SU814944A1 - Raw mixture - Google Patents

Description

This invention relates to the manufacture of building products that can be used in civil engineering. However, the product on dcHOse cement waste liquid and liquid glass 11) is known. However, the product on dcHOse of such a raw material mixture does not have sufficient strength and water resistance. The raw material 2 for manufacturing building products, including asbestos cement waste and ash, is the closest to the technical point the following the ratio of components, wt.%: Asbestos cement waste 25-80 Ash TPP20-75 However, products based on this raw material mixture are characterized by high bulk density and low resistance to water . The purpose of the invention is to reduce the volumetric mass and improve the water resistance of products. The goal is achieved by the fact that the organic mixture for the manufacture of construction products, including acetoneless waste and CHP ash, also contains urea resin in the following ratios of components, wt.%: Asbestos cement waste 40-52 Zola CHP 35-44 Urea resin 13-16 Proposed (The blend mixture is characterized by specific compositions represented in that ($ 1 item), and the physical and mechanical body “body” is presented in table 2. Table 1. Urea 13 14.5 resin

Prepare the mixture as follows.

Ace-cemented cement waste, pre-compressed to a residual moisture content of, respectively, 35%, 42.5% and 50%, swept away from aolol. CHP with a specific surface area of 2000 to semi-; cheni homogeneous mass. Then, carbamide resin diluted with water is added to the resulting mass to a B / C ratio of about 0.8 wt.

The mixture was stirred in a mixer for 2 minutes. After that, a 4x4x16 gauge was formed by mass distribution in a form with a subsequent vibration. The molded samples were held 28 and subjected to standard tests.

table 2

Volumetric „weight, kg / m

1610 1250 1180 1100

3, 8 3.9 3.9 30

3.5

19.1 19.6 19 O 35

18

0.65 0.71 0.74 0.72

Continued table. 2

Lost

strength at

compression after 20 S1KLOV freezing7, 5 7.1 7.2 vani,%

Claims (2)

. Invention Formula Raw mix for the manufacture of building products, including asbestos cement waste and ash CHP, characterized in that, in order to reduce the bulk density and povatatsev and water resistance products, it additionally contains urea resin in the following ratio of components, wt.%: Asbestos cement waste40-52 Ash TPP 35-44 Carbide resin 13-16 Sources of information taken into account in the examination 1 ;, USSR Copyright Certificate №463365 ,, class. From 04/15/16, 1975. 2. USSR author's certificate 581116, cl. From 04 To 15/16, 1976.