EA012025B1 - Complex additive for concretes and building mortars - Google Patents

Abstract

The invention relates to production of building materials, in particular, to complex additives for concrete mixes and can be used in producing concretes and different-purpose building mortars. The invention is characterised in that a complex organomineral additive includes amorphous and/or crystalline silicon dioxide, a derivative of higher fatty acids, based on naphathaleneformaldehyde superplasticizer (based on B-naphthalene sulfo acid salt), comprises oligomers of higher fatty acids of lapromol production as a derivative of higher fatty acids, based on naphathaleneformaldehyde a Poliplast SP-1 superplasticizer with the following component ratio, mass %:

Description

The invention relates to the production of building materials, in particular, to complex additives in concrete mixes and can be used to obtain concrete and mortars for various purposes.

Known complex additive for concrete and mortar containing, wt.%: Containing silica dispersed mineral component - including the product of dry gas cleaning furnaces, melting crystalline silicon, and / or ferrosilicon, and / or ferrosilicochrome - 51.9-94.1, chemical additive - including a plasticizer based on naphthalene sulfonic acid polycondensate salt and formaldehyde, and / or its mixture with nitrilotrimethylphosphonic acid, and / or a lignosulfonic acid salt plasticizer - 4.7-45.5, water - the rest (RF No. 2160723, publ. 2000.12.20 ).

The closest analogue for the claimed additive is a complex additive for concrete and mortar containing, by weight.h .: amorphous and / or crystalline silicon dioxide 100, higher fatty acids and their salts 5-300, 2 naphthalene formaldehyde-type superplasticizer 5-300 (Japan No. 62180741, published on 1987.08.08).

The problem to which the present invention is directed is to obtain highly mobile concrete mixes (from P1 to P5) using the patented complex additive and increase the strength of concrete and mortars.

To solve the problem and achieve a technical result, a complex additive for concrete and mortar containing amorphous and / or crystalline silicon dioxide, a derivative of higher fatty acids, a naphthalene formaldehyde-type superplasticizer, contains higher fatty acids oligomers as a derivative of higher fatty acids, naphthaleneformaldehyde-type superplasticizer - Polyplast SP-1 superplasticizer with the following ratio of components, wt%:

Superplasticizer of naphthalene-formaldehyde type - Polyplast SP-1 46.0 - 97.5

Waste production of lapromol 0.01 - 0.1

Amorphous and / or crystalline silicon dioxide the rest.

This complex additive, in particular, in concrete mixes, is organ-mineral, the name - “Polyplast-MB”. For the preparation of complex supplements use:

a naphthalene-formaldehyde-type plasticizer, namely Polyplast SP-1 according to TU-5870-005-0580-42865 or a similar naphthalene-formaldehyde type product, for example, Superplasticizer C-3;

amorphous and / or crystalline silicon dioxide is a mineral product of natural origin, and / or products of dry gas cleaning of furnaces for the production of crystalline silicon and / or ferroalloys, such as ferrosilicon, ferrosilicochrome;

oligomers of higher fatty acids produced by lapromol, the use of waste products is possible.

To assess the effect of the additive on the properties of the concrete mixture were tested. The test results in the table. 1 and 2.

Claims (1)

CLAIM A complex additive for concrete and mortar, including amorphous and / or crystalline silicon dioxide, a derivative of higher fatty acids, a superplasticizer of naphthalene formaldehyde type, characterized in that it contains oligomers of higher fatty acids of the production of lapromol as a derivative of higher fatty acids, and naphthalene as a superplasticizer - formaldehyde type - superplasticizer Polyplast SP-1 in the following ratio of components, wt.%: