RADIATION-PROOF STRUCTURAL CONCRETE AND METHOD FOR PRODUCTION THEREOF Russian patent published in 2015 - IPC C04B28/04 G21F1/04 C04B111/20 

FIELD: chemistry.

SUBSTANCE: invention relates to a composition of radiation-proof structural concrete with a porous aggregate and a method for production thereof. The invention can be used in construction of facilities which provide protection from a high level of an electromagnetic field generated by both external and internal sources. Radiation-proof structural concrete obtained from a mixture consisting of portland cement, sand, hardening water, a porous aggregate and carbon-containing radiation-absorbing filler, wherein the porous aggregate is in the form of foamed glass granules with size of up to 5 mm, and the carbon-containing radiation-absorbing filler is structured gel containing 51-63 wt % of 5-10% aqueous polyvinyl alcohol solution, 4-7 wt % sodium lignosulphonate, 9-12 wt % of 25% aqueous ammonia solution and 24-30 wt % of electroconductive technical carbon, and starting components of the concrete are taken in volume ratio portland cement:sand:hardening water:porous aggregate:carbon-containing radiation-absorbing filler of 1:(0-0.3):(0.4-0.6):(1.5-2.3):(0.1-0.4), respectively. A method of producing radiation-proof structural concrete from said mixture, which includes preparing mortar from portland cement, sand, hardening water, porous aggregate and carbon-containing radiation-absorbing filler followed by solidification thereof, wherein said carbon-containing radiation-absorbing filler is prepared in advance as follows: dissolving powdered sodium lignosulphonate in aqueous ammonia solution, mixing said solution with aqueous polyvinyl alcohol solution and dispersing granular electroconductive technical carbon in the obtained solvent by adding in portions with mixer rate of 1400-2000 rpm, after which the carbon-containing radiation-absorbing filler is added to hardening water of the cement-sand mixture.

EFFECT: obtaining effective radiation-proof structural material with wide-band absorption of electromagnetic radiation.

2 cl, 1 dwg, 1 tbl