SU1217675A1 - Method of manufacturing building articles - Google Patents

Description

one

The invention relates to the industry of building materials, in particular, to methods for manufacturing building products based on powder in a contacting condensation-1 ion hardening.

The purpose of the invention is to reduce the porosity of the products.

Example 1. From hydrated nepheline sludge powder; with a moisture content of 10%, samples were pressed at a pressure of 40 MPa. The resulting water-resistant stone was subjected to high-frequency exposure at a frequency of 150 Hz.

Example 2. Samples were pressed from a powder of hydrated nepheline spam at a pressure of 40 MPa.

12176751

I. The obtained waterproof stone was subjected to high-frequency exposure at a frequency of 100 kHz.

Example 3. Samples of a pressure of 40 mPa were pressed from a powder of hydrated 5 nepheline sludge. The resulting water-resistant stone was subjected to high-frequency exposure at a frequency of 200 kHz. 10 Example 4 (prototype). The hydrated nepheline sludge powder was pressed into samples at a pressure of 40 MPa. The obtained water-resistant stone was subjected to heat treatment at a humidity treatment at an isothermal holding temperature of 80 ° C. The test results obtained in examples 1-4 are shown in the table.

1150. 1.5

2100000 0.5

3200000 0.05

Compiled by V.Lebedev Editor M.Petrova Tehred A.Koyko Proofreader V.Sinitska

Order 1050/21 Circulation 556 Subscription

VNIITI State Committee of the USSR

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

Branch PPP Patent, Uzhgorod, st. Project, 4

18 17 18

12 12

12

14.8

15

14.5

Claims (1)

METHOD FOR PRODUCING CONSTRUCTION PRODUCTS on the basis of binder contact condensation friction powder by pressing hydrated binder powder under pressure 20-40. MPa and processing, characterized in that, in order to reduce the porosity of the products; the treatment is performed by exposure to ultrasound.