SU715526A1 - Binder - Google Patents

Description

The invention relates to industrial construction materials and construction.

It is known in perception, vkpyuch khaev, wt.%

Portlandcement80-9O

Dehydrated

gypsum 5-10

Lime 5-1O ll.

The closest to the proposed technical entity and the achieved effact is a binder, including Portland cement clinker, gypsum and as a supplement 0.5-3.0 wt.% Red mud 2,

A disadvantage of the known compounds in the living is their low strength.

The chain of the invention is an increase in the ef- fectiveness of the suspect.

This is achieved because of the fact that the portal, which includes the port l dandyam clinker, gypsum and the additive, contains the spent catalyst of the sulfuric acid wash as an additive in the following ratio of components, wt.%: Portfolio cement and clinker 81-94

Gypsum4-3

Spent catalyst 2-11 As an additive, all types of spent catalysts that are currently used in the sulfuric acid industry can be used, for example, CBC - TU-6-O1-1O15-75, TANF (sulfanadium low-cheraturized) -TU-6-O8 -188-70, SVD (KS) TU-6-O8-359-76, SVD-TU-6-08 1557O, BAV TU-48-7-5-72, TS (thermally stable vanadium) TU-0-O1- 919-. 74 and others.

The chemical composition of the spent catalysts (wt.%) Is p t bl. one. , : --/

Table 1

30-7О 2-6 2-4 Footprints

The essence of the invention is that when water mixes cement with the addition, the aqueous sulphates A1, alkali and alkaline earth metals present in it act as crystallization seeds, which are also provided with a protective colloidal gel for stabilizing tumors, whose large and high density contributes in the final as a result, all cements are ground to a specific surface area of l / -4000 cm / g.

The samples based on slag Portland HQvieitTa and pozzolan cement with the addition of spent catalyst retain a similar pattern of strength change, although the absolute values of the strength values are lower than for portlancent cement. Thus, this additive is used in combination with any one of the special cements to increase their beds.

The introduction of the cement 2-11% of the spent catalyst allows

1O-ZO Not me3-12 n.eZ, 5

the strength characteristics of cement stone.

Example. Portland cement clinker of the Belgorod cement plant is mixed, gypsum and spent catalysts for SHS and SVD measures by their joint grinding in a mill.

The strength characteristics of the obtained cements in comparison with the known are presented in table. 2

s,

Table 2

Claims (2)

INCREASE the strength characteristics of the obtained in the living by 15-20 0. The formula of the invention Strong, including Portland cement clinker, nmc and additive, which is due to the fact that, in order to increase the strength of the cement, it contains as an additive the developed catalyst of sulfuric acid industry with the following components, weight.% : Portland cement clter81-94 Gypsum4-8 57155266 Spent catalyst 2-111. Copyright svidetolstpo USSR Information sources, 2. USSR author's certificate taken into account in examination No. 417386, С О4 В 6/10, 1974. No. 412J.59, class C O4 B 7 / 0-1. 1974.