12% 19.6-20.6; technical sulphur 3.1-3.6; chrome-containing sludge 1.5-1.7; pyrite stubs 6.2-7.2; water - balance.

EFFECT: use of wood concrete with simultaneous production of plastering base on its surface.

1 tbl

 

The invention relates to the construction materials industry and for manufacturing products (blocks) from arbolita, the surface of which is subject to plastering.

Known cement wood mixture containing, wt.%: Portland 17,0-38,0; liquid glass 1,0-1,4; calcium chloride 0,5-1,1; crushed stalks of cotton 21,0-28,0; water - other [1]. Plastering products from a mixture of cement wood is a time-consuming process.

The task of the invention consists in the manufacture arbolita with simultaneously obtained on the surface of the base for plaster.

The technical result is achieved by the fact that cement wood mixture containing Portland cement, aggregate plant origin, water, as a placeholder contains chopped into segments with a length of 4-6 cm cane reeds with a moisture content of 10-12% and advanced technical sulfur, chromium sludge and pyrite cinder, in the following ratio, wt.%: Portland 34,3-36,0; cane reeds 19,6-20,6; technical sulfur 3,1-3,6; chromium sludge 1,5-1,7; pyrite cinder 6,2-7,2; water - the rest.

The compositions of the mixture of cement wood in the table.

For preparation of mixture of cement wood use chrome sludge following average composition, wt.%: CrO3General - 9,8; CrO3water-soluble - 3,4; CrO3acid-soluble - 1,6; Cao the CT. - 2,37; Cao General 21,4; MgO - 35,7; Fe2O3- 19,2; Al2O3- 2,85; SiO2- 4,8; the rest is water.

In the composition of the mixture of cement wood use pyrite cinder, consisting mainly of a mixture of oxides of iron (II, III) terms of iron content 40-63%, of sulfur 1-2%, the rest - oxides of non-ferrous metals.

Technical sulfur is a byproduct of refining oil with a purity of 99,06% mass ash - 0,4%; mass fraction of volatile organic compounds - 0,53%; mass for moisture is 0.01%.

Table
ComponentsContent, wt.%
123
Portland cement (500 M)34,335,236,0
Chopped into segments with a length of 4-6 cm cane reeds with a moisture content of 10-12%19,620,120,6
Technical sulfur3,13,43,6
Chromium sludge 1,51,61.7
Pyrite cinder6,26,77,2
Water35,333,030,9
Compressive strength, MPa3,43,53,7

Industrial waste (technical sulfur, chromium sludge and pyrite cinder) give the pulp cane resistance to biretrosteel, sulfur restores toxic chromium (VI) in a stable chromium (III).

The components are metered in the desired quantities, mix. The obtained mixture of cement wood is placed in the form. The molding mixture of cement wood conducted vibration (vibrating plates). As the binder composition of the mixture by weight is heavier than the chopped stalks of cane reeds, the vibration process stems one end (side, side) remain in the mixture, and the other end of the cane comes out near the surface and forms the basis ("shingles") for subsequent plastering.

The molded product leave until hardened, then the surface of the plaster. This provides the reduced labour costs by plastering surfaces of cement wood products, increases their lifespan.

The source of information

1. SU 802244, 1984.

Cement wood mixture containing Portland cement, aggregate plant origin, water, characterized in that the filler contains chopped into segments with a length of 4-6 cm cane reeds with a moisture content of 10-12% and advanced technical sulfur, chromium sludge and pyrite cinder, in the following ratio, wt.%: Portland 34,3-36,0; cane reeds 19,6-20,6; technical sulfur 3,1-3,6; chromium sludge 1,5-1,7; pyrite cinder 6,2-7,2; water - the rest.



 

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