SU881025A1 - Glass - Google Patents

Description

one

The invention relates to opaque compositions (plugged white and colored glasses and can be widely used in construction and other areas, in particular, for lining products made of vibro-gas concrete.

Known glass 1 containing wt.%:

30-80

SiOo

0-10

ZrOo.

0-40

,

40

AIQ.OO

0-40

CaO 0-40

MDO

0-5.0 0-20

WAO

Glass is used for the manufacture of insulators, has a low whiteness and a low value of adhesion strength to concrete (6-7.0 cts / s).

Closest to the offer is glass 2, containing, in weight,%:

StOo.6U-75

N32.09-18

K / j 00-3

CaO0-9

HgO. 0-5

BaO0-3

A12.0, 0-7

0-6

ZrO-i 0.3-6

0.3-6

.0

CEO / 1.

The disadvantage of this glass is low whiteness (70%), low bond strength with concrete (65 kgf / cm).

The aim of the invention is to increase the whiteness and strength of adhesion to concrete.

. This goal is achieved by the fact that glass, including SiO, AliO, 15 MgO, CaO, VeO, Na p,, ZrOQ, CeO2. Additionally contains Bopj in the following ratio of components, wt.%:

55-67.0

SiO / x

20

A1 0.03 0.1-0.5

Mgd

3-10,0

25-35.0

Cao

0.5-5 O

WAO

0.05-0.25

Nalo

25

0.05-0.25

Kio

0.1-5.0

Zroflt

uaiDa 0.05-0.5 0.05-1.1

Ce% 0.1-8.0

30 and the amount of CaO and MDO is 30-45%,

To obtain a different color range, glass may contain at least one dye from the group) ,, ,, NO, F65.07 ,, MnOQ, CuO and Cu in an amount of 0.015, 0% by weight.

Specific glass compositions explaining the invention are given in TAL. 1. The physicochemical properties of the BOB are given in Table 2.

The dependence of the color of glass on the concentration and type of dye is given in table 3.

As a basic raw material for the production of opal and color glass, it can be used as a natural glass raw material: quartz sand, dolomite, limestone and chalk, as well as the corresponding rocks and slags. Oariy carbonate, zirconium concentrate, boric acid or calcium borate are also used. Chemical production wastes: polyrite (oxides of rare-earth elements), as well as salts of dye oxides.

The indicated glass compositions are cooked in gas-flame furnaces at 1480110 С, temperature of generation is 1280 + 10 ° С. Logarithm 1a viscosity at a cooking temperature of 1.24, and at a temperature of generation of 1.98.

The use of the method of limited intermittent dyeing of glass melt in the form of colored spots, stripes, drops, streaks, lines makes it possible to obtain a material imitating natural marble. The high value of the adhesion strength to concrete allows to significantly improve the performance characteristics of vibration concrete, which requires a protective finishing layer from weathering.

Table 1

The diffuse reflection coefficient in the visible spectrum, whiteness in%

I.

Coefficient of thermal expansion 1n 10-degrees-K

97

96

97

95

69

70

69

72

Temperature of onset of deformation, ° С

Adhesion strength with concrete, to HS / mm

Chemical stability, loss: weight according to GOST 10134. Continuation of table. 2

700 680

700

690

13.5 13.8 12.5

14.2

12.3

Claims (1)

Claim Glass, including S i 0, A1j, MgO, CaO, BaO, NaaP, KjO, ZrO ^, Lag.0 ^, CeO ^, characterized in that in order to increase the whiteness and adhesion to concrete, it additionally contains B in the following ratio of components, wt.%: SiOo 55-67.0 AIqOi 0.1-0.5 MgO 3-10.0 CaO 25-35.0 Wow 0.5-5.0 Na ^ O 0.05-0.25 Q0 0.05-0.25 45 z ^ZrO i 0.1-5.0 La-ioff 0.05-0.5 With eOj. 0.05-1.1 In rtOj. 0.1-8.0 moreover, the sum of CaO and MgO is 30-45%.