RU1781187C - Polymeric concrete mix - Google Patents

Abstract

Usage: production technology of building materials and products, namely, polymer concrete mixes intended for the manufacture of structural elements operating in aggressive environments. SUMMARY OF THE INVENTION: a polymer concrete mixture comprises (in wt.%): Furfural acetone monomer 8.6-9.6; benzenesulfonic acid 1.8-2.0; acidic waste of phenol production by the cumene method based on dimers a - methylstyrene - FAS 0.4-1.4; mineral filler 10.0-12.5; crushed stone 51.0-54.0; sand the rest. The compressive strength of polymer concrete is up to 106.0 MPa, bending 18.1 MPa. 2 tab.

Description

(L

WITH

The present invention relates to the production of building materials, to the compositions of polymer concrete mixtures intended for the manufacture of structural elements operating in aggressive environments. The invention is aimed at increasing the physico-mechanical characteristics and reducing the cost of polymer concrete.

A polymer-concrete mixture is known, including furfural-acetone monomer, acid hardener - benzenesulfonic acid, microfiller, crushed stone and sand.

The closest to the proposed invention in terms of technical nature and the achieved result is a polymer concrete mixture, composition wt.%: 6 - furfural acetone monomer, 8 - andesite flour, 54.2 - crushed stone 0.24-31.56 - sand, where the catalyst contains phenol and H2S04 in a ratio of 1: 1-1: 5, which is prepared by pretreating phenol with sulfuric acid to the appropriate one, where Ar is kept for 0.5-3 hours at 100-200 ° C (2).

The disadvantage of this polymer concrete mixture is that the target product of the cumene method for its preparation, phenol, is used as a catalyst for the polymerization process; the latter exhibits its catalytic activity only in the case of an additional sulfonation step at elevated temperature. Thus, the process of preparing a polymer-concrete mixture according to this technical solution requires an increase in the total energy consumption. The resulting material is characterized by low strength properties.

Xi 00

00

Xi

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

This is achieved by the fact that the polymer-concrete mixture, including furfural-acetone monomer, acidic hardener, mineral filler, crushed stone and sand, contains benzenesulfonic acid and acidic waste as acid hardener, the production of phenol and acetone based on dimers of α-methylstyrene FAS at the following ratio of components, wt.%:

Furfurolacetone

monomer 8.6-9.6

Benzenesulfonic acid 1.8-2.0

Acidic waste

phenol production

cumene

based method

dimers of α-methylstyrene-FAS0, 4-1.4

Mineral

filler 10-12.5

Crushed stone 51.0-54.0

Sand rest

Resin FAS-reagent acidic character, due to its phenol, dimethylphenylcarbinol, has

multifunctional effect on FAM:

a) promotes cationic type polymerization;

b) has a plasticizing effect due to dimethylphenylcarbinol and phenol;

c) is a structuring agent of mono- and difurfuroliden-acetone in the composition of FAM as a result of polycondensation at C 0 groups, affecting the network structure of the polymer.

FAS resin is a waste of the chemical production of phenol by the cumene method and accounts for 90% of the total feed losses in this process.

The polymer concrete mixture is prepared as follows. Mix first

Furfurolacetone monomer with the waste of the chemical production of phenol and acetone for 1.5-2.0 minutes, preheated to 40-50 ° C. Then, filler is added, a benzenesulfonic acid melt is introduced and mixed for 2-3 minutes in a high-speed mixer. Then sand and gravel are successively introduced into the resulting mixture, the whole mass is mixed once more until a homogeneous mixture is obtained.

After that, the mixture is laid in molds and compacted for 1.0-1.5 minutes. The polymer concrete mixture is aged at 20 ° С for 24 hours. After that, the samples are subjected to heat treatment at 80 ° С according to the regime of 3-8-3 hours.

Claims (1)

In the table. 1 shows the compositions of the half-, imerbetonnoy mixture tested, in table. 2 - test results. The claims A polymer concrete mixture including Furfurolacetone monomer, acid hardener, mineral filler, crushed stone and sand, characterized in that, in order to increase strength properties, it contains benzenesulfonic acid and acid waste of phenol production according to the cumene method based on dimers a, - methyl styrene - FAS in the following ratio of components, wt.%: Furfurolacetone monomer 8.6-9.6 Benzene sulfonic acid 1.8-2.0 Acidic waste phenol production by cumene method based on dimers a. -methylstyrene-FAS0, 4-1,4 Mineral filler 10.0-12.5 Crushed stone51.0-54.0 Sand The rest. Component FURFUROLACETONE MONOMER FAM Waste Chemical Phenol Production (FAS) Phenol (finished product) Sulfuric acid Benzene sulfonic acid Filler Sand Crushed stone The content of polymer concrete mixture, wt.% Howling I j 1 2 T 3 G 4 5 6 T 7 8 G 9 | 10 I 11 f 12 I 13 I 14 D 15 -6.0 p.6 0.12 8.0 31.56 54.2 S.63,69,2S.38,88,68,48,28,0 7,87,67,47,27,06,8 0,40,60,81,01.21,41,61,82,0 2,22,42,62,83..03,2 2.02.02.02.81.81.81.61.61.6 1.41.41.41.41.41.41.4 12.0-12.012,02,510,012,211,812,510,0 12,011,012,510,712,012,0 22,023,025,023,726,724,025,224,026,5 23,525,024,426,322,022,0 54,053.051.052,051.552, C51,451,953,1 51,953, G51,751,654,654,6 -J CO With Properties Lolimerbetonnm mixture iiEEIlZIIIlinillirEIiIIIIIiIi, Tensile strength at sleep .. MP9C.9 31.0 97. 109.2 10 ".0 EM 93.2 9M 91.9 86.4 80.1 73.7 69.5 69.362.951.7 Tensile strength at and, ri6 ",, 5 13.3 16.5 17.0 18.117.6 13.0 12.7 12.1 11.3 10.3 9.9 E ... Z 9L 8.9 7.3 T blitz2