SU1242483A1 - Raw mixture for producing light-weight concrete - Google Patents

Description

The invention relates to the building materials and products industry and can be used for the manufacture of building heat insulating plates and heat insulating elements for pipelines.

The purpose of the invention is to reduce the bulk density and increase strength.

The dry matter of the fibrous mass filter contains sieve. 50-70% wood shreds up to 5 mm long and 30-50% kaolin used for bleaching-ed paper. This mass is the main polluter. The water is a pulp and paper industry; it is used in agriculture as a fertilizer after 3 years of biodegradation in septic tanks that occupy large areas.

Special light materials are used as a filler - expanded clay, agloporate expanded perlite sandJ foamed glass in the form of granules or crushed stone pumice, vacuoles, glass reinforcements, vermiculite; sawdust covered fire wood chips,

In order to impart biological stability and fire resistance to the material, water repellents, antiseptic substances, and antipyretic agents are introduced as necessary and depending on the conditions of use of this material at the construction site.

To mix the mixture of the concrete in question, a forced action mixer is used (preventing the clumping of the mass.

Before the mixer, without any preparation, they load f4 liter mass, mix with liquid glass until the lumps are broken up and the proper preparation is obtained.

homogeneity, then an inlet is added and mixed until a homogeneous mass is obtained.

Water is added if the filter mass is too low to obtain the consistency of the mixture according to the specific molding method.

From the mixture obtained, heat insulating materials are molded by known methods.

the products, then immediately without exposure, they are freed from the forms (this allows technological strength) and dried at 100–160 ° C for a reasonable weight.

The required strength of the products is controlled by the consumption of liquid glass, and the required volumetric weight and, accordingly, the coefficient of thermal conductivity is controlled by the consumption of the filler and the choice of its type,

The mixture is prepared in a laboratory 15-liter vibratory mixer forcing. after the forging of samples and testing them. As the mortar part of the concrete, a mixture of fibrous filter masses from vacuum networks of wastewater treatment plants of a pulp and paper mill with a solution of liquid potassium glass; density 1.34 g / cm is used. use vspu

common perlite sand up to 3 mm. Determined by the compressive strength of mechanical tests of samples in a hydraulic press and the bulk density by weighing the samples expanded to constant weight.

The results are shown in the table.

Note. Use filler: expanded clay,

agloporite, expanded perlite sand and foam glass.

Compiled by O. Motorina Editor N. Rogulich Tehred M. Khodanych Proofreader M. lllaponiH

Order 3664/24 Circulation 640 Subscription

.VNIIPI USSR State Committee

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

Production and printing company, Uzhgorod, Projecto st., 4

Claims (1)

RAW MIXTURE FOR MANUFACTURE OF LIGHT CONCRETE, including liquid glass, light aggregate, filler, and water, characterized in that, in order to reduce bulk density and increase strength, it contains as a filler waste from the pulp and paper industry - fiber filter from vacuum networks of treatment plants structures with a humidity of 50-90% with the following ratios of components, May.%: Liquid glass 0.1-20 Lightweight aggregate 0.5-15 Pulp and paper industry waste fiber filter mass from vacuum networks of treatment plants. humidity 50-90% 70-95 Water Else SU ,,, 1242483