SU635059A1 - Binder - Google Patents

Description

The invention relates to the field of building materials and can be used for the manufacture of masonry and plaster solutions.

Known in food, including sclags, ashes and alkali metal salts 1.

The disadvantage of these strangers is the need for autoclave treatment.

It is also known the closest to the proposed technical essence and the achieved effect of a staggering, including,%; silica component 20, blast furnace 58, lime 2, gypsum 20 2.

However, the well-known in Jundey has relatively low strength.

The purpose of the invention is to increase strength.

The goal is achieved by the fact that, in an oil mill, which includes a silica mineral, blast furnace slak, lime, gypsum, contains in addition: alkali sulphate

metal and as siliceous Komnenite ash with the following ratio of the components, the mass. %:

Ash

48-57

Blast furnace slag

12-20

Hns

4-5

Alkaline sulfate

2-3

Metal Lime Rest

Example. Granulated blast furnace slag from the Karaganda Metallurgical Plant, the ash of the Yermakovskaya TPP, hydrated lime, semi-aquatic gypsum and sodium sulfate are used as raw materials.

The chemical composition of itlak and ash for the recipient is given in table. one.

The compositions of the proposed l are given in Table. 2

t a b l ii c 2

Components

Ash

Blast furnace slag Lime gmdratna Gypsum semi-water CepHOKuc.ibiii naTpiiii

The slurry is prepared by co-grinding slag, lime, and gypsum in a ball mill to a specific surface of 6000 g / slg. Sodium sulphate or potassium sulphate is introduced with the mixing water. Samples - beams of 4X4x16 cm in size are prepared from the prepared in the ground. Conditions of hardening of the samples are normal - 28 days.

Testing of samples is carried out according to GOST. "Cements. Physical and chemical testing methods.

Normal density is 45-49% of the proposed current, the setting time is 46 minutes, the end is 3 hours.

The strength of the samples from the proposed besklinkernogo in the ghost and analogue

Compositions KSJ, kgf / s.

1350

2315

3ЗСО

4355

6303 Analogue IbO

From the data it follows that the samples from the proposed british have a strength of 70-100% higher than that of analog.

Formula inventions

A stranded, including silica component, household slag, lime, giis, characterized in that, in order to increase strength, it additionally contains an alkali metal sulphate and, in the iK quality of the silica component, ash in the following ratio of components, mass. 7o:

48-57

12-20

4-5

go

2-3 Else

Sources of information taken into account in the examination:

1. Copyright certificate

USSR Ho 419489, cl. From 04 to 7/14, 1973.

2. Volzhenskiy A.V. et al. Gypsum-Cement and Ouzzolan into concrete, concrete and products. M., “Stroyizdat, 1971, p. 58.