SU1167166A1 - Slag-concrete mixture for manufacturing heavy structures - Google Patents

Abstract

PLASMA CONCRETE MIXTURE FOR THE MANUFACTURE OF MASSIVE CONSTRUCTIONS, including Portland cement, ground granulated slag, large aggregate, sulphite yeast mash, additive and water, which, in order to improve the water tightness and mobility, it contains limestone as a supplement, and, in order to improve water tightness and mobility, it has a limestone paste that is limestone, and it is made of limestone, and it is made of limestone. a surface of 500-1200 cm / g, silica dust with a specific surface of 30000-40000, hydrogen peroxide and additionally fine aggregate in the following ratio of components, wt.%: 8-10 Portland cement Ground granulate van12-14 slag 51-52 Coarse aggregate Sulfite-yeast 0.05-0.07 5 mash Formed flour with specific surface 500-1200 1-2 Silica dust dust with specific surface 3000040000 0.1-0.5 0.01 -0.03 Hydrogen peroxide about: 13-17 Fine aggregate vl Else Water OD

Description

one

The invention relates to monolithic construction, as well as to the construction industry, and can be used in the manufacture of masinkink structures and structures - foundations, enclosing structures, grillages, etc.

Concrete mixtures for the manufacture of concrete and reinforced concrete products based on Portland cement are known, including as an additive that reduces the heat release of cement and concrete, natural silica contents 1.

The disadvantage of these concrete mixes is a reduction in the strength of concrete in proportion to the amount of additive. Closest to the proposed technical essence and the achieved effect is a slag-concrete mixture {, 2j including, kg: Portland cement 234-258 Granular

slag 697-776

Granite crushed stone 1200-1265 Voda177-229

Sulfite-yeast brew, O, -5 Calcium nitrate25, 3-29,0 The disadvantage of it is increased water permeability and low mobility.

The purpose of the invention is to increase the water permeability and mobility. The goal is achieved by the fact that slag concrete mixture for the manufacture of massive structures, including Portland cement, ground granulated slag, large aggregate, sulphite-yeast mash, additive and water, contains limestone powder with a specific surface 5001200, silica dust with a specific surface 3000040000 as an additive , hydrogen peroxide and additionally fine aggregate, in the following ratio, wt.%:

Portland Cement 8-10

Ground granulated slag12-14 Large aggregate 51-52 Sulfite yeast brew 0.05-0.07 Known for Kova flour with a specific surface of 500-1200 cm / g 1-2

71662

Silica dust with a specific surface area of 30000-40000 0.1-0.5 Hydrogen peroxide 0.01-0.03 - Fine aggregate 15-17

WaterEverything

The joint introduction of lime flour with a specific surface of 500–1200, silica dust Q is a by-product of silicon production with a specific surface of 30,000–40,000, hydrogen peroxide, and a sulphite-yeast brew in a composition including ground granulated slag, portland cement, and

aggregates, provides a synergistic effect of reducing heat loss without reducing pro-activity due to the intensive interaction of limestone flour, finely dispersed silica and hydrogen peroxide in the presence of a sulfite yeast binder with clinker and slag materials and intermediate products of their hydration.

P r and m er. Slag-concrete mix is prepared from Portland cement M500, ground granulated blast-furnace slag from the Novo-Tula Metallurgical Plant with a specific surface area of 3500 cm / g, a round filler in the form of granite crushed stone of a fraction of 5-20 mm, and a fine aggregate in the form of quartz sand from the Tuchkovo quarry

5 with a module of size M | 1.9, lime powder from limestone of the Kovrovsky deposit with a specific surface of 800, silica silt, a by-product of silicon production with a specific surface of 35000, hydrogen peroxide, and a sulfite yeast brew of the Balakhna pulp and paper mill. The preparation of the concrete mixture is carried out in a laboratory.

5 gravitational-type concrete mixer, the formation of cube samples with rib sizes of 15.0 cm is produced by standard methods. After preparation, the concrete mixture is placed in a sealed vessel in a separate heat-insulated chamber, in which the temperature of the concrete is measured, which is taken as an indicator of heat removal. Mobility

55 of the concrete mix is determined in accordance with GOST 10181-78, the compressive strength of concrete according to GOST 10180-74.

Claims (1)

SLAG-CONCRETE MIXTURE FOR MAKING MASSIVE STRUCTURES, including Portland cement, ground granulated slag, coarse aggregate, sulphite-yeast mash, additive and water, characterized in that, in order to increase water resistance and mobility, it contains limestone flour with an additive surface 500-1200 ^cm2 / g, silica dust with a specific surface 30000-40000 ^cm2 /g,.perekis hydrogen and further fine aggregate next SRI, wt.%: Portland cement Ground granulated slag Coarse aggregate Sulphite yeast mash Limestone flour with a specific surface of 500-1200 cm ² / g Siliceous dust with a specific surface of 3000040000 cm ² / g Hydrogen peroxide Fine aggregate Water 8-10 12-14 51-52 0.05-0.07 1-2 0.1-0.5 0.01-0.03 15-17 Else .1167166- 1 1167166