SU1219547A1 - Binder - Google Patents

Description

one

The invention relates to the industrial use of building materials and can be used in the manufacture of pszaklelochnoho living in for concreting large volumes of arrays.

The purpose of the invention is to reduce exothermia during curing.

Example. When conducting tests using the following materials.

Domain slag. Granulated ground, with a specific surface of 3750-3800. The chemical composition of the slag, wt.%: Calcium oxide 42.3-43.7; alkyne oxide 8.9-10.2, iron oxide 4.8-5; magnesium oxide 2.4-2.7; manganese oxide 0.8-1.2; titanium oxide 1.4-1.8; sulfur oxide 0.9-1.1; silicon oxide the rest.

Bulky slag ground, with a specific surface of 3600-3700 cm / g. Hee

3 5 7

6.95

5 45

7 60

10 VO

8.14

8.35

4,058.95

153

204

255

195472

The chemical composition of this slag, wt.%: calcium oxide 23.6-24.8; alumina 14.3-14.8; iron oxide 10.8- 11.3; magnesium oxide 6.6-6.9; oxide of silicon else.

Silica gel - white carbon black, calcined for 12 hours at 150 ° C to remove ammonium fluoride contains amorphous silica - 99.98% by weight; G fluorine is 0.02 wt% and is a waste product of hydrogen fluoride production. Alkaline water - waste soda production, the composition of which, wt.% Sodium hydroxide 88,5; hydroxide-LIA AND, 2; sodium metal 0.3. Metasilicate sodium - technical. Prepare samples of the compositions specified in table 1. The heat release during hardening of the specimens and the 20 strength of the specimen under compression and bending are determined. The test results are shown in Table. 2,

Table 1

50 5 33 7 10 10

81.86 8.14 84.80 8.35 86.00 8.95

79 71

3 4 5

Each composition is prepared on the basis of Calcium oxide. Thus, as a shutter melt, each body contains either the bodies and on sodium metasilicate in a alkaline water, or the metasilicate content specified in Table 1 in sodium.

Note. In the numerator, the compositions prepared on alkaline water, in the denominator - on sodium metasilicate.

Editor I. Derbak

Compiled by T.Selchenkova

Tehred I. Proofreader S. Shekmar

1227/31 Circulation 640 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch PPP Patent, Uzhgorod, Proektna St., 4

12195474

table 2

Claims (1)

BINDER including blast furnace slag, alkaline activator and silica gel, characterized in that, in order to reduce exotherm during solidification, it additionally contains alumina in the following ratio of components, wt.%: Alkaline asset congestion 3-5 Kremnegel 15-25 Alumina 3-7 Domain gravel slag Rest s © JV hU>