SU947120A1 - Binder composition - Google Patents

Description

one

The invention relates to the building materials industry, producing compounds based on mineral binder with inorganic additives, and can be used for joining and assembling parts from dissimilar materials, preparing reinforcing compositions, granulating powders, etc.

It is known in the girth, which includes a port-land of the cement and the addition of magnesium sulfate (0.5-9 °) 1.

The closest to the technical essence and the achieved effect to the proposed is a concrete, including: Portland cement or lime carbonate sodium and potassium carbonates 0, 5; sodium and potassium nitrates 0.01-0.5; magnesium oxide 20, magnesium sulfate and WEDU 2.

Disadvantages of the famous

PlyuYuG1P K (itn444f S1I) KI CXW, CHT

and low tensile strength after heat treatment, at 80 C.

The purpose of the invention is to slow down the setting time.

This goal is achieved by the fact that, in the slurry, including Portland cement or hydraulic lime, oxide and water, additionally contains magnesite caustic powder, citric acid and diatomaceous earth in the following ratio of components, wt.%:

Portland cement or

hydraulic from 1, 00 - 30,00 news 1,00 - 5,00

Magnesium oxide 1.00 -, 00

Magnesium sulfate

Magnesium Powder1,00 - 60.00 tovay caustic

Citric acid 0.01 - 10.00 1, 00 - ifO, 00

Kieselguhr

Water Rest

Example 1. In a mixture of materials of sitting materials, g: portopoid3 gjjiao 4

cement 50; magnesium oxide 10; sulphataval bushing on a bursting machine

magnesium 100; magnesite powder ka-M-100. The area of the section collected

oral 700; citric acid filled with cement, composition 0, 1; diatomaceous earth 50 water is introduced into the bath of an approximate amount of 90 ml. The mass is averaged to s. As follows from the data of Table 2, in order to obtain a homogeneous non-layering setting of the composition proposed in the bucket, after which the load is greater than that known in

 Installations for the assembly of parts, and the strength of the products assembled on stainless steel pred.

Examples of the compositions proposed and the strength of the products collected on the known in the sting, as well as the final in the stranger. This allows the physicomechanical breakdown of the stable operation of the line for

properties are given in Tables 1 and 2..the assembly of cutlery parts in

Tensile strength is determined by leakage hours without danger of withdrawal.

by breaking the assembled products such as 15

Table 1

Portland cement 30.0 Hydraulic lime Sodium nitrate 2.0, 0 Magnesium oxide Sodium carbonate 1.0 S, 0 Magnesium sulphate Magnesite caustic powder 20 0, 2

thirty

0.2

Claims (2)

35 10.0 5.0 1.0 0.5 3.0 3.0 2.0 30 - - - 0.2 20.0 25.0, 0 35 Claims of Invention Including portlandze or hydraulic lime, magnesium oxide, sulfate magnesium and water, in contrast to the fact that, in order to slow down the setting time, it additionally contains magnesite caustic powder, citric acid and diatomaceous earth in the following ratio of components, weight L: Portland cement or hydraulic Lime1, 00 - 30.00 Mg oxide 1.00 - 45.00 Continued table. 2 Magnesium sulphate 1.00 - tS.OO Magnesite caustic powder 1.00 - 60.00 Limonic acid 0.01 - 10.00 Kieselguhr 1.00 - 40.00 Water Others Sources of information taken into account in the examination 1, Copyright certificate USSR 628113, cl. C 0 B 7/5, 1978. 2. USSR author's certificate ° 709585, class, C 04 B 13/22, 1980.