SU1231034A1 - Compound for manufacturing building articles - Google Patents

Description

And the acquisition relates to building materials and can be used in the production of lightweight thermal insulation products intended for the thermal insulation of external walls in large-panel and bulk-block house-building.

Components

Neutralizing pickle pickling product

Bauxite slime

Carbidna ieste push Cement. Fly ash Apyunineva powder

Bead granulated polystyrene (granule size 0.2–3 mm) neutralization product with lime by sulphate pickled steel was used as initial compoters, dehydrated at the press filter to a residual moisture content of 20–25%, the average chemical composition of which {in dry form) is , wt.%: SiOj3,3; CaO 42.0; MgO 2.5; 20.0; ZOe 14.0 and loss on ignition - the rest. Bauxite slurry used — waste from an aluminum plant (specific surface area 100) has the following chemical composition, oil: SiO, 25.0; AljOj 24.7; 26.0; CaO 1.1; RjO 9.4 and loss on ignition - the rest.

Water is added to the raw material mixture of these components to a water-solid ratio B / T of 0.35-0.40. The mass is stirred for 3-5 minutes until homogeneous, after this method of plastic casting is poured into metal molds with cell sizes of 50x50x50 mm and product samples are formed. Molded products live at room temperature in

The purpose of the invention is to reduce the coefficient of thermal conductivity and water absorption,

In tab. 1 shows the compositions of the proposed and known compositions.

Table

70 7

66

BUT

30 10 40 0.6

for 3 days, dried at. to constant mass.

The role of the components is as follows. Polystyrene granules in combination with light, mostly colloidal, particles of the product of neutralization of a solution of sulphate pickled steel provide the basis for the formation of a lightweight substance. The mentioned neutralization product, which is a calcium hydroxide crystalline hydrate, amorphous iron hydroxide and two-water gypsum, serves as a drying component. It also activates bauxite sludge, which is a mixture of aluminates, ferrites, calcium silicates and which is usually an inert conglomerate that does not have tampering properties. In this composition, the bauxite sludge is activated, its compounds are subjected to hydration. The bauxite sludge improves the water resistance of the products as it contains aluminum compounds.

Physical and mechanical performance

 samples prepared from the known and proposed compositions are listed in Table. 2

Bulk weight, kg / m

Compressive strength, MPa

Heat conduction coefficient, W / {m.K)

Water absorption,%

50 44

40 360 300 240

0.4 0.3 0.2 0.6 0.4 0.2

0,030 0,028 0,027 0,081 0,070 0,058 3,0 3,64,0 23,1 25,6 27,7

The advantage of the proposed invention over known solutions is to save the more expensive - lime

Editor M. Petrov

Compiled by I. Bru Ko

Tehred L. Serdyukova Proofreader G. Reshetnik

Order 2521/29 Circulation 640 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Design, 4.

Table 2

40 360 300 240

waste - carbide lime, which is more appropriate to use for the production of a number of other silicate products ..

Claims (1)

(54 j'COMPOSITION FOR MANUFACTURE; INSTITUTION OF CONSTRUCTION PRODUCTS, including lime-containing binder, polystyrene beads and aluminosilicate waste products, characterized in that, in order to reduce the coefficient of thermal conductivity and water absorption, it contains as a lime-containing cementitious binder the product is used to neutralize the sulfur-neutralized waste solution and as aluminosilicate production waste - side sieve slurry in the following ratio of components, wt.%: The product of the neutralization of the spent solution of sulphate etching of steel 66 - 75 Polystyrene Bead 14 - 30 Bauxite sludge 4-11