SU692807A1 - Raw mixture for preparing aggloporous material - Google Patents

Description

(54) RAW MATERIALS FOR THE MANUFACTURE OF AGLOPFRITA

one

The invention relates to the field of building materials, in particular to compositions of mixtures for the manufacture of a porous aggregate agloporite.

The known raw mix for the production of agloporite 1 and 2, including clay raw materials and lignin in an amount, wt.%:

Clay raw material 75-80 Lignin20-25

However, when using moderately plastic clay raw material

the agoporitic nostatic indicators based on such a mixture are low. The fraction of 10-20 mm has a strength of 4.4 kgf / cm3, and 5-10 mm - 9.0 kgf / cm.

The insufficient strength of agloporite prevents its use in order to obtain lightweight concrete of high grades.

The purpose of the invention is to improve the strength of agloporite.

To obtain agloporite, three mixtures were prepared, the composition (wt.%) Of which is given in table. one;

Table i

The removed clay and the return are mixed, granulated in a drum granulator, dried to a moisture content of 10% and subjected to sieving on a roller separator to separate a 0-5 mm fine fraction, which is recycled to the clay mixer. Lignin is added to the prepared clay raw material, which is premixed with a bulk volume, kg / m

10-20MM

FR.

5-10MM

Mechanical strength, kgf / cm

l gray oil and granulate to a particle size of 10 mm. After thoroughly mixing the mixture, it is subjected to sintering on an sintering plant in a known manner.

Table 2 shows the physico-mechanical properties of agloporite / obtained on the basis of the proposed and known mixtures.

Table 2

480 485

365 595 530

468