SU1350137A1 - Binder - Google Patents

Abstract

The invention relates to the industry of building materials and can be used in the production of slag base in the living. The purpose of the invention is to increase the strength of the binder. The slurry includes, wt.%: Portland cement 10-15, cupola slag 30-40, the mother liquor (in terms of dry substance) 4-11, ash-slag mixture the rest. The strength of the bending under bending after 90 days of curing is 59-77 kgf / cm under compression 405-450 kgf / cm. 2 tab. co wore c vl

Description

one

The invention relates to a compound in the living and can be used in the building materials industry.

The purpose of the inventions is the penetration perfection;

The mother liquor is a waste product of sodium bicarbonate production. Its density is 1.1-1.15 g / cm.

The composition of the mother liquor, g / l:

Naj SOz50-55

NaHCOj125-135

NaCl2,2

IronSledy

The annual volume of this waste is 8-10 thousand tons per year in terms of 100% soda - NajCOj, which is not. It is used in production, but is completely dumped.

The introduction of a cupola slag and an alkaline component into the composition (mother liquor) increases the

Thus, along with the portland capacity of the environment, i.e. It increases the pH of the medium, which provides for the burning of cupola slag and masterbatch cement to silicate hydration, and the alumina liquid is an additional mosilicate slag.

The initial step in the hydration process is the spontaneous dispersion of slag particles under Q conditions. high pH environment. When a slag substance interacts with aqueous solutions of alkali metal compounds, it modifies the slag glass phase hardening activators.

The cook is prepared by sharing

grinding slags in a ball laboratory mill to a specific surface area of at least 3000, followed by grinding with ash and portland cement to a specific surface area of 4000-5000.

The chemical composition, structure and volume of the solid phase, which leads to dispersion.

Slag granules of fuel power stations are heavily vitrified. The vitreous phase is 80-95%. is a thermodynamically non-stable oic phase. Granulated fuel ashes and slags are caplet-free aluminosilicate substances, which only with active mineral additive in the form of portland cement and cupola slag have the ability to be hydraulically solid. And the alkaline component (mother liquor) during the hardening of the susceptible intensifies the destruction and hydrolytic dissolution of glass, ensures the formation of alkaline: hydroapyosilicates and the creation of an environment conducive to the formation and high stability of low calcium hydrosilicates.

The active silica and alumina in the ash and fuel slag bind alkali and alkaline earth.

water-soluble compounds in durable water-insoluble compounds similar to natural analgesia.

The low solubility of the neoplasms, the stability of the structure over time are the conditions for the durability of the slag base.

The introduction of a ground crustacean slag into the composition also increases frost resistance in the feed, fly ash plays the role of crystallization centers and contributes to the growth of its physical and mechanical properties, and the mother liquor has a strong plasticizing effect on the feed, due to which it differs in lowered water demand and increased workability “as well as an alkaline component, which is a part of the substance, also plays the role of an anti-fungal additive.

Thus, along with portland0

25 Cement cupola slag and mother liquor are additional

The cement cupola slag and mother liquor are additional

slag glass phase hardening activators.

The cook is prepared by co-Q

ZV

40

grinding slags in a ball laboratory mill to a specific surface area of at least 3000, followed by grinding with ash and portland cement to a specific surface area of 4000-5000.

Mixtures of cupola slag, ash-slag mixture, Portland cement are prepared for the binder.

The results of chemical analysis of the starting components are given in table. one.

A mixture of 1: 3 (in the remaining sand) is stirred in a mixer and compacted on a vibrating plate in beams forms 4x4x16 cm. Samples are steamed in a laboratory.

at the temperature of isothermal heating of 95 + 5 ° С.

In order to exclude access to the norm of the condensate during the heat and moisture treatment and to reduce the surface concentration of the alkaline component on the surface, the surface of the beams is protected with rubber mats. Before heat and moisture treatment

The survivors are kept for at least 4 hours. Simultaneously, the tests are performed in strangers in Normal air-wet conditions at 28 and 90 days of age of hardening.

The data of physicomechanical tests for those who suffer are given in table. 2,

The water requirement of the normal density test offered by the prospect is in the range of 20-24%, while the known is 27-29%.

The water-to-slag ratio of the proposed consistency of a 1: 3 normal consistency (spreading of a cone of 1 70 mm) is 0.28-0.3, and the water-cement ratio of lime lime in the same consistency is 0.40. Frost resistance offered in more than 100 cycles. In addition, the proposed bushing has a higher strength than the known.

Since the composition of the proposed trap contains a certain equilibrium amount of free alkali, the mechanical strength of the trap not only does not decrease, but increases by 10-15%.

The durability of the proposed tenant is sufficiently high.

44, 91 10.2 4.4 34.8 3.02 0.78 Else

23, 5 3,5 5,6 63,6 1,5 1,5

Ashes and slag mixture 48.8 25.15 13 3.0 2.2 0.2

the possibility of using slag and ash-slag mixture and thermal power plants in the production of slag-alkali in the living and allows them to be considered very promising for use in rural construction in the production of precast concrete with heat and moisture treatment.

Claims (1)

Invention Formula Stronger, including Portland cement, ash-slag mixture and hardening activator, characterized in that, in order to increase strength, it contains cupola slag and mother liquor as an activator in the following ratio of components, wt.%: Portland cement 10-15 Varachnoi shlak 30-40 Uterine fluid (in terms of dry substance) 4-11 Zoloshlakov mixture Rest Table 1 0.2 Else 1.6 2.9 0.75 0.12 0.15 Else go go go about sh N | vO I--. in t oh oh rv4 cm oh see cm 00 SO GM lO - cm about r-j th  f J- 3-4t r- "about oh LA - t 4f 04 r (N 00 CM GO r GM T- Ch 00 00 M CM OO LO LO t- OO CJ CM CM CM r MS about th about CTi 00 o oh go ) d- Ш about - see t 00 in go th go to in go go r from go go chg in f th cho in - in - go Cho sh -. W -vt go about CM in about hch in about gm w