SU952806A1 - Raw mix for making wall construction material - Google Patents

Description

The invention relates to building materials, namely, piece wall materials. : There are known masses for making concrete, including aggregate, fine ground aggregates - additives, water glass and hardener 1 ..

Their disadvantage is the use of expensive and toxic hardener, as well as low processability due to the use of liquid glass.

Closest to the offer is a raw mix, including volcanic slag 92-98 and soluble glass 2-8 2.

The disadvantage of it is low strength.

The purpose of the invention is to increase the strength of the material.

The goal is achieved by the fact that the raw material mixture for the manufacture of wall building material, including volcanic slag and the alkaline component, contains ground silicate clay as the alkaline component in the following ratio, wt.%:

Volcanic

slag89.15-90.93

A hammer of silicate lump9, 07-g10.85 Example. For the manufacture of wall material, a volcanic slag of a fraction of 5 mm with a bulk bulk density of 650-720 kg / m is used. The limits of the particle size distribution are given in Table. one.

The silicate block is ground in a laboratory ball mill to the fineness of grinding with a specific surface

15 to 4000-4100 cm / g. After that, the components of the mass are stirred dry for 1.5-2 minutes, then the calculated amount of water is added and mixed again until a homogeneous mass is obtained. The resulting mass is placed in cubes forms 50x50x50 mm and is molded under a pressing pressure of 3.0 or 20.0 MPa, depending on the required bulk density and strength of the material. The molded pieces are placed in a muffle furnace and immediately begin firing at a mode of 1.5+ (7-V) + - 1 h at an isothermal holding temperature of 400 C. At the end of the thermo30, the processing samples are removed from the furnace

and they reveal the basic physicomechanical properties of the precomputed ones in the table. 2

As can be seen from the results given in table. 2, the proposed composition provides a significantly higher material strength.

Thus, the proposed mass differs from the known one, and its use provides for obtaining a wall building material, (possessing the following advantages in comparison with the known ones: an increase in strength and a decrease in heat treatment temperature.

Table 1

40

25

ten

Complete

Content of components, volcanic slags

14 gallstone component of the silicate rock hammer

Claims (1)

Invention Formula The raw material mixture for the manufacture of wall building material, including a volcanic putty and an alkaline component, distinguishes 100 75 55 .Table 2 89.15 - 90.00, 90.93 10.85, 10.00 9.07 With the aim of increasing strength, it contains as the alkaline component ground silicate-lump in the following ratio of components, wt.%: volcanic slag 89.15-90.93 hammer of silicate-glub9.07-10.85 Sources information taken into account in the examination of 1- USSR Copyright Certificate, 390291, cl. C 04 B 19/04, 1976. 2, USSR Copyright Certificate No. 2791062 / 29-33, C 04 B 7/14, 1979.